Mait HR 130/180 piling rig combined interlocking kelly bar

Product Overview

Description

Interlocking Kelly bar  &   Friction Kelly bar

Full interlocking Kelly bar

Kelly bar is a very important part of hydraulic rotary drilling rig, because its quality directly affects the performance of drilling rig by transmission of pressure and work efficiency. Owing to adopt of the advanced processing equipment and experienced engineers, strict quality control system, Our Kelly bars successfully matched with Bauer, IMT, Soilmec, Mait, Casagrande, Sany and so on.

 Advantage & Features 

a). high quality material and rich manufacturing experience in welding process. 

b).  reasonable price and advanced processing facilities. 

c).  professional experienced engineers group from R&D department. 

d).  Raw materials of seamless steel tube with alloy from Chinese top manufacturer. 

e).  Higher hardness, higher flexibility, excellent welding properties. 

f).  Thinner tube, smaller inter-tube distance, good abrasion resistance. 

g). Advanced technology of 6-key design, standard modular design.

  

a).Interocking kelly bar

 

Interlocking pressure Kelly bar contains 3 or 6 external keys with 3 sets or more concave pressure parts. and the advantage of transfer pressure easily and better anti-torque capacity. It’s suitable for both like dense sand and gravel or weak to strong rock.

 

Interlocking kelly bar
Type	O.D(MM)	Section	Depth(m)	Torque(KN.M)
JT12 340-3x13	340	3	36	120
JT12 356-3x13	356	3	36	120
JT15 377-4x14	377	4	52	150
JT20 406-4x14	406	4	52	200
JT22 406-4x14	406	4	52	220
JT25 445-4x15	445	4	56	250
JT25 445-3x15 (Reinforced)	445	3	42	250
JT25 470-4x15	470	4	56	250
JT25 508-4x15	508	4	56	250
JT28 508-5x15	508	5	70	280

 

 b). Frictional kelly bar

The external key of frictional Kelly bar is composed 3 or 6 wear-resistant strips and working through friction force produced by rotary passing down the pressure force without concave pressure point. This type Kelly bar adopts high-strength seamless alloy steel tube and wear-resistant alloy strip. This type is suitable for the soft layer and silt layer with the advantage of operating simple, transferring the maximum torque with minimum pressure loss.

 

Frictional kelly bar
Type	O.D(MM)	Section	Depth(m)	Torque(KN.M)
JT 36/470/3/27~28	470	3	27~28	36
JT 36/470/4/36~72	470	4	36~72	36
JT 25/440/3/36	440	3	36	25
JT 25/440/4/50	440	4	50	25
JT 25/440/5/65	440	5	65	25
JT 28/394/3/24~48	394	3	24~48	28
JT 28/394/4/32~65	394	4	32~65	28
JT 18/377/3/36	377	3	36	18
JT 18/377/4/50	377	4	50	18
JT 22/406/3/36	406	3	36	22
JT 22/406/4/50	406	4	50	22
JT36/508/4/60	508	4	60	36
JT 36/508/5/75	508	5	75	36

 c)Accessories for drilling rig

 

Packing & Shipping 

  

 

 

Beijing JieTaiHongLi Technology Development Co.,Ltd is a high-tech and comprehensive enterprise, which specialize in producing Kelly bar and accessories of drilling rig from 2004 year.  We have a professional experienced engineers group with advanced crafts and technology in our R&D department to provide technology support service. The Kelly bar  produced by our factory with several our own patents to match with IMT, Bauer, Soilmec, Mait, Casagrande and so on. By the export to Indian, American, Canada, Malaysia, Turkey, Russia, etc, we won the sustained good reputation both in domestic and overseas.

 

We are the manufactory and we welcome any trusted foreign trade company to cooperated with us.