Compact Design AP2D28 Dual port Excavator Pilot Pump For Mining Work
100% Compatible AP2D28 Double Tube Pilot Pump For Mining Work
Pilot Pump Introduction
The AP2D28 dual-port pilot pump is a gear-type auxiliary pump primarily used in the hydraulic systems of mini excavators. It works in conjunction with the main piston pump to provide a stable low-pressure pilot control circuit. Featuring a dual-port design, it is compact, reliable, and originally part of the Uchida/Rexroth series. Now, it is mostly produced as a high-quality compatible component and is widely used in 5-8 ton excavators, such as the DH55/DH60, R55/R60, EC55/EC60, and EX60 models. It is a common core component in the hydraulic systems of mini excavators.
This series covers the essential needs of hydraulic pilot control with practical, field-proven solutions. It offers a balanced combination of size, performance, and serviceability that suits both new machine designs and replacement applications in existing fleets.
Hebei Runhe Hydraulic Machinery Co., Ltd. is a trusted hydraulic system provider with 12+ years of expertise. It focuses on R&D, manufacturing and sales, with products used in printing machinery, port ships and more. It provides non-standard customization and follows strict quality control.
Pilot Pump Parameters
|
Model |
Nominal displacement (mL/r) |
Pressure(Mpa) |
Speed(r/min) |
Volumetric Efficiency (≥%) |
Weight (kg) |
||
|
Rated |
Pull |
Optimun speed |
Speed range |
||||
|
AP2D28 |
16/4.5 |
20/5 |
25/8 |
1500~2500 |
600~3000 |
92 |
6.3 |
|
Involute spline spec. |
|
|
Teeth |
10 |
|
D.P |
16/32 |
|
Pressure Angle |
30° |
|
Major Circle |
ϕ17(Up: 0 Down: -0.13) |
|
Minor Circle |
ϕ13.8 |
Package
Normally, it is packaged in cardboard boxes and then shipped on pallets or wooden crates. Special requirements from customers can be discussed and negotiated.
FAQ
Q: Can this pilot pump directly replace the original?
A: Yes, the high-quality compatible pilot pump has the same installation dimensions and performance parameters as the original, and can be directly replaced without modifying the piping.
Q: What is the warranty period?
A: We offer a one-year warranty. During the warranty period, if the malfunction is caused by a quality issue with the product's original manufacturer, we will repair or replace it free of charge.
Q: I couldn't find my model. Can I still use it?
A: We recommend providing your excavator's specific model number, a photo of the main pump, or the original pump's nameplate information. We can help you confirm compatibility free of charge.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.