SW kelly bar Concentration & Innovation for 20 years |

customize any Kelly bar according to your needs

SW kelly bar Product Description |
1 | Steel tube | ·Seamless alloy tube same ashydro-cylinder ·Much higher nominal loadingtorque of Kelly bars ·Shot Blasting before welding | 5 | Drive shell | · Robot cutting and welding ·Integral arc plate High wear resistance |
2 | Extermal strips | ·Alloy material heat-treated. ·High hardness and highabrasion-resistance | 6 | Terminal joint | Robot cutting and welding Overlapping of intermal andextemnal plates Small tendency for cracking |
3 | Locking plate | ·Alloy material heat-treated ·High hardness and highabrasion-resistance ·Robot cutting. ·Tail structure reduce crackingtendency | 7 | Anti-friction plate | Full-rotating Reduce wear on pipe endsand stopper plate |
4 | Upper guide ring | ·Three moving rings. ·Wear-resistance. ·Impact resistance | 8 | Tool joint | Integral forging with leghth notless than 1.2 metersSignificantly reduce weld load |
Tube Type | Yield strength Y.S.(MPa) | Tensile strength T.S.(MPa) | Reference Standard |
Seamless tube same as Hydro-cylinder | ≥835 | ≥980 | GB/T 17396 |

SW kelly bar Successful Cases |


SW kelly bar Company Profile |
- 20 years of professional experience
- 1000 sets of annual production
- 10000 sets being in use for jobsite working
- 60000 m2 premises for mass production
- Plentiful stocks and Rapid delivery
- Full range of Kelly bars matched with various drilling rigs
- Authorized supplier of drilling rig manufacturers in China



SW kelly bar intelligent Manufacturing |


SW kelly bar Certificate |
Certificate :CE&ISO9001&ISO45001&ISO14001

