Jining Tongzhao Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of specialized tunnel rock bolting rig in China. If you're going to wholesale durable specialized tunnel rock bolting rig made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Products Description
Rock bolting is the backbone of modern tunnel support systems. Together with shotcrete, rock bolts form the primary support mechanism that keeps underground excavations stable and safe.
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13-15 meters double-arm tunnel parameter table |
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Vertical Height (m) |
13–15 (including 4 m stroke slide frame) |
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Diesel Engine Model |
Four-cylinder Yuchai |
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Engine Power / Speed |
75–130 kW / 2600 r/min |
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Electric Motor |
55 kW |
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Motor Pump |
K3V90-45 |
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Pump Head |
120 |
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Upper Swing |
17-inch 360° |
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Lower Swing |
360° rotation |
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Lower Turntable (m) |
1 |
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Operation Mode |
Dual lower operation, lower cab operation, and blue frame remote control operation |
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Support Arm |
2-section single boom |
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Working Platform Arm |
2-section single boom |
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Power Head Type |
Dual hydraulic power head / hydraulic rock drill (optional) |
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Drilling Angle |
Drills horizontal / inclined / vertical holes |
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Chain-type Slide Frame |
4 m per drill |
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Pressurizing Motor |
1000 |
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Drilling Diameter (mm) |
42–89 |
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Travel Motor |
TM22 |
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Track (mm) |
4000–2600 |
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Track Shoe Width |
400 |
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Engine Oil Pump |
High-pressure pump 63/32/32 |
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Outriggers |
Four fixed hydraulic outriggers |
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Enclosure |
Full enclosure (including engine cover) |
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Oil Pressure (MPa) |
20 |
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Radiator |
Heavy-duty dual fan FLJ-136 Jintai |
A specialized tunnel rock bolting rig is not a generic drilling machine. It is an engineered solution purpose-built for one critical task: installing rock bolts efficiently, accurately, and safely in underground environments. Unlike standard drill rigs adapted for bolting work, a dedicated rock bolting jumbo integrates drilling, bolt handling, and sometimes mesh installation into a single, streamlined operation.
This comprehensive guide covers everything you need to know about specialized tunnel rock bolting rigs: what they do, what features matter most, how they are used across different projects, and what to look for when making a purchasing decision.
A tunnel rock bolting rig - often referred to as a bolting jumbo - is a mobile, self-propelled machine designed specifically for drilling bolt holes and installing rock bolts in underground tunnels and mines. These machines are typically mounted on crawler tracks or wheels and equipped with:
- Hydraulic rock drills for precise hole drilling
- One or multiple drilling booms for positioning flexibility
- Bolt handling systems for automated or semi-automated bolt installation
- Hydraulic power systems that drive all machine functions
- Operator cabins with ergonomic controls for safe, efficient operation
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