Popular Rotary Drill Stem Element Kelly Bar 406

1.taber drill rod adn integrla drill rod 2.durable steel for long time use 3.high quality and resonable price Detailed Product Description

1,high quality and competitive price 2,durable steel material for longtime use 3,applied to the hard and soft layer

Combined type kelly bar is a kind of combination drill, which is formed by mechanical locking type, full interlocking type, frictional type and other various forms. There are a variety of combinations. Generally speaking, the kelly bar may drill the hard layer in the range of 0-50 meters. It can be used for construction of soft layer formation when the hole depth is in the range of 50-70 meters. According to the need of the configure or the operating condition, the drill pipe chooses the way of transmission of pressure. Such as ,the first section of the mechanical locking kelly bar. According to the machine-locking driving force set, and other are full interlocking kelly bar.  In order to achieve a certain depth of drilling and enhance the effect of drilling hard layer, it can be chosen the full interlocking or mechanical locking kelly bar outside and inner is resistance kelly bar, comprehensive situations for difference kelly bar specifications. Generally, there are: mechanical lockingX1 +full interlocking X3 or mechanical lockingx4+grinding resistance X1, full interlockingX4 + grinding resistance X1 and other kind of of combination. 

 

 

rig Kelly Bar
Type	O.Dia.(MM)	Section	Depth(m)	Torque(KN.M)
DZ12 340-3x13	340	3	36	120
DZ12 356-3x13	356	3	36	120
DZ 15 377-4x14	377	4	52	150
DZ 20 406-4x14	406	4	52	200
DZ 22 406-4x14	406	4	52	220
DZ 25 445-4x15	445	4	56	250
DZ 25 445-3x15 (Reinforced)	445	3	42	250
DZ 25 470-4x15	470	4	56	250
DZ 25 508-4x15	508	4	56	250
DZ 28 508-5x15	508	5	70	280

 

 

 

 

Popular Rotary Drill Stem Element Kelly Bar 406