KHU6 Hydraulic Unit uses an operating pressure of 3200 psi.

Press Release Summary:

KHU6 Hydraulic Unit is offered as a retrofit to vises such as HDH690, HDH691 and 3600H, 3610H, 3630H, XL6H and XL6HR models. Delivering a stroke of 0.25 in. and 7200 lb of clamping force, unit’s double acting capability uses hydraulics to clamp and unclamp whereas single acting capability uses hydraulic for clamping and spring return for unclamping.

Original Press Release:

Kurt Workholding Introduces Hydraulic Unit with Both Single and Double Acting Actuation.

Kurt’s new KHU6 Hydraulic unit comes ready with both single and double acting capabilities providing a convenient option to the users preferred clamping method. Single acting method uses hydraulic clamping and spring return for unclamping. Double acting capability uses both hydraulics to clamp and unclamp for faster, more precise setup.

Switching between single and double acting only requires switching out the brass breather fitting with the supplied hydraulic fitting. The KHU6 is available as a retrofit for existing vises and will come standard on all Kurt 6 inch hydraulic vises for the HDH690, HDH691 and 3600H, 3610H, 3630H, XL6H and XL6HR models.

The KHU6 hydraulic unit uses 3200 PSI operating pressure which provides a .25” stroke and 7200 pounds of clamping force. Clamping consistency and improved part quality are benefits of hydraulic vise actuation. Clamping speed is also significantly faster than manually closing and opening vise jaws and can save 100’s of hours over the course of a year for an easy pay-back.

The KHU6 hydraulic unit is a direct replacement for 36BHU hydraulic which has been removed as replacement and as originally offered in many Kurt six inch vises.

For more information contact Steve Kane, call in USA and Canada, 1-877-226-7823. Outside USA and Canada, call 1-763-574-8309. Email:

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