Construction Machinery 90R55 Piston shoe 9 Pieces/Set

The 90R55 Piston shoe is a high-precision hydraulic pump accessory specially engineered for construction machinery and other heavy-duty hydraulic systems. Designed with a small-hole structure and supplied in a 9-piece set, it delivers stable support and efficient pressure transfer, ensuring reliable operation under demanding high-pressure and high-speed conditions. This critical component works closely with the plunger and cylinder block to maintain smooth motion, reduce friction, and extend pump service life.

Specifications

Applications

The 90R55 Piston shoe is widely used in construction machinery, mining equipment, metallurgical systems, injection molding machines, and various industrial hydraulic pumps. It provides sliding support and smooth pressure transmission inside the plunger pump, ensuring consistent power output and long-term stability even in harsh working environments.

Key Advantages

1. Durable High-Strength Material – Premium alloy steel or composite construction offers excellent fatigue resistance and long service life.

2. Precision Finish – Advanced grinding and anti-wear treatment minimize friction, reduce energy loss, and maintain tight sealing.

3. Optimized Small-Hole Design – Ensures uniform lubrication, lowers vibration and noise, and supports high-efficiency operation.

4. Convenient Maintenance – Standardized 9-piece set allows quick installation and easy replacement, reducing downtime and maintenance costs.

With its robust structure and outstanding reliability, the 90R55 Piston shoe is an ideal solution for construction machinery hydraulic pumps that demand superior efficiency and dependable performance in