Single Acting Cylinder

Spring Return Cylinder

An internal spring returns the piston the moment pressure drops. Built for clamping, pressing and light automation.

Spring Return Cylinder

Technical specifications

Spring Return Hydraulic Cylinders provide hydraulic force in one direction while a built-in mechanical spring automatically returns the piston to its original position when hydraulic pressure is released.

Unlike load return cylinders that depend on external forces for retraction, spring return cylinders carry their own return mechanism internally. This makes them ideal for applications where the cylinder may be mounted in any orientation — horizontal, vertical, or inverted — and a consistent, predictable return stroke is essential regardless of load direction.

KBR Engineers manufactures spring return cylinders with carefully selected spring rates matched to the application requirements. The springs are pre-loaded and housed within the cylinder barrel, ensuring smooth, controlled retraction every cycle. Each cylinder features precision-machined components, premium sealing systems, and undergoes thorough testing before shipment.

These cylinders are commonly used in clamping fixtures, pressing operations, punching machines, automated assembly systems, and any application requiring reliable automatic retraction in repetitive cycles.

Bore Diameter50 mm to 1000 mm
Piston Rod Diameter30 mm to 900 mm
Stroke LengthUp to 6000 mm, application dependent
Working PressureUp to 350 bar
Test Pressure1.5 × working pressure
MountingCustomer specified
Seal MaterialPolyurethane / Nitrile, field replaceable
Cylinder TubeHoned steel tube, H8 tolerance
Piston RodHard chrome plated, f7 tolerance
Operating Temperature-20 °C to +100 °C

Manufacturing Range

KBR Engineers manufactures a wide range of custom-built hydraulic cylinders to meet diverse industrial requirements. We offer cylinder bore sizes from 50 mm to 1000 mm and piston rod diameters from 30 mm to 900 mm. All cylinders are designed and manufactured using high-quality materials, precision machining, and advanced sealing technology to ensure reliable performance, durability, and long service life.

Product features

High Pressure

Rated up to 350 bar working pressure.

Precision Honed

H8 tolerance bore finish for even seal wear.

Pressure Tested

Every unit tested at 1.5× working pressure before dispatch.

Automatic Return

Internal spring retracts the piston the moment pressure drops.

Applications

Construction EquipmentMaterial HandlingSteel & Cement PlantsAgricultureMiningHydraulic Presses

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