
Square Lifting Air Bag
Thin flat bags that enter 28 mm gaps and lift collapsed structures, vehicles and machinery. Full spec series 150×150 to 960×960 mm.
View Details>
Skip to contentRescue lifting air bags, leak sealing equipment and the complete pneumatic accessory chain — engineered in-house since 1985, OEM/ODM welcome.
Ultra-thin pneumatic bags that slide into gaps and lift as they inflate — 1.2 t to 180 t, in square, spherical and custom shapes.

Thin flat bags that enter 28 mm gaps and lift collapsed structures, vehicles and machinery. Full spec series 150×150 to 960×960 mm.
View Details
Ball-shaped chambers that hug curved and irregular loads. 32 to 180 t with a 30–70 cm single lift; stackable for extra height.
View Details
Rectangular bags for long, narrow gaps and spherical bags for curved loads — built to your size, pressure and brand.
View DetailsRectangular bags for long, narrow gaps and spherical bags for curved loads — built to your size, pressure and brand. Here are actual production photos.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.

Built to your size, pressure and brand — OEM / ODM welcome.
Rapid, chemical-resistant emergency sealing for pipes, tanks and containers — five specialised solutions for every leak scenario.

Inserted into the pipe and inflated from inside — seals drains and pipelines against hazardous liquid leaks.
View Details
Flat leak-sealing air bag secured over pipe ruptures larger than 500 mm — ideal for confined spaces.
View Details
Strapped sealing bag for ruptured pipes from 150 to 500 mm — fast, flat and easy to use.
View Details
Stainless steel clamp for oil, water and natural gas pipelines — reusable, wide compatibility, safe in flammable atmospheres.
View Details
Vacuum seal for oil tankers, liquid tank trucks, large containers and oil storage tanks — controlled hazardous-liquid drainage, no straps.
View DetailsThe full control and supply chain for your air system — pumps, cylinders, controllers, hoses, reducers, valves and storage cases.

Compressor unit for fast, high-pressure inflation.

Lightweight mobile compressed-air source.

Independent control of two or three bag lines.

Battery-free manual inflation for sealing bags.

High-pressure hoses in various lengths.

Steps cylinder pressure down to working pressure.

Positive lock-off valve for pressure holding.

Y-splitters, bottle connectors and transport cases.
Every model in the Hangyi lifting air bag range — 42 square models across three pressure series, plus 4 spherical models. All dimensions in millimetres.
High-strength fibre · safety factor 5:1 · 28 mm gap entry · full model range shown below

