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Surface Bumper Jar Type DJ

Short Description:

Surface Bumper Jar Type DJ Surface Bumper Jar Type DJ can be only used on drill platform, producing the downward jarring force. The jarring tonnage should be adjusted momentarily on drill stand for reliable property and usableness. The accidents for key-seating stuck, necked-in stuck and sucking stuck can be handled effectively. It can be mounted on drill string as to realize the jarring operation when accident happened. Specifications  Model  O.D. mm(in)  I.D. mm(in)  Connection  Max. J...


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Surface Bumper Jar Type DJ

Surface Bumper Jar Type DJ can be only used on drill platform, producing the downward jarring force. The jarring tonnage should be adjusted momentarily on drill stand for reliable property and usableness. The accidents for key-seating stuck, necked-in stuck and sucking stuck can be handled effectively. It can be mounted on drill string as to realize the jarring operation when accident happened.

Specifications

 Model  O.D.

mm(in)

 I.D.

mm(in)

 Connection  Max. Jarring Force

kN

 Max working Load

kN(lbf)

 Tensie Yield Strength

kN(lbf)

 Max.Working Torgue

kN·m(lbf·ft)

Torsional Yield Strength

kN·m(lbf·ft)

 Max. Stroke

mm

 length

mm

DJ46 121(4-3/4) 31.8(1-1/4) NC38 400(90000) 1000(225000) 1950(438000) 15(11000) 27(20000) 1800(70-7/8) 3395(133-11/16)
DJ159 159(5-1/4) 50.8(2) NC50 600(135000) 1600(360000) 2700(600000) 25(18000) 65(48000) 1223(48-1/8) 3030(119-5/16)
DJ70Ⅱ  178(7) 50.8(2) NC50 700(160000) 2400(540000) 4650(1050000) 30(22000) 80(59000) 1222(48-1/8) 3030(119-5/16)
DJ80 203(8) 50.8(2) 6 5/8REG 800(180000) 2800(630000) 6100(1370000) 35(26000) 145(100000) 1200(47-1/4) 3248(127-7/8) 

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