B67C Pneumatic breaker from Xiamen Jack hammer Machinery is a powerful handheld air-powered breaking tool designed for demolition, road work, mining assistance and utility maintenance. Its key selling points are strong impact force, wide jobsite adaptability, reliable continuous performance and clear safety-focused operating requirements. It is ideal for professional users who need an efficient pneumatic breaker for concrete, asphalt, rock and other hard material removal in demanding field conditions.
B47 Pneumatic breaker from Xiamen Jack hammer Machinery is a powerful handheld air-powered breaking tool designed for heavy-duty demolition and construction work. Its key selling points are strong impact force, high breaking efficiency, compact structure, reliable pneumatic performance and easy maintenance. It is ideal for professional users who need a durable breaker for concrete, rock, road surface and other hard material removal in demanding jobsite conditions.
G20A pneumatic hammer from Xiamen Jack hammer Machinery is a versatile handheld air pick designed for breaking, chiseling and trimming work in foundry, welding, construction, mining and maintenance applications. Its key selling points are strong impact force, wide application range, vibration-reducing design, progressive start and stable operation. It is ideal for professional users who need a reliable and comfortable pneumatic hammer for both heavy-duty breaking and precise surface work.
G16 pneumatic hammer from Xiamen Jack hammer Machinery is a compact and powerful handheld air pick designed for efficient breaking work in mining, road construction, demolition and industrial applications. Its key selling points are strong impact force, flexible operation, suitability for continuous use and convenient maintenance. It is ideal for professional users who need a dependable pneumatic hammer for tough field breaking and chiseling work.
G15 pneumatic hammer from Xiamen Jack hammer Machinery is a compact and powerful handheld air pick designed for efficient breaking work in mining, road construction, demolition and industrial applications. Its key selling points are strong impact force, portable design, stable continuous performance and easy maintenance. It is ideal for professional users who need a reliable pneumatic hammer for demanding daily breaking and chiseling work.
G12 pneumatic hammer from Xiamen Jack hammer Machinery is a durable and efficient handheld air pick designed for heavy-duty breaking work in construction, road maintenance, mining and public utility projects. Its key selling points are strong impact force, flexible handheld operation, wide application range and easy maintenance. It is ideal for professional users who need a reliable pneumatic breaking tool for continuous field work.
G10 pneumatic hammer from Xiamen Jack hammer Machinery is a powerful handheld air pick designed for efficient breaking and demolition work. Its key selling points are strong impact force, compact structure, flexible operation and wide application range in construction, road repair, mining and emergency rescue. It is ideal for professional users who need a reliable and easy-to-maintain pneumatic breaking tool for demanding field work.
C6 pneumatic hammer from Xiamen Jack hammer Machinery is a compact and efficient handheld air pick designed for breaking hard materials in mining, road work, demolition and construction applications. Its key selling points are strong impact force, portable design, easy handling and convenient maintenance. It is ideal for operators who need flexible, reliable and cost-effective pneumatic breaking tools for daily field work.
The RB777 Pneumatic Breaker Hammer is a heavy-duty pneumatic jack hammer designed for demanding concrete, asphalt, and industrial breaking. With a 57 mm piston, long 189 mm stroke, and 18.3 Hz impact rate, it delivers deep, controlled power. Requiring 3.0 m³/min airflow through a 19 mm hose, this hand held jack hammer offers reliable performance for tough, continuous jobsite work.
The TPB-90 Pneumatic Breaker Hammer is a heavy-duty jack hammer designed for serious concrete, asphalt, and industrial chipping work. With a 66.67 mm piston diameter, 152 mm stroke, and 1250 BPM, it delivers deep, controlled impact. Requiring 2.2 m³/min air flow through a 19 mm hose and 3/4" PT inlet, this hand held pneumatic jack hammer offers reliable power, durability, and efficiency on demanding job sites.
The TPB-60 Pneumatic Breaker Hammer is a heavy-duty hand held jack hammer powered by compressed air, designed for concrete breaking, road maintenance, mining, and industrial chipping work. With a 57.15 mm piston diameter, 100 mm stroke, and 1400 BPM, it delivers strong and stable impact. Its 2.0 m³/min air consumption, 19 mm air hose, and 32 × 155 mm shank make it reliable, efficient, and easy to maintain on real job sites.
