KC-A4VSO40-56 Rexroth series Pump Construction Machinery

A4VSO is an axial piston variable pump . It is suitable for hydraulic systems with open circuits and is widely used in industries such as industrial and construction machinery. Its displacement is 40cc/rev, the rated pressure can reach 350 bar (35MPa), the peak pressure is 400 bar (40MPa), and the maximum speed can reach 2600 rpm.

Inquire Now Next Prodcut

Advantages

Energy - efficient: It can dynamically adjust the flow according to system requirements through various control methods (such as pressure compensation and load sensing). Compared with fixed - displacement pumps, it has significant energy - saving effects, and energy consumption can be reduced by 15% - 25%.

High - pressure stability: It can stably output under high pressure, with strong power, easily cope with heavy - load working conditions, and ensure the stable operation of equipment.

Low - noise operation: The optimized design reduces pressure pulsation, and the operation noise is low. Generally, the operation noise is ≤70dB(A), creating a relatively quiet working environment.

Durable and reliable: The key components are made of high - strength materials and processed by special processes, with strong wear - resistance and pollution - resistance, long service life, and reduced equipment maintenance frequency and cost.

Diverse control: It has a variety of control modes, such as pressure control (DR), flow control (FR), hyperbolic power control (LR), manual control (MA), and electric motor control (EM), which can adapt to different system requirements and facilitate system integration and regulation.

Compact structure: Small size and light weight, with low installation space requirements, convenient for installation and layout in various equipment.

Technical Data

Type	Displacement(cm³/rev)	Rated Pressure (MPa)	Maximum Pressure (MPa)	Rated Speed (rpm)	Maximum Speed (rpm)
A4VSO40	40	35	40	1800	3000
A4VSO45	45	35	40	2800	3600
A4VSO56	56	35	40	2500	3400

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).