150×150×25 · Lift height 7.5 cm · 0.7 kg

250×250×25 · Lift height 12.5 cm · 1.8 kg

300×300×25 · Lift height 16.5 cm · 2.55 kg

350×350×25 · Lift height 18.5 cm · 3.35 kg

370×370×25 · Lift height 20.5 cm · 3.7 kg

390×390×25 · Lift height 22 cm · 4.1 kg

420×420×25 · Lift height 23 cm · 4.9 kg

460×460×25 · Lift height 25.5 cm · 5.6 kg

500×500×25 · Lift height 27.7 cm · 6.65 kg

560×560×25 · Lift height 30.5 cm · 8.8 kg

650×650×25 · Lift height 37 cm · 11.5 kg

750×750×25 · Lift height 42 cm · 15.6 kg

860×860×25 · Lift height 50.5 cm · 19.8 kg

960×960×25 · Lift height 55 cm · 25 kg
Complete 0.8 MPa model specifications
| Model | Material | Working Pressure (MPa) | Overall Size (mm) | Max Lifting (t) | Max Height (cm) | Weight (kg) | Safety Factor |
|---|---|---|---|---|---|---|---|
| JQQD-1.2/0.8 | High-strength fibre | 0.8 | 150×150×25 | 1.2 | 7.5 | 0.7 | 5:1 |
| JQQD-3.9/0.8 | High-strength fibre | 0.8 | 250×250×25 | 3.9 | 12.5 | 1.8 | 5:1 |
| JQQD-6.1/0.8 | High-strength fibre | 0.8 | 300×300×25 | 6.1 | 16.5 | 2.55 | 5:1 |
| JQQD-8.2/0.8 | High-strength fibre | 0.8 | 350×350×25 | 8.2 | 18.5 | 3.35 | 5:1 |
| JQQD-10.1/0.8 | High-strength fibre | 0.8 | 370×370×25 | 10.1 | 20.5 | 3.7 | 5:1 |
| JQQD-12.2/0.8 | High-strength fibre | 0.8 | 390×390×25 | 12.2 | 22 | 4.1 | 5:1 |
| JQQD-14.2/0.8 | High-strength fibre | 0.8 | 420×420×25 | 14.2 | 23 | 4.9 | 5:1 |
| JQQD-16/0.8 | High-strength fibre | 0.8 | 460×460×25 | 16 | 25.5 | 5.6 | 5:1 |
| JQQD-18.4/0.8 | High-strength fibre | 0.8 | 500×500×25 | 18.4 | 27.7 | 6.65 | 5:1 |
| JQQD-22.5/0.8 | High-strength fibre | 0.8 | 560×560×25 | 22.5 | 30.5 | 8.8 | 5:1 |
| JQQD-31.3/0.8 | High-strength fibre | 0.8 | 650×650×25 | 31.3 | 37 | 11.5 | 5:1 |
| JQQD-40.3/0.8 | High-strength fibre | 0.8 | 750×750×25 | 40.3 | 42 | 15.6 | 5:1 |
| JQQD-54.1/0.8 | High-strength fibre | 0.8 | 860×860×25 | 54.1 | 50.5 | 19.8 | 5:1 |
| JQQD-68.2/0.8 | High-strength fibre | 0.8 | 960×960×25 | 68.2 | 55 | 25 | 5:1 |
High-strength fibre · safety factor 4:1 · 28 mm gap entry
| Model | Material | Working Pressure (MPa) | Overall Size (mm) | Max Lifting (t) | Max Height (cm) | Weight (kg) | Safety Factor |
|---|---|---|---|---|---|---|---|
| JQQD-1.4/1.0 | High-strength fibre | 1 | 150×150×25 | 1.4 | 7.5 | 0.7 | 4:1 |
| JQQD-5/1.0 | High-strength fibre | 1 | 250×250×25 | 5 | 12.5 | 1.8 | 4:1 |
| JQQD-7.3/1.0 | High-strength fibre | 1 | 300×300×25 | 7.3 | 16.5 | 2.55 | 4:1 |
| JQQD-10.2/1.0 | High-strength fibre | 1 | 350×350×25 | 10.2 | 18.5 | 3.35 | 4:1 |
| JQQD-12/1.0 | High-strength fibre | 1 | 370×370×25 | 12 | 20.5 | 3.7 | 4:1 |
| JQQD-13/1.0 | High-strength fibre | 1 | 390×390×25 | 13 | 22 | 4.1 | 4:1 |
