Korean Style Pneumatic Rescue Thrower PTQ20-Y100S70 | 20 MPa, ≥100 m Land / ≥70 m Water

The Korean-style pneumatic rescue thrower is a compact, shoulder-fired water rescue line thrower that delivers a floating projectile 100-120 metres over land and 70-80 metres across water at 20 MPa working pressure. Weighing under 3.5 kg with a 4 mm high-tensile rope rated at 2000 N, this portable rescue thrower bridges the gap where hand-thrown throw bags fall short and rescue boats cannot launch in time.

Designed for fire departments, coast guard units, and flood rescue teams that need a reliable, instantly deployable remote rescue buoy for fast-moving water and wide flood channels.

It fires a line or an auto-inflating life ring across the gap in under five seconds. The shoulder-fired layout means no boat, no wade-in, and no open flame. This page explains what it is, how its three firing methods work, and which small team should buy one.

A hand-thrown throw bag reaches about 15 metres on a good day, while a Korean style pneumatic rescue thrower pushes a line or an auto-inflating lifebuoy out to at least 100 metres on land and at least 70 metres on water, more than six times the reach.

We supply Korean-style rescue throwers to fire departments, coast guard units, and flood rescue teams worldwide. Bulk orders ship with custom logo printing, private-label packaging, and OEM configuration support. Reach out for wholesale pricing, a full product catalog, and a quote tailored to your team fleet size.

Table of Contents

Product Introduction	Safety Guidelines
Key Specifications	Maintenance and Care
What's in the Box	Troubleshooting
Model Comparison	Rescue Thrower FAQ
How It Works	Wholesale and OEM
Applications	About Us: Supplier

Product Introduction: Why the Korean Style Pneumatic Rescue Thrower Wins on a Budget

A hand-thrown throw bag reaches about 15 metres on a good day, while a Korean style pneumatic rescue thrower pushes a line or an auto-inflating lifebuoy out to at least 100 metres on land and at least 70 metres on water, more than six times the reach.

The pneumatic launcher runs at 20 MPa (about 200 bar), uses a lightweight shoulder-fired body, and swaps its high-pressure external cylinder in seconds without tools.

It exists for the crews a heavy frame-mounted system leaves behind: a small fire station with a two-person water detail, a township rescue boat, or a marina patrol cart working narrow gaps on a real budget.

Where a throw bag falls short and a heavy anchor-hook class would be overkill, this pneumatic rescue thrower covers the gap. Read on for the three firing methods, the kit contents, and how to deploy by your measured water width.

External Cylinder: Swap in Seconds, No Tools

The high-pressure bottle screws onto the outside of the pneumatic body. When the bottle runs low, you uncouple it, drop in a fresh filled cylinder, and keep shooting.

• No workshop, no wrench, no waiting between shots
• The external cylinder layout keeps the valve away from a hot barrel, which helps reliability in summer heat
• The trade-off is a slightly wider profile and a touch more recoil than folded-stock models; for a 100 m class shore rescue, that trade is worth it

Shoulder-Fired, Not Bench-Fired

This is a shoulder-fired tool, not a tripod tool. You brace the stock against your shoulder, sight along the barrel, and pull the trigger.

• No base to unfold, no legs to level, no angle pins to set
• A two-person crew can be ready to fire in under a minute from the moment the truck stops
• It is light enough to grab and run with, so it lives on the truck, not in a storage closet

What the Kit Actually Contains

Each Korean style unit ships as a ready-to-use kit rather than a bare gun, so you can drill with it the day the aluminum hard case arrives. The full part list, quantity, and notes are laid out in the What's in the Box section below; check it against your own roll-call before you order.

Key Specifications: PTQ20-Y100S70 Korean Style Rescue Thrower, 20 MPa, ≥100 m Land / ≥70 m Water

Spec sheets look like a wall of numbers. Below we turn them into decisions: what 20 MPa buys you on this Korean style rescue thrower, why water range is shorter than land range, and which rope goes on which job. The quick-reference table lists the core numbers of the PTQ20-Y100S70 before you read on.

Parameter	Value	What It Means
Model	PTQ20-Y100S70	The single Korean style model in this family
Compliant standard	GB/T 27906-2011	National standard for rescue throwers (pressure, line pull, inflation time)
Working pressure	≥200 bar (about 20 MPa)	High pressure in a compact bottle keeps the body light
Launcher weight	Lightweight shoulder-fired design	One firefighter can carry and shoulder-fire it alone
Land range	≥100 m	Thin 4 mm rope, low drag in flight
Water range	≥70 m	Life ring drag reduces range vs land shots
Working temperature	-10°C to 45°C	Never exceed 60°C internal truck temperature
Storage temperature	-20°C to 55°C	Spare bottles stored in a cool, dry spot

Working Pressure: 20 MPa in a Compact Pneumatic Bottle

The PTQ20-Y100S70 runs at a working pressure of at least 200 bar, about 20 MPa. That high working pressure packs a lot of air into a small bottle, which is exactly how the pneumatic body stays light.

• A scuba-style external cylinder screws onto the manifold; the fast-acting pneumatic valve dumps stored air behind the projectile (the payload that carries the rope) on trigger pull
• Flight time to target is a few seconds, so the 4 mm rope pays out cleanly behind the head
• Per GB/T 27906-2011, pressure-based pneumatic throwers are classed by nominal working pressure

Land Range vs Water Range: Read the Right Number

On every shot, water range is shorter than land range. The PTQ20-Y100S70 reaches at least 100 m on land and at least 70 m on water.

