What is the difference between the MD and WMD version?
Hydraulically the MD and MWD series are identical. They both use the same high quality precision injection molded Iwaki pump end, the only difference is in the motors. The WMD series use domestically manufactured motors and a modeled adaptor between the pump end and the motor. The motors are rolled steel construction and the entire assembly is approximately 3″ longer than the equivalent MD. The MD designs use motors manufactured in Japan. They are aluminum cast construction and the pump end adaptor bracket is cast into the end of the motor. This results in the overall shorter length of the MD design.