SR250-M Multi-purpose Drilling Rig

SR250-M Multi-purpose Drilling Rig

·With 70m Max. drilling diameter, the machine adopted C-9DITA diesel motor(Caterpillar U.S). Super output torque of 250kN•m ensures stability of pile foundation engineering construction.
·Key parts are imported in well-known brand abroad.
·Electric system owns CAN-BUS technique, which takes full charge of mutual control of engine, hydraulic pump, hydraulic valve, as well as the monitoring and protection of engine, hydraulic system, and working conditions.
·With auto rising/down and foldaway mast mechanism, lower mast supporting oil cylinder and Parallelogram amplitude variation mechanism, the machine ensures the flexibility of the construction.
·The machine adopted winch pressurizing method instead of oil cylinder pressurizing, and pressurizing stroke increased from 5.3m to present more than 14.5m, thus ensures drilling rig getting stable vertical pressurizing force.
·A variety of drilling tools can be fixed, suitable for multi-purpose application.

Diaphragm walling Grabs technical parameters		CFA method technical parameters
Drilling depth	70m	Drilling depth	20.5(14.5+6)m
Drilling diameter	1500mm	Drilling diameter	1000mm
Drilling torque	285kN. m	Max pull	660 kN
Drilling speed	6—30rpm	Drilling speed	21rpm
Max push	180 kN	Main winch pull(1st layer)	240 kN
Max pull	256 kN	Main winch pull speed	70m /min
Stroke of rotary table	14500mm	Main winch rope diameter	28mm
Mast sidewards	°	Auxiliary winch pull （1st layer）	110 kN
Mast forwards	5°	Auxiliary winch pull speed	70m /min
Mast backwards	15°	Auxiliary winch rope diameter	20mm
Main winch pull（1st layer）	256 kN	Max push	180 kN
Main winch pull speed	63m /min	Main winch pull speed	20m /min
Main winch rope diameter	28mm	Main winch rope diameter	20mm
Engine manufacturer	Caterpillar	Engine manufacturer	Caterpillar
Engine type	C-9DITA	Engine type	C-9DITA
Engine rated power	250kW /1800rpm	Engine rated power	250kW /1800rpm
chassis	CAT 330C /325VH	chassis	CAT 330C /325VH
Max traction force	510 kN	Max traction force	510 kN
Working width	4300mm	Working width	4300mm
Transport width	3000mm	Transport width	3000mm
Working height	21600mm	Working height	26060mm
Transport height	3398mm	Transport height	3398mm
Max total weight	72t	Max total weight	70t