crosshead head、crosshead pin、extension rod

The crosshead is made of high quality alloy steel QT700-3 materials, processing method by a specific process, make its deformation, and carry on the strict heat treatment and machining, the tolerance size control strictly, ensure easy installation, and other parts;In addition, on the surface of the work that they spray wear-resisting, corrosion resistant ceramic layer, make it has corrosion resistance, low wear surface, greatly extend the service life of the product.

1.  The crosshead is the critical part on the power end of the mud pump. It slides in the upper and lower guide plates, motivating the intermediate draw bar to deliver driving force to the hydraulic end. One of its ends fixes the intermediate draw bar. The cavity connects the small end of the connecting rod through cross head pin.

2.  The material of the crosshead is nodular cast iron with the strength of extension of more than 600MPa, which ensures high intensity and abrasive resistance.

3.  To guarantee close contact, the contact area of bore-hole of the crosshead and the conical surface of the crosshead pin shall be greater than 75%.

Upper and lower slide belong to the crosshead assembly. The crosshead slides in the upper and lower guide plates. Upper and lower guide plates act as slide rail.

The material is HT250. There are two aging treatments after the blank and rough machining, which ensures the machining precision.

                                                                   Upper slide

                                                                                           lower slide