A4VG90 56/71/90

Product characteristic:
Walks the machinery to use the hydraulic element;
The slanting disk axial plunger variable displacement pump, is suitable in walks machinery's closed return route hydraulic pressure actuation;
Hydraulic pump's current capacity in proportion to pump's rotational speed and displacement;
May through adjust the slanting disk angle to implement the stepless variable;
When slanting disk pivot angle after zero position, the liquid flow commutation is steady;
The high-tension side two overflow valve safeguarding hydraulic element [pump and motor] do not overload;
The built-in donkey pump achievement makes up the oil and the check oil pump;
Through built-in makes up the oil-overflow valve limit to make up the oil pressure most greatly;
The fixed working pressure may achieve 40MPa;
Selects the long life, the high accuracy bearing;
Selects the Parker seal;