• Every shot drags a thin 4 mm rope behind it, almost invisible to the air
• A water shot pulls an auto-inflating life ring that opens into a half-metre-wide chamber and drags like a brake
• When you spec a unit for open-water rescue, compare water to water, not land to water

Rope: One 4 mm Line for Both Land and Water

The Korean platform ships with a single rescue rope, not two. It is 4 mm in diameter, 120 m long, and rated at least 2000 N, and the same line does both jobs: you swap the head, not the rope. A solid land head rides it to dry ground, and an auto-inflating lifebuoy head rides it across open water.

There is no separate water-only rope on this class. Water range is shorter than land range not because a heavier line is used, but because the buoyant life ring opens in flight and drags like a brake. The table below lists the one universal line by diameter, rated strength, and length.

Rope	Diameter	Rated Strength	Use
Universal rescue line	About 4 mm	≥2000 N	120 m; dry ground, bridge decks, flooded streets, and open water

Auto-Inflating Lifebuoy: Inflates on Impact, About 5 Seconds

The water projectile ends its flight as an auto-inflating lifebuoy. On impact with the surface, a water-activated plunger opens the CO2 valve inside the head.

• The lifebuoy inflates in about five seconds on water impact, providing enough buoyancy to support an adult in the water
• It stays afloat high and bright during the wait while the rescue boat arrives
• Test the trigger manually during monthly inspection, because a stale CO2 cartridge is the top reason a lifebuoy fails to inflate on call

What's in the Box: Your Korean Style Rescue Thrower Package Contents

Every Korean style rescue thrower ships as a complete, ready-to-use pneumatic kit in a foam-cut aluminum hard case. This rescue thrower package never arrives as a bare gun. The table below lists the standard configuration so you know exactly what arrives on your dock, and you can cross-check it against your own departmental kit list before you place the order. This makes it ideal for coast guard rescue operations, fire department water rescue teams, and professional water rescue units that need reliable performance in swift water rescue scenarios and flood rescue equipment deployments.

Standard Item	Qty	What It Does
Launcher body (shoulder-fired, 20 MPa)	1	The lightweight pneumatic shoulder-fired frame
External high-pressure cylinder	1	Scuba-style connector, shipped empty for local fill
Universal rescue rope (4 mm × 120 m, ≥2000 N)	1	One line for both land and water shots; swap the head, not the rope
Auto-inflating life ring head	1	Inflates on water impact in about 5 s
Land projectile head (orange HDPE)	1	Reusable solid head for line shots
Pressure gauge, filling adapter, cleaning rod	1 set	Pre-use checks and basic maintenance
Aluminum hard case with foam insert	1	Every part has a cut-out home
English operation manual	1	Safety and servicing steps written out

Optional Accessories Worth Adding on Day One

Most teams add a few spares with the first order, because a dead spare on scene is worse than no spare at all.

• Spare cylinder: at least one extra bottle per truck so you are not hunting a dive shop mid-call
• Spare rope: one extra 4 mm × 120 m line per kit, so you are not splicing a frayed end on scene
• Optional short anchor-hook head: ordered separately rather than fitted in the standard tray, for crews that also need to catch a low balcony, pier rail, or concrete lip
• Spare O-ring and seal kit: silicone grease included, never petroleum jelly
• Replacement CO2 charge for the lifebuoy head: the number-one consumable on this thrower
• Spare auto-inflating lifebuoy bladder: keep a sealed spare ring ready so a punctured lifebuoy does not bench your pneumatic kit
• Carry sling and spare head pouch: keeps the shoulder-fired unit mobile on the truck step

Wear Parts and Reference Replacement Cycle

Some parts on your pneumatic rescue thrower are designed to wear out before the body does, and a worn seal or a stale CO2 cartridge fails on the first real call rather than on the bench. The table below sets a reference replacement rhythm for each consumable.

Treat these intervals as a starting point: crews that train hard run O-rings and ropes sooner, so shorten the cycle when your shot count climbs.

Wear Part	Reference Cycle	Why
Main O-ring set	About 12 months or 50 shots	Pressure seal degrades with age and use
Rope (land or water)	Retire immediately after a hard shock load; otherwise inspect yearly	Broken fibers hide under the jacket
Life-ring CO2 cartridge	Check the date monthly; replace past expiry	A stale cartridge is the top cause of a dead ring on call
Life-ring bladder	Per visible damage or annual bench test	UV and folds slowly eat the material
HDPE projectile head	Retire on cracks or bent fins	Cracks change flight and break the seal

Packaging and Shipping Method

The thrower rides in a foam-cut aluminum flight case, about carry-on size. Outer carton dimensions and gross weight are reference values, confirmed on the order sheet.

• The rescue thrower cylinder ships empty by default: charged bottles are dangerous goods, and filling locally at a dive shop is the normal lane
• Need pre-charged bottles? Tell us the destination country at RFQ stage and we will quote the approved lane
• For multi-unit orders, cases are palletized and strapped; the hard case itself doubles as the field carry case for each rescue thrower

Korean Style Rescue Thrower: One Model PTQ20-Y100S70, Three Firing Methods

The Korean style family is built around a single model, the PTQ20-Y100S70. It runs on one 20 MPa (about 200 bar) compressed-air platform, uses a lightweight shoulder-fired body, and complies with GB/T 27906-2011. What changes on scene is not the gun, but the firing method you select for the job. The catalog defines three firing methods for this model: land rope throwing, water life-ring throwing, and other general-purpose line work. The table below lines them up so you can match the head to the gap you actually face.

