Product Overview

Core Features

• Superior High-pressure Resistance: Rated working pressure up to 350 bar, peak pressure reaches 400 bar, perfectly adapting to high-load and high-pressure harsh industrial working conditions.
• Complete Displacement Coverage: Standard displacement options include 40, 71, 125, 180, 250, 355, 500, 750, 1000 cm³/r, covering light to super heavy-duty equipment demands.
• Diversified Control Modes: Equipped with multiple control configurations including DR, DFR, FR, LR, MA, EO, etc., supporting constant pressure, constant flow, constant power, proportional electric control and other system control requirements.
• Rugged & Durable Structure: High-strength alloy housing and optimized swashplate structure design, with impact resistance, low noise, high volumetric efficiency and extended bearing service life.
• Flexible Through-shaft Drive: Supports series connection with gear pumps and auxiliary pumps to realize multi-pump combined drive, greatly improving system integration flexibility.
• Wide Medium Adaptability: Standard configuration adapts to mineral hydraulic oil, and optional specifications are compatible with HFC fire-resistant hydraulic fluid.
• Stable & Energy-saving: Optimized internal flow channel design reduces flow loss and heat generation, effectively improving hydraulic system energy utilization rate.

Standard Technical Parameters

• Series: A4VSO 1X / 3X
• Structure Type: Swashplate axial piston variable pump
• Applicable Circuit: Open hydraulic circuit
• Rated Pressure: 350 bar
• Peak Pressure: 400 bar
• Rated Speed Range: 600–3000 rpm (depending on specific model)
• Working Temperature Range: -20°C ~ +80°C
• Applicable Fluid Viscosity: 10–100 mm²/s
• Installation Method: Flange mounting, horizontal / vertical installation available
• Main Application: Industrial heavy-duty hydraulic system power source

Typical Application Industries

• Metallurgical Equipment: Rolling mills, straightening machines, shearing machines, hydraulic presses
• Mining Machinery: Roadheaders, crushers, hydraulic support equipment, mining loaders
• Engineering Machinery: Large excavators, tunnel boring machines, crawler cranes
• Pressure Machinery: Ceramic presses, forging presses, large injection molding machines
• Marine & Offshore Engineering: Deck machinery, steering gear, anchor machinery, marine hydraulic stations
• Power Industry: Wind power hydraulic systems, generator set transmission systems

20 PCS Complete A4VSO Models with Original R Material Numbers