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ROEMHELD provides a full selection of state-of-the-art, air and hydraulically powered components and accessories. More than 80 different types of power workholding devices are available, allowing you to speed up and streamline many manual workholding operations. Compact, yet able to operate comfortably at 7,500 psi, power workholding products include flexible clamping systems, swing clamps, push clamps and cylinders, work supports, coupling systems, collet vises, and many other workholding items.

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Hinge Clamp w/ Flat Clamping Lever  

Hinge Clamps have a sturdy linkage configuration that moves the clamping arm forward as it pivots into clamping position. This specially designed linkage allows the clamp to exert nearly perfectly vertical clamping force. The clamping arm retracts fully for clear loading from above. Ideal for clamping in narrow recesses. Durable, economical clamp with an easy-to-clean mechanism and standard metallic wiper. 

Purchase on Carr Lane Mfg. Co.


Threaded-Body Work Supports

The support plunger is hydraulically extended and retracted by means of a small single or double-acting cylinder. Contact to the work-piece is made by spring force. The pressure spring can be easily exchanged. The support plunger is additionally guided in the area of the shaft diameter and can therefore absorb side loads up to 300 N.


Purchase on Carr Lane Mfg. Co.


Swing Clamps with Sturdy Swing Mechanism 70 bar



The hydraulic swing clamp with sturdy swing mechanism can be directly connected to the low-pressure hydraulics of the machine tool. Clamping force of 135-2990 lbs.


Purchase on Carr Lane Mfg. Co.



Mini Compact Clamps 

Mini compact clamps are designed for application in hydraulic clamping fixtures where oil supply is effected through drilled channels in the fixture body. Clamping force of 20-290 lbf.


Purchase on Carr Lane Mfg. Co.


Threaded-Body Work Supports 70 bar

Hydraulic work supports are used to provide a self-adjusting rest for the workpiece during the machining operations. They compensate the workpiece surface irregularities, also vibration and deflection under machining loads. Support force up to 900 lbs.

Purchase on Carr Lane Mfg. Co.


Hinge Clamps with Throttle Valve 70 bar

Hydraulic Hinge Clamps are designed for the direct connection to the low pressure hydraulics of machine tools. Special kinematics allow clamping without side loads of workpieces which are very sensitive against deformation. Clamping force of 515-3865 lbs.


Purchase on Carr Lane Mfg. Co.



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What is Power Workholding? 

Hydraulic and pneumatic clamping have long-been a part of manufacturing. Only with the recent introduction of hydraulic systems specifically designed for workholding applications has power clamping emerged as an everyday workholding alternative. This is due, in large part, to the increased demand for faster production and more automation on newer machine tools. But faster production is only one reason for the appeal of power workholding. Today’s power-workholding systems offer a wide range of options and capabilities. To make full use of the systems, one must first understand the basic principles of power workholding as well as the range of available components. 

Power workholding solutions from ROEMHELD offer many advantages over that of manual Workholders. These devices generally provide manufacturers more control, as jigs and fixtures automatically adjust to workpiece irregularities. Additionally, power workholding simplifies the manufacturing process by adding uniformity and efficient operations while reducing production time and operator fatigue.

Why use Power Workholding?


Power-operated elements provide more control and a wide range of operations within a workholding system. Once adjusted, each product consistently clamps or holds. Powered work supports automatically adjust to minor workpiece irregularities. In addition, power workholding systems can operate multiple clamps and other devices in sequence to accomplish a multistep fixturing task.


Power Workholding Components greatly reduce loading times and are particularly effective for high-volume runs. Although initial costs are higher than with mechanical workholding, self-contained hydraulic workholding products are more efficient because fewer clamps (and accompanying personnel to operate them) are required. By replacing repetitive manual clamping, power workholders reduce operator fatigue. They allow remote control of inaccessible fixturing. Most systems also feature back-up controls for added safety in case of power failure.


Since power workholders are controlled by a power source, the strength and fatigue of the operator have no effect on clamping force. Once set, force remains constant. And when more or less force is required for the next setup, the same clamps or positioners can beadjusted for those specific conditions.


When operators have less physical labor in clamping and unclamping, they can run more machines and produce more. More workpieces can be loaded on fixtures for a given production cycle, which lengthens individual steps and requires less attention from the operator. Many types of power workholding can be performed by less-skilled workers.


Versatile power workholding does not require design specialists. The same tool designer who designs the workholder can also design the clamping system. With their small size, Roemheld components are easy to locate. Standard fittings connect easily and ensure positive sealing.


Roemheld power components are designed to fit easily on fixtures. Since they function well at fluid pressures up to 7500 psi, their smaller design can still provide high clamping forces. Small power clamps often allow loading more workpieces on a fixture because the clamps can be positioned closer together. A result is increased productivity through more parts per cycle.

To learn more about how Power Workholding will help you create a more efficient and competitive production environment, call our Engineering Department from the United States and Canada at 636-386-8022.