Enerpac WFM71 Hydraulic Workholding Cylinder Plunger

Product Description

The ENERPAC WFM71 is a hydraulic workholding cylinder plunger designed for use in precision clamping and fixturing applications. It delivers a 2-pound contact advance spring force, which provides consistent, repeatable plunger engagement during the hydraulic cycle. This type of workholding component is typically installed into modular or custom fixturing setups on machining centers, transfer lines, or assembly tooling where controlled clamping force and part positioning are critical. Installation and integration are typically handled by tooling engineers or millwrights familiar with hydraulic workholding systems.

Hydraulic workholding cylinders like the WFM71 are used in industrial manufacturing environments where parts must be held securely during machining, welding, or inspection operations. The plunger advance spring force ensures the plunger maintains contact with the workpiece before hydraulic pressure is applied, reducing part movement during fixturing. This makes it suitable for both high-volume production lines and precision low-volume machining cells where repeatable part location is a priority.

Key Features

• 2-pound plunger contact advance spring force for consistent pre-hydraulic workpiece engagement
• Designed for integration into hydraulic workholding and fixturing systems
• Compact form factor suited for modular fixture plates and custom tooling assemblies
• Weighs 0.5 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or service component for ENERPAC hydraulic workholding cylinder assemblies requiring a plunger with 2-pound contact advance spring force.

Installation Notes

Installation should be performed by a qualified tooling technician or millwright familiar with hydraulic workholding systems. Depressurize and lock out the hydraulic circuit fully before removing or installing any workholding cylinder component. Verify thread engagement, seating, and plunger travel before returning the fixture to service. Consult the ENERPAC product documentation for assembly torque and hydraulic pressure specifications applicable to the fixture design.