52m 68m 73m Depth Drilling Machine Rotary Drilling Rig Sr275s Sr235s

• Customization: Available
• After-sales Service: Video Technical Support, Online Support,
• Warranty: One Year Warranty
• Model NO.: SR275S
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• Condition: New
• Motor: AC Motor
• Drill Hole Diameter: >300mm
• Drill Hole Depth: 50-100m
• Bit Type: Drag Bit
• Drilling Way: Rotary
• Type: Crawler
• Operating Weight: 90t
• Power: 272kw
• Crowd Force: 240kN
• Stroke: 5000mm
• Transport Package: Nude Package
• Specification: 17250*3540*3845mm
• Trademark: China Brand
• Origin: Hunan
• HS Code: 0000000
• Production Capacity: 100units/Month

Product Description

Product Description

SR275S mobile rotary drilling rig

Efficient and flexible
Widely used in small dia. & deep borehole construction in civil engineering, high main hoist lifting up and down speed, high verticality of finished borehole, high working efficiency in civil construction.
Economical and energy-saving
Imported large-displacement EFI engine with strong power, adopts power optimization control technology, adjusts power distribution in real time, fast response speed, higher fuel efficiency and more energy-saving.
High reliability
The mast adopts box structure with strong resistance to torsion and fatigue; sixth generation kelly bar adopting upgraded material and strengthened block ring, the overall strength increased by 25% with high drilling ability in strongly weathered rock layer.

Detailed Photos

Product Parameters

 

Engine
Engine Model	QSM11
Rated Power	272kW / 325 HP
Emission Standard	Euro III / EPA Tier 3
Drilling Performance
Max. Drilling Diameter	2500 mm (98.4 in)
Max. Drilling Depth	90 m (295 ft)
Max. Torque	275 kN·m (203,000 lbf·ft)
Rotation Speed	6-25 rpm
Mast & Boom
Mast Height	24.5 m (80.4 ft)
Mast Tilt Angle	±5°
Kelly Bar
Type	Telescopic Kelly Bar (6 sections)
Max. Length	48 m (157.5 ft)
Hydraulic System
Main Pump Flow	2 × 260 L/min (2 × 68.7 gal/min)
Working Pressure	35 MPa (5076 psi)
Travel System
Travel Speed	1.6 km/h (1 mph)
Gradeability	40%
Track Width	1000 mm (39.4 in)
Dimensions
Transport Length	13.5 m (44.3 ft)
Transport Width	3.3 m (10.8 ft)
Transport Height	3.4 m (11.2 ft)

Packaging & Shipping

 

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After Sales Service