ZJ40 / 2250J Rig

ZJ40/2250J rig is block substructure with Ktype mast, adopts 3 sets of PZ12V190B diesel engines to drive all devices. Main Drawworks
and compounding transmission set are placed on im high rear substructure, and the rotary table is placed on 6m high drillfloor.
Belt compounding transmission device drives Drawworks by chain, drive to rotary table through dynamic bevel gear box and cardan shaft
Belt compounding transmission device drives mud pump by belt. The rig is the best alternative product of Daging 130 rig.

1 .Substructure adopts the modular mode, and blocks connect with each other by pins, which can realize to move quickly.
2.Mast is front open-face,"K" type mast. The five sections of mast is tower-type integral structure, can install with the crown block to
transport together. The supporing leg is located at base of substructure. stability is good, lt is raised and laid down by Drawworks power as
a whole.
3.Transfer power though the bevel angle gearbox and the cardan shaft, and the rotary table power is from the cathead winchs chain box
and cardan shaft, the structure is simple and easy to install. Drawworks is divided, the main of which is placed under dirll floor,it adopts
sealing structure, chain is force-feed lubrication, pneumatic tyre gear change and drum grooving