Firing Method	Payload / Head	Rated Range	Typical Scene
Land rope throwing	Solid HDPE land head on a 4 mm line	≥100 m on land	Dry ground, bridge decks, flooded streets, boat-to-boat line transfer
Water life-ring throwing	Auto-inflating life ring head	≥70 m on water	Man overboard, open-water rescue, dockside and lake pickup
Other line throwing	General-purpose line head / optional short hook head	≥100 m on land	Low balconies, pier rails, concrete lips, general rope transfer

A few notes on the table: the water life-ring method is the one man-overboard teams reach for first, because the ring opens on impact and gives the victim something bright to grab; the land rope method is for pulling a working line across a dry gap or a flooded street; the other line-throwing method, with the optional short hook head, is for crews that also need to catch a low ledge rather than drop a ring in the water.

Buyers often ask how this class compares to the American frame-mounted system. The trade-off is straightforward:

• The Korean PTQ20-Y100S70 is shoulder-fired and lightweight, reaching at least 100 m on land and at least 70 m on water
• The American unit is frame-mounted, adds a folding support rod and a recoil buffer, and pairs with a high-strength anchor claw for high-rise and cliff work
• Pick the Korean for short shore and boat-to-boat gaps, and the American for high-rise, cliff, and ship line transfer

How to Pick the Firing Method

Measure the widest water you actually cover, add 30% for wind and current, then pick the head for that gap. You do not buy three different guns; you buy one PTQ20-Y100S70 and swap the head in under a minute once the crew has drilled it.

• Open-water or man-overboard call: use the water life-ring head (rated at least 70 m on water)
• Dry gap, flooded street, or boat-to-boat line: use the land rope head (rated at least 100 m on land)
• Low balcony, pier rail, or concrete lip: add the optional short hook head as an extra

One Body, Three Heads: What Actually Changes

All three firing methods share the same PTQ20-Y100S70 shoulder-fired body and the same external 20 MPa cylinder. Out of the case, the only thing you swap is the head, not a bigger gun.

• Standard tray: ships with the land head and the water ring head; no anchor-hook parts fitted
• Optional short hook head: ordered separately, for crews that also need to catch a low balcony, pier rail, or concrete lip
• The same 4 mm line stays on for every head; you change the payload, never the rope

Selection Decision Tree

Work through these four questions in order and the answer falls out. Buy by your measured gap, not by the headline range on the box.

1. Is it a water rescue, man overboard, or dockside pickup? Use the water life-ring head and stop here.
2. Is it a dry gap, a flooded street, or a boat-to-boat line? Use the land rope head.
3. Do you also need to catch a low balcony, a pier rail, or a concrete lip? Add the optional short hook head.
4. Is your widest gap beyond the ≥100 m land / ≥70 m water rated reach? This Korean class is out of range; look at the American frame-mounted unit instead.

How the Korean Style Pneumatic Rescue Thrower Works: Four Steps, Three Payloads

You do not need to be an engineer to operate this pneumatic thrower. In plain words, it is a controlled air blast: stored gas in the external cylinder, a fast-acting pneumatic valve, a copper barrel, and a flying head. No gunpowder, no explosion. The speed of the pneumatic valve is what separates a reliable unit from a cheap one.

The Four-Step Cycle

The cycle is simple, and most misses come from a tangled rope, not bad aim.

• The external cylinder holds compressed air at 20 MPa; load the chosen projectile and lay the line out so it pays without tangling
• Connect the pressure source, check the gauge reads in the green, aim, and pull the trigger; the fast-acting valve snaps open
• Expanding air pushes the launching head down the barrel and out the muzzle

Shoulder-Firing Drill: From Case to First Shot

The Korean style rescue thrower is shoulder-fired, and a consistent stance is what turns a nervous first shot into a repeatable one. Below is the drill crews practice on the range before they ever load it on a scene.

Shoulder stance and aiming. A firm shoulder brace keeps the shot flat; a loose one lets recoil lift the muzzle.

1. Tuck the rubber butt plate into the shoulder pocket, not against the collarbone; plant feet shoulder-width, non-trigger foot slightly forward
2. Bring the stock to cheek level, sight along the barrel top, and keep both eyes open to watch both gap and victim

Loading: safety, projectile, and line. Load in the right order so the line pays cleanly on the shot.

1. Flip the safety catch on before touching the projectile; seat the chosen head in the muzzle until it clicks
2. Thread the line end into the head's eye and coil the rope in loose figure-eights at your feet
3. Only then connect the filled external cylinder and confirm the gauge reads in the green band

Firing and recoil control. A smooth squeeze beats a jerk; lean into the recoil and keep the muzzle down range.

1. Call a clear warning and wait for the safety officer to confirm the path is clear
2. Press the stock firmly into your shoulder and squeeze the trigger smoothly rather than jerking it
3. Expect firm but manageable recoil on this lightweight unit; never wrap your non-trigger hand over the muzzle end

After the shot: rope and projectile recovery. Once the line crosses, the rope handler takes over and pulls the working rope through.

