Festo EV-20/120-5, Clamping Module

The Festo EV-20/120-5 is a mechanical clamping module from the EV series, designed to hold moving machine axes firmly in place. It is commonly used in linear motion systems where loads must stay fixed when air pressure is lost or when the machine is stopped. Instead of relying on continuous pneumatic pressure, this unit mechanically locks the axis, improving safety and stability. This type of module is typically installed on guide rails or linear axes in automated machinery that requires controlled holding.

Primary Functions of the Festo EV Series Clamping Module

The EV-20/120-5 clamps directly onto the guide or rail surface. When activated, it generates a strong holding force that prevents movement along the axis. Once released, the axis can move freely again without drag or resistance.

• Mechanical clamping, not friction braking.
• Holds position without a continuous air supply.
• Designed for linear guide systems.
• Fast clamping and release response.
• Suitable for machines that frequently stop.

Build Quality and Design

Festo designs this module for industrial use, meaning it is built to handle repeated cycles without loss of performance. The housing and internal components are made to withstand vibration, load changes, and extended operating hours. The EV-20/120-5 is compact, which helps when space is limited inside machine frames. Its design allows clean integration without significant mechanical modification.

Broad Range Application

This clamping module is often found in:

• Automated assembly machines
• Pick-and-place systems
• Vertical axes that must not drop under load
• Handling and positioning equipment
• CNC and special-purpose machinery

For more information please check the datasheets.