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Knowledge Center

Guides & Technical Resources

Practical guides on choosing, calculating and using rescue lifting air bags and leak sealing equipment — written for buyers and rescue teams.

How to choose the right lifting air bag
Selection Guide

How to Choose the Right Lifting Air Bag?

A 7-step checklist: maximum lifting weight, lifting height, working pressure, application, certification, accessories and safety margin.

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Working pressure of rescue air bags
Technical

What Working Pressure Do Rescue Air Bags Need?

Why 0.8 MPa is the standard rated working pressure for most fire-rescue lifting air bags — and why you must never exceed it.

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Calculate lifting capacity of pneumatic airbag
Engineering

How to Calculate Lifting Capacity of a Pneumatic Airbag?

The core formula, unit conversion and the practical rules that keep loads safe on site.

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Square vs rectangular lifting air bags
Selection Guide

Difference Between Square & Rectangular Lifting Air Bags

Performance, application scenarios, effective tonnage, space requirements — and how to choose between the two types.

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Lifting airbags on curved surfaces
Technical

Can Lifting Airbags Be Used on Curved Surfaces?

Only with flat rigid padding — and never by increasing pressure. The safe way to lift on curved surfaces.

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Export markets of Hangyi lifting airbags
Company

Which Countries Do You Normally Sell Your Products To?

Southeast Asia, Russia, Africa, Europe, America, South America and more — factory-direct with full export documents.

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Lifting bag alternatives to Vetter and Paratech
Buyer's Guide

Lifting Bag Alternatives to Vetter, Paratech & Holmatro

A factory-direct option for fire & rescue procurement, and how to evaluate any alternative supplier before you buy.

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How to choose rescue lifting cushion
Selection Guide

How to Choose Rescue Lifting Cushions

Key points on capacity, pressure, dimensions and supporting equipment when sourcing rescue lifting cushions.

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