CR20 Surface Core Drilling Rig

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CR20 has a drilling depth capacity of 2850 meters. Large core samples, a gear driven rotation unit and a constant penetration rate allow the CR20 Surface coring drill rig to boost your productivity and profits. This Surface Drill Rigs fits with Cummins engine and international brand hydraulic components.
CR20 Full hydraulic core drilling rig has an outstanding external appearance, a compacted structure, reliable functions and a flexible operating system. All these elements have made this hydraulic core drilling rig the best choice among the same products in both domestic and abroad markets.
Equipped with all the essential gauges, including, Rotation speed; Feed Pressure; Ammeter; Voltmeter; Main Pump/Torque gauge; Water pressure gauge. The independent hydraulic oil cooling set can control the oil temperature effectively.The rotation head is a step-less speed transmission, offering a wide range of speeds and torque (up to 3 speeds), the rotation head can be side racked via hydraulic rams for added convenience and efficiency especially during rod trips.The rig provides operator with a nice field of vision and wide and comfortable working condition. The rig looks pretty in overall structure and embodies the design thought of people oriented.
One of the key features of the surface diamond core drilling rig is its ability to obtain high-quality and undisturbed core samples from various types of geological formations. This is important for determining the composition, structure, and properties of the subsurface, as well as for identifying valuable mineral deposits, evaluating foundation conditions, and conducting environmental assessments.
The rig features a hydraulic system for controlling the drilling parameters, such as rotation speed, feed force, and water flow. This allows the operator to adjust the drilling process according to the specific requirements of the formation being drilled, ensuring optimal performance and sample recovery. The rig can be operated by a single operator, thanks to its user-friendly controls and integrated safety features.
Main Performance Parameters of CR-20
Self contained operator panel with manually operated hydraulic control valves.
15 ton capacity mainline hoist
32 ton pullback with 6 m rod pull, direct-coupled feed cylinder with 3.7 m stroke
0-90 degree mast angle capability
Hydraulic Chuck with 294 kN holding capacity
Hydraulic powered rod clamp with BQ rod to PQ casing jaw sizes
PQ foot clamp, spring close / hydraulic open for failsafe operation
Individual cooling system, Centralized operation panel
Specification of Main Machine

Diesel Engine	Model	Cummins QSLB8.9 (EU Stage IIIA)
	Displacement	8.9L
	Power	242kW (325HP)
	Rated RPM	2100rpm
Drilling Capacity	BQ	2850 m
	NQ	2250 m
	HQ	1850 m
	PQ	1350 m
Drill Head	Rotation Motor	Two-speed Hydraulic Motor Producer: Rexroth of Germany
	RPM	Three Shifts Stepless Change： 0-1250 RPM
	Ratios	1st 8.2:1 2nd 4.2:1 3nd 1:1
	Head Opener	sidewise sliding way with hydraulic drive
	Hydraulic Chuck(PQ)	Hydraulically opened, Disc Spring Clamping, Normally C Closed Type Axial Holding Capacity of 294000 N