English
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Product Advantage
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Provide the return force of the plunger Through the internal elastic structure, the plunger can quickly return to the suction position after completing the oil pressure stroke, maintaining continuous and stable circulation. | Stable plunger motion trajectory The return sleeve provides guidance for the plunger, ensuring that it does not swing excessively in the cylinder bore and reducing wear. | Maintain the integrity of the plunger assembly The plunger, sliding shoe, ball head and other components are assembled in the return sleeve to form an assembly, making the operation more stable. | Enable the plunger to automatically adjust with changes in the angle of the inclined plate The return sleeve and sliding shoe structure allow the plunger to automatically adjust its angle under different swing angles of the inclined plate, ensuring uniform force distribution |
Technical Parameters
| ITEMS | DESCRIPTION |
| Name | Plunger Assembly |
| Code | WHST40-08-5B |
| Weight | 0.25 1 piece/set |
| Size(mm) | 35 Φ(lower):45 H:17 |
Product Uses
Crawler type harvester walking drive
High pressure hydrostatic transmission system
Operating conditions that require precise speed control
It is one of the core vulnerable parts of plunger pumps/motors
Product Operate Guide
Common faults and manifestations
① Return sleeve wear
→ Walking weakness, reduced pressure, and increased internal leakage.
② The clearance between plunger fittings is too large
Vibration, increased noise, and decreased efficiency.
③ Wear or detachment of sliding shoes
The roughness of the distribution plate, if severe, can lead to the scrapping of HST.
④ Spring fatigue
The return speed of the plunger decreases, manifested as:
Slow vehicle movement
Heat increase
Reduced system efficiency
Product Video
