R902245413 R902155983 Electric Hydraulic Closed Circuit Pumps for High Pressure Needs
Basic Info.
After-sales Service
Free Warranty
Structure
Axial Plunger Pump
Cylinder Number
Single Cylinder
Drive Mode
Mechanically Driven Pump
Pump Shaft Position
Horizontal
Straight Shaft Swashplate Piston Type
Pressureoil
Radial Plunger Pump Type
Valve with Flow
A4vtg071hw100/33mrnc4V81f0000as-0
A4vtg071hw100/33mrnc4V82f0000as-0
A4vtg071hw100/33mrnc4V82f0000as-0
A4vtg071hw100/33mrnc4V82fb2s4as-0
A4vtg071hw100/33mrnc4V82fb3s4as-0
A4vtg071hw10m/33mrnc4V81f0000as-S
A4vtg071hw10m/33mrnc4V82f0000as-S
A4vtg071hw10t/33mrnc4c82fa2s2as-0
A4vtg071hw10t/33mrnc4V82fb2s4as-0
R902150567
Transport Package
Wooden Box
Product Description
Technical data Series 33. Sizes NG71, 90. Nominal pressure 400 bar. Maximum pressure 450 bar. Closed circuit. For the drum drive in mobile concrete mixers. Features --Variable axial piston pump of swashplate design for hydrostatic drives in closed circuit --The flow is proportional to the drive speed and displacement. --The flow increases as the angle of the swashplate is adjusted from zero to its maximum value. --Flow direction changes smoothly when the swashplate is moved through the neutral position. --Two pressure-relief valves are provided on the high pressure ports to protect the hydrostatic transmission (pump and motor) from overload. --The high-pressure relief valves also function as boost valves. --The integrated boost pump acts as a feed pump and control pressure supply. --The maximum boost pressure is limited by a built-in boost pressure-relief valve. Table of values Size | NG | 71 | 90 |
Displacement | variable pump | Vg max | cm3 | 71 | 90 |
boost pump (at p = 20 bar) | Vg Sp | cm3 | 20.5 27 |
Speed | at Vg max | nnom | rpm | 3300 | 3050 |
minimum | nmin | rpm | 500 | 500 |
Flow at nnom H and Vg max | qv max | l/min | 234 | 275 |
Power1) at nnom H, Vg max Dp = 400 bar | Pmax | kW | 156 | 183 |
Torque1) at Vg max and | Dp = 400 bar | Tmax | Nm | 452 | 573 |
Dp = 100 bar | T | Nm | 113 | 143 |
Rotary stiffness | drive shaft V8 | c | Nm/rad | 120900 | - |
drive shaft V9 | c | Nm/rad | - | 150896 |
Moment of inertia for rotary group | JGR | kgm2 | 0.0097 | 0.0149 |
Maximum angular acceleration | a | rad/s2 | 21000 | 18000 |
Filling capacity | V | L | 1.3 | 1.2 |
Mass approx. (without through drive) | m | kg | 51 | 53 |
