OEM HITACHI ZX120 130 HYDRAULIC PUMP SWASH PLATE | Tonkee®

The swash plate is a key component within the hydraulic pump of these excavators.

It is a circular or oblong disc that can be tilted or rotated to control the volume and direction of hydraulic fluid flow. By adjusting the angle of the swash plate, operators can regulate the speed and power of the hydraulic functions, such as the boom, arm, and bucket movements. This control is essential for precise and efficient operation in various excavation tasks.

Material and Construction:

The swash plate in the Hitachi ZX120 and ZX130 hydraulic pumps is typically made of high-strength materials like hardened steel or alloy to withstand the high-pressure hydraulic forces and continuous wear and tear. Its surface is often precision machined to ensure a smooth and reliable operation. Additionally, it is designed to be corrosion-resistant to extend its service life, even in demanding working conditions.

Functionality:

The primary function of the swash plate is to control the displacement of the hydraulic pump.

When the swash plate is tilted or rotated, it varies the size of the pump's internal piston chambers, which in turn controls the flow rate of hydraulic fluid. This variable flow rate allows for precise control of the excavator's movements, from slow and precise digging to rapid and powerful operations.

Hydraulic Pump Compatibility:

The swash plate in the Hitachi ZX120 and ZX130 hydraulic pumps is designed to be compatible with the specific hydraulic pump model used in these excavators. It must match the pump's specifications and dimensions precisely to ensure seamless integration and optimal performance.

Maintenance and Replacement:

Over time, due to continuous use and wear, the swash plate may require maintenance or replacement. Regular inspections and maintenance of the hydraulic pump, including the swash plate, are essential to ensure the excavator's reliable operation. When replacement is necessary, it's crucial to use a genuine Hitachi swash plate or a high-quality aftermarket component designed to meet or exceed OEM specifications.

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