Kawasaki hydraulic pump

This article is introduce the hydraulic pump assembly for excavators. Kawasaki hydraulic pump including korea manufacture and Japan factory.

1. Korea Kawasaki hydraulic pump use for excavator

Korea kawasaki hydraulic pump can instead of japan and KPM hydraulic pump when we repaired excavators. In many aftermarket , we can provide new/used/remanufacture/reproducing excavator hydraulic pump in stock as requirement of our custmer.

1. Operating principleof kasawasi hydraulic pumps in excavator hydraulic systerm.

The working principle is that the movement of the pump chamber volume changes, so that the fluid compression fluid pressure energy.Must have the condition that the pump chamber has sealed volume change.

Hydraulic pump drive shaft can not bear radial force and axial force, so it is not allowed to directly install the belt wheel, gear, sprocket at the shaft end, usually with a coupling connection drive shaft and pump drive shaft.If due to manufacturing reasons, the pump and the coupling coaxiality exceeds the limit, and there is a deviation in the assembly, then with the increase of the pump speed centrifugal force increase the coupling deformation, deformation and centrifugal force increase.

At present, a large number of hydraulic excavators are using swashplate variable axial piston pump.Two pumps are usually used, with a through shaft to connect the two plunger pump together, hydraulic also known as through shaft pump.Through shaft pump can also be connected with a small gear as a servo pump, can make the layout of the excavator greatly simplified.

2. According to the working principle of hydraulic pump, the type of hydraulic pump divisionFault analysisof Komatsu excavator final drive.

1）Plunger variable pump

KASAWASI K3VLS Swash Plate Axial Plunger Hydraulic Pump For Excavators

In order to meet the hydraulic system requirements of construction machinery and industrial vehicles, we have made the K3VLS Series Swash Plate Axial Plunger Hydraulic Pump For Excavators , It can suitable for mechanical equipment which Energy saving and low fuel consumption, save space layout.

加原POST内容

• Gear hydraulic pump

 This hydraulic pump has gears is use for construction machinery, such as bulldozer, excavator, loader,motor grader, roder roller.

• Vane hydraulic pump

This vane pump often fitting on enigne of construction engines, the brand is cummins, Komatsu, Caterpillar, Deutz, Kubota, Yanmar, Komatsu .

3. How to choose a correct excavator hydraulic pump?

When you send inquiry, please tell us detailed informations of your excavator and excavator hydraulic pump.

-Excavator model, if have equipment nameplate is the best.

–Excavator main pump model, if have nameplate of hydraulic pump is the best.

Provide data as following

4. Excavator brand we can replaced  

Hydraulic motors apply to kinds of models of heavy equipment brands，travel motors and swing motors can be replaced on most brands of excavators. Such as Bobcat, Case, Caterpillar, Daewoo, Doosan, Hitachi, Hyundai, IHI, JCB, KATO, Kobelco, Komatsu, Kubota, Neuson, New Holland, JCB, SUMITOMO, Takeuchi, VOLVO and Yanmar, Mitsubishi, Airman, Atlas Copco, Gehl, John Deere, Kubota, Liebherr, LiuGong, Lonking, Lovol, New Holland, Nissan, Pel Job, Rexroth, Samsung, Sany, Sandvik, Schaeff, SDLG, Sunward, Terex, Wacker , Wirtgen, Volvo, XCMG, XGMA, Yuchai, Zoomlion Excavators. OEM quality Travel Reducer and Travel Motor.

5. Excavator model we can supplied

– For Komatsu Excavator : PC20, PC30, PC25, PC18, PC30, PC40, PC55, PC50UR, PC60, PC75,PC78,PC90,PC100,PC110,PC120,PC130-6,PC140,PC150-5,PC160,PC180,PC200-6,PC220,PC210,PC230,PC240,PC260,PC280,PC300,PC320,PC360,PC380,PC400,PC420,PC450-7, PC650,PC650-8,PC710-5 PC1000-1,PC1250

– For Hitachi Excavator : EX25, EX30UR-2, EX35,EX40, EX45UU, EX50, EX60, EX75, EX90, EX100, EX55, EX120, EX160-1, EX200-2, EX210-5, EX220-6, EX270 UH07-7O/N, UH55,EX330, EX320-3 EX360,EX400, ZAXIS55, ZAXIS60, ZAXIS90, ZAXIS70, ZAXIS100-1, ZAXIS110-2,ZAXIS120,ZAXIS160,ZAXIS200-1,ZAXIS210,ZAXIS230,ZAXIS230-5,ZAXIS240 ZAXIS330,ZAXIS360,ZAXIS450

– For Kato Excavator  : HD250SE-2, HD250-5/7, HD300GS, HD307, HD350, HD400G, KD400SE-2,HD400SEN2,HD400-5/7,HD450-5/7,HD510,HD512,HD550-5/7,HD700-2/5, HD700-7, HD770-1, HD770-2, HD800-5, HD800-7, HD820-1/2/3 ,HD880, HD850, HD900-5/7, HD1023, HD1220SE-2, HD1250-5, HD1430, HD1880-7, HD900-7, HD1880