• Recover the head: wait until the line goes slack, then walk it back hand over hand; do not let the current drag it under
• Retrieve and inspect: the orange HDPE land head floats, so wade or boat out; check nose, fins, and O-ring
• Clean and stow: rinse off mud and salt before the head goes back in the case

Land Payload: Thin Nylon Line Across Dry Ground

The land projectile is a solid rocket head for dry ground, bridge decks, rooftops, and parking garages, riding the same thin 4 mm line rated at least 2000 N that the water head uses.

• Use it to get a line across a flooded street or between two vessels, then pull a heavier working rope through behind it
• The orange HDPE head is reusable: inspect nose, fins, and seals, then rinse mud and salt

Water Payload: Auto-Inflating Lifebuoy for Open Water Rescue

The water projectile fires the flat orange head across the water. On impact, the water-activated plunger opens the CO2 valve and the lifebuoy blooms open in about five seconds.

• Once full, the lifebuoy floats high and bright, giving the victim a visible handhold while the crew hauls the line
• The same 4 mm line trails the buoyant ring; the ring itself floats high and bright, so the victim can actually find the handhold even after dark

Short Anchor-Hook Payload (Optional Add-On)

The short anchor-hook head can be ordered as an optional extra for low edges. It is a compact shaped hook, not a heavy high-strength claw of the kind you find on the American class.

• It is a compact shaped hook that catches on a railing, a pier rail, or a low concrete lip to transfer a heavier line
• Practice matters: a hook that bounces off a rail and falls back is a public hazard; train on a wall first and never load the hook until it is seated on a solid edge

Switching Heads in Under a Minute: Step by Step

One rescue thrower body, three heads. Payload swaps are the main reason small teams pick this platform, and the whole change takes under a minute once the crew has drilled it.

1. Safety on: flip the safety catch before touching anything, then disconnect the external cylinder so the manifold is dead
2. Release the current head from the muzzle seat; lay it on the foam tray in the case so it does not roll in the mud
3. Pick the new head: solid land head for a dry gap, water ring head for open water, or short hook head for a low ledge
4. Seat the new head until it clicks; the same 4 mm line stays on the gun, so you only swap the head itself (solid land head for a dry gap, water ring head for open water, or optional short hook head for a low ledge)
5. Reconnect the filled cylinder, watch the gauge come up into the green, and the crew is ready to shoot again

The most common setup slip is a tangled or under-laid line, not a wrong rope: the 4 mm line stays on for every head, so lay it out in loose figure-eights and confirm the chosen head is seated before you call clear.

Applications: Who Buys the Korean Style Rescue Thrower

The shoulder-fired Korean unit is built for short gaps and tight budgets, where a heavy frame-mounted system would never leave the storage closet. As a budget-class pneumatic rescue thrower, it targets the teams in the table below that order it most often.

Read the gap column first: it shows the typical water distance each crew works, and that number, not the price tag, should decide whether this rescue thrower fits your call list.

Scenario	Typical Gap	Recommended Model	Why It Fits
Narrow river, dock rescue	Under 70 m water	PTQ20-Y100S70	Lightweight, simple, water ring head
Urban river, mixed calls	70-100 m gap	PTQ20-Y100S70	Covers mixed land and water shots
Wide flood channel	Up to 100 m land	PTQ20-Y100S70	≥100 m land range for line transfer
Marina man overboard	50-80 m from dock	PTQ20-Y100S70	Buoyant life ring, no open flame on deck
Training and drills	Various	PTQ20-Y100S70	Reusable HDPE heads keep cost down

Small Fire Stations: Standard Water Rescue Duty

A small station with a two-person rescue detail does not need a 120m system. It needs a light tool on the truck for a narrow river or a flooded underpass.

• The lightweight unit lives on the engine step; one firefighter shoulders it, the other feeds the line
• Within a minute a buoyant auto-inflating ring is beside the victim while the boat launches
• Emergency bureaus stock these kits in regional depots, buying the same model year after year

Township Water Brigades: Rivers and Lakes Close to Home

Township brigades cover rivers no one else patrols: shallow near the bank, deeper in the middle, with the victim drifting fast after a summer storm.

• The unit reaches at least 100 m on land and at least 70 m on water, covering most local rivers and lake edges
• At this lightweight weight, one volunteer runs it while another holds the line; the shoulder-fired layout has no base to unfold, so new volunteers learn it fast

Marina Operators: Man Overboard on the Dock

Man overboard usually happens within 50 m of the dock, not out at sea. A hand-thrown heaving line reaches 20 m at best.

• The unit fires the buoyant life ring at least 70 m from the dock edge along the 4 mm line, giving the victim something bright to grab within seconds
• The no-open-flame pneumatic design is safe on deck near fuel, so workboats and patrol carts carry one alongside a throw bag

New Flood Rescue Teams: Training Kit That Grows With You

A newly formed team does not need a fleet. It needs one reliable tool, trained on by every volunteer, that survives repeated drills. For flood and water-safety planning, teams also review NOAA flood safety guidance and water-safety materials from international relief organisations before the season starts.

• Light enough for a volunteer to carry, simple enough to learn in half a day, cheap enough to keep on the truck all flood season
• The orange HDPE heads are reusable, which keeps training cost down; once the team grows, add a longer-range unit without retiring this one

A Typical On-Scene Sequence

Picture a summer afternoon: a swimmer drifts past the swim buoys, and the nearest bank is about 75 m away. The truck stops, one firefighter shoulders the lightweight unit, the other lays the 4 mm line in loose figure-eights.

