Specifications

1.YJ type one-way shock absorber
2.Simple construction
3.Easy and reliable operation

Usage:

YJ type one-way shock absorber is a kind of drilling tool which effects shock absorption by depending on hydraulic oil under external force through elastic deformation and damping.

 

Features:

With some features of simple construction, easy and reliable operation, it can fully overcome the impact and shocking load from drill strings during drilling operation.

 

Function:

Taking use of the shock absorber, it can raise the service life for drill bit and drill tool, speed up drilling, get rid of drilling jumping, well protect surface equipments and drilling tools.

 

Detail Specification:

Technical specification and parameters for YJ type One-Way Shock absorber
Type	O.D. (mm)	I.D. (mm)	Max. stroke (mm)	Max.bit weight (KN)	Tensile strength (KN)	Ambient temperature	Connection	Pull-down overall length (mm)	Sealing Pressure Mpa
YJ121B	121	38	121	265	1000	-40~150	NC38	3950	30
YJ160B	160	45	120	343	1500	-40~150	NC46	39804100	30
YJ178B	178	57	125	392	1500	-40~150	NC50	380045	30
YJ203B	203	64	150	490	2000	-40~150	6 5/8"REG	4100045	30
YJ229B	229	70	150	539	2000	-40~150	7 5/8"REG	3820	30