Soilmec Bauer rotary drilling friction kelly bar
Friction Kelly Bar
Frictional kelly bar needn't unlock the joint of its inner and outer lining so that it is convenient and fast to lift the bar. Non-stair key, friction transmission the outside key is made by highly wear-resisting tempering steel. For layer of soft ground and mud, mud, (mud) sand, gravel
OD(MM) | Model | Section | Tube length | Drilling depth | Torque |
¢299/305 | Friction | 3/4/5 | 9—14 | 24—65 | 110—120 |
¢340/343 | Friction | 3/4/5 | 9—14 | 24—65 | 110—120 |
¢355 | Friction | 3/4/5 | 9—14 | 24—65 | 110—120 |
¢368 | Friction | 3/4/5 | 9—14 | 24—65 | 150—180 |
¢377 | Friction | 3/4/5 | 9—14 | 24—65 | 150—180 |
¢394 | Friction | 3/4/5 | 9—15 | 24—70 | 180—200 |
¢406 | Friction | 3/4/5 | 9—15 | 24—70 | 180—200 |
¢419/426 | Friction | 3/4/5 | 9—15 | 24—70 | 220—230 |
¢440/445 | Friction | 3/4/5/6 | 9—18 | 24—85 | 220—260 |
¢470 | Friction | 3/4/5/6 | 9—18 | 24—102 | 220—260 |
¢482 | Friction | 3/4/5/6 | 9—18 | 24—102 | 220—260 |
¢508/510 | Friction | 3/4/5/6 | 9—18 | 24—102 | 260—360 |
¢530 | Friction | 3/4/5/6 | 9—20 | 32—114 | 320—400 |
¢558/560 | Friction | 3/4/5/6 | 9—24 | 32—118 | 360—420 |
¢575/580 | Friction | 3/4/5/6 | 9—24 | 32—118 | 360—420 |
¢630 | Friction | 3/4/5/6 | 9—26 | 32—150 | 400—500 |
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