The water head goes across, the lifebuoy inflates within five seconds of hitting the surface, and the victim grabs it while the boat finishes launching. That is the call this pneumatic tool is sized for.

Related Water Rescue Equipment and Lifesaving Gear

Beyond the Korean style rescue thrower, our catalogue covers a full range of water rescue equipment and lifesaving equipment for professional teams. This includes swiftwater rescue gear, emergency rescue equipment, marine rescue equipment, and search and rescue equipment used by first responder equipment procurement teams worldwide. As a wholesale rescue equipment supplier, we offer OEM and bulk pricing for distributors, government agencies, and relief organizations sourcing water safety equipment and CO2 powered rescue thrower systems.

Safety Guidelines for Your 20 MPa Korean Style Pneumatic Rescue Thrower

A rescue thrower stores 20 MPa (about 200 bar) of compressed air behind the launching head. It is safe when the drill is , and unforgiving when it is not.

The rules below are the ones every crew member repeats before every shift, and they apply to every pneumatic rescue thrower on the truck, charged or not. They follow standard occupational rescue practice; for workplace rescue setups, see OSHA's guidance on rescue operations.

High-Pressure Cylinder Safety

• Never leave a charged cylinder in direct sun or inside a closed truck on a hot day; the cabin can pass 60°C and pressure climbs with temperature
• Never overfill past the rated 20 MPa; over-pressurizing the bottle is the one mistake that cannot be walked back
• Never disassemble the valve, manifold, or gauge yourself; a trained workshop handles that, on an empty bottle, and never modify the rescue thrower to run at a different pressure
• Store spare bottles upright, secured against rolling, in a dry ventilated spot away from heat sources

Firing Direction and Bystander Safety

• Never point the thrower at a person, an animal, a vehicle, or a glass window, even with the safety on and no head loaded
• Before every shot, the safety officer walks the flight path and confirms no one is in the line; call a loud warning, wait for the reply, then fire
• Keep a clear safety zone of at least 5 m behind and 5 m to either side of the shooter; the rescue thrower's muzzle jump and the whip of air surprise people standing too close
• Do not shoot across a public walkway, a road, or a moored vessel unless the area has been formally cleared

Recoil Control at 20 MPa

A full 20 MPa shot from this rescue thrower kicks, but it is manageable when the body is set right.

• Tuck the rubber butt plate firmly into the shoulder pocket; a loose mount lets the muzzle rise and throws the shot high
• Lean slightly into the direction of fire, feet shoulder-width, non-trigger foot forward; absorb the recoil through the legs, not the wrist
• Squeeze the trigger smoothly instead of jerking it; a jerk yaws the barrel the moment the valve opens
• Never wrap the non-trigger hand over the muzzle end, and never fire one-handed

Weather Limits

• Do not fire the rescue thrower in strong wind that pushes the projectile more than you can correct for; a crosswind near 10 m/s drops the water shot by roughly 10 to 15 m
• Stop work in heavy rain, low visibility, or any lightning activity; a wet grip and a slippery shoulder add up to an uncontrolled shot
• Below -10°C or above 45°C ambient, the rescue thrower is outside its rated working band; wait for conditions or follow a rated cold-weather plan

Storage and Unauthorized Use

• Keep the case closed and latched between calls; children and untrained bystanders must not handle the rescue thrower
• Only crew who have completed the hands-on course may load, charge, or fire this rescue thrower; reading the manual is not the same as range practice
• Long storage: empty the cylinder, relax the seal, keep the rescue thrower in a dry locker at -20°C to 55°C, and check the gauge on the first of every month

Maintenance and Care: Keep Your Korean Style Rescue Thrower Ready for the First Shot

A Korean style pneumatic rescue thrower is a pressure device. Treat this pneumatic tool like an extinguisher, not like a toolbox. The checklists below keep the unit ready, keep the crew safe, and extend the service life of every part.

Pre-Use Inspection: 90 Seconds Before Every Shot

Run these before every shot; it is the best habit your team can build.

• Confirm safety is on while loading; check cylinder pressure gauge reads in the green
• Inspect the projectile head for cracks; check rope for tangles or broken fibers
• Confirm the life ring seal is intact; clear the launch path of bystanders and wires
• Confirm the rope handler is ready; shout a warning before firing

Cylinder Pressure and Storage Temperature

Pressure is the life of the thrower. Read the gauge before every operation, and keep at least two filled spares on the truck.

• For the 20 MPa external cylinder, swap to a freshly filled bottle before a long drill
• Storage -20°C to 55°C; operating -10°C to 45°C; never leave a charged bottle in a sun-baked truck (interior can exceed 60°C)

Rope, Life Ring, and O-Ring Care

Rope is the weakest link. Run your gloved hand along the full length after every use, looking for fuzzing, flat kinks, or UV discoloration.

• The 4 mm × 120 m line is rated at least 2000 N and serves both land and water shots; retire any rope that took a hard load even if it looks fine
• The auto-inflating life ring needs three checks: CO2 cartridge date, firing pin action, bladder airtightness
• Replace the main O-ring set every 12 months or 50 shots; lubricate with silicone grease only, never petroleum jelly

Monthly and Annual Checklists

A 90-second pre-use check catches the obvious failures; the monthly and annual lists below catch slow leaks and aged seals on this pneumatic tool. Run the monthly items on the first of every shift month, and book the annual bench test the way you would an extinguisher service.

