JK820 Hydraulic Crawler Down The Hole Drilling Rig Machine for Quarry Mining Operations
Spec sheets are easy to write. Real-world performance is what separates a reliable drill from a headache. The JK820 has accumulated over 200 units in active field operation across quarries and construction sites in Yunnan, Guizhou, Sichuan, and Guangxi. Every improvement in the current version comes directly from operator and site manager feedback — not from a marketing department.
| Dust Control | Upgraded from single to dual-layer sealed dust hood — airborne dust reduced by over 40%, keeping the worksite compliant with environmental regulations |
| Controls | Switched from mechanical linkage to pilot hydraulic joysticks — smoother response, less operator strain over an 8-hour shift |
| Undercarriage | Track rollers increased from 5 to 7 support rollers — better load distribution on soft ground and rocky slopes |
| Hydraulic Lines | Routing optimized during revision — hoses no longer rub against frame members, hose life extended significantly |
Every JK820 ships with a consumables kit — seals, filters, grease fittings — enough for the first 6 months of routine operation.
Common spares stocked in provincial warehouses. Specialty parts shipped within 48 hours to any domestic address — export shipments via DHL/FedEx.
Engine, hydraulic pumps, and motors are all domestic mainstream models — parts available at equipment dealers in every province, not locked into a single supplier.
| Hole Diameter / Depth | 90-138 mm / 20-30 m |
| Impact Frequency | 820 bpm |
| Air Consumption | 11-17 m\u00b3/min |
| Weight / Dimensions | 6500 kg / 5100\u00d72150\u00d72700 mm |
| Engine / Chassis | Diesel / Hydraulic Crawler |
| Certification | ISO 9001:2015, CE |
Don't take our word for it. We can arrange a site visit to a working JK820 near you. Watch it drill in real rock conditions. Talk to the operator. Then decide. Contact us to schedule a visit or request a full technical datasheet.
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