The TPB-40 Pneumatic breaker hammer is a practical jack hammer for light to medium breaking work. With a 44mm piston, 146mm stroke, and 1050 bpm, this hand held jack hammer offers controlled, steady impact. Its 1.6 m³/min air consumption, 19mm hose, 3/4 (P/T) inlet, and 25×108mm shank make it an efficient, easy-to-use Pneumatic jack hammer for daily site tasks.
The B87C Pneumatic breaker hammer is a heavy-duty jack hammer for tough demolition and industrial breaking. This hand held jack hammer uses a 63.5mm piston, 327mm stroke, and 1200 bpm to deliver strong, steady impact. It runs on 3.0 m³/min air with a 19mm hose, 3/4 (P/T) inlet, and 32×155mm shank.
The B67C Pneumatic breaker hammer is a heavy-duty jack hammer built for demolition, roadwork, and industrial maintenance. This hand held jack hammer delivers steady power with a 50.75mm piston, 285mm stroke, and 1400 bpm, while using 2.0 m³/min air. It features a 19mm hose, 3/4 (P/T) inlet, and 32×155mm shank for jobsite reliability.
The B47 Pneumatic breaker hammer is a durable jack hammer designed for tough breaking and chiseling jobs in construction, roadwork, mining, and industrial maintenance. As a hand held jack hammer, it delivers steady impact with a 47.6mm piston, 100mm stroke, and 1400 bpm, while keeping air demand practical at 1.6 m³/min. Built for jobsite reliability, it uses a 19mm air tube, 3/4 (P/T) inlet, and 25×105mm shank, with simple upkeep: regular oiling and avoid empty strikes.
The G20A Pneumatic Air Pick Hammer is a heavy-duty hand held jack hammer built for extreme demolition. With 60J impact energy, a 48mm piston, and 155mm stroke, it delivers deep, powerful blows. Weighing 23KG and operating at 0.63Mpa with 28L/s air consumption, this Pneumatic jack hammer is ideal for concrete, road, and industrial breaking work.
The G16 Pneumatic Air Pick Hammer is a heavy-duty hand held jack hammer built for tough demolition work. With 55J impact energy, a 40mm piston, and 155mm stroke, it delivers deep, controlled blows. Weighing 15KG and operating at 0.63Mpa with 28L/s air consumption, this Pneumatic jack hammer is ideal for concrete, pavement, and industrial breaking tasks.
The G15 Pneumatic Air Pick Hammer is a heavy-duty hand held jack hammer built for hard concrete and pavement breaking. With 55J impact energy, a 155mm stroke, and 13kg weight, it delivers deep, efficient blows. Operating at 0.63MPa with 28L/s air consumption and a 19mm hose, this Pneumatic jack hammer is ideal for demanding demolition and industrial work.
The G10 Pneumatic Air Pick Hammer is a heavy-duty hand held jack hammer designed for tough breaking work. With 43J impact energy, a long 155mm stroke, and an 11kg body, it delivers strong, deep-impact performance on concrete, masonry, and road surfaces. Running at 0.63MPa with 26L/s air consumption and a 19mm hose, this Pneumatic jack hammer focuses on power, stability, and durability for demanding jobsite applications.
The G12 Pneumatic Air Pick Hammer is a heavy-duty hand held jack hammer designed for demanding breaking work. With 45J impact energy, a long 155mm stroke, and a solid 12kg body, it delivers strong, deep impacts on concrete, masonry, and pavement. Operating at 0.63MPa with 26L/s air consumption and a 19mm hose, this Pneumatic jack hammer focuses on power, stability, and durability for serious jobsite use.
The C6 Pneumatic Air Pick Hammer is a compact and reliable hand held jack hammer powered by compressed air. With 14J impact energy, 32Hz striking frequency, and a lightweight 7kg body, it delivers stable breaking performance for concrete, masonry, mining, and maintenance work. Designed for 0.63MPa working pressure and a 16mm air hose, this Pneumatic jack hammer balances power, control, and durability for everyday jobsite use.
YT29 Pneumatic air leg rock drill from Xiamen Jack hammer Machinery is a high-efficiency pneumatic rock drill designed for shallow-hole drilling in mining, tunneling, quarrying and blasting work. Its key selling points are strong drilling performance, reduced operator effort with air-leg support, reliable pneumatic structure and easy maintenance. It is ideal for professional drilling teams and contractors needing stable and productive rock drilling equipment.