When	Checks to Run
Monthly	Gauge reads correctly; O-rings pliable; life-ring CO2 cartridge in date; rope end-for-end inspection; firing pin action tested manually
Quarterly	Trigger travel smooth; barrel free of grit; case latches and hinges tight; rope coiled figure-eight in a clean dry spot
Annually	Replace main O-ring set; bench pressure test; replace life-ring bladder per damage; re-grease seals; log everything in the service book

Troubleshooting Your Rescue Thrower: Common Issues and Fixes

Most field problems on a pneumatic rescue thrower are not mysterious. A short shot, a slow leak, or a stuck trigger almost always traces to one of a handful of causes. The table below maps the symptom to the likely cause and the fix, in plain steps, so your rescue thrower is back in service in minutes.

Symptom	Likely Cause	What to Do
Range noticeably short	Low cylinder pressure; tangled rope; wrong angle; strong crosswind	Top up to 20 MPa; re-coil the rope in loose figure-eights; open the angle slightly; subtract wind from your expected reach
Cylinder will not take air	Dirty seal; wrong adapter; valve only half open	Clean the scuba fitting and O-ring; confirm the adapter matches the fill station; open the cylinder valve fully, not halfway
Trigger feels stuck	Dirt or grit in the mechanism; dried grease; bent firing pin	Field-strip the trigger per the manual; wipe clean; re-lube with silicone grease; if the pin is bent, bench it and do not force the trigger
Rope tangles on every shot	Tight coil; kinked rope; handler pulling back	Re-coil in loose figure-eights; cut out the kink or retire the rope; tell the handler to pay out, not hold
Air leaks from the head or valve	O-ring hardened or pinched; seal not seated	Depressurize, inspect the O-ring, replace if cracked, re-seat with silicone grease only
Gauge reads oddly or pegs	Gauge knocked out of calibration; water in the line	Replace the gauge; flush the line; never fire off an unknown reading
Projectile comes loose in flight	Head not clicked home; worn muzzle socket	Reseat until you hear the click; if the socket is worn, retire the head and bench the launcher

Rule of Thumb

• If a fix on your rescue thrower needs a wrench, a new part, or the manifold open, the job goes to the bench, not the riverbank
• Document every fault in the service book; a repeating fault on the same part tells you it is time to retire it, so the rescue thrower never surprises you on a call

Range Noticeably Short: Step-by-Step Fix

A shot that lands short is the most common field complaint, and it almost never means the gun is broken.

• Likely causes: cylinder pressure dropped out of the green band; the rope was coiled too tight and dragged; the launch angle was too flat; a crosswind pushed the light projectile down
• Fix in order:
  1. Top the external cylinder back to 20 MPa and re-check the gauge before you fire again
  2. Re-coil the rope in loose figure-eights at the shooter's feet so it pays out without catching
  3. Open the launch angle slightly, and subtract the crosswind from your expected reach rather than aiming at the full rated number
• Prevention: keep at least two filled spare bottles on the truck, and record the gauge reading after every drill so a slow leak shows up on paper before it shows up on the river

Cylinder Will Not Take Air

• Likely causes: the scuba fitting or O-ring is dirty; the filling adapter does not match the local fill station; the cylinder valve is only half open
• Fix: vent the bottle, swab the dive fitting and its O-ring, verify the charging adapter suits your local fill station, then spin the cylinder valve all the way open rather than halfway. Never force a mismatched connector.
• Prevention: keep the filling adapter capped when not in use, and lubricate the O-ring with silicone grease only

Trigger Feels Stuck

• Likely causes: dirt or grit in the trigger mechanism; dried grease; a bent firing pin
• Fix: field-strip the trigger per the manual, wipe it clean, and re-lube with silicone grease. If the firing pin is bent, bench the launcher and do not force the trigger.
• Prevention: rinse mud and salt off after every flood or harbour call, and never store the rescue thrower under a damp tarp where grit works into the mechanism

Rope Tangles on Every Shot

• Likely causes: the rope is coiled too tight; it has a hidden kink; the rope handler is pulling back instead of paying out
• Fix: re-coil in loose figure-eights, cut out any kink or retire the rope, and tell the handler to feed the line out smoothly rather than hold tension.
• Prevention: retire a rope immediately after a hard shock load, because broken fibers hide under the jacket and bind on the next shot

Air Leaks from the Head or Valve

• Likely causes: the main O-ring has hardened or been pinched; the seal is not seated; the head is not clicked home
• Fix: depressurize first, inspect the O-ring, replace it if cracked, and re-seat with silicone grease only. Reseat the projectile head until you hear the click.
• Prevention: fit a fresh main O-ring kit on the 12-month / 50-shot rotation, whichever milestone arrives first

Gauge Reads Oddly or Pegs

• Likely causes: the gauge was knocked out of calibration; water has worked into the line
• Fix: replace the gauge and flush the line. Never fire off an unknown reading.
• Prevention: check the gauge against a known reference on the annual bench test, and keep it protected from impact in the foam-cut case

Rescue Thrower FAQ: Frequently Asked Questions

Below are the questions small teams ask us most about the Korean style pneumatic rescue thrower. Every answer is written out in full. If your question is not here, send it through the contact form and we will reply within one business day.

What is the difference between a rescue thrower, a line thrower, and a rope thrower?

