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China factory - Xiamen Lang Ye Hydraulic Electromechanical Equipment Co., Ltd

Xiamen Lang Ye Hydraulic Electromechanical Equipment Co., Ltd

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  2. Rexroth Hydraulic Pump>
  3. A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering
China A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering
China A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering

  1. China A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering

A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering

  1. MOQ： negotiation
  2. Price： Negotiation
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Payment Terms MoneyGram,Western Union,T/T,D/P,D/A,L/C
Supply Ability negotiation
Delivery Time negotiation
Products Name Rexroth Hydraulic Piston Pump
Speed Hydraulic oil, water ethylene glycol
Part No A10VSO28DFR/31L-PPA12N00
Seal Type Lip Seal or Mechanical Seal
Drive Mode Mechanically Driven Pump
Usage Oil
Brand Name Rexroth
Model Number A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00
Certification ISO
Place of Origin German

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms MoneyGram,Western Union,T/T,D/P,D/A,L/C Supply Ability negotiation
Delivery Time negotiation Products Name Rexroth Hydraulic Piston Pump
Speed Hydraulic oil, water ethylene glycol Part No A10VSO28DFR/31L-PPA12N00
Seal Type Lip Seal or Mechanical Seal Drive Mode Mechanically Driven Pump
Usage Oil Brand Name Rexroth
Model Number A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 Certification ISO
Place of Origin German
High Light Rexroth hydraulic pump A10VSO28DR ，original imported hydraulic pump ，German Rexroth hydraulic pump

A10VSO28DR/31R-PPA12N00 A10VSO28DG/31L-PPA12N00 German Rexroth Engineering Systems Mechanical Equipment Genuine Original Imported Hydraulic Pump

Parameter

Details

Product Name

Hydraulic Piston Pump

Brand Name

REXROTH

Maximum Flow Rate

Depend on Model

Power (W)

Depend on Model

Pressure

Depend on Model

Structure

Depend on Model

Weight

33 (Unit: Not Specified)

Warranty

1 Year

Package

Wooden Box

Showroom Location

None

A10VSO71DG/32R-VPB32U00

A10VSO100DG/32R-PPB22U00

A10VSO100DR/32R-PPB22U99

A10VSO71DG/32R-VPB22U00

A10VSO100DG/32R-PPB32U99

A10VSO71DRG/32R-PPB22U99

A10VSO45DR/32R-PPB22U00

A10VSO140DFLR/31L-VPA12N00

A10VSO45DRF/32R-PPB22U00

A10VSO45DG/32R-VPB22U00

A10VSO45DRF/32R-VPB22U00

A10VSO45DG/32R-PPB32U00

A10VSO45DRF1/32R-VPB32U00

A10VSO71DR/32R-PPB22U00

A10VSO71DRS/32R-PPB22U00

A10VSO71DRS/32R-PPB22U99

A10VSO140DG/31R-VPA12N00

A10VSO140DFR/31R-VPA12N00

A10VSO140DFLR/31L-PPA12N00

A10VSO45DRF1/32R-PPB22U00

A10VSO71DG/32R-PPB22U00

A10VSO45DRG/32R-PPB22U00

A10VSO71DG/32R-PPB22U99

A10VSO71DR/32R-PPB22U99

A10VSO71DRF/32R-PPB22U99

A10VSO71DRF1/32R-PPB22U00

A10VSO71DRF1/32R-PPB22U99

A10VSO71DRG/32R-PPB22U00

A10VSO140DR/31R-VPA12N00

A10VSO140DRG/31R-VPA12N00

A10VSO140DR/31L-VPA12N00

A10VSO45DG/32R-PPB22U00

A10VSO45DRS/32R-PPB22U00

A10VSO45DR/32R-VPB22U00

A10VSO140DR/31L-PPA12N00

A10VSO140DFLR/31R-PPA12N00

A10VSO100DFR/31R-PPA12N00

A10VSO71DR/31L-PPA12N00

A10VSO71DR/31L-PPA42N00

A10VSO71DG/31L-PPA12N00

A10VSO71DFLR/31L-VPA42N00

A10VSO100DR/31R-VPA12N00

A10VSO100DFR/31R-VPA12N00

A10VSO100DFLR/31L-VPA12N00

FAQ;

4. Fault Diagnosis & Root Cause Analysis

Q1: The pump’s volumetric efficiency drops to 85%—what are the possible causes and restoration methods?
A11: Volumetric efficiency reduction (normal ≥95%) is mainly caused by internal or external leakage: ① Internal leakage causes: 1) Piston-cylinder pair wear (clearance >0.03mm)—replace with genuine pairs; 2) Valve plate and cylinder block contact surface damage (scratches ≥0.02mm)—lap with abrasive paper (400-grit then 800-grit) until the contact area reaches ≥90%; 3) Swashplate seal ring damage—replace the O-ring (FKM material); ② External leakage causes: Pressure port seal damage or hose aging—replace seals and hoses; ③ Restoration steps: After replacing worn parts, assemble the pump and perform a volumetric efficiency test: run at 1500 rpm and 280 bar, measure flow (should be ≥64 L/min for 45 cm³/r pump); if efficiency is still low, recheck the valve plate lapping quality; ④ Preventive measures: Maintain oil cleanliness (NAS 9 class) and replace oil every 6 months to reduce wear.
Q2: What are the early warning signs of pump failure, and how to monitor them?
A12: Early warning signs and monitoring methods: ① Abnormal temperature rise: Case drain temperature increases by 10-15°C compared to normal operation—monitor with a contact thermometer (check daily); ② Pressure fluctuations: Pressure gauge shows ±10 bar fluctuations during stable operation—install a pressure recorder (Rexroth R901023456) to track changes; ③ Oil contamination: Oil turns black or has metal particles—use a magnetic plug in the tank to collect debris (check weekly); ④ Noise change: Noise increases by 5-8 dB—use a sound level meter to measure (record monthly); ⑤ Flow reduction: System execution speed slows down—measure flow with a bucket and stopwatch (check biweekly). Establish a "baseline database" of normal operating parameters (temperature, pressure, noise, flow) during pump commissioning, and compare with real-time data to detect early failures.


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...

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  • Xiamen Lang Ye Hydraulic Electromechanical Equipment Co., Ltd
  • Xia'Men City, China
  • https://www.pumpshydraulics.com/

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