SATEC™ SERIES IN-HEAD GRIPS FOR CABLE

Designed as an integral part of the testing platform, cable wedge grip jaws fit directly into the crosshead pocket of the frame. Cable grip jaws are only available for load frames with a capacity of 600 kN (135,000 lb) or more. These jaws are made from rugged heat-treated steel, and are ideal for testing stranded cable specimens. The wedge design causes the gripping force to increase as tensile force is applied. This ensures a secure gripping action with minimal slippage throughout the range of the test.

Cable grip jaws consist of a wedge-shaped body and an insert. The insert is sized for the diameter of the cable being tested.

Principle of Operation

A pair of wedge grip jaws are used in each crosshead pocket to grip the upper and lower end of the specimen. When using cable grip jaws, jaw actuation must be accomplished hydraulically, regardless of actuation method (i.e. hydraulically operated pinions or hydraulic lever arm).

Once the specimen has been inserted between the jaws, the operator applies an initial clamping force to the specimen with the pinion or lever actuators (depending on frame options). When the test is begun, the wedge design of the grip jaws and pocket translates some of the tensile force applied by the load frame into a gripping force on the specimen. As the tensile force increases so does the gripping force, reducing instances of specimen slippage.

Application Range

• Jaws are rated to full machine capacity — up to 3,000 kN (600,000 lbf, 300,000 kgf)

• Designed for testing specimens in compliance with ASTM E8 standards

• Wedge design causes gripping force to increase as more tensile force is applied