Extending Clamps with Mechanical Lock

Extending Clamp with Mechanical Lock - HILMA WZ 2.2480

• Max. clamping force: 200 kN
• Adm. retaining force: 250 kN
• Flow rate: 1.6 .. 2.5 l/min
• Max. operating temperature: 70°C

Advantages:

• Compact housing and high force density
• High operational safety by position monitoring and automatic motion sequence
• Self-locking by mechanical lock
• Low operating pressure 100 bar
• Easy installation

Application:

• Preferably on press beds
• For clamping and locking dies and moving bolsters in presses

Description:

Clamping

First, the cylinder piston pushes the clamping lever into the clamping position to the die clamping edge. Released by the hydraulic sequence control, pressure is then applied to the clamping and locking mechanism. Once the clamping force is built up, the clamping element is self-locking. This mechanical lock prevents unintentional unclamping of the die even if there is a hydraulic pressure loss.

Unclamping

For unclamping, the clamping and locking mechanism is hydraulically unlocked. Released by the hydraulic sequence control, pressure is applied to the cylinder piston which pushes the clamping lever into the unclamping position. Unclamping and clamping positions are monitored by inductive proximity switches.

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