We can design and produce interlocking and friction Kelly bars for variety of drilling machines. The high quality steels and components together with quality system ISO 9001 make our Kelly bars have the highest reliability.
1. 2 to 6 elements telescopic Kelly bars for construction.
2. A depth range is from 10m to 110m
3. Torque transfers capacity from 80kNm to 500kNm
4. Upper or lower spring shock absorber
5. Standard or custom square Kelly box for connecting all types of drilling tools
6. Make any kind of Kelly bars according to customers' request.
Post by Sherry He Mechanical Parts & Fabrication Services @2012-06-02 11:19:53