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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"}}
{"title":"A4VSO71LR2G\/10R-VPB25N00A4VSO40DFR\/10R-PPB13N00A4VSO40LR2G\/10R-VPB25N00Rexroth","imgUrl":"https:\/\/img.chinax.com\/nimg\/15\/ee\/ed20d37d7033fe768c78acf40b46-200x200-1\/a4vso71lr2g_2f10r_vpb25n00a4vso40dfr_2f10r_ppb13n00a4vso40lr2g_2f10r_vpb25n00rexroth_a4vso_series_axial_piston_variabledisplacemen.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A4VSO71LR2G\/10R-VPB25N00A4VSO40DFR\/10R-PPB13N00A4VSO40LR2G\/10R-VPB25N00","Certification":"ISO","Place of Origin":"German"}}
A4VSO125DRG/22R-PPB13N00 A4VSO40LR2G/10L-PPB13N00 A4VSO71LR2/10R-VPB25N00 German Rexroth original hydraulic pump mechanical engineering imported genuine produc
Item
Specification
Product Name
A4VSO Hydraulic Pump
Model
A4VSO40 Hydraulic Pump
Brand Name
Rexroth
Pump Type
Piston Pump
Warranty
1 Year
Place of Origin
Fujian, China
Connection Size
1/4 inch
Max. Horsepower
2 HP
Number of Stages
1 Stage
Operating Pressure
100 bar
Pressure
Other
Structure
Other
Material
Carbon Steel
Application
Construction Machinery
MOQ
1 Piece
After-sales Service Provided
Line Support
Package
Wooden Case
Color
Customer's Request
A4VSO71EO1/30R-VPB13N00
A4VSO71EO1/30R-PPB13N00
A4VSO71LR2/30R-VPB25N00
A4VSO71LR2/30R-VZB13N00
A4VSO71LR2/30R-PZB13N00
A4VSO71LR2/30R-VPB13N00
A4VSO71LR2/30R-PPB13N00
A4VSO125DFR/30R-PZB13N00
A4VSO71DRG/30R-PZB13N00
A4VSO71DRG/30R-VPB13N00
A4VSO71DRG/30R-PPB13N00
A4VSO71DFR/30R-VPB25N00
A4VSO71DFR/30R-VZB13N00
A4VSO71DFR/30R-PZB13N00
A4VSO71DFR/30R-VPB13N00
A4VSO71DR/30R-VZB13N00
A4VSO71DFR/30R-PPB13N0
A4VSO71LR2G/30R-VPB25N00
A4VSO71LR2G/30R-PZB13N00
A4VSO71LR2G/30R-VPB13N00
A4VSO71LR2G/30R-PPB13N00
A4VSO71DR/30R-VPB25N00
A4VSO71LR2G/30R-VZB13N00
A4VSO500DR/22L-PPB13N00
A4VSO71DR/30R-VPB13N00
A4VSO71DR/30R-PPB13N00
A4VSO500EO2/22L-PPB13N00
A4VSO500EO1/22L-PPB13N00
A4VSO500LR2/22L-PPB13N00
A4VSO500DRG/22L-PPB13N00
A4VSO500DFR/22L-PPB13N00
FAQ;
1. Cross-Equipment Collaboration & System Matching
Q1: How to match this pump with a variable-frequency drive (VFD) for energy-saving operation, and what parameter settings are critical?
A4: VFD integration optimizes energy use by adjusting motor speed to match flow demand—key steps and settings: ① VFD Selection: Choose a VFD with 110% of the motor’s rated power (e.g., 41 kW VFD for a 37 kW motor) and compatible with the motor’s voltage (380V/400V); ② Wiring Requirements: Use shielded cables for VFD-to-motor connections to reduce electrical interference with the pump’s control system; separate VFD cables from hydraulic sensor cables by ≥30cm; ③ Critical VFD Parameters: 1) Base Frequency: Set to 50Hz (matches motor’s nominal speed of 1500 rpm); 2) Minimum Frequency: 15Hz (avoids motor stalling, corresponds to 450 rpm—above the pump’s minimum stable speed of 600 rpm, adjust if needed); 3) Acceleration/Deceleration Time: Set to 5 seconds (prevents pressure shocks from sudden speed changes); 4) V/F Curve: Select “quadratic” curve to match the pump’s power characteristics (P ∝ Q×p ∝ n×p, where n=speed); ④ Control Linkage: Connect the pump’s pressure sensor (4-20mA) to the VFD’s analog input—program the VFD to increase speed when pressure >300 bar (demands more flow) and decrease speed when pressure <200 bar (reduces flow). This integration reduces energy consumption by 35-45% in variable-load applications (e.g., concrete pumps).
Q2: What precautions apply when integrating the pump with a hydraulic winch system (e.g., offshore cranes)?
A5: Winch systems require precise speed control and safety redundancy—critical integration precautions: ① Flow Control Coordination: Install a proportional flow control valve (Rexroth 2FRE 10-4X/10LB) between the pump and winch to fine-tune winch speed independently of the pump’s LR2 control; ② Safety Interlocks: Connect the winch’s emergency brake to the pump’s control system—if pump pressure drops below 100 bar, the brake engages automatically to prevent load free-fall; ③ Pressure Compensation: Set the pump’s LR2 power limit to 110% of the winch’s maximum load power (e.g., 41 kW for a 37 kW winch) to handle sudden load spikes (e.g., wave-induced load surges in offshore use); ④ Heat Dissipation: Winch systems often operate at low speed (high torque), increasing pump heat—install an oil cooler with 2x the standard capacity (e.g., 10 kW instead of 5 kW); ⑤ Line Routing: Route pressure lines to the winch with minimal bends (≤2 bends per meter) to reduce pressure drop (≤5 bar) and avoid winch speed fluctuations. Improper integration can lead to winch speed instability (±10%) or brake failure.
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...
