KC-A4VG355-500 Rexroth series Pump Construction Machinery

A4VG is a swash plate type axial piston variable pump manufactured . It adopts a swash plate structure and can flexibly adjust the output flow by changing the angle of the swash plate. It is commonly used in high-power hydraulic systems of large construction machinery, mining equipment, and ships. In scenarios with high-pressure and large-displacement requirements, it provides strong power support for the stable operation of equipment.

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Advantages

High Power Density: Compact structure, capable of delivering high power per unit volume, suitable for equipment with limited space but high power requirements.

Excellent High-Pressure Performance: Specifically designed for high-pressure working conditions, it can stably handle severe working pressures and ensure the reliable operation of the system.

Diverse Control Modes: Supports multiple control methods, allowing for precise adjustment of flow and pressure according to different working conditions and equipment needs.

Long Service Life & Low Maintenance: Critical components are processed by special technologies, featuring wear resistance and pollution resistance, which extends the service life and reduces maintenance frequency.

Technical Data

Type	Displacement(cm³/rev)	Rated Pressure (MPa)	Maximum Pressure (MPa)	Rated Speed (rpm)	Maximum Speed (rpm)
A4VG355	355	400	450	1,800	2,500
A4VG500	500	400	450	1,800	2,200

FAQ

How do you ensure product reliability without in-house production?

We hold ISO 9001/TS 16949 certifications and have over 15 years of hydraulic manufacturing experience. Each batch undergoes a 5-stage quality verification, including pressure cycle testing and material composition analysis.
How to handle component failures during the warranty period?

We offer a 12-month limited warranty (covering manufacturing defects). Simply send a diagnostic video via our platform, and our engineers will confirm repair/replacement solutions online.
Can technical drawings be provided for custom projects?

After confirming the deposit, engineering schematics can be shared under an NDA. Our advanced production system shortens lead times by 30% compared to traditional suppliers.
What is the minimum order quantity (MOQ) for hydraulic valves?

Standard models have a flexible MOQ of 50 pieces. Sample orders start from 20 pieces.
How to handle urgent breakdowns?

Our national partners stock critical spare parts in 6 regional centers, with priority delivery services available at major ports.
What are the payment terms for new customers?

A 50% T/T advance payment is required for the first transaction. Payment terms can be further discussed after three consecutive successful deliveries.
Are certification documents available?

Each shipment includes CE/ISO/REACH certificates. Special certifications (e.g., ATEX) require 45 days' prior notice.
Can you provide samples?

Yes. We can supply samples for your testing and verification needs. For sample requests, please inform us of the specific product model, quantity, and any special requirements. We’ll communicate details like sample preparation time, shipping arrangements, and relevant costs (e.g., sample production fees, logistics charges; partial costs may be negotiable under certain conditions).