Pilot Pressure Pump PC50/56 Pilot Pump For PC50 PC50MR-2 Mini Excavator
Pilot Pressure Pump PC50/56 Pilot Pump For PC50 PC50MR-2 Mini Excavator
Pilot Pump Introduction
The PC50/PC56 pilot pump is a key gear-type pilot/replenishing pump in the hydraulic system of the PC50 and PC56 series mini excavators. It generates a low-pressure, stable oil flow through the high-speed rotation of external meshing gears. On one hand, it continuously supplies oil to the pilot control circuit, driving the PPC valve and pilot valve to ensure sensitive and precise operation of the control levers. On the other hand, it provides replenishment oil to the main pump, effectively preventing cavitation and assisting in system cooling and lubrication. This pump is compact, highly reliable, and easy to maintain. It is directly compatible with models such as PC50MR-2, PC55, and PC56, and is a crucial component ensuring the overall machine's handling performance and stable hydraulic system operation.
Pilot Pump Parameters
|
Model |
Nominal displacement (mL/r) |
Pressure(Mpa) |
Speed(r/min) |
Volumetric Efficiency (≥%) |
Weight (kg) |
||
|
Rated |
Pull |
Optimun speed |
Speed range |
||||
|
PC50/56 |
14.5/4.5 |
20/6 |
25/8 |
1500~2500 |
600~3000 |
92 |
5.2 |
|
Involute spline spec. |
|
|
Teeth |
10 |
|
D.P |
16/32 |
|
Pressure Angle |
30° |
|
Major Circle |
ϕ17(Up: 0 ;Down: -0.068) |
|
Minor Circle |
ϕ13.8 |
Pilot Pump Advantages
- Stable and Reliable Pilot Oil Supply: Provides a stable low-pressure pilot oil and replenishment oil pressure to the system, ensuring sensitive and accurate control of the control levers, multi-way valves, etc., with fast response.
- Effective Protection of the Main Pump: Provides sufficient replenishment oil, lubrication, and cooling to the main hydraulic pump, preventing cavitation and dry friction, and significantly reducing main pump wear.
- Extend the lifespan of the entire hydraulic system: Stable replenishment pressure reduces abnormal wear on key components (plungers, bearings, distributor plates, etc.), lowering failure rates and maintenance costs.
- High-efficiency, low-noise operation: Optimized gear design ensures smooth operation, low noise, high volumetric efficiency, and superior energy consumption.
Our Company
Hebei Runhe Hydraulic Machinery Co., Ltd. is a leading manufacturer specializing in hydraulic system solutions. We are also one of the most recognized suppliers of large OEM equipment manufacturers in Pilot Pump. With more than 12 years of industry experience.
Our products include hydraulic cylinder, hydraulic pump, hydraulic motor, widely used in automation equipment, agricultural machinery, lifting machinery, engineering vehicles, printing machinery, intelligent storage system, port ships and many other industries.In addition to the standard series of hydraulic cylinders, we can also provide customized production services according to customer drawings. Our non-standard customization capabilities meet the special needs of customers, such as special port forms, special materials, special installation, special performance, stacked hydraulic valves, etc.
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