It is used for checking tensile strength of the central heart of lift cables.A sample of the completed cable, 1 m long, shall be weighted. After removal of all covering and cores over a distance of about 0.20 m at both ends of the sample, the central heart including the strain-bearing centre shall be subjected to a tensile force, corresponding to the mass of 300 m of cable. The force shall be applied for 1 min. Parameters(mm): Maximum test force 2000N Test force display range 0~500kg Grading test force No grading of the whole process, the entire resolution unchanged Test force measurement accuracy Is superior to ±1% of the display value Displacement resolution 0.01mm Accuracy of displacement measurement Is superior to ±1% of the display value Moving speed range of cross beam 25mm/min~500mm/min Stepless speed regulation, can set speed arbitrarily The control precision of the displacement speed Is superior to ±1% of the display value Tensile space 0~1000mm Dimension 500mm×500mm×1600mm, weight:100kg Power supply 220V?50Hz?1000W