A4vg56 Charge Pump for Rexroth A4vg Series Axial Variable Piston Pump

• After-sales Service: 365 Days
• Warranty: 365 Days
• Type: Excavator
• Model NO.: A4VG56
• Condition: New
• Transport Package: 18*14*13
• Specification: 2.4KG
• Origin: China
• Production Capacity: 10000

Product Description

A4VG56 charge pump for Rexroth A4VG series axial variable piston pump 

Product Description

Rexroth A4VG56 charge pump product introduction
--"Heart Guardian" of closed hydraulic system

Core positioning
The A4VG56 charge pump is the core auxiliary unit of Rexroth closed hydraulic system, specially designed for A4VG56 series axial variable piston pump, and undertakes the three key missions of system pressure maintenance, oil supply control, and thermal balance management.

Product ID card

Item Technical parameters
Model A4VG56 matching oil replenishment pump (including EP/HD and other derivative models)
Type External gear pump
Rated displacement 16ml/r (different versions ±2ml)
Oil replenishment pressure 1.8-2.2MPa (adjustable relief valve setting)
Flow output 25-30L/min@1500rpm
Adaptive oil temperature 30-80ºC (optimal working range)
Filtration requirements β≥75 (ISO 4406 18/15/12)

Three core functions

1. Dynamic pressure maintenance system
Real-time compensation for leakage loss in the main circuit (about 3-5% system flow)

Prevent cavitation caused by main pump suction (pressure maintenance ≥1.5MPa)

2. Control oil supply station
Provide stable pilot pressure (1.8-2.2MPa) for variable mechanism

Ensure displacement adjustment response time <200ms

3. System health manager
Continuous filtration of 3-5% system flow through flushing valve

Oil temperature control: removes 60-80% of ineffective heat

Typical application scenarios

Engineering machinery field
Rotary drilling rig:  SR405 main winch closed system

Pump truck: Zoomlion 63m boom slewing mechanism

Crane:  XCA1800 variable amplitude hydraulic circuit

Special equipment field
Shield machine: China Railway Construction Heavy Industry Earth Pressure Balance Shield Propulsion System

Marine machinery: Deck crane closed slewing drive

Industrial hydraulic field
Continuous casting machine: Baosteel 2050 hot rolling line roll pressing system

Test bench: Hydraulic component durability test platform

If you need more spare parts, different model of piston or other spare parts, please contact our customer service staff, you will get more discount, please contact us, thanks

We offer original and replacement Rexroth piston pumps and pump replacement parts.

Rexroth series piston pumps model:

1. A8VO55, A8VO80, A8VO107, A8VO160

2. A2FO5, A2FO10, A2FO12, A2FO16, A2FO23,A2FO28, A2FO32, A2FO45, A2FO56, A2FO63, A2FO80

3. A4VSO40, A4VSO45, A4VSO56, A4VSO71, A4VSO125, A4VSO180, A4VSO250

4. A4VG28, A4VG45, A4VG50, A4VG56, A4VG71, A4VG125, A4VG180, A4VG250

5. A6V55, A6V80, A6V107, A6V160, A6V225, A6V250

6. A7V16, A7V28, A7V55, A7V80, A7V107, A7V160, A7V200, A7V250

7. A8V55, A8V80, A8V107, A8V115, A8V172

8. A10VSO10, A10VSO18, A10VSO28, A10VSO43, A10VSO45, A10VSO71, A10VSO100, A10VSO140

Spare parts for hydraulic piston pump:
1 Koma tsu
2 HITACHI
3 CA T
4 KAYABA
5-LIEBHERR
6 KAWASAKI
7 REXROTH
8 UCHIDA
9 SAUER
10 LINDE
11 PARKER
12 NACHI

Dear buyer, if you think the cost is not suitable after joining the shopping cart, please contact us. We will adjust the rate according to your situation. Please don't worry about any problems. We guarantee product quality and after-sales service. Our products are compatible with wholesale, we offer more discounts if you order 2 sets or more. Contact us, thank you very much!
Dear buyer, Thank you for choosing our products. Light up 5 stars for us. Thank you! If you are not satisfied, please feel free to contact us at any time.

 

 

Specification

Model Number	A4VG56	Origin	Mainland China
Structure		Standard	intemationaI standard
AppIication	pump repair	MatteriaI	SpeeciaI metaIs,aIIoys,cast iron

product detail drawing

 

 

 

 

 

 

Company Profile

Hebei Keluo Construction Machinery Co., Ltd. is a manufacturer and distributor specializing in the production and sale of hydraulic components, which are widely used in engineering construction, agriculture, ocean, mining and other fields. All products are of high quality. Including hydraulic pumps, hydraulic motors, pump accessories, motor accessories, hydraulic valves, steering devices, etc.

The main business scope includes sales and maintenance of hydraulic pumps, hydraulic motors, hydraulic valves, internal spare parts and other hydraulic components of brands such as Rexroth, Parker, Vickers, Yuken, Atos, Eaton, and Sauer; at the same time, Elephant Fluid Power can independently develop, design, transform and customize various types of hydraulic pumps and hydraulic systems, and provide hydraulic technical support; currently developed and produced A4VS0, A4FO, A4FM, A10VSO, A11VO (LO), A20VLO, PV, PVH, PVXS and other series of hydraulic pumps, hydraulic motors and hydraulic valves, other series of products are also under development and design. Hebei Keluo Construction Machinery Co., Ltd. adheres to the service concept of "customer first, quality first", strictly implements product quality inspection standards, and strives to be a hydraulic company worthy of customer trust.

Certifications

FAQ
Q: What is your delivery time?
A: The delivery time is within 15 working days.

Q: What is the payment term?
A: Normally we accept 30% deposit by TT for production, 70% balance by TT before shipping.

Q: What color can I choose?
A: We can customize the color according to your color number.

Q: Can I see the production progress after order?
A: Yes, during production, we can make video call and we could take photos/videos for your reference.

Q: What kind of service can I get from you if I buy? How can I get parts?
A: We have 1 year warranty for each machine.Within 1 year warranty, if any parts failure caused by quality issues, the new parts would be sent to you free of charge within 5 working days. We have professional after sales department to support for you at any time.