CZPT CZPT pump A4VTG71 from china for use in roller

Concrete mixer hydraulic piston pump A4VTG71, A4VGT90

Closed circuit
Collection 32
Dimensions 71, ninety
Nominal strain 5800 psi (400 bar)
Greatest stress 6500 psi (450 bar)
Manage device: (HW) Proportional control hydraulic, mechanical servo, hexagon shaft with lever to the rear.
(EP) Proportional control electrical, with unexpected emergency actuation and spring return.
 
For the drum travel in mobile concrete mixers A4VTG071, A4VGT090 sequence.
-Variable axial piston pump of swash plate design and style for hydrostatic drives in shut circuit
-The circulation is proportional to the push speed and displacement.
-The circulation raises as the angle of the swash plate is modified from zero to its maximum benefit.
-Movement route adjustments easily when the swash plate is moved through the neutral placement.
-Two pressure-reduction valves are provided on the high stress ports to safeguard the hydrostatic transmission (pump and motor) from overload.
-The large-force aid valves also function as improve valves.
-The built-in improve pump acts as a feed pump and management force source.
-The optimum enhance force is limited by a built-in boost pressure-relief valve.
-Tapered shaft option for immediate generate shaft yoke set up.
 
Technical Data 
Table of values (theoretical values, without effectiveness and tolerances values rounded)