--the rig is applicable to 2800-4500m drilling depth for oil well with 127mm drilling pipe, and 3500-5000m drilling depth with 114mm drilling pipe
--AC-SCR-DC power transmission system is applied for ZJ50D(AC-DC-AC FOR ZJ50DB@single drum shaft drawworks). through step-less speed control to drawworks, rotary table and mud pumps, user can acquire expected drilling performance.
--grooved drawworks drum with air clutch to shift speed
--disc brake is applied as main hydraulic and auxiliary brake is eddy current brake or eaton brake
--rotary table is driven independently or compoundly
--substructure type of sling shot allows mast and floor equipment installed at low height level then raised integrally utilizing drawworks power or individual hydraulic winches devices
--major components of rig conform to API specification and are allowed to use API monogram

--nominal drilling depth
127mm D.P.@2800 4500m
114mm D.P.@3500 5000m
--max. hook load:3150kn
--rated power of drawworks:1500HP
--main brake :hydraulic disc brake
auxiliary brake :DS50 eddy current brake/eaton 336WCB
--hoisting wire lines: 6*7 lines
--dia, of drilling line :35mm (1-3/8)
--id, of swivel stem: & 75mm(3)
--model and no. of mud pumps: F-1600/3 sets(as requirement)
--opening of rotary table :952.5mm (37/2)
--type of mast and its effective height : K type /45m
--height of drilling floor :9m/10.5m
clear height :7.617m
--transmission of power:AC-SCR-DC/AC-DC-AC
--diesel engine

No. of generators and power:3*1200KW
type of diesel engine:CAT 3512B DITA(as requirement)
speed:1500r/min
frequency/ volt of generators:3 phases/50HZ/ 600V
--auxiliary diesel engine:1*400KW
type of diesel engine:1*400KW
type of diesel engine:VOLVO(as requirement)
--Compressed air pressure 12 MPa
--mud high pressure manifold4*35 MPa
--total capacity of mud circulation system:320m3 (as requirement)