JQ-YS Double Way Hydraulic Shock Absorber

JQ-YS double way hydraulic shock absorber is a kind of shock absorber which can slow down or eliminate shock both in vertical and axial direction. This tool can keep the normal bit pressure and torque, therefore it can reduce the damage of drill bit, drilling tools and ground equipment due to shock, to achieve the purpose of improving drilling rate and reducing the drilling costs.

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JQ-YS Double Way Hydraulic Shock Absorber

 

JQ-YS double way hydraulic shock absorber is a kind of shock absorber which can slow down or eliminate shock both in vertical and axial direction. This tool can keep the normal bit pressure and torque, therefore it can reduce the damage of drill bit, drilling tools and ground equipment due to shock, to achieve the purpose of improving drilling rate and reducing the drilling costs.

Model JQ-YS121 JQ-YS 159 JQ-YS 178 JQ-YS203 JQ-YS229
OD mm (inch) 121 (4-3/4) 159 (6-1/4) 178 (7) 203 (8) 229 (9)
ID mm (inch) 38(1-1 ⑵ 44.5 (1-3/4) 50.8 (2) 65 (2-9/16) 71.4(2-13/16)
lool Joint Coimection API NC38 NC50 NC50 6-5/8 REG 7-5/8 REG
Max. Tensile Load KN(lbf) 1000 (225,000) 1500 (337,000) 1500 (337,000) 2000 (450,000) 2100 (472,000)
Tensile Yield KN(lbf) 1600 (360,000) 2500 (562,000) 2500 (562,000) 3500 (790,000) 3600 (810,000)
Torsional Limited KNm (lbf-ft) 10 (7000) 15 (11,000) 15 (11,000) 20 (14,000) 20(14,000)
Torsional Yield KNm (lbf-ft) 15(11,000) 25(1 &000) 25(1 &000) 35 (25,000) 35 (25,000)
Max. Pressure KN(lbf) 250 (56,200) 300 (67,500) 350 (79,000) 450(100,000) 540(121,000)
Max. Stroke mm (inch) 80 (3-1/8) 100 (3-15/16) 100 (3-15/16) 120 (4-3/4) 140 (5-1/2)
Overall Length mm (ft) 5105 (16.7) 5221 (17.1) 5418(17.8) 5731 (18.8) 5834 (19.1)

 

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