RX series
Radial piston pumps with variable flow rate 

RV series
Radial piston pumps with variable flow rate

RF series
Radial piston pumps with constant flow rate

RH series
Radial piston pumps with constant flow rate


4949 Urbana Road Rear    
Springfield OH, 45502

Tel  (937) 390-2100
Fax (937) 390-9715
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Oil Hydraulics

Hydraulic oil provides power density, high dynamics & force transfer in a compact and efficient design.

Wepuko hydraulic pumps have been providing reliable and durable service for more than 80 years.  Our pumps with variable as well as constant flow rates are designed to perform under high pressure between 30,000 psi and 42,000 psi in normal conditions and up to 100,000 psi in special applications.

We also offer complete custom solutions for our customers from small units to large hydraulic systems up to 40,000 hp of installed capacity.

Learn more:

> Oil hydraulic products
> Oil hydraulic applications
> Oil hydraulic industries

Wepuko PAHNKE’s PMSD drive

PMSD stands for PAHNKE Modified Sinusoidal Direct drive. This is a design developed by PAHNKE Engineering in accordance with plans from Hans-Joachim Pahnke.

This drive does not require any valves for the control of the press movement. The RX-series high-pressure pumps are able to determine the force, speed and direction in a fast, smooth (shock free) and efficient manner. These pumps are extremely reliable and will perform flawlessly for at least 30,000 hours. Some of our customers have logged more than 50,000 hours of operation without needing any repairs!

Energy savings of approximately 25% vs. any other drive system of comparable drive system is achieved as a result of this brilliant design. All of our new presses are equipped with hydraulic drives that are designed and manufactured in accordance with the PMSD principle.

16-pump PMSD drive of an 8,000/10,000 ton press.