YT28 air-leg rock drill from Xiamen Jack hammer Machinery is a powerful and efficient pneumatic rock drill designed for strong impact performance in medium-hard and hard rock. Its key selling points are high drilling efficiency, reduced labor with air-leg support, durable structure and suitability for continuous mining, tunneling and blasting work. It is ideal for professional users who need reliable and cost-effective rock drilling equipment.
YT24 air-leg rock drill from Xiamen Jack hammer Machinery is a reliable pneumatic rock drill designed for stable and efficient medium-depth drilling. Its key selling points are practical drilling efficiency, reduced operator fatigue with air-leg support, compatibility with common air compressor systems and easy maintenance. It is suitable for mining crews, tunnel contractors, quarry operators and blasting teams.
YT27 air leg rock drill from Xiamen Jack hammer Machinery is a reliable pneumatic rock drill designed for efficient drilling in coal mining, tunneling, quarrying and blasting work. Its key selling points are stable power, reduced labor with air-leg support, easy maintenance and suitability for continuous field operation. It is ideal for mining crews, tunnel contractors, quarry teams and drilling professionals.
YT23D air-leg rock drill from Xiamen Jack hammer Machinery is a practical and efficient pneumatic rock drill designed for stable drilling in mining, tunneling, quarry and blasting operations. Its key selling points are high-frequency impact performance, reduced labor with air-leg support, easy maintenance and cost-effective operation under standard air pressure conditions. It is ideal for contractors and crews who need reliable medium-depth rock drilling.
7655 Pneumatic air leg rock drill from Xiamen Jack hammer Machinery is a durable and efficient pneumatic rock drill for medium-hard to hard rock drilling. Its key selling points are strong drilling performance, air-leg support for reduced labor, simple maintenance and wide application in mining, tunneling, quarrying and blasting projects. It is ideal for mining contractors, tunnel crews, quarry operators and blasting teams.
Y28 hand hold rock drill from Xiamen Jack hammer Machinery is a flexible and efficient pneumatic rock drill designed for mobile drilling jobs in medium-hard and hard rock. Its key selling points are easy starting, low air consumption, good lubrication support, simple maintenance and suitability for small compressor operations. It is ideal for mining crews, tunnel workers, quarry teams, blasting contractors and rental users.
Y26 Pneumatic air leg rock drill from Xiamen Jack hammer Machinery is a practical pneumatic rock drill for horizontal and inclined blasting holes in mining, tunneling and quarry jobs. Its key selling points are stable drilling performance, reduced operator effort, simple maintenance and reliable cost-effective operation for professional users.
Y24 hand-held rock drill from Xiamen Jack hammer Machinery is a portable pneumatic jack hammer designed for shallow hole drilling and mobile job sites. Its key selling points are flexible handling, easy operation, low equipment cost and suitability for small mining teams, quarry workers, construction crews and rental users.
Y20LY air-leg rock drill from Xiamen Jack hammer Machinery is a durable and efficient pneumatic rock drill designed for stable drilling in mining, tunneling, quarry and blasting jobs. Its key selling points are high drilling efficiency, reduced operator fatigue, easy maintenance and cost-effective performance for professional users.
Y19A air-leg rock drill from Xiamen Jack hammer Machinery is a pneumatic rock drill designed for efficient drilling in medium-hard to hard rock. Its key selling points are stable air-leg support, higher drilling efficiency, reduced operator fatigue and easy maintenance. It is ideal for mining crews, tunneling contractors, quarry users and blasting teams.
YO18 hand-held rock drill from Xiamen Jack hammer Machinery is a reliable pneumatic jack hammer designed for mining, quarry, tunneling and small construction teams. Its key selling points are easy operation, simple maintenance, stable lubrication and cost-effective performance for mobile drilling jobs.
Y12 hand-held rock drill from Xiamen Jack hammer Machinery is a pneumatic jack hammer for mining, coal extraction, tunneling and rock drilling. It features compact structure, flexible handling and reliable performance. Proper air pressure, lubrication and maintenance help ensure safe operation and longer service life.
Y8 hand-held rock drill from Xiamen Jack hammer Machinery is a pneumatic jack hammer for shallow-hole and small-diameter drilling in mining, tunneling and construction. It offers flexible handling, reliable performance and easy maintenance, with suitable lubrication and regular inspection for long service life.
