Hook ends, hydraulic
max. operating pressure 400 bar.
Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at piston rod. Piston rod with internal thread. Oil supply via threaded port.
For tensioning primarily cylindrical parts - on both the machine table and clamping plates. The chain length and clamping force are preset on the counter catch using knurled nuts. The hook end is then placed under hydraulic pressure to tension the chain. The control marking on the piston rod marks the max. stroke and shows how far the hydraulic cylinder has been run out.
Even pressure distribution reduces workpiece deformation.