Enerpac Enhances Collet-Lok®Family of Hydraulic Workholding Tools
New Performance Features and Fast Availability

Enerpac has announced its upgraded Collet-Lok family of hydraulic workholding with “Depressurized Holding Technology™.” Designed to protect against unintentional loss of clamping, Collet-Lok requires no hydraulics to maintain clamping force. Compared to traditional workholding, which requires continuous hydraulic pressure, Enerpac Collet-Lok uses an internal mechanical locking system to maintain the clamping force—automatically, without hydraulic pressure, indefinitely.
To satisfy diverse workholding applications, Enerpac has improved its Collet-Lok product family through the following:
“Loss of clamping force during machining can be costly—from scraped parts to machine damage and downtime. Anyone involved in the industry knows this can occur,” said Douglas Lacina, Global Marketing & Engineering Leader for Enerpac. “With the automation of hydraulic actuation, combined with the security of an internal locking mechanism, Collet-Lok ensures continuous clamping and support, even if a hydraulic line is accidentally cut during machining. Plus, with an upgraded design and fast availability, Collet-Lok is ideal for our customers’ diverse machining requirements.”
The Collet-Lok family of hydraulic workholding products includes swing clamps, work supports and push cylinders. Available in multiple sizes and mounting methods, Collet-Lok provides all the clamping products needed for typical fixture applications.