KR Drilling

Kelly bar Info

Kelly bar is a very important part for rotary drilling rig, because its quality directly affects the work efficiency by transferring up pressure to the down drilling tool.

Application

SANY SR280/360 & XCMG 280/400 & TEG/CSR 180/280 Drilling rig Friction/ interlocking Kelly bar

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.