JK820 Crawler DTH Drilling Rig 90-138mm Hole Diameter Diesel Powered Rock Drill for Quarry Mining Applications
Price:
Negotiable
MOQ:
1 Set
Brand:
JINKE
Product Description
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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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Henan Senyao Heavy Truck International Trade Co., Ltd.
Location
34.75982954584075, 113.7674878365134
Contact Person
Zhang Jianlei