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JK820 Crawler DTH Drilling Rig 90-138mm Hole Diameter Diesel Powered Rock Drill for Quarry Mining Applications

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JK820 Crawler DTH Drilling Rig 90-138mm Hole Diameter Diesel Powered Rock Drill for Quarry Mining Applications

Name: JK820 Crawler DTH Drilling Rig 90138mm Hole Diameter Diesel Powered Rock Drill for Quarry Mining Applications
Brand: JINKE
Price: 1 USD

Buy cheap JK820 Crawler DTH Drilling Rig 90-138mm Hole Diameter Diesel Powered Rock Drill for Quarry Mining Applications product

Hole Diameter : 90-138 mm

Certification : ISO 9001:2015, CE

Air Consumption : 11-17 m³/min

Climbing Ability : 30°

Total Weight : 6500 kg

Payment Terms : T/T,L/C

Working Pressure : 1.0-2.1 MPa

Travel Speed : 0-2.5 km/h

Rotation Speed : 0-60 rpm

Chassis Type : Hydraulic Crawler

Overall Dimensions : 5100 x 2150 x 2700 mm

MOQ : 1 Set

Packaging Details : Standard seaworthy export packaging, main unit secured on steel frame with shrink wrap, accessories in plywood cases

Impact Frequency : 820 bpm

Feed Force : 18 kN

Brand Name : JINKE

Place of Origin : Xuanhua, Zhangjiakou, Hebei, China

Drill Pipe Diameter : 76 mm

Engine Type : Diesel Engine

Price : Negotiable

Drilling Depth : 20-30 m

Model Number : JK820

Drilling Method : Down-The-Hole (DTH)

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JK820 Crawler DTH Drilling Rig — Built for Quarry and Mining

The JK820 is a crawler-mounted down-the-hole (DTH) drilling rig designed for medium to hard rock formations. It covers a hole diameter range of 90mm to 138mm with economical drilling depth of 20m and a maximum reach of 30m. Powered by a reliable diesel engine and a fully hydraulic system built with domestic first-tier brand pumps and multi-way valves, this rig is engineered to perform shift after shift with minimal downtime.

Key Performance Highlights

Impact Frequency	820 bpm — matching the rig name, delivering consistent penetration in hard rock
Air Consumption	11-17 m\u00b3/min — 10-15% lower than comparable models, saving air compressor fuel
Rotation System	High-torque cycloidal motor, stable output through fractured rock layers
Crawler Chassis	Reinforced undercarriage with 7 support rollers, 30\u00b0 gradeability
Dust Control	Dual-layer sealed dust hood reduces airborne particulates at the worksite

Technical Specifications

Hole Diameter Range	90 - 138 mm
Drilling Depth	20 m (economical) / 30 m (maximum)
Drill Pipe Diameter	76 mm
Working Pressure	1.0 - 2.1 MPa
Rotation Speed	0 - 60 rpm
Feed Force	18 kN
Travel Speed	0 - 2.5 km/h
Overall Dimensions (L\u00d7W\u00d7H)	5100 \u00d7 2150 \u00d7 2700 mm
Total Weight	6500 kg
Engine	Diesel engine (domestic first-tier brand)

Application Scenarios

Quarry blasting holes — optimized for 90-115mm diameter, high penetration efficiency in limestone and granite
Open-pit mining — suitable for bench drilling in iron, copper and coal mines
Water well drilling — accommodates up to 138mm diameter for medium-depth well construction
Road construction — slope anchoring and foundation rock breaking

For detailed specifications, operating videos, or a factory visit, please contact our sales team. We can also arrange a site visit to an active quarry where the JK820 is currently in operation.

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