Bags filled with water have long been used as test weights, with Water Weights leading the way. Bags have the benefit of being easy to transport when empty. Now a French engineering company is also offering test lifting bags.

Pronal specialises in flexible elastomer products for industrial and technical use. Its latest offering is test lifting bags made from high resistance material coated with welded plastomer, produced to FEM standards.

The flexible test lifting bags are available from 2t capacity to 35t.

By hanging several from a lifting beam test loads of up to 1,000t can be configured.