EX55 Hitachi PVK-2B-505 Hydraulic Pump Assy For Excavator Main Pump

EX55 Hitachi PVK-2B-505 hydraulic pump assy for excavator main pump

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.

Belparts was established in September 2013, has a history of eleven years which is loed in Guangzhou.

Our main products are Excavator Hydraulic spare parts, Hydraulic main pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan motor and other hydraulic items with genuine and aftermarket quality.

Until now, our products enjoy a high reputation and have been exported to more than 125 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" which are widely acclaimed by foreign customers.

We could supply the rexroth hydraulic pump and motor, also the inner spare parts as below model:

1 A8VO: A8VO55,A8VO80,A8VO107,A8VO160

2,A2FO: A2FO5 A2FO10 A2F12 A2FO16 A2FO23,A2FO28,A2FO32,A2FO45,A2FO56,A2FO63 A2FO80
3,A4VSO: A4VSO40,A4VSO45,A4VSO56,A4VSO71,A4VSO125,A4VSO180,A4VSO250,A4VSO500,
4,A4VG: A4VG28,A4VG45,A4VG50,A4VG56,A4VG71,A4VG125,A4VG180,A4VG250
5,A6V: A6V55,A6V80,A6V107,A6V160,A6V225,A6V250
6,A7V: A7V16,A7V28,A7V55,A7V80,A7V107,A7V160,A7V200,A7V250
7,A8V: A8V55,A8V80,A8V107,A8V115,A8V172
8,A10VSO: A10VSO10,A10VSO18 A10VSO28,A10VSO43,A10VSO45,A10VSO71,A10VSO100,A10VSO140
9,A10VD: A10VD17,A10VD21,A10VD28,A10VD43,A10VD71
10,A11V: A11V50 A11V90 A11V130,A11V145 A11V160,A11V190,A11V250

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.

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.