Hydraulic Clamping Fundamentals

Work holding cylinders are not intended for applications where punching, bending or forming are performed. HYDRAULIC FLUID / COOLANT COMPATIBILITY Cylinders are furnished with AU compound seals as standard. This compound provides excellent service in a wide variety of coolant applications. However, before using cylinders in synthetic or water-based coolants contact your coolant manufacture or supplier for seal compatibility recommendations. Fluorocarbon seals are available as an option, but have a significantly shorter life than standard seals. When the fixture is taken out of service, it is important that the cylinders be cleaned of coolant residue before storage. Failure to clean this residue may result in the cylinders sticking when returned to service. The cylinders are designed to function with an ISO 32 grade hydraulic fluid. Contact your fluid manufacture for seal compatibility recommendations if use of a synthetic or water based hydraulic fluid is intended. APPLICATION RECOMMENDATIONS Cylinders can be mounted in any position relative to the work-piece. The load applied should be applied parallel to cylinder centerline.

the extending force (pushing) for same hydraulic pressure.

On single acting push cylinders (spring return) only the extend piston area can be used to generate force.


On single acting pull cylinders, (spring extend) only the effective piston area of the return side of the piston is available to generate force.

PRECAUTIONS Do not use single acting cylinder to pull a load in the retract direction. The spring is designed to return plunger and overcome minimal backpressure only. Never apply side load to piston rod as this will cause premature wear of the piston rod and bushing. Never clamp at end of stroke, as the end of the piston will seat on body. This will result in no force being transmitted to the work piece.

Application Information

Max. Hyd. Op. Pres. - 5,000 psi Min. Hyd. Op. Pres. single acting - 750 psi Min. Hyd. Op. Pres. double acting - 500 psi

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