Mostly the name. A rescue thrower is the umbrella term for a compressed-air device that fires a line across a gap; line thrower and rope thrower are the same hardware described by what it sends. On a spec sheet or tender, search all three phrases so you do not miss comparable models.

What exactly is a Korean style pneumatic rescue thrower?

It is a compressed-air pneumatic device that fires a launching head across a gap on a thin 4 mm line, ending in either a solid land head or an auto-inflating lifebuoy.

• The Korean layout means the high-pressure cylinder mounts externally on a lightweight shoulder-fired pneumatic body, so you can swap bottles in seconds
• Land reach is at least 100 m, and water reach is at least 70 m
• No gunpowder, no open flame, no pyrotechnic licensing needed

How far can it actually shoot in the real world?

Rated range is measured in ideal conditions on a calm day. In field use, expect somewhat less than the rated number once you add wind, current, and a cold cylinder.

• On water in a crosswind, expect reach to drop below the ≥70 m rated figure, because wind and current both eat into it
• Measure your widest real gap and add 30% for wind and current before you plan the shot

Do I need all three payloads, or can I start with one?

Most small teams start with the water payload, because man-overboard is the call they fear most. The land head costs little extra and covers flooded streets and boat-to-boat lines. The short anchor-hook head is available as an optional add-on, not fitted in the standard tray. Buy the water head first, add the land head on your next order.

Does the lifebuoy really inflate on its own?

Yes. The water head uses a water-activated plunger that opens the CO2 valve on impact. The lifebuoy inflates fully in about five seconds and provides enough buoyancy to support an adult in the water. Test the trigger manually during monthly inspection, because a stale cartridge is the number one reason a lifebuoy fails to inflate on call.

Can one thrower fire more than once?

Yes. On this external-cylinder pneumatic unit, keep firing until the cylinder pressure drops, then swap a fresh filled bottle. A full 20 MPa pneumatic cylinder supports multiple shots before the gauge falls out of the green. As a rule, run at least two topped-up bottles aboard each truck.

Is a 20 MPa system dangerous to operate?

Higher pressure means more energy, so the safety rules are real. The Korean unit needs a firm shoulder brace and a clear 5 m safety zone behind the shooter.

• Never point it at a person; the unit carries a safety lock
• The pressure gauge lets you see the level before you fire
• When used correctly, it is one of the safest tools in the water rescue kit

Which model should a small fire station buy?

The model is the PTQ20-Y100S70. It covers narrow rivers, flooded underpasses, and dock pickups at least 100 m on land and at least 70 m on water.

• It is lightweight, cheap to run, and easy to train on
• It ships with the water life-ring head and the land rope head
• Add the optional short hook head only if your crews also need to catch low ledges

How many people does it take to operate safely?

Minimum three people to operate safely. A two-person team can manage in a pinch, but a solo operator should not fire a pressure thrower on a rescue scene.

• The shooter aims and fires; the safety officer watches the victim and calls stop if the line path is not clear
• The rope handler feeds the 4 mm line out smoothly
• More shots miss because of a tangled rope than bad aim

How do I fill the cylinder, and can I ship it pre-charged?

The cylinder fills through a standard scuba-style connector at a local diving shop or gas supplier. We recommend shipping the pneumatic thrower empty and filling locally, because charged high-pressure bottles are dangerous goods. If you need bottles pre-charged, share the destination country when you send the RFQ and we will work through the approved shipping lanes with you.

Does it come with GB/T 27906 certification?

The PTQ20-Y100S70 complies with GB/T 27906-2011 requirements for pressure, line pull, and inflation time. Test reports can be provided on request. If your tender references GB/T 27906, tell us the model you want to bid and we will share the relevant report pages before you quote.

What is the working and storage temperature range?

Operate between -10°C and 45°C. Store between -20°C and 55°C. Never leave a charged cylinder in a closed vehicle in summer, because the interior can exceed 60°C. For winter work, the external-cylinder design holds pressure more steadily than a CO2 cartridge unit.

How often do I need to service the thrower?

Quick inspection after every use. Gauge and O-ring check monthly. Full rope and trigger check every quarter. Annual O-ring replacement and bench service. The main body has a long rated service life, while projectiles and life-ring bladders are treated as scheduled consumables. Log every check in the service book.

When do I have to replace the rope?

Replace the rope if you see fuzzing, broken outer fibers, flat kinks, or UV discoloration.

• Replace immediately after a hard shock load, meaning a full person hanging on the rope, even if it looks fine
• Store coiled in a figure-eight, out of direct sun
• The 4 mm × 120 m line is rated at least 2000 N, and the same line works for both land and water shots

Can the projectile be reused?

Yes, projectiles are reusable. The orange HDPE land head floats and is easy to retrieve, which lowers cost for training teams.

• Inspect it for cracks after each use; the water head's CO2 charge is a consumable
• The head body itself is reusable once you replace the charge
• The optional short anchor hook is reusable as long as the claw is not bent

What is the MOQ for a wholesale order?

Exact MOQ and lead time depend on the order size and configuration, so they are written into the contract rather than quoted as a fixed number here; trial orders start small for first-time buyers.

The Wholesale section below covers sample policy, lead time, payment terms, and regional protection in full, or send us your target SKU and deployment date for a direct quote.

Can you put our logo on the case?

Yes. OEM branding is available on the aluminum hard case, the carry bag, and the body. Logo options include laser engraving on the metal parts, which is permanent, and pad printing on plastic end caps, which is cost-effective for bulk. Private-label packaging is supported on mid-to-bulk orders. Tooling and artwork fees are contact us for details.

