API 7K drilling rig mud pump spare parts crosshead


API 7K drilling rig mud pump spare parts crosshead


The crosshead and crosshead guide are made of cast iron featured by good abrasion resistance and long service life. Upper and lower guides are used for mud pump, so that the concentricity can be adjusted by adding shims beneath the lower guide. The connection between the crosshead and the extension rod is made by using bolted flange. The rigid connection ensures the concentricity of the crosshead and the extension rod. The coupling is used for connecting the extension rod to the piston rod. The light-weight coupling enables the extension rod and the piston rod to connect to each other easily and reliably.

Crosshead pin is made from 45# steel. It is the component between connecting rod and crosshead. 

The crosshead is the part that connected the piston rod and pony rod and it has guiding role. In the compressor, closed crossheads are mainly used and opened crossheads are used in some compressor. The connection type can be divided into thread connection, connector connection, flange connection.

Bomco/Emsco F500 F800 F1000 F1300 F1600 F1600L F1600HL
National 7P50 8P80 9P100 10P130 K500 E700 N1300
Gardner Denver PZ7 PZ8/9 PZ10/11 FK-FXK FY-FXX FG-FXG FF-FXP
Oilwell A-560-PT A-600-PT A-850-PT A-1100-PT A-1400-PT A-1700-PT
Russian UNBT-950 UNB-600 8T-650 NBT600 UNB1180 UNBT1180L 3PN1600
Ideco T-500 T-800 T-1000 T-1300 T-1600
Wirth TPK1000 TPK1600 TPK2000
LS National 3NB-500C 3NB-1000C 3NB-1300C 3NB-1600 3NB-800 3NB-1300A
Ellis E-447 E-2200
Drillmec 9T1000 12T1600




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