Axial Piston Variable Pump-close Circuit, K4VSG
Axial Piston Variable Pump-close Circuit, K4VSG Axial Piston Variable Pump-close Circuit, K4VSG Axial Piston Variable Pump-close Circuit, K4VSG

K4VSG (Replacement for A4VSG Series 10&22)Replacement hydraulic pump for A4VSG series 10&22 axial piston variable pump

  • Robust high pressure pump for industrial applications
  • size: 40-1000
  • Nominal pressure 350bar
  • Peak pressure 400bar
  • Closed circuit
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Features
  • Low-noise
  • Long service life
  • Drive shaft capable of absorbing axial and radial loads
  • High power/weight ratio
  • Modular design
  • Short control times
  • Through drive for mounting additional pumps
  • Swivel angle indicator
  • Optional mounting location
  • Operation on HF fluids possible with reduced operating parameters
Technical Parameters
Size 40 71 125 180 250 355 500 750 1000
Displacement Vg max cm³ 40 71 125 180 250 355 500 750 1000
Max. speed nmax rpm 3700 3200 2600 2400 2200 2000 1800 1600 1600
Max. speed at nmax Qmax L/min 148 227 325 432 550 710 900 1200 1600
at nE=1500rpm L/min 60 107 186 270 375 533 750 1125 1500
Max. power (Δp = 350 bar) at no max Po max kW 86 132 190 252 321 414 525 700 933
at nE=1500rpm kW 35 62 109 158 219 311 438 656 875
Max. torque (Δp = 100 bar) at Vg max Tmax Nm 223 395 696 1002 1391 1976 2783 4174 5565
Torque (Δp = 100 bar) at Vg max T Nm 64 113 199 286 398 564 795 1193 1590
Torque (Δp = 100 bar) J kgm2 0,0049 0,0121 0,03 0,055 0,0959 0,19 0,3325 0,66 1,20
Filling volume L 2 2,5 5 4 10 8 14 19 27
Weight (Approx.,pump with EO1 control and valve block) m kg 47 60 100 114 214 237 350 500 630
Max. axial force ±Fax max N 600 800 1000 1400 1800 2000 2000 2200 2200
Max. radial force Fq max N 1000 1200 1600 2000 2000 2200 2500 3000 3500
Description

The K4VSG is an axial piston variable pump with axial piston rotary group in swashplate design for hydrostatic drives in closed circuits. The flow of the variable displacement pump is proportional to the drive speed and displacement, which can be steplessly changed by adjusting the cradle. The pistons are axially arranged to the drive shaft in its axial piston unit with swashplate design. Hydraulic fluid flows from the hydraulic pump to the motor and directly back to the pump in a closed circuit. The series is mainly used in tunnel boring machine, mining machines, ceramic press, metallurgy and other industries.

Applications
  • Tunnel boring machineTunnel boring machine
  • Mining machineMining machine
  • Ceramic pressCeramic press
  • MetallurgyMetallurgy
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Guangdong KEDA Hydraulic Technology Co., Ltd. is an industry leader in producing high-pressure piston pumps and high-speed motors, leveraging our core technology to provide superior technical solutions for customers worldwide. Our products including hydraulic pumps, hydraulic motors and hydraulic spare parts are used across a wide range of industries, including metallurgy, forging, TBM, building materials, pile drivers, mobile machinery, and marine engineering. We have domestic and international sales and service bases to ensure fast and satisfactory services for all our customers. As part of KEDA Industrial Group Co., Ltd. (stock code 600499), we strive to offer innovative solutions that exceed expectations every time.

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