Y6 hand-held rock drill from Xiamen Jack hammer Machinery is a pneumatic jack hammer designed for shallow-hole and small-diameter rock drilling. It is widely used in mining, tunneling and construction, offering flexible operation, reliable performance and compatibility with different drill rods and bits.
YT29 Pneumatic air-leg rock drill: a versatile 26.5 kg jack hammer and Pneumatic jack hammer for 34-45 mm holes to ~5 m. Compact 659x248x205 mm, 82 mm cylinder, 60 mm stroke. Runs 0.4-0.63 MPa air (water 0.3 MPa), <=60 L/s via 25 mm air/13 mm water lines; also a steady hand held jack hammer.
YT28 air-leg rock drill is a 26 kg Pneumatic jack hammer for daily production and tight corners. At 0.63 MPa it runs >=37 Hz while air use stays <=81 L/s. 661 mm long with an 80 mm cylinder and 60 mm stroke. Uses 22x108 mm steels, 25 mm air/13 mm water lines. Works on the leg or as a hand held jack hammer.
YT27 air leg rock drill is a 27 kg Pneumatic jack hammer and hand held jack hammer for tough headings. 668 mm long with an 80 mm cylinder and 60 mm stroke, it runs at 0.4-0.63 MPa via 25 mm air/13 mm water lines, uses 22x108 mm shanks, and hits >=36.7 Hz with >=75.5 J per blow for production drilling.
YT24 air-leg rock drill is a 24 kg Pneumatic jack hammer and hand held jack hammer for 34–42 mm holes. 678 mm long with a 70x70 mm cylinder/stroke, it runs at 0.4-0.63 MPa through a 19 mm air line and 13 mm water line. Uses 22/108+/-1 mm shanks, drills ~1.5-5 m with stable rotation and simple upkeep.
YT23D air-leg rock drill is a 24 kg pneumatic jack hammer for 34-42 mm holes in medium-hard rock. Runs at 0.35-0.63 MPa (best 0.45-0.55), >=28 Hz, <=38 L/s, 70x70 mm cylinder/stroke, 22x108 mm shank, 19 mm hose. Typical depth ~5 m. FYzooA lubricator (200 ml) for simple, reliable daily service.
7655 Pneumatic air leg rock drill is a 24 kg hand held jack hammer for 34–42 mm holes up to 5 m. With 76 mm cylinder, 60 mm stroke, ≥65 J impact and ≥36 Hz frequency, this Pneumatic jack hammer works at 0.63 MPa, ≤80 L/s air, ≥300 r/min, using B22×108 mm shank.
Y28 hand hold rock drill is a 26 kg powerful hand held jack hammer with 80 mm cylinder, 60 mm stroke and ≥37 Hz impact rate. This Pneumatic jack hammer works at 0.4–0.63 MPa with <81 L/s air through a 25 mm hose, drilling 28–42 mm holes with 22×108 mm shank for mining and construction.
Y26 Pneumatic air leg rock drill is a 26 kg hand held jack hammer for 34–42 mm holes up to 5 m deep. With a 65 mm cylinder, 70 mm stroke, ≥30 J impact energy and ≥23 Hz frequency, this Pneumatic jack hammer runs at 0.4 MPa with ≤47 L/s air and 0.2–0.3 MPa water for mining and tunneling.
The Y24 hand-held rock drill is a powerful Pneumatic jack hammer weighing 24 kg, designed for hard rock drilling. Operating at 0.4-0.63 MPa with ≤50 L/s air consumption, it features a 70 mm cylinder, 70 mm stroke, and 27+ Hz impact frequency. Ideal for 34-42 mm bit sizes, it offers strong performance and durability.
The Y20ly air-leg rock drill is an 18 kg Pneumatic jack hammer for tunneling and mining. Working at 0.4 MPa with 1.3 m³/min air use, 30 Hz impact and 60 mm cylinder, this hand held jack hammer drills 34–40 mm holes using 22×108 mm steels with 16/8 mm air-water lines.
The Y19A air-leg rock drill is a 19 kg Pneumatic jack hammer for tunneling and mining. Working at 0.4-0.5 MPa with 43 L/s air use, 35 Hz impact and 40 J energy, this hand held jack hammer uses 22x108 mm steels and 19/13 mm air-water lines for fast, low-dust drilling.