Is training hard for a first-time volunteer?

No, training is not hard. Basic operation is simple: load the projectile, check the gauge, aim, and fire. A new volunteer can be comfortable in half a day of practice.

• We supply an English manual with every unit, and mid-to-bulk orders include a remote walk-through with your lead instructors
• Budget for at least one hands-on session, because safe operation depends on muscle memory

What is the difference between this and the American style thrower?

The Korean PTQ20-Y100S70 is external-cylinder, shoulder-fired, and lightweight, reaching at least 100 m on land and at least 70 m on water. The American body is frame-mounted, adds a folding support rod plus a recoil buffer, and pairs with a high-strength anchor claw for high-rise and cliff work. Pick by job, not by price tag.

What other names is a Korean-style rescue thrower known by?

This equipment is also called a line throwing device, line throwing apparatus, or rescue line gun in different regions. In marine safety contexts, it may be referred to as a pneumatic line launcher or rescue buoy launcher. All these terms describe the same core function: firing a floating rope to a person in distress from a safe distance.

Wholesale Korean Style Rescue Throwers: OEM and Bulk Supply for Distributors

Whether you are a distributor stocking a regional catalog or a fire bureau outfitting several stations, the procurement path for a wholesale pneumatic rescue thrower order looks the same. Exact MOQ and lead time are subject to contract.

Sample and Trial Order Policy

Most buyers want to touch the rescue thrower before they commit to a station-level order. We support a sample route so you can run your own drill before pricing the fleet.

• Sample units are available on request; sample cost and shipping are confirmed in the quotation and are credited back against a qualifying bulk order
• Sample lead time is typically shorter than production, because we pull from ready stock when a SKU is available
• Use the sample to train your lead instructors first; they then train the rest of the crew

Lead Time and Peak Season

• Standard production lead time is quoted per order and written into the contract, depending on the SKU and whether it is in ready stock
• Peak flood season runs May to September; orders placed in that window may see a longer lead time, so stock ahead of the season
• Urgent orders can be discussed; tell us the deployment date up front and we will tell you honestly whether it is feasible

MOQ and Payment Terms

• Trial orders start small; mid-volume orders price per unit with standard accessories; bulk framework agreements price per annual call-off
• The true MOQ shifts with the order size and configuration; it is nailed down in the contract rather than printed as a flat number here
• Payment is typically T/T with a deposit against the order and balance before shipment; larger framework agreements can discuss L/C terms

OEM, ODM, and Customization

OEM and ODM mean we build and brand the unit under your label rather than sticking a sticker on after. On this pneumatic thrower, that branding runs through the frame, the case, and the manual.

• Laser engraving on the aluminum body and case: a permanent, premium look
• Pad printing on plastic end caps: cost-effective for bulk runs
• Custom color (hi-vis orange or tactical black), private-label box art, manual, and warranty card on mid-to-bulk orders
• Specification tweaks, such as a different rope length or a dedicated life-ring package, are discussed on a project basis and quoted against your sample requirement

Packaging, Shipping, and Regional Protection

• Each rescue thrower ships in a foam-cut aluminum flight case; outer carton reference size is on the order sheet, and gross and net weights are confirmed per order
• Cylinders ship empty by default as dangerous-goods rules require; pre-charged lanes are quoted per destination country
• Every unit ships with an English manual; on bigger orders we set up a live remote training session with your lead instructors
• Spare parts we stock: O-ring kits, sealing discs, firing pins, spare ropes, and replacement life rings
• Serious distributors are offered regional protection: we ask you to share your target territory and keep other buyers out of it for the agreement term

About Us: Your Korean Style Rescue Thrower Supplier

We are a Korean style pneumatic rescue thrower supplier and wholesaler based in China, not a factory you have to chase through a trading office. We stock the shoulder-fired 20 MPa pneumatic platform, external-cylinder spares, and auto-inflating lifebuoy kits that small fire stations, township brigades, and marina patrol carts reorder year after year.

What We Solve for You

One contact covers the whole buy: the launcher body, filled-cylinder logistics, replacement CO2 charges, ropes, and private-label branding. You do not juggle three suppliers for one kit.

Quality and Certification You Can Reference

• Incoming parts, torque, and seals are checked at each station, and every unit passes a pressure and seal test before the case closes
• The PTQ20-Y100S70 complies with GB/T 27906-2011 for pressure, line pull, and inflation time; test report pages are sent on request
• We tell you straight which documents are available, and never over-promise on certification

OEM and Distributor Support

• Laser engraving on the aluminum case and pad printing on plastic end caps; private-label box art and manuals on mid-to-bulk orders
• Cylinders ship empty by default as dangerous goods require; tell us the destination country for pre-charged lane options
• Serious distributors get regional protection, and enquiries are answered within one business day

Our range spans pneumatic rescue throwers, floating rescue ropes, throw bags, and auto-inflating lifebuoy kits, serving distributors, fire departments, maritime teams, and training centers. Tell us your measured gap and scenario, and we will come back with a shortlist and an honest price range — no pushy sales talk.

• For heavier anchor-hook work on cliffs or ships, see the American style anchor hook rescue thrower
• Need an even more compact unit? Browse the portable rescue thrower series
• Pair every rescue thrower with a personal life jacket for the crew on scene