A6VM80 Series Hydraulic Pump – Axial Piston Variable Motor for Excavators

The A6VM80 Series Hydraulic Pump is a high-performance axial piston variable motor designed exclusively for excavator main hydraulic pumps. With a rated displacement of 80 cc/rev and a nominal pressure of 400 bar, it provides reliable and efficient hydraulic power for heavy-duty excavators, including Cat 320B, Kobelco SK series, and Kubota models. Engineered for both open and closed hydrostatic circuits, this pump ensures precise and responsive control under demanding operational conditions.

Applications

• Excavator Hydraulic Systems: Provides stable and consistent hydraulic power to the boom, arm, bucket, and swing functions.

• Main Pump Replacement: Compatible with Cat 320B, Kobelco SK, and Kubota excavators.

• Construction & Mining Equipment: Supports heavy machinery requiring high-pressure hydraulic transmission.

• Hydrostatic Transmission: Suitable for open and closed-loop hydraulic systems in excavators.

Advantages

• High Pressure Performance: Rated at 400 bar and capable of up to 450 bar peak, ideal for heavy-duty operations.

• Variable Displacement: Infinite adjustment from minimum to maximum displacement via swashplate design.

• Dual Control Options: Supports HA1, HD (hydraulic proportional), and HZ (two-point hydraulic) control modes.

• Durable Construction: Made from high-quality steel and cast iron for long service life.

• High-Speed Operation: Rated speed of 3900 rpm and maximum speed of 6150 rpm.

• ISO9001 Certified: Ensures reliable quality and manufacturing standards.

Specifications

Manufacturing Process

1. Material Selection: High-strength steel and cast iron for durability.

2. Precision Machining: CNC processing for tight tolerances.

3. Heat Treatment: Enhances hardness and wear resistance.

4. Sealing Test: Gas tightness test at 0.2 Mpa for over 3 minutes.

5. Surface Coating: Gray polyurethane resin, ≥30 μm thick, for corrosion resistance.

Usage Instructions

• Fill with 46# hydraulic oil before operation and check oil level.

• Ensure no air pockets in the system to prevent dry running.

• Maintain oil cleanliness (NAS ≤ 9).

• Avoid shock loads during operation and perform regular inspections.

After-Sales Service

• Warranty: 12 months (options for 3-6 months available).

• Technical Support: Installation and operational guidance.

• Spare Parts: Original replacement parts available.

• Repair Service: Professional support worldwide for rapid response.

FAQ

Q1: Is the A6VM80 compatible with Cat 320B and Kobelco SK excavators?
A1: Yes, it is specifically designed for these models’ main hydraulic pumps.

Q2: Can the pump be customized?
A2: Yes, OEM customization for mounting flange, oil ports, and coating is supported.

Q3: Recommended hydraulic oil type?
A3: Use 46# or 68# anti-wear hydraulic oil, keeping it clean.