LD-A4VSO125 125cc High Pressure Open Circuit Variable Piston Pump | DP Dual Pressure Control HYDSUNRIDA

LD-A4VSO125 125cc High Pressure Open Circuit Variable Piston Pump | DP Dual Pressure Control HYDSUNRIDA

HYDSUNRIDA LD-A4VSO125 125cc open circuit piston pump, 350bar rated & 400bar peak pressure, DP dual pressure control, 1:1 imported pump replacement, factory direct supply for heavy industrial and construction machinery.SEO Meta Long: Premium LD-A4VSO125 high-pressure open circuit variable piston pump with 125cc displacement and DP dual pressure control. Stable pressure regulation and strong expandability, ideal for metallurgical, mining, marine and agricultural hydraulic system replacement.

1. Product Overview

LD-A4VSO125 is a heavy-duty open-circuit variable piston pump with 125cc medium-large displacement. Rated at 350bar (400bar peak), it supports 24/7 full-load continuous operation with reliable DP dual pressure control.It features standard 30-series mounting dimensions for 1:1 non-destructive replacement of imported pumps. Factory direct supply lowers costs and delivers fast after-sales support.

2. Quality Certification & Testing

Certified with ISO9001 & SGS, all pumps comply with international industrial hydraulic standards for stable quality.Every unit passes strict pressure, stability, leakage and endurance tests to ensure jitter-free and stable performance under sustained heavy loads.

3. Core Technical Parameters & Control Modes

3.1 Basic Specifications

• Rated Displacement: 125 ml/r (Mainstream medium-large displacement for heavy-duty hydraulic equipment)

• Nominal Pressure: 350 bar

• Peak Pressure: 400 bar

• Max Speed: 2200 rpm

• Net Weight: 83Kg

• Oil Port Layout: Dual-side arrangement

• Rotation Direction: R (Clockwise)

• Applicable Circuit: Open hydraulic circuit

• Through-Drive Feature: 100% full through-shaft series drive available

• Warranty: 12-month complete machine warranty

3.2 Control Mode

• DP Dual Pressure Control: Supports constant pressure regulation and remote pressure adjustment, featuring stable output and fast response

4. Core Advantages

4.1 Complete Displacement Coverage & Wide Adaptability

As a mainstream A4VSO30 series model, it boasts wide compatibility, fitting most medium and large heavy-duty hydraulic equipment for diverse industrial scenarios.

4.2 Optimized Open-Circuit Stability

Optimized heat dissipation structure controls temperature rise effectively, avoiding high-temperature pressure drop and jitter, reducing failure rate and extending service life.

4.3 Energy-Saving & Low-Noise Operation

Precision swashplate adapts flow and pressure to real-time load, cutting no-load power consumption. Low-noise operation improves overall system efficiency.

4.4 1:1 Zero-Modification Replacement

Fully compliant with 30-series ISO/SAE standards. Direct replacement without modification, saving renovation and maintenance costs.

4.5 Harsh Environment Adaptability

Upgraded heavy-duty composite bearings resist axial and radial impact loads, adapting to vibration, dust and harsh outdoor & underground working conditions.

4.6 Diversified Control & Strong Expandability

Supports multiple control modes and dual oil drain design for better anti-cavitation performance. 100% through-shaft structure enables flexible multi-pump series expansion.

4.7 Factory Direct Supply & Full Service

Factory direct supply with competitive prices and sufficient stock. Full professional support for model selection, installation and after-sales service.

5. Full Series Standard Models (LD Upgrade Version)

LD upgraded pump delivers higher stability, better heat dissipation and longer durability than standard original pumps.A4VSO125DP/30R-PPB25N00-LD, A4VSO125DP/30L-PPB25N00-LD, A4VSO125DR/30R-PPB25N00-LD, A4VSO125DR/30L-PPB25N00-LD, A4VSO125DFR/30R-PPB25N00-LD, A4VSO125DFR/30L-PPB25N00-LD, A4VSO125DRG/30R-PPB25N00-LD, A4VSO125DRS/30R-PPB25K01-LD, A4VSO125LR3N/30R-PPB25N00-LD, A4VSO125FE1/30R-PPB25N00-LD

6. Application Fields

Widely used in metallurgy, construction, mining, port, marine and agricultural machinery. Ideal for imported pump replacement and domestic hydraulic system upgrading.