Interlocking Kelly Bar

Our range of Interlocking Kelly Bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both at home and abroad, we can produce first-class kelly bar which can be compared favourably with the imported ones.
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.

The features of Interlocking Kelly Bar are as follows:
Adopt the advanced technology of 6-key design in the world and standard modular design.
Equipped with advanced processing facilities, workmanship and manufacturing equipments, Interlocking Kelly Bar enjoys a low weight, high strength, high straightness of single bar, thinner tube, smaller inter-tube distance and good abrasion resistance.
The raw materials are either imported from Germany like the high abrasion resistance materials