Mechanical Drilling Jar for Oilfield

• After-sales Service: Yes
• Warranty: 1year
• Manufacturing Process: CNC Milling
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: 210
• Transport Package: Wooden Case
• Specification: 114
• Trademark: zx
• Origin: China
• Production Capacity: 2000

Product Description

Product Description

mechanical drilling jar is a full mechanical type drilling jar and releasing stuck tool.
It integrates upward jarring with downward jarring releases the tight pull or the sticking or
other drilling troubles during drilling. It is a part of drill stem when it needn't jarring and it
can work at anytime when need jarring. Thus increasing the work efficiency It has widely
load ( jarring force) scope of the upward jarring and the downward jarring, so it can be
adjusted at the maintenance stations or on the well sites according to the requirements. The
special flexible joint can reduce the flexural stress of the drilling jar body efficiency.

Product Parameters

Parameters/Model		ZSJ80B	ZSJ76B	ZSJ70B	ZSJ64B	ZSJ62B	ZSJ56B	ZSJ46B
		ZXJ80B	ZXJ76B	ZXJ70B	ZXJ64B	ZXJ62B	ZXJ56B	ZXJ46B
O.D. (mm)		203	197	178	165	160	146	121
I.D. (mm)		71.4	71.4	70	57	57	57	47
Pull down overall length	Up	5515	5515	5424	5360	5360	5730	5300
(mm)	Down	5250	5250	5215	5215	5215	5000	4760
Pull down stroke (mm)	Up	368	368	344	344	344	332	305
	Down	178	178	178	178	178	180	178
API Connection		6 5/8 REG	6 5/8 REG	NC50	NC46	NC46	4 1/2 FH	NC38
Max.tensile load (KN)		2500	2500	2300	2200	2200	2000	1400
Max.working Torque (N.m)		20×103	18×103	15×103	15×103	15×103	15×103	13×103
Rated release force for up jar (KN)		400~600	400~600	350~550	300~450	300~450	200~350	150~250
Max.up jarring released force (KN)		750	750	550	550	550	450	270
Max.down jarring release force (KN)		600	600	550	500	500	400	250
Weight		2124kg	1950kg	1350kg	1200	1090kg	870kg	650kg

Packaging & Shipping