A4VG56 Rexroth Series A4VG28 A4VG40 A4VG45 A4VG56 A4VG71 A4VG90 Hydraulic Piston Variable Pump

A4VG Variable Displacement Axial Piston Pump of swash plate design for hydrostatic closed circuit transmissions. Flow is proportional to drive speed and displacement and is infinitely variable. Output flow increases with swivel angle from 0 to its maximum value.

* Variableaxial piston pump of swashplate design for hydro- static drives in closed
* The flow is proportional to the drive speed and
* Theflow can be infinitely varied by adjusting the swashplate angle.
* Flow direction changes smoothly when the swashplateis moved through the neutral
* A wide range of highly adaptable control devices with differentcontrol and regulating functions, for all important
appliCATEEEEEEions.
* Two pressure-relief valves are provided on the high-pressure side to protect the hydrostatic transmission (pump and mo- tor) from
* The high-pressure relief valves also function as boost
* The integrated boost pump acts as a feed pump and control pressure
* Themaximum boost pressure is limited by a built-in low- pressure relief
* As standard with integrated pressurecut-off

A4VG56 Rexroth Series A4VG28 A4VG40 A4VG45 A4VG56 A4VG71 A4VG90 Hydraulic Piston Variable Pump

Variable displacement axial piston pump Characteristics
▶ Integrated auxiliary pump for the cooking and pilot oil supply
▶ Change in flow direction when adjusting the
Swashplate through the zero position
▶ High-pressure relief valves with integrated feed function
▶ With adjustable pressure cut-off as standard
▶ Boost pressure relief valve
▶ Through drive for attaching additional pumps of the same type
Nominal size
▶ Variety of adjustments
▶ Swash plate design

Rexroth Hydraulic Pump Model SpecifiCATEEEEEEion

Koko Shop Machine Co.,Ltd (Huilian Machinery) found in 2011, is a professional supplier who is specializd in construction machinery parts for excavator and attachments, including Hydraulic Hammer, Hydraulic Breaker Spare Parts, Quick Coupler, Hydraulic Grab, Ripper, Vibrator, etc. And, Excavator parts Engine, Hydraulic Pump, Swing motor, Travel motor, Main control Valve, Swivel Joint, Hydraulic seal kit. After 12 years developments, Huilian Machinery factory make quality parts with it's advance technology and advance machines. Hydraulic Breaker Parts suitable for: Atlas copco, Soosan, Furukawa, Atlas Copco, Alpha, Bretec, BTI, CATEEEEEE, CP, Daemo, DMB, Alicon, D&A, Doosan, EDT, Epiroc, Everdigm, Fine, Furukawa, General GB, Hammeroc HR, Hyundai HDB, Indeco HP MES, JCB, Kent, KCB, Komac, Komatsu JTHB, JKHB, Korota, Krupp, Kwanglim, Konan, Montabert, MSB, MTB, Noah, NPK, Okada, OKB, Omal, Poqutec, Powerking, Promove, Rammer, RB Hammer, RBI, Rhino, , Soosan, Stanley, Teisaku, T&H, Toku, Toyo, UBTECH, ECand so on. Hydraulic Excavator Parts suitable for: Komatsu, Hitachi, EC, Hyundai, Kobelco, Sumitomo, Kato, Doosan, JCB, cx, Sany, Liugong, XCMG, Xugong, Zoomlion, etc. OEM and ODM service offered.

In order to meet different customers' needs, Huilian Machinery also purchases Genuine Parts from German, Japan, Korea. And we established a long-term business relationship with customers from all over the world, like: U S A, Mexico, Saudi Arabia Kenya, Algeria, UAE, Russia, Morocco, etc. In 2023, Huilian Machinery became Distributors of easywork engineering machinery (SANY Group) in Russia and indonesia.

Koko Shop Machine is continuously seeking the chances to meet all the friends both from home and abroad for win-win cooperation.

And we believe that quality parts will take us to a further place. Let’s build a better tomorrow, together!

Introduction to Koko Shop Company

CertifiCATEEEEions

Enteprise Honor

Service Brand

Our Factory

Koko Shop Machine Management Department is an important control method for processing quality. It equipped with the most advanced inspection equipments The professional control devices,it can provide accurate reference data to choose the most suitable material and accessories, which also effectively control parts quality. Besides, it also provides digital information for engineers and quality controller to determine feasibility for spare parts after processing. This is the working processing of quality control.

Chooing steady quality supplier. After purchasing raw material, duing testing if it is proved well, then we will arrange these eligible matrial that come into warehouse.

When the spare parts finish and come into testing working conditon. Every worker will be responsible for their spare parts. They will give out fact testing date and results. After proving testing date is accord with delivery standard. Then Koko Shop Machine Quality Management Department will allow these spare parts that go to packing department and packing.

Before delivery, Koko Shop Machine Quality Management Department should check all mark and packing conditon. If it is prove it is accord with exporting standard and customer's requirement. Then they will allow these equipment come into fininshed product area.

Of course Koko Shop Machine Quality Management Department have the right to make sample testing for every production step to make sure product quality.