SR280RII Large crawler rotary drilling rig

1.High working efficiency and energy-saving
2.Rotary drive multi-gear control includes four models: rock drilling, standard, e

With anti-shock truss-structure mast and crowd winch feeding system which provides longer crowd stroke and stronger feeding force, SR280RII rotary drilling rig can drill in the rock stratum with uniaxial compression strength not exceed 100Mpa and drillability below grade 8.

 Electrical system Rotary drive multi-gear control:

High working efficiency and energy-saving. Rotary drive  multi-gear control includes four models: rock drilling, standard, energy-saving and soil-dumping, to adapt to different working conditions.

GPS Remote Monitoring: Realize remote customer support with wireless transmission of data. 3G communication technology greatly increases the transmission speed and transmission capacity. Realize remote recording and fault diagnosis with complex fault diagnosis algorithm. M2M fleet service. GPS, wireless networks, mobile link

SR420II

	Unit	Parameters
Max. output torque	kN.m	420
Max. drilling dia	mm	3000
Max. drilling depth	M	110
Drilling Speed	rpm	5~20
Max.push	kN	380
Max. pull	kN	380
Crowd stroke	mm	8000
Main winch pull (1st layer)	kN	435
Main winch line speed	m/min	46
Main winch wire rope dia.	mm	40
Aux. winch pull (1st layer)	kN	90
Aux. winch line speed	m/min	94
Aux. winch wire rope dia.	mm	28
Mast sideward	°	±3
Mast forward	°	5
Mast safety backward	°	15
System pressure	Mpa	35

Chassis model		CAT336C
Crawler width	mm	1000
Crawler height	mm	1190
Chassis length	mm	7932
Operation height	mm	28500
Operation width	mm	5500
Transport length	mm	19270
Transport width	mm	3900
Transport height	mm	3773
Traction force	kN	896
Total weight (with standard Kelly)	ton	148

Engine	CAT C-15
Engine power	380kW/1800rpm
Style	4-storke, water-cooled, overhead value type and electronic injection
Intake form	Turbocharged, inter cooling
Fuel	Diesel oil
Emission regulation	EU stage III/EPA Tier 3
Displacement	15.2L/928in3