Every day we encounter countless straps, belts, ropes and cordage, almost without noticing them. They are subject to constant loading and must fulfill certain quality characteristics to be able to perform their safety functions reliably (for example, safety belts, climbing ropes, and conveyor belts). Real-world conditions require complex test arrangements, special specimen grips, and reliable results— requirements that are fully met by ZwickRoell’s product portfolio.

Safety belt manufacturers and original equipment manufacturers use ZwickRoell testing systems to determine the strength of the safety belts they produce (with and without buckle). The tensile test requires special specimen grips and impact-resistant safety housing.

In a different test, the actuation force of the safely belt (unloaded and with tensile load) is determined. In this test, the specimen is rolled in the roller grip and is held in place by itself. Since a conventional clamping method is not used, this system is also recommended for clamping-sensitive specimen. Via the rolling of the rollers the specimen material is clamped independently due to the frictional contact.