The drill pipe free clamp adopts alloy structure with large clamping force, and has five specifications of 56, 71, 89, 114 and 140, which can also be applied to casing of the same specification. The inner tube free clamp adopts diamond brazing process to effectively protect the inner tube, with six specifications of 43N, 47N, 56N, 73N, 95N and 118N.

Pipe tongs have 18 inch, 24 inch, 36 inch, 48 inch, 60 inch five specifications.

Standard and Parameter Performance of Drill Pipe Free Tongs

NO.	Standard	Name	Applicable Drilling Casing Standards
1	ZYQ-B56A-ZTG	Drilling Casing Free Tongs	B
2	ZYQ-N71A-ZTG	Drilling Casing Free Tongs	N
3	ZYQ-H89A-ZTG	Drilling Casing Free Tongs	H
4	ZYQ-P114A-ZTG	Drilling Casing Free Tongs	P
5	ZYQ-140-ZTG	Drilling Casing Free Tongs	S

Standard and parameter performance of inner tube free clamp

NO.	Standard	Name	Applicable drilling tool standards
1	ZYQ-B41/43-NG	inner tube free clamp	BC
2	ZYQ-B47-NG	inner tube free clamp	BC2
3	ZYQ-N53/56-NG	inner tube free clamp	NC、NC2
4	ZYQ-H71/73-NG	inner tube free clamp	HC
5	ZYQ-P95-NG	inner tube free clamp	PC
6	ZYQ-118N	inner tube free clamp	SC

Technical exchange

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Bit Selection in Hard Rock Formation

Bit Selection in Soft Rock Formation

Engineering case

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Pipe wrench

Pre

Pipe wrench

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