Kelly bar Info

Usually full lock kelly bar is composed of three weld-on ribs continuous concave and convex keys. It especillay for hard ground and frozen oil formation layer.When drilling process, the advantage is force uniform, not easy to stick pipe, particular to improve work efficiency.

Application IMT / Mait or modified small drilling rig.

Materials & Technology

1st-2nd pipe Materials: 27SiMn or 35CrMo undergone quenched-tempered heat treatment.3rd-5th pipe Materials: Q345B undergone quenched-tempered heat treatment.Kelly drive stub Materials: Soid forging with HRC305-335 and tensile strength 1050 Mpa.External pressure key: 35CrMoTi.Kelly spring Materials:60Si2Mn.

Delivery time: Normally within 10 working days after get the deposit.

Package & Shipping time: Usually for Kelly bar exported standard wrapped with aluminum film and fixed pallet tray shipped by bulk cargo vessel.

Trade terms: We offer EXW/FOB/CIF/CIP/DDP...port price.

Payment terms: 30% T/T as deposit, 70% T/T balance payment before shipment.

Warranty & After-sale Service

ONE year since manufacture date. Out-of-warranty, online video for trouble-shooting or paid maintenance service with engineers sent to be abroad.