Impact RM / Vibratech - Rail Products - Hydraulic Rotary Shock Absorbers

Premium Suspension Damping for Rail Cars

The demand for improved ride quality and increased durability makes Vibratech's exclusive Rotary Shock Absorber (RSA) the perfect choice to control vertical and lateral motion in rail suspension applications. RSA's are built to outlast and outperform linear type shock absorbers, offering the best ride quality available today.

The unique RSA is a vane type shock absorber. Stationary abutments and a moveable center shaft with integral vanes form working chambers.

The fluid-filled opposing chambers are interconnected through a metering valve. Rotational force applied to the end of the wingshaft displaces the fluid from the high-pressure chamber to the opposing low-pressure chamber.

This causes a resistance to relative motion and damping of the input force. The amount of damping torque is governed by angular velocity of the load applied to the shock absorber and by the valving settings.

Outstanding Features

Rebuildable Design allows for factory-direct reconditioning for extended service life

A Variety of Installation Arrangements solve difficult application problems

Spring-Loaded Dynamic Shaft Seal prevents external leakage and provides continuous self-adjustment for service wear

Completely Self-Contained Design

Resistant to Deterioration caused by water, dirt, or corrosive action for dependable operation

Automatic "High Shock" Relief Valves protect components from damage due to instantaneous shock loads and limit torque developed in operation

Uniform Damping Characteristics over wide temperature ranges are achieved with an automatic temperature-compensating valve

Factory-Adjustable Valving allows changes in damping strength to meet application requirements or to compensate for wear

External Access to Fluid Reserve permits periodic check of fluid level

Performance Characteristics

Typical RSA torque values for standard models are shown in the composite curves. The curves indicate normal working torque at average factory settings. A wide range of damping torque is available for each model. Damping torque is typically set within ±10% of the specified test value.

For complete detailed drawings, please contact us.

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	Premium Suspension Damping for Rail Cars The demand for improved ride quality and increased durability makes Vibratech's exclusive Rotary Shock Absorber (RSA) the perfect choice to control vertical and lateral motion in rail suspension applications. RSA's are built to outlast and outperform linear type shock absorbers, offering the best ride quality available today. The unique RSA is a vane type shock absorber. Stationary abutments and a moveable center shaft with integral vanes form working chambers. The fluid-filled opposing chambers are interconnected through a metering valve. Rotational force applied to the end of the wingshaft displaces the fluid from the high-pressure chamber to the opposing low-pressure chamber. This causes a resistance to relative motion and damping of the input force. The amount of damping torque is governed by angular velocity of the load applied to the shock absorber and by the valving settings. Outstanding Features Rebuildable Design allows for factory-direct reconditioning for extended service life A Variety of Installation Arrangements solve difficult application problems Spring-Loaded Dynamic Shaft Seal prevents external leakage and provides continuous self-adjustment for service wear Completely Self-Contained Design Resistant to Deterioration caused by water, dirt, or corrosive action for dependable operation Automatic "High Shock" Relief Valves protect components from damage due to instantaneous shock loads and limit torque developed in operation Uniform Damping Characteristics over wide temperature ranges are achieved with an automatic temperature-compensating valve Factory-Adjustable Valving allows changes in damping strength to meet application requirements or to compensate for wear External Access to Fluid Reserve permits periodic check of fluid level Performance Characteristics Typical RSA torque values for standard models are shown in the composite curves. The curves indicate normal working torque at average factory settings. A wide range of damping torque is available for each model. Damping torque is typically set within ±10% of the specified test value. For complete detailed drawings, please contact us. back to top

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