1, The whole structure is reasonable, the high degree of centralization, small floor area, chassis using heavy load 12X8, 10X8 long drive from the chassis, equipped with hydraulic power steering and good mobility, stability;
2,The power system uses the Caterpillar diesel engine and Alison hydrodynamic transmission box, the transmission efficiency is high, the reliability is strong;
3, The derrick using hydraulic lifting, telescopic, the type of the first opening is two sections of the mast type.
4, The base is a parallel quadrilateral structure, disassembly, transportation is convenient.

Rig type	XJ450	XJ550	XJ650
Workover repth	5500m（2-7/8" heavy weight tubing ）  4500m（2-7/8"DP）               3500m（3-1/2"DP）	7000m（2-7/8" heavy weight tubing ）  5800m（2-7/8"DP）  4000m（4-1/2"DP）	8500m（2-7/8" heavy weight tubing ）   7000m（2-7/8"DP）  5500m（4-1/2"DP）
Rated hook load	800kN	1000	1200
Max. hook load	1100kN	1350	1600
Engine type	CAT3408  DITA or C-15 ATACC	CAT3408  DITA or C-15 ATACC	CAT3412    DITA or C-18
Rated power/Rotational speed	354kW(475HP)/2100r/min	354kW(475HP)/2100r/min	470kW（630HP）/2100r/min
Height of the mast	32m（ clear height ）	33m（ clear height ）	35m（ clear height ）
Diameter of rope	Φ26mm	Φ26mm	Φ26mm
Structure of traveling system	8	8	8、10
Rotary table	ZP135	ZP135	ZP175
Traveling block	YG110	YG135	YG160
Swivel	SL110	SL135	SL160