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Crane Buffer

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Crane Buffer

During crane or trolley running, the brakes or limit switches may suddenly break down. Due to inertia, the vehicle will continue in the state of motion until running into the end stop preset at both ends of its runway track. The aim of adding a Crane Buffer to the contact area between the end stop and trolley or crane is to absorb the majority of energy produced in an impact shock. Following is a list of two buffer forms most commonly in use today.

Polyurethane Buffer


Lightweight design available at a competitive price

Ease of maintenance and repair

Resistant to corrosion, impact and stress

Generate neither noise nor sparks during operation, thus suitable for use in explosive atmosphere.

Technical Features

Crane buffer density:0.55-0.65

Shore hardness:50-65

Compressive Strength(50% compression):12-15kg/cm2

Operating Temperature:-30-60 degrees

Hydraulic Buffer


With the increase in the extent of compression, the number of holes that allow fluid to pass through will be reduced to ensure a uniform speed at which the buffering process is carried out.

Despite its compact design, this series of crane buffer is able to absorb a large amount of energy.

This hydraulic buffer enables a maximum deceleration of the running crane or trolley while coming in a minimum size. For cranes with high mass or speed exceeding 2m/s, the buffer just provides a most suitable solution.

Technical Features

Absorb 80% to 100% of energy produced in impact shock

Angle of deflection after collision is controlled within the range between 0 and 1

Operating temperature:-25~80 degrees

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