1.taper drill rod and integral drill rod 2.durable steel material for longtime use 3.high quality and reasonable price Specifications

1,high quality and reasonable price 2,durable steel material for longtime use 3,applied to the Bauer rig usually

Locking  drilling bar, three key type and six key type two kinds, steel material adopt high quality alloy steel seamless steel tube, welding in the key on the road for high wear-resisting drive keys. The key driver, according to the outside pressure stroke with three or four pressure point, when the pipe to drive into the driver turns key point, the key pressure produced by the pressurized cylinder pressure, with head and drill through direct transmission to drill, can apply in neutral layer, hard soil or rock layer.

   

interlocking kelly bar for Bauer drilling rig
Type	O.Dia.(MM)	Section	Depth(m)	Torque(KN.M)
DZ12 340-3x13	340	3	36	120
DZ12 356-3x13	356	3	36	120
DZ15 377-4x14	377	4	52	150
DZ20 406-4x14	406	4	52	200
DZ22 406-4x14	406	4	52	220
DZ25 445-4x15	445	4	56	250
DZ25 445-3x15 (Reinforced)	445	3	42	250
DZ25 470-4x15	470	4	56	250
DZ25 508-4x15	508	4	56	250
DZ28 508-5x15	508	5	70	280

   

International interlocking kelly bar for Bauer drilling rig