• Drawworks positive gears all adopt roller chain transmission and negative ones adopt gear transmission.
• Driving chains with high accuracy and high strength are forced lubricated.
• The drum body is grooved. The low-speed and high-speed ends of drum are equipped with ventilating air tube clutch.
The main brake adopts belt brake or hydraulic disc brake, while the auxiliary brake adopts configured electromagnetic eddy current brake(water or air cooled).
Basic Parame...
Type QW Pneumatic Slip is an ideal wellhead mechanized tool with double functions, it automatically handle the drill pipe when the drilling rig is running in hole or scraping the pipes when the drilling rig is pulling out of hole. It can accommodate different kinds of drilling rig rotary table. And it features convenient installation, easy operation, low labor intensity, and can
Improve the drilling speed.
Technical Parameters
Model
QW-175
QW-205(520)
QW-275
QW...
There are three types of DU series Drill Pipe Slips: DU, DUL and SDU. They are with large handling range and light weight. Thereinto, SDU slips have larger contacting areas on the taper and higher resistance strength. They are designed and manufactured according to API Spec 7K Specification for drilling and well servicing equipment.
Technical Parameters
Mode
Slip Body Size(in)
4 1/2
5 1/2
7
DP OD
DP OD
DP OD
in
mm
in
mm
in
mm
DU
2 3/8
60.3
3 1/2
88.9
4 1/...