Air Lift Bags
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Specialists in the supply of proof load test bags for:

  • Marine and shipping construction
  • Oil and gas industry
  • Defence industries
  • Crane, winch and davit manufacturers
  • Lifeboat construction
A growing number of partners work with Structure-flex to provide a global network of approved companies offering load testing services.

With over 30 years of manufacturing experience in the design, production, and development of a wide range of testing equipment, Structure-flex has an unrivalled reputation for quality and reliability and can provide products for various situations.


"We are proud to have Structure-flex producing our high standard products for more than 20 Years now. Their material and know how has proven to be reliable from the beginning."
Eddy Schroemges, Director


In addition to the products below, please contact us for a chat about your individual requirements.

Proof Load Testing
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Proof Test Bags from 1 to 100 tonnes and low head test bags for use in limited height situations from 1 to 15 tonnes.

Lifeboat Testing
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Easy to install and use lifeboat bags to provide a simple accurate way to proof load test lifeboats in situ.

Gangway Testing
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Bespoke bags for gangway and structure testing produced to sizes to suit any situation.

Open Top Tank
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Open top tank available in sizes from 1,000 to 70,000 litres for gangway, platform, and structure testing.

Moon Pool Test Bag
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Bespoke test bags for moon pools in a non-standard cylindrical design that incorporate several circumferential strengthening bands.


We're Proud To Supply