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hydraulic gear pump AP2D28 3
hydraulic gear pump AP2D28 2
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REXROTH AP2D28 Hydraulic Gear Pump for VOLVO EC55 Excavator

Equipment Brand: VOLVO
Equipment Type: Excavator
Equipment Model: EC55
OEM Product Brand: VOLVO
Product Model: AP2D28
Product Name: Hydraulic Gear Pump
  • Delivery Time:
  • 1-2 days
  • Payment Terms:
  • T/T, Western Union
  • Shipping:
  • By Sea, Air, DHL, UPS and Fedex
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Product Description

The AP2D28 Hydraulic Gear Pump is precision-engineered for VOLVO EC55 excavators, delivering robust performance in urban construction and material handling. Leveraging REXROTH’s patented pressure-compensated control and forged 34CrMo4 alloy gears, it achieves 97% volumetric efficiency under 260 Bar continuous load. Our factory-direct production ensures zero-tolerance quality with 24-hour custom modifications (shaft splines, porting) and 48-hour global shipping. Integrated IoT readiness and 1-year extended warranty options redefine reliability for modern hydraulics.

Product Features:
In Stock: REXROTH AP2D28 Hydraulic Gear Pump for VOLVO EC55 Excavator is readily available.

Global Shipping: We support global delivery via sea, air, DHL, UPS, and FedEx.
Professional After-Sales Service: Provide comprehensive after-sales support to ensure customer satisfaction.

 

FAQ Section

How does the AP2D28 Hydraulic Gear Pump maintain high efficiency under variable loads?

Answer: Its pressure-compensated spool (REXROTH SCA-10 design) dynamically adjusts displacement based on system demand, reducing energy loss by 22% compared to fixed pumps. Real-time efficiency is monitored via integrated sensors and displayed on VOLVO’s Co-Pilot interface.

What makes the AP2D28 Hydraulic Gear Pump uniquely suited for VOLVO EC55 excavators?

Answer: The pump’s flange complies with VOLVO’s SBA 1212-3 standard, and its splined shaft (DIN 5480-20×1.5×30) matches EC55’s drive system. Pre-calibrated pressure settings (210-260 Bar) eliminate post-installation tuning.

How is wear resistance ensured in the AP2D28’s gear set?

Answer: Gears undergo vacuum carburizing (Case depth: 0.8-1.2mm, HV 750) and superfinishing (Ra ≤0.2μm). Optional DLC (Diamond-Like Carbon) coating extends lifespan to 20,000 hours in abrasive environments.

How to diagnose pressure fluctuations in the AP2D28 Hydraulic Gear Pump system?

Answer: Use REXROTH’s FluidLab Mobile app to analyze pressure ripple (<±2% of nominal). Common causes: air ingress (check suction lines) or compensator valve contamination (flush with HLP 46 oil).

 

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