Crosshead and crosshead guide are made of ASTM A48-83 meehanite featuring good abrasion resistance and long service life. Besides F-500 mud pump that is cylinderical structure,upper and lower guide structures are used for other mud pumps, so that the concentricity can be adjusted by adding space under the lower guide.
Flange-bolts with pinhole fit are used for connecting crosshead to extention rod.This rigid connection ensures the concentricity of the extention rod and crosshead.Coupling is used for connecting extension rod to crosshead. Light coupling enables the extension rod and the crosshead to connect to each orher with ease and reliableness.