The YO18 hand-held rock drill is an 18 kg Pneumatic jack hammer for heavy-duty tunneling and quarry work. With a 58 mm cylinder, 45 mm stroke and 22×108 mm shank, this hand held jack hammer runs at 0.39–0.59 MPa with air/water flushing for efficient, low-dust drilling.
The Y12 hand-held rock drill is an 11 kg Pneumatic jack hammer for 20–30 mm blast and anchor holes. Working at 0.40–0.63 MPa with <9.5 L/s air use, it reaches about 280 mm/min at 0.4 MPa (20 mm bit). This powerful hand held jack hammer suits quarries, mining and construction.
The Y6 hand-held rock drill is a 6 kg Pneumatic jack hammer for 20–24 mm holes in medium-hard rock. Working at 0.40–0.63 MPa with <9.5 L/s air use, it offers about 180 mm/min penetration at 0.4 MPa. Compact, efficient and easy to carry, this hand held jack hammer suits small quarries and construction.
The Y8 hand-held rock drill is a 6.8 kg Pneumatic jack hammer for 20–24 mm blast or anchor holes. Working at 0.40–0.63 MPa with <9.5 L/s air use, it reaches about 180 mm/min at 0.4 MPa (20 mm bit). Compact and easy to carry, this hand held jack hammer suits quarries and construction.
If you already use a jack hammer to drill holes in rock, you are only one step away from splitting that rock cleanly without explosives.
Our rock splitting wedge and shims set is a traditional yet very effective tool: after drilling holes with a pneumatic rock drill, you insert the wedge set into each hole and strike the center wedge with a hammer. The rock opens along the line of holes — no blasting, no flying stones, no vibration.
This simple mechanical method has been used for centuries in quarries. Today, it is still one of the most practical ways to split granite blocks, dimension stone and oversized boulders on quarry benches and construction sites.
BDL133 3/4-inch tail pipe (conuto) air coupling adapter for air-leg rock drills and jack hammers. G3/4 male thread with hose barb. Fits YT29, YT28, YT27, 7655. Reliable brass construction.
BDL134 1-inch tail pipe (conuto) air coupling adapter for industrial jack hammer and pneumatic drill systems. G1 male thread with 1" hose barb. Maximum air flow for heavy drilling. Factory price.
BDL132 1/2-inch tail pipe (conuto) air coupling for connecting pneumatic jack hammer to air hose. Male-threaded brass nipple adapter for B47, G16, Y24 drills. Economical replacement part.
BDL114 1-inch male thread (externa) air coupling for high-flow pneumatic jack hammer and rock drill systems. G1 BSPP brass fitting. Designed for continuous mining and quarry operations. Factory direct.
BDL113 3/4-inch male thread (externa) air coupling for tunneling jack hammers and pneumatic rock drills. G3/4 brass fitting with external BSPP threads. Durable, field-proven. Factory pricing.
BDL112 1/2-inch male thread (externa) air coupling for pneumatic jack hammers and rock drills. G1/2 brass fitting with external threads. Fits B47, G16, G15, Y24. Factory price.
BDL124 1-inch female thread (interno) air coupling for high-capacity pneumatic jack hammers and rock drills. Heavy-duty G1 brass fitting. Ships from Xiamen factory, 5-day delivery.
BDL123 3/4-inch female thread (interno) air coupling for pneumatic rock drills and jack hammers. Precision G3/4 brass fitting. Suits YT29, YT28, YT27, 7655. Factory direct pricing.
BDL122 1/2-inch female thread air coupling (interno) for jack hammer and pneumatic drill. Precision brass fitting with standard threads. Compatible with Y24, Y26, B47, G16. Factory price.
SL34 3/4-inch air hose coupling (abrazadera) for smaller jack hammers and pneumatic drills. Economical brass clamp fitting for light to medium drilling work. Ships from factory in 5 days.
SL40 1-inch air hose coupling (abrazadera) for jack hammer and pneumatic rock drill. Secure brass clamp fitting for mining, tunneling, and quarry work. Factory price, 5-day delivery.
Heavy-duty 2-inch air hose coupling (abrozaderas) for jack hammer and pneumatic drilling equipment. Brass construction, fits 2" air lines. Factory direct pricing, ships in 5 days.
