Permco 257 series are medium frame, heavy-duty, sleeve-bushing design gear pumps and motors.
They have a doweled and high strength cast iron construction, with high strength alloy steel gear and shaft sets. Pressure-balanced wear plates maintain efficiency throughout all operating ranges.
Typical applications include: big winches, cranes, mobile crushers and screens.
They are available in 9 different gear sizes with displacements ranging from 21 cc/rev to 104.88 cc/rev. Working pressures range from 172 bar to 241 bar; speeds are up to a maximum 2400 rpm.
Contact us for further technical details and configuration options.