Rexroth AP2D18 hydraulic pump assy for mini excavator hydraulic pump

The hydraulic pump of an excavator is the core component of the hydraulic system, providing power to the entire system like a heart. It converts the mechanical energy of the engine into hydraulic energy, drives the hydraulic cylinder and hydraulic motor to work, and thus completes various actions of the excavator.

Two types

Gear pump: With a simple structure, low cost, and strong anti pollution ability, but with large flow pulsation and high noise, it is mostly used in small excavators or auxiliary systems.

Piston pump: with complex structure and high cost, but high working pressure, large flow rate, high efficiency, and high control accuracy, it is widely used in medium and large excavators.

Working principle

Oil suction process: The plunger moves backwards, the pump chamber volume increases, forming a vacuum, and the hydraulic oil in the oil tank enters the pump chamber under atmospheric pressure.

Oil pressure process: The plunger moves forward, the pump chamber volume decreases, the hydraulic oil is compressed, the pressure increases, the oil outlet valve is pushed open, and high-pressure oil enters the hydraulic system.

performance parameter

Displacement: The volume of oil discharged by the pump shaft per revolution determines the working speed and force of the excavator.

Pressure: The pressure of the oil at the pump outlet determines the working capacity of the excavator.

Rotational speed: The rotational speed of the pump shaft affects the flow rate and lifespan of the pump.

Efficiency: The ratio of output power to input power of a pump, reflecting energy loss.

Mainly engaged in excavator hydraulic pumps, final drive, travel motors, swing motors, distribution valves,control valve assy,reduction gearbox,cylinder assy and various hydraulic spare parts.

Excavator hydraulic one-stop service, we can provide Komatsu, Hitachi, Kato, Doosan, Hyundai, Sany, Liugong, Sunward Intelligent, hydraulic pumps of various tonnage models, distribution valves, travel assemblies, travel motors, swing motors and hydraulic spare parts.

If you are interested in any models, please tell us the OEM model code, and we can check the prices for you very soon.

Other models also available:

PVD-1B-32CP-9AG5

PVD-1B-32CP-8AG5

PVD-1B-32CP-11G5

PVD-1B-24BP-8AG5

PVD-1B-31BP-8AG5

PVD-1B-32BP-12G5

PVD-0B-16BP-6AG4

PVD-0B-18B-5

PVD-1B-34P-11G5

PVD-0B-18P-6G3

PVD-00B-14P-5G3

PVD-00B-15P-5AG3

PVD-00B-16P-6AG3

PVD-0B-24P-11AG5

PVD-0B-24P-8G3

PVD-0B-24P-6G3

PVD-0B-12P-5G

PVD-0B-21P-6G3

PVD-1B-25P-8G5

PVD-1B-28P-8AG4

PVD-00B-18P-6AG4

PVD-0B-19P-6G3

PVD-0B-17P-6G3

PVD-1B-32P-11G5

PVD-15B-32P-9AG5

PVD-15B-37P-11G5

PVD-1B-32P-G8

PVD-0B-24P-G3

PVD-00B-11-3PVD-00B-14P

PVD-00B-16P

PVD-0B-16BP-6AG4

PVD-0B-18P-6G3

PVD-0B-24P-6G3

PVD-1B-32P-11G5

PVD-2B-40P-16G5

PVD-2B-42P-14G

PVD-3B-56P-18G5

PVK-2B-505

PSVD2-21EPSVL-54CG

PSVL-42CGPSVL-84

AP2D18

AP2D18

AP2D18

A10V018

A10VO18

AP2D28

AP2D36

DVP14-04S5

FAQ:

1. If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.
2. What is the warranty of the parts after I purchased?
The warranty is 6/12 Months based on the item details.
3. How can I pay the order?
We can receive payment through T/T, Paypal(for small amount), trade assurance.
4. When will get the items after I place order?
Once your payment is confirmed, we will arrange the goods within 24 hours; if not in stock , we will inform you before placing the order.
5. How can I do if there is something wrong with the items?
First of all , I have confidence in the quality of our products ,if you really found something wrong ,pls provide pictures for us and we will check. After it is confirmed, pls return to us , we will offer the correct item.
6. What is your main products ?
We are specialized in the excavator spare parts, such as travel motor gearbox/ass’y/parts, swing gearbox/ass’y/motor/parts, hydraulic pump assy/parts and gear parts. If you need other excavator parts, we also can supply as your requirements.