The part of Crane - Buffer

The part of 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

Advantages of Crane Parts:

• 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℃

Hydraulic Buffer

Advantages of Overhead Crane:

• 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℃;
• Suitable for use on heavy-duty cranes or in special applications.