The patented 80 Type Crawler Road Cutting Machine is built for concrete and asphalt cutting with a 4‑cyl turbo 490KZ engine, 24V electronic drive, remote control, 50 cm max depth, and 90–120 cm single‑cut spacing, delivering stable, clean, water‑assisted cutting for road repairs.
The 57 Model Crawler Road Cutting Machine is a patented, remote-controlled machine designed for efficient cutting of concrete and asphalt. With a 490K four-cylinder engine, 30cm cutting depth, and 50-100cm cutting spacing, it offers stable performance, durability, and precision. Ideal for road maintenance, demolition, and urban infrastructure projects.
3/4 Inch Tail Pipe Air Coupling Conuto for Air Leg Rock Drill and Jack Hammer — BDL133
Xiamen Jack Hammer
Xiamen
5 days
3000pcs/month
BDL133 3/4-inch tail pipe (conuto) air coupling adapter for air-leg rock drills and jack hammers. G3/4 male thread with hose barb. Fits YT29, YT28, YT27, 7655. Reliable brass construction.
If there's one fitting that seems to cause more confusion than any other in pneumatic drilling, it's the tail pipe. Not because it's complicated — it's literally a threaded nipple with a hose barb — but because nobody can agree on what to call it.
Conuto. Tail pipe. Nipple. Hose adapter. Stem coupling. Barb fitting. Depending on what country you're in and who trained you, you'll use a different word for the same thing.
The BDL133 is all of those things. It's a 3/4-inch tail pipe coupling that connects your air-leg rock drill's threaded air inlet to your air hose. One end has male G3/4 threads; the other end has a hose barb that your 3/4-inch air hose pushes onto. Simple, proven, essential.
The Fitting Your Drill Manufacturer Assumes You Already Have
Here's something interesting: most rock drill manuals don't list the tail pipe coupling in their spare parts catalog. Not because it doesn't matter, but because it's considered part of the "hose connection" — a generic component that the operator is expected to source separately.
The result? Operators buy the drill, get it to site, unbox it, and realize they don't have the fitting to connect their air hose. The drill's air inlet is a 3/4-inch female thread. Their hose has no matching connector. They need a BDL133 (or equivalent), and they need it now.
We've shipped BDL133s to customers who ordered them as an emergency — overnight express, urgent, please-hurry — because someone on site opened a crate of brand-new drills and found that the coupling situation hadn't been thought through. A $0.90 part, holding up a $15,000 drill.
Don't be that project.
Why 3/4 Inch Is the Sweet Spot for Air-Leg Drills
The 3/4-inch tail pipe matches the air inlet standard for the most widely used air-leg rock drills in the world: the YT29, YT28, YT27, and 7655. These drills consume 2.5–4.5 m³/min of compressed air at 0.4–0.63 MPa, and the 3/4-inch bore provides adequate flow without creating excessive restriction at the inlet.
The BDL133's hose barb is sized to accept standard 3/4-inch (19mm ID) air hose, secured with a clamp coupling (SL34) or standard worm-drive hose clamp. The G3/4 male thread matches the drill's inlet port and seals with PTFE tape.
Reliability Under Vibration
Air-leg rock drills operate at 30–37 Hz impact frequency. That vibration travels through the drill body, into the tail pipe, and down into the hose connection. Over weeks and months of operation, this vibration causes:
Thread seal degradation (micro-movement between mating threads)
Hose barb fatigue (micro-cracks at the base of the barb ridges)
Hose clamp loosening (the constant shaking slowly rotates the clamp on the hose)
The BDL133's brass construction absorbs vibration better than steel alternatives, which are more prone to fatigue cracking. Brass has a natural damping quality that makes it the preferred material for fittings in high-vibration pneumatic applications.
