(Automatic Rod Changing) JLRC500-AC Air-Lift Reverse-Circulation Exploration Drilling Rig

Model:

Usage

The drilling rig features fully hydraulic assistance and automated drill pipe handling, along with a dedicated drill pipe storage facility, thereby enhancing operational efficiency and automation.

Drilling Depth:

Machine weight:

Category：

Air-lift reverse-circulation exploration drilling rig

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The RC reverse-circulation drilling rig is a new-generation, high-efficiency, environmentally friendly, multi-functional crawler-mounted drill rig that employs double-wall drill rods. After the cuttings are discharged through the inner tube, they are collected by a cyclone separator, making it suitable for sampling and analytical work in geological exploration agencies.

This drilling rig is capable of performing reverse-circulation DTH drilling with compressed air in a wide range of geological formations. Equipped with an automated drill-rod changing system, all operations—including mast lifting, mast compensation, drill-rod connection and disconnection, rotary and feed motions, outrigger deployment, hoisting, and travel—are hydraulically powered, significantly reducing labor intensity while enhancing construction efficiency and quality.

Key features:

1. The drilling rig has achieved Fully hydraulic assistance, automation The drill pipe is replaced, and a dedicated drill pipe storage facility is provided, thereby enhancing operational efficiency and the level of automation.

2. Low failure rate, compact design, and high torque. The rotary speed can be adjusted to suit different operating conditions, effectively improving the impactor’s penetration rate.
3. The hydraulic system is equipped with a dedicated hydraulic oil cooler to ensure continuous operation of the drilling rig under outdoor high-temperature conditions.

4. The adjustable slide frame allows the drilling rig to be pressed firmly against the working surface during operation via a compensating hydraulic cylinder, thereby enhancing the rig’s structural rigidity and ensuring operational stability.

5. A reliable and efficient air pre-filter system that effectively removes dust from the intake air, is easy to clean and maintain, significantly reduces engine wear, extends service life, enhances operational efficiency, and is well-suited for harsh operating conditions.

Technical Specifications

Drilling capability	Borehole depth (m)	500
	Drilling diameter (mm)	105-400
	Drill rod diameter (mm)	76/89/102/114
	Drill pipe length (m)	1.5/2/3
Power Head Parameters	Rotational torque (N·m)	8,000–12,000
	Rotational speed (rpm)	40-160
	Give the distance (m)	3.3
	Lift (kN)	300
	Thrust (kN)	150
	Rapid ascent speed (m/min)	20
	Feed rate (m/min)	40
Engine Parameters	Engine brand	Cummins
Engine Parameters	Rated Power/Speed (kW/rpm)	132/2200
Tool Winch	Lift (kN)	20
Matching air compressor	Working air pressure (MPa)	1.7–3.5
Matching air compressor	Air consumption (m³/min)	17-42
With impactor (reverse circulation)		Medium-to-High Pressure Series
Track parameters	Walking speed (km/h)	2 times 3
Track parameters	Climbing ability (°)	25
Overall dimensions	Transportation Status (mm)	630021002500
Overall dimensions	Operating status (mm)	450030006800
Overall machine weight (t)		12