KJ310 Underground Hydraulic Drilling Rig for Mining Development & Tunnel Excavation
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Products Description
KJ310 Hydraulic Tunneling Jumbo – Versatile, Powerful, Built for Medium-Sized Tunnels
The KJ310 hydraulic tunneling jumbo is a high-performance underground drilling rig engineered for mining development, tunnel excavation, and civil construction projects in hard rock conditions. Designed to handle face sections from 12m² to 35m², it delivers reliable, efficient drilling for vertical, inclined, and horizontal blast holes with exceptional coverage and precision.
Universal Boom for Maximum Coverage
At the heart of the KJ310 is its heavy-duty universal boom, engineered for optimal face coverage with a single setup. The boom is multi-purpose: in addition to face drilling, it can perform lateral crosscut drilling and rock bolting operations – eliminating the need for additional equipment in medium-sized headings.
Precise Positioning, Fast Drilling
The feed beam features 360° rollover and automatic parallel holding, enabling rapid, precise hole positioning without manual adjustment. This significantly reduces positioning time and ensures consistent drilling accuracy across the entire face, improving overall cycle efficiency.
Articulated Chassis for Narrow Drifts
The balanced, four-wheel drive articulated oscillating chassis provides exceptional maneuverability, speed, and safety in underground drifts. With 20° climbing capacity and a compact 10250×1800×2000mm transport profile, it navigates confined spaces with ease while maintaining stability during drilling operations.
Powerful and Efficient Rock Drill
Equipped with a high-frequency hydraulic rock drill delivering 13-22kW impact power (depending on configuration), the KJ310 ensures fast penetration rates in hard rock. The reliable power unit and robust drifter design reduce steel consumption and increase equipment availability – directly lowering cost per meter.
Operator-Friendly Design
The rig layout ensures excellent operator visibility, while the spacious working platform and automatic functions allow the driller to focus fully on safe, accurate, high-speed drilling. All service points are well-protected yet easily accessible, minimizing downtime.
With a 13500kg operating weight and proven reliability, the KJ310 is a cost-effective, high-performance alternative to international brands such as Atlas Copco Boomer 282 and Sandvik DD311, backed by competitive Chinese factory pricing and global after-sales support.
| Section | Item | Specification |
|---|---|---|
| Dimensions and weight | Length | 10250 mm |
| Width | 1800 mm | |
| Height | 2000 / 2730 mm | |
| Weight | Approx. 13500 kg | |
| Travelling speed on flat ground | 2.5 km/h | |
| Maximum climbing capacity | 20° | |
| Safety protection | Noise level | < 100 dB(A) |
| Lifting safety roof | FOPS & ROPS certified, meets anti-rollover and rockfall protection requirements | |
| Air & water system | Air compressor | DLGF 0.7/8-5.5(B) |
| Capacity of air compressor | 0.7 m³/min | |
| Pressure | 8 bar | |
| Device of shank lubrication | Electronic pulse lubrication pump | |
| Air consumption of lubrication | 0.3 m³/min | |
| Oil consumption of lubrication | 180-250 g/h | |
| Power of water pump | 4 kW | |
| Capacity of water pump | 5.8 m³/h | |
| Chassis | Diesel engine | Cummins B3.9CS4-80C (59 kW / 2500 rpm) |
| Drive system | Closed hydraulic system for four-wheel driving | |
| Swing of rear axle | ±10° | |
| Steering mechanism | Articulated steering: ±40° | |
| Travelling braking | Two-circuit hydraulic brake | |
| Parking braking | Wet multidisc brake of reducer | |
| Fuel tank | 34 L | |
| Drilling system | Rock drill | HC50 / HC95 / YYG18U / HC95LMH / YYG22U |
| Rod size | R38 / T38 | |
| Impact power | 13 kW (HC50) / 20 kW (HC95) / 18 kW (YYG18U) / 21 kW (HC95LMH) / 22 kW (YYG22U) | |
| Impact frequency | 62 Hz (HC50) / 62 Hz (HC95) / 57 Hz (YYG18U) / 62 Hz (HC95LMH) / 53 Hz (YYG22U) | |
| Hole diameter | Φ32-76 mm (HC50) / Φ42-102 mm (others) | |
| Beam rotation | 360° | |
| Feed extension | 1600 mm | |
| Model of drill boom | K26F | |
| Form of drill boom | Self-leveling | |
| Boom extension | 1200 mm | |
| Electric hydraulic power unit | Motor | 75 kW |
| Impact/Feed/Positioning | Axial variable displacement piston pump | |
| Rotation | Gear pump | |
| Filter fineness | 10 μm | |
| Hydraulic oil tank | 240 L | |
| Hydraulic cooler | Water cooler | |
| Working voltage | 380 V | |
| Frequency | 50 Hz | |
| Starting method | Star-delta / Star-triangle | |
| Cable specifications | 3×50+3G10 |
Contact us today for KJ310 specifications, quotation, or dealer inquiries.
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