A compact, electric down-the-hole (DTH) rotary drilling rig designed for mining and hard rock drilling operations, offering portability and high performance for small- to medium-scale drilling tasks.
Dimensions: 1740 × 260 × 420 mm; Weight: 260 kg; Motor: 4 kW electric motor; Power supply: 380 V.
Typical drilling diameter is 68–75 mm and the rig is rated for drilling depths up to 20 m.
It is engineered to operate effectively in rock hardness ranges of F = 6 to 20.
Compatible drill pipe sizes are 42 mm × 1 m and 60 mm × 1 m.
Drill pipe rotation speed is 90 rpm and the single push (stroke) length is 1000 mm.
Air consumption ranges from 3 to 12 cubic meters per minute, with a recommended operating air pressure of 0.5–0.7 MPa.
The rig provides a boost (thrust) power of 4200 N.
Yes — the product is supplied with machinery test reports and outgoing inspection videos for quality assurance.
A 1-year warranty is provided for the rig and core components (including the motor). For spare parts, maintenance and extended support, contact the supplier directly.
At 260 kg and compact dimensions, the rig is portable for its class and can be relocated on site using a small vehicle, crane, or forklift. Follow safe lifting practices and local regulations when moving the equipment.
Regular checks of the motor and electrical connections, inspection and lubrication of moving parts, monitoring air supply quality (dry and clean air), inspection of drill pipes and DTH bits for wear, and following the manufacturer's maintenance schedule.
Operators should be trained in DTH drilling procedures, electrical safety (380 V), compressed air system safety, PPE (helmet, eye protection, hearing protection, gloves), safe lifting/rigging and emergency shutdown procedures.
Yes. While optimized for mining and hard rock drilling, the rig can also be applied to related industries such as construction and energy where similar small-diameter drilling in hard formations is required.
Contact the supplier or manufacturer for ordering, lead times, pricing, and a full list of supplied accessories. The supplier can also provide detailed technical documents, machinery test reports, and outgoing inspection videos upon request.
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