OEM HITACHI EX220 SWING DEVICE SLEW BOX CYLINDER BLOCK ROTOR PISTON RING (OEM HI 4365525) | Tonkee®

Material Composition: The cylinder block rotor piston ring is typically made from high-quality materials like steel or a durable alloy.

This choice of materials ensures the ring's ability to withstand the high-pressure hydraulic forces and mechanical stress it experiences during the excavator's operation.

Sealing Function: The primary function of the piston ring is to provide a reliable seal within the hydraulic cylinder block. It ensures that hydraulic fluid remains contained within the cylinder, preventing leaks and maintaining hydraulic pressure. This is crucial for the precise control of the excavator's swing motion.

Precise Dimensions: The dimensions of the piston ring are meticulously engineered to fit precisely within the cylinder block. It must have a tight yet smooth fit to prevent any fluid bypass or loss of pressure. Additionally, the ring's shape and size must match the cylinder block's specifications to ensure proper function.

Wear Resistance: The cylinder block rotor piston ring is subject to continuous movement and pressure during the excavator's operation. As such, it is designed to be highly wear-resistant. Special coatings or treatments may be applied to enhance its durability and longevity.

Compatibility: OEM (Original Equipment Manufacturer) parts like the HI 4365525 are specifically designed to be compatible with the HITACHI EX220 excavator.

This ensures that the ring fits perfectly within the existing components of the machine, allowing for easy replacement during maintenance and repairs.

Hydraulic Performance: The piston ring's quality and precision directly impact the hydraulic performance of the swing device. A well-maintained and properly functioning piston ring ensures smooth and efficient hydraulic operation, contributing to the excavator's overall performance and productivity.

Reliability: Reliability is a critical factor in construction equipment, where downtime can be costly. The OEM HI 4365525 piston ring is engineered to be highly reliable, reducing the risk of unexpected failures and ensuring the excavator's continuous operation.

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