– For Kobelco Excavator : K30, SK45, SK80, K903, K904, K904B, K907B, K907C, K907D, SK50, SK120, SK60, SK75UR, SK07, SK027, SK04N2, SK07N2, SK09, SK100, SK200, SK200-5, SK200-6, SK120-3, SK120-6 , SK120LC, SK210, SK220, SK380, SK310, SK450, SK230, SK260, SK280 , SK250, SK07-N2, SK320, SK330, SK360, SK330-6, SK330-8, SK210-8, SK230-6E, SK250-6, SK250-8, SK450-6, SK450-8, SK480-6

– For Sumitomo Excavator : SH55, SH60, SH75, SH90, SH100, SH120-1/2/3/5,SH160, SH180,SH200-1/A3,SH220,SH300-2,LS2650FJ-2,LS2800CJ/DJ/EJ/FJ-2,LS2800FJ2,LS2800F2 LS3400EA LS3400FJ LS5800FJ, LS4300FJ2, LS5800C2, SC800,SC1000

– For Doosan/Daewoo Excavator : Solar S55 DH55-5, S60, SOLAR 130, SOLAR140,SOLAR160, DH220-2, DH220-3, DH220-5, DH220-9E, DH225-7 DH280-3, DH320, DH320-2/3, DH450, DH130-7, DH280, DH330, DH360-5

– For Volvo Excavator : EC55, EC60, EC70, EC75, EC90, EC110, EC120, EC130 ,EC160, EC210B, EC240B, EC240B, EC260B, EC280, EC290B, EC320, EC360B, EC380, EC420, EC460B

– For Caterpillar CAT Excavator : E235-B, E235-D, E245-B, E245-D, E307, E311B, E312C, E312CL, E315C, E315CL, E318B, E320, E320L, E322, E325, E330, E350, E375, E450

– For Yanmar Excavator : B50-, B5X,B6-3, B6U,B7-3, B7U, SV05, SV08 , SV13, SV15, SV08-1, Vio10, Vio15, Vio20, Vio75, VIO85, VIO90, VIO50, VIO57, VIO45-2, VIO35, VIO55

– For Kubota Excavator : MX331, MX337, MX341, E50, E32, E35, E43, E80, MX325, MX328, MX334, MX430, E26, E62, E45, E38, MXE32

– For IHI Excavator :  IHI25, IHI35, IHI45, IHI55, IHI60, IHI80, IHI75, IHI100, IHI120,  IHI140, IHI160, IHI175, IHI185

7. Excavator hydraulic manufacture and supplier

1) . KYB KAYABA hydraulic pump  :

KYB product is a walking device integrating motor and reducer. It is composed of double displacement axial plunger motor and walking reducer. The motor has built-in anti-reverse valve, parking brake device and advanced two-gear conversion device, which is characterized by: large transmission ratio range, compact structure, high work efficiency, strong reliability, small volume, smooth operation, low noise;At the same time has the multistage security protection, the service life is long and so on the characteristic.Suitable for hydraulic crawler driving device.

2 ) Nachi hydraulic pump

– Mining engineering machinery, with its harsh working environment, the hydraulic system and the components of the system’s performance requirements are very high.Especially the hydraulic driving device, often bear a large torque in the work, which requires the output of high torque of the hydraulic motor, so in mining machinery hydraulic driving device needs to bear a large torque, to ensure the use of the product.

– Coal mine construction machinery, the usual working environment is very harsh, so it is easy to make the cleanliness of the hydraulic system is polluted.However, for the hydraulic system, hydraulic oil is no doubt like human blood, need higher cleanliness requirements, do not allow pollutants.For hydraulic components, the internal components have higher precision, some of the hydraulic cleanliness requirements are also very high.At present, equipment such as crawler walking slag raking machine, coal machine and drilling machine that are engaged in roadway operation often encounter no power input due to the failure of the main engine, which causes relatively large economic losses.

Motor : PHV-1B,PHV-2B,PHV-3B,PHV-4B-60B-P-9067A,PHV-390

• Bosch Rexroth hydraulic pump

– With the development of highway construction and urban construction in China, building and road maintenance equipment has been widely used. Hydraulic motors are not only widely used in construction machinery equipment, but also in road construction equipment and road maintenance equipment.The crawler spreader and the ground planer are widely used in road construction.In road-building and maintenance equipment, such as asphalt pavements, which require higher temperatures, the hydraulic motor is required to withstand higher temperatures and maintain a higher output efficiency at high temperatures.

– Piling machinery mainly refers to the machinery used for drilling, piling and piling during foundation construction.The main characteristics of this equipment is strong professional, production volume is small.The mechanical hydraulic system of pile works usually has higher pressure. This kind of equipment is mostly hydraulic driven, so as to ensure stable construction.Due to its particularity and relatively poor working environment, pile machinery needs a large torque output and a large reduction ratio structure hydraulic drive device.

6. Which parameter we can get from nameplate ?

– Inlet flow

– Displacement

– Max working pressue  

– Reduction Ratio 

– Max output speed and torque

8.Conclusion

With the high-speed development of engineering machinery, hydraulic system relies on imported accessories conditions be effectively improved, many manufacturers can offer replace imported excavator hydraulic motor assembly and repair parts, we are willing to do the connecting link between manufacturers and customers, to provide correct and high quality products, with professional knowledge and high efficient and accurate delivery speed services to customers at home and abroad. We have speciality engineer service to you around 24 hours, We can quotes and provide technical support online, Supply corresponding drawing and technical parameter to you, waiting your inquiry in further time.