ZQ203/75X 型钻杆动力钳
特点/Characteristics:
1、采用国家发明专利技术，在适应范围内卡紧任意管径不 更换任何零部件。
Adopts national patent technology, clamps any pipes within its application range without changing any parts.
2、采用刹车箍制动，结构简单，拆装、调整方便。
Adopts braking hoop to achieve braking, simple structure, convenient dismounting and adjusting.
3、采用牙嵌式气胎离合器，可不停车换档，换档稳定可靠。
Adopts coupling air tube clutch, stable and reliable gear shifting may be conducted without stopping the machine.
4、配备安全门，既安全又提高了钳头刚性。
Being equipped with the safety door, safety and the tong head’s rigidity is improved .
5、悬吊背钳，主钳浮动于背钳上，跟随管柱移动，不仅省 去弹簧悬吊装置，还可减轻上卸扣过程中管柱螺纹的磨损。
With the backup tong suspending and the master tong floating over the backup tong and moving in pace withthepipe,the spring suspension device is spared, besides, the wear of the pipe string in the course of the make-upandbreak-outoperation can be reduced.
6、可与机械手配套，由多路阀控制主钳、背钳及机械手的平移和升降，操作灵活，定位准确。
Can support the manipulator, the multichannel valve controls the horizontal movement and lifting movement ofthemaster tong and the backup tong with flexible operation and accurate positioning.
7、可选配扭矩控制系统，用以显示、记录和控制上扣扭矩。
With optional torque control system to display, record and control the make-up torque.
