1 year warranty Factory rotary drilling rig interlocking kelly bar 

There are mainly two types of kelly bars:

1- Interlocking Kelly Bar                   2- Friction Kelly Bar

Advantages & Features 

1. Rich manufacturing experience.

2. Advanced technology of 6-key design, standard modular design.

3. Advanced processing facilities, processing technic and manufacturing equipments.

4. Low light, high strength, high straightness.

5. Thinner tube, smaller inter-tube distance, good abrasion resistance.

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

7. All the outer keys have undergone special heat treatment.

8. Higher hardness, higher flexibility, excellent welding properties.

1) interlocking Kelly Bar

Interlocking kelly bars are used with pilling rigs for drilling in dense sand,gravel and weak to strong rock.The interlocking kelly bars can be fully locked by mechanicallocking system on each sectiong. Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose.

Interlocking Kelly bars are used with piling rigs for drilling in dense sand and gravel and weak to strong rock. The Interlocking Kelly bars manufactured by Unimate can be fully locked by mechanical locking system on each section. Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose. 

Please see below chart of some of our standard productions for Interlocking kelly bars:

Identification No.	Torque(ton.m)	O.D.(mm)	Sections	Drilling Depth (m)
UM36/470/3/27~28	36	470	3	27~28
UM 36/470/4/36~72	36	470	4	36~72
UM 25/440/3/36	25	440	3	36
UM 25/440/4/50	25	440	4	50
UM 28/394/3/24~48	28	394	3	24~48
UM 28/394/4/32~65	28	394	4	32~65
UM 18/377/3/36	18	377	3	36
UM 18/377/4/50	18	377	4	50
UM 22/406/3/36	22	406	3	36
UM 22/406/4/50	22	406	4	50
UM 36/508/4/60	36	508	4	60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Company profile

UNIMATE is an advanced technology company dedicated to the R&D, manufacture and trade of various drilling tools, attachments and spare parts.

By depending on a group to engineers and skilled workers with years of experience in foundation drilling engineering and construction design, our products have reached the advanced level in China in terms of the technology and quality as well.

UNIMATE highly focuses on international cooperation and communication. Till present, our products have been exported to many different countries and regions such as Germany, Singapore, Turkey, Russia, Middle East and South America.