| JQQD-15.2/1.0 | High-strength fibre | 1 | 420×420×25 | 15.2 | 23 | 4.9 | 4:1 |
| JQQD-18.5/1.0 | High-strength fibre | 1 | 460×460×25 | 18.5 | 25.5 | 5.6 | 4:1 |
| JQQD-22.1/1.0 | High-strength fibre | 1 | 500×500×25 | 22.1 | 27.7 | 6.65 | 4:1 |
| JQQD-28.1/1.0 | High-strength fibre | 1 | 560×560×25 | 28.1 | 30.5 | 8.8 | 4:1 |
| JQQD-38/1.0 | High-strength fibre | 1 | 650×650×25 | 38 | 37 | 11.5 | 4:1 |
| JQQD-51/1.0 | High-strength fibre | 1 | 750×750×25 | 51 | 42 | 15.6 | 4:1 |
| JQQD-68/1.0 | High-strength fibre | 1 | 860×860×25 | 68 | 50.5 | 19.8 | 4:1 |
| JQQD-86/1.0 | High-strength fibre | 1 | 960×960×25 | 86 | 55 | 25 | 4:1 |
Kevlar · safety factor 4:1 · 28 mm gap entry
| Model | Material | Working Pressure (MPa) | Overall Size (mm) | Max Lifting (t) | Max Height (cm) | Weight (kg) | Safety Factor |
|---|---|---|---|---|---|---|---|
| JQQD-1.6/1.3 | Kevlar | 1.3 | 150×150×25 | 1.6 | 7.5 | 0.7 | 4:1 |
| JQQD-6.3/1.3 | Kevlar | 1.3 | 250×250×25 | 6.3 | 12.5 | 1.8 | 4:1 |
| JQQD-9.5/1.3 | Kevlar | 1.3 | 300×300×25 | 9.5 | 16.5 | 2.55 | 4:1 |
| JQQD-13.3/1.3 | Kevlar | 1.3 | 350×350×25 | 13.3 | 18.5 | 3.35 | 4:1 |
| JQQD-15.1/1.3 | Kevlar | 1.3 | 370×370×25 | 15.1 | 20.5 | 3.7 | 4:1 |
| JQQD-16.8/1.3 | Kevlar | 1.3 | 390×390×25 | 16.8 | 22 | 4.1 | 4:1 |
| JQQD-19.8/1.3 | Kevlar | 1.3 | 420×420×25 | 19.8 | 23 | 4.9 | 4:1 |
| JQQD-24.2/1.3 | Kevlar | 1.3 | 460×460×25 | 24.2 | 25.5 | 5.6 | 4:1 |
| JQQD-28.7/1.3 | Kevlar | 1.3 | 500×500×25 | 28.7 | 27.7 | 6.65 | 4:1 |
| JQQD-36.5/1.3 | Kevlar | 1.3 | 560×560×25 | 36.5 | 30.5 | 8.8 | 4:1 |
| JQQD-48.4/1.3 | Kevlar | 1.3 | 650×650×25 | 48.4 | 37 | 11.5 | 4:1 |
| JQQD-66/1.3 | Kevlar | 1.3 | 750×750×25 | 66 | 42 | 15.6 | 4:1 |
| JQQD-87.4/1.3 | Kevlar | 1.3 | 860×860×25 | 87.4 | 50.5 | 19.8 | 4:1 |
| JQQD-110.2/1.3 | Kevlar | 1.3 | 960×960×25 | 110.2 | 55 | 25 | 4:1 |
Kevlar · safety factor 4:1 · stackable for extra lift height
📷 21 PhotosØ560 mm · Lift height 30 cm · 13 kg
📷 21 PhotosØ880 mm · Lift height 45 cm · 26 kg
📷 21 PhotosØ1090 mm · Lift height 52 cm · 39 kg
📷 21 PhotosØ1350 mm · Lift height 70 cm · 55 kg
| Model | Material | Working Pressure (MPa) | Diameter (mm) | Thickness (cm) | Max Lifting (t) | Max Height (cm) | Weight (kg) | Structure Height (cm) | Safety Factor |
|---|---|---|---|---|---|---|---|---|---|
| HY-QQD32/1.3 | Kevlar | 1.3 | ⌀560 | 3 | 32 | 30 | 13 | 7.5 | 4:1 |
| HY-QQD75.5/1.3 | Kevlar | 1.3 | ⌀880 | 3 | 75.5 | 45 | 26 | 7.5 | 4:1 |
| HY-QQD110/1.3 | Kevlar | 1.3 | ⌀1090 | 3 | 110 | 52 | 39 | 7.5 | 4:1 |
| HY-QQD181.1/1.3 | Kevlar | 1.3 | ⌀1350 | 3 | 181.1 | 70 | 55 | 7.5 | 4:1 |
Send your scenario and target load — we'll recommend the right model within 24 hours.