To maximize service life:
Check the barb-to-hose connection weekly for any signs of hose movement or clamp loosening
Inspect the thread seal monthly — if you hear hissing, reseal or replace
Replace the tail pipe at the first sign of cracking at the barb base
Don't use the tail pipe as a lifting handle or leverage point — it's not designed for bending loads
Technical Specifications
Specification
Detail
Product Code
BDL133
Type
Conuto (tail pipe / nipple adapter)
Thread Size
3/4 inch (G3/4 / BSPP), male
Hose Barb Size
3/4 inch
Working Pressure
0.4–0.63 MPa
Material
Brass
Application
Thread-to-hose adapter for air-leg rock drills
Compatible Drills
YT29, YT28, YT27, 7655, Y20LY
Unit Price (EXW)
~$0.90 USD
A Practical Ordering Guide
If you're equipping a new drilling project, here's what a typical connection kit for one air-leg rock drill (like the YT29) looks like:
Component
Code
Qty per Drill
Purpose
Tail pipe coupling
BDL133
1
Connects drill inlet to hose
Hose clamp (abrazadera)
SL34
1
Secures hose to tail pipe barb
Female thread coupling
BDL123
1 (spare)
Backup for drill inlet
Male thread coupling
BDL113
1 (spare)
Backup for manifold connection
PTFE tape
Standard
1 roll
Thread sealing
This kit covers the full connection from drill to air supply, plus critical spares, for under $5 per drill. We recommend ordering at least 2× the kit quantity so you have one set on the drill and one set in the parts box.
Frequently Asked Questions
Q: What's the difference between BDL132 (1/2") and BDL133 (3/4")?
Size. The BDL132 is for equipment with G1/2 air inlets (smaller drills and breakers). The BDL133 is for G3/4 inlets (air-leg rock drills like YT29, YT28, etc.). Using the wrong size won't work — the threads won't match.
Q: My tail pipe is leaking at the thread even with Teflon tape. What's wrong?
Several possibilities: (1) the threads on either the tail pipe or the drill inlet are damaged/worn, (2) not enough Teflon tape (use 3 wraps minimum), (3) the tape was wrapped in the wrong direction (should be clockwise looking at the thread end), or (4) debris on the threads is preventing a clean seal. Clean everything, reapply tape, and try again. If it still leaks, inspect the threads for damage.
Q: How tight should the tail pipe be?
Hand-tight plus 1/4 to 1/2 turn with a wrench. Over-tightening can crack the brass or damage the drill's inlet threads. The seal comes from the Teflon tape filling the thread gaps, not from crushing force.
Q: Do I need a hose clamp on the barb end?
Yes. The barb provides grip, but compressed air at 0.5+ MPa will push the hose off the barb without a clamp. Use the SL34 abrazadera or a standard worm-drive clamp positioned behind the last barb ridge.
BDL133 3/4-inch tail pipe (conuto) air coupling adapter for air-leg rock drills and jack hammers. G3/4 male thread with hose barb. Fits YT29, YT28, YT27, 7655. Reliable brass construction.
Heavy-duty 2-inch air hose coupling (abrozaderas) for jack hammer and pneumatic drilling equipment. Brass construction, fits 2" air lines. Factory direct pricing, ships in 5 days.
SL40 1-inch air hose coupling (abrazadera) for jack hammer and pneumatic rock drill. Secure brass clamp fitting for mining, tunneling, and quarry work. Factory price, 5-day delivery.
SL34 3/4-inch air hose coupling (abrazadera) for smaller jack hammers and pneumatic drills. Economical brass clamp fitting for light to medium drilling work. Ships from factory in 5 days.
BDL122 1/2-inch female thread air coupling (interno) for jack hammer and pneumatic drill. Precision brass fitting with standard threads. Compatible with Y24, Y26, B47, G16. Factory price.
BDL123 3/4-inch female thread (interno) air coupling for pneumatic rock drills and jack hammers. Precision G3/4 brass fitting. Suits YT29, YT28, YT27, 7655. Factory direct pricing.
BDL124 1-inch female thread (interno) air coupling for high-capacity pneumatic jack hammers and rock drills. Heavy-duty G1 brass fitting. Ships from Xiamen factory, 5-day delivery.
BDL112 1/2-inch male thread (externa) air coupling for pneumatic jack hammers and rock drills. G1/2 brass fitting with external threads. Fits B47, G16, G15, Y24. Factory price.
BDL113 3/4-inch male thread (externa) air coupling for tunneling jack hammers and pneumatic rock drills. G3/4 brass fitting with external BSPP threads. Durable, field-proven. Factory pricing.
BDL114 1-inch male thread (externa) air coupling for high-flow pneumatic jack hammer and rock drill systems. G1 BSPP brass fitting. Designed for continuous mining and quarry operations. Factory direct.
BDL132 1/2-inch tail pipe (conuto) air coupling for connecting pneumatic jack hammer to air hose. Male-threaded brass nipple adapter for B47, G16, Y24 drills. Economical replacement part.
