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{"title":"A4VSO40EO1\/10R-VPB13N00A4VSO40EO1\/10R-PPB13N00A4VSO40LR2\/10R-VPB25N00Rexroth","imgUrl":"https:\/\/img.chinax.com\/nimg\/b4\/b7\/ab03500d1fba5ffcb34accb314a2-200x200-1\/a4vso40eo1_2f10r_vpb13n00a4vso40eo1_2f10r_ppb13n00a4vso40lr2_2f10r_vpb25n00rexroth_axial_mechanical_piston_pump_imported_from_germ.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A4VSO40EO1\/10R-VPB13N00A4VSO40EO1\/10R-PPB13N00A4VSO40LR2\/10R-VPB25N00","Certification":"ISO","Place of Origin":"Germany"}}
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A4VSO71EO2/10R-VPB25N00 A4VSO71EO2/10R-VZB13N00 A4VSO71EO2/10R-PZB13N00 Rexroth mechanical axial equipment plunger pump imported from Germany with original packaging
Item
Specification
Brand Name
Rexroth
Place of Origin
Fujian, China
Warranty
12 Months
Video Outgoing-Inspection
Provided
Machinery Test Report
Provided
Application
Machinery Repair Shops
Material
Iron
Condition
Original
Certification
ISO
Feature
Long Life, Low Noise
Function
Filter Diesel Oil
A4VSO250EO2/22L-PPB25N00
A4VSO250EO2/22L-PPB13N00
A4VSO250EO1/22L-PPB25N00
A4VSO180EO1/22L-PPB25N00
A4VSO180EO2/22L-PPB25N00
A4VSO250LR2/22L-PPB13N00
A4VSO250DRG/22L-PPB25N00
A4VSO250LR2/22L-PPB25N00
A4VSO355DR/22L-PPB13N00
A4VSO180DRG/22L-PPB25N00
A4VSO180LR2/22L-PPB25N00
A4VSO250DR/22L-PPB25N00
A4VSO250DFR/22L-PPB13N00
A4VSO250DFR/22L-PPB25N00
A4VSO180LR2/22L-PPB13N00
A4VSO180EO1/22L-PPB13N00
A4VSO180EO2/22L-PPB13N00
A4VSO250DR/22L-PPB13N00
A4VSO250LR2G/22L-PPB25N0
A4VSO250DRG/22L-PPB13N00
A4VSO355LR2/22L-PPB13N00
A4VSO180DRG/22L-PPB13N00
A4VSO125LR2G/22L-PPB13N00
A4VSO180LR2G/22L-PPB13N00
A4VSO180DR/22L-PPB25N00
A4VSO180DR/22L-PPB13N00
A4VSO125EO2/22L-VZB25N00
A4VSO125EO2/22L-PPB13N00
A4VSO125EO1/22L-VZB25N00
A4VSO125EO1/22L-PPB13N00
A4VSO125LR2/22L-VZB25N00
A4VSO125DRG/22L-VZB25N00
A4VSO125DRG/22L-PPB13N00
FAQ;
Advanced Control System & PLC Integration
Q1: How to upgrade the LR2 hyperbolic power control to achieve adaptive load adjustment via PLC?
A1: The LR2 control can be upgraded with electronic proportional control for PLC integration, following these steps: ① Install a Rexroth VT-VSPA1-1-1X proportional amplifier to convert PLC signals (4-20mA/0-10V) into hydraulic control signals; ② Connect the pump’s power feedback sensor (R901500888) to the PLC’s analog input module to form a closed-loop control; ③ Use Siemens S7-1500 PLC to program adaptive logic — for example, in a crane system, the PLC adjusts the 4-20mA signal based on boom load (measured by a load cell): 4mA (10% displacement) for no load, 12mA (50% displacement) for medium load, 20mA (100% displacement) for full load; ④ Calibrate via Rexroth IndraWorks software to ensure signal linearity (error ≤1.5%); ⑤ Add a manual override switch for emergency operation. This upgrade reduces energy consumption by 25-30% compared to mechanical LR2 control.
Q2: What causes the LR2 control’s power limiting function to fail intermittently, and how to resolve it?
A2: Intermittent failure of power limiting is usually caused by unstable feedback or electrical interference: ① Feedback Signal Instability: Check the power feedback sensor’s wiring — loose terminals or damaged shielding can cause signal fluctuations. Replace the sensor cable with a double-shielded type (Rexroth R900023456) and secure terminals with heat-shrink tubing; ② Control Valve Contamination: The LR2 valve’s spool may stick intermittently due to fine particles. Disassemble the valve, clean the spool with ultrasonic cleaning (30 minutes, 40kHz), and reassemble with a new O-ring kit (R900912345); ③ Electrical Interference: If the pump is near high-voltage cables, install a signal filter (Rexroth VT-VRPA1-1-1X) between the amplifier and PLC to suppress noise (50/60Hz); ④ Pilot Pressure Fluctuation: Install a 0.3L accumulator in the pilot circuit to stabilize pressure (30-40 bar) during load spikes. After troubleshooting, test the power limiting function 10 times with varying loads to confirm stability.
Q3: How to integrate the pump with a hydraulic energy recovery system for regenerative braking (e.g., in mobile cranes)?
A3: Energy recovery integration leverages the pump’s bidirectional potential (when used as a motor): ① Hardware Configuration: Install a check valve (Rexroth SL 20 PA1-4X) and a high-pressure accumulator (50L, 350 bar) between the pump’s pressure port and the crane’s brake cylinder; ② Control Logic: When the crane lowers the boom (braking), the load drives the pump to rotate as a motor, charging the accumulator with high-pressure oil (via the check valve); when the boom lifts, the accumulator discharges to assist the pump, reducing the pump’s load by 40-50%; ③ Pressure Setting: Adjust the accumulator’s pre-charge pressure to 180 bar (60% of the pump’s working pressure) and set the pump’s pressure limiting value to 350 bar (10 bar above the accumulator’s maximum pressure); ④ Safety Measures: Install a pressure relief valve (420 bar) and a burst disc (450 bar) on the accumulator circuit to prevent overpressure. This system reduces fuel consumption by 15-20% in crane applications.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2015
Total Annual:
2000000-5000000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
Xiamen Lang Ye Hydraulic Electromechanical Equipment Co., Ltd.Lang Ye Hydraulic is the excellent supplier of hydraulic gear pump, HPU, hydraulic control valve, orbital motor and so on. We offer integrated R& D, production and sales service. We have our own self built R&D laboratory and a num... Xiamen Lang Ye Hydraulic Electromechanical Equipment Co., Ltd.Lang Ye Hydraulic is the excellent supplier of hydraulic gear pump, HPU, hydraulic control valve, orbital motor and so on. We offer integrated R& D, production and sales service. We have our own self built R&D laboratory and a num...
