Single Boom Tunnel Drilling Rig
Single Boom Tunnel Drilling Rig

Single Boom Tunnel Drilling Rig

As anyone in the tunneling business knows, the biggest headache is inflexible equipment. Drilling an angled hole requires repositioning the vehicle; drilling a vertical hole means adjusting the angle again—you spend half the day just maneuvering the machine instead of getting actual work done. This single-boom tunnel drilling rig, simply put, gives you an incredibly flexible "arm" that can tackle any drilling angle you throw at it.
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Jining Tongzhao Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of single boom tunnel drilling rig in China. If you're going to wholesale durable single boom tunnel drilling rig made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.

 

Products Description

 

As anyone in the tunneling business knows, the biggest headache is inflexible equipment. Drilling an angled hole requires repositioning the vehicle; drilling a vertical hole means adjusting the angle again-you spend half the day just maneuvering the machine instead of getting actual work done. This single-boom tunnel drilling rig, simply put, gives you an incredibly flexible "arm" that can tackle any drilling angle you throw at it.

 

Parameter

Value

Vertical Height (M)

9–12 (with slide frame, customizable)

Engine

Yuchai turbo engine (customizable)

Engine Power

75–130KW

Electric Motor

55KW

Motor Pump

K3V90-45

Water Pump Head

120m

Upper Steering

360° rotation

Left/Right Steering

±30°

Operation Mode

Lower dual operation

Support Arm

Two-section single large arm

Power Head

Hydraulic rock drill (optional)

Drilling Angle

Horizontal / inclined / vertical

Feed Beam Stroke

3–6m (customizable)

Pressurized Motor

Hydraulic propulsion

Drilling Diameter (MM)

32–76

Front/Rear Axle

4-wheel drive

Torque Converter

310

Tire Size

880.295-20/7.5

Engine Oil Pump

40/40 high-pressure pump

Full Enclosure

Yes (including engine cover)

Oil Pressure (Mpa)

20

Outriggers

4 hydraulic legs (front left/right extendable)

Radiator

FLJ-136 Jintai

 

First, let's talk about its reach. It covers a vertical height of 9 to 12 meters, complete with a sliding carriage; if your tunnel is slightly lower or higher than that range, we can even customize the specs to suit your needs. The engine is a turbocharged Yuchai unit, offering a power output of 75 to 130 kW-you can simply choose the specific rating that best matches the working conditions at your job site. The electric motor delivers 55 kW of power, and the hydraulic pressure runs at 20 MPa-plenty of muscle to get the job done.

 

The most impressive feature of this machine is its highly agile boom. It offers a full 360-degree rotation overhead and a 30-degree lateral swing to the left and right. What does this mean in practice? You can park the machine in a single spot and, without moving it, drill vertical holes in the tunnel crown, horizontal holes in the side walls, and even angled holes with a specific incline. No more constant repositioning or tedious angle adjustments. The support arm features a two-section single-boom design, and the controls utilize a "lower dual-operation" layout-meaning the control console is positioned at ground level, allowing a single operator to clearly monitor the entire process without needing a spotter to shout instructions from the side.

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Both the drilling depth and diameter are highly practical. The feed beam offers a stroke of 3 to 6 meters, and-again-custom lengths are available upon request. The drilling diameter ranges from 42 to 76 millimeters, which is sufficient for virtually any application, whether you're installing rock bolts or setting up pipe umbrellas. The drilling feed is hydraulically driven-rather than relying on brute-force mechanical thrust-ensuring stable, steady drilling that minimizes the risk of the drill rod getting jammed.

 

The power head is equipped with a hydraulic rock drill, though you have the option to select other specific models if you prefer. The water pump boasts a head of 120meters, driven by a K3V90-32 motor pump, while cooling is handled by a Jintai FLJ-136 radiator. Even in the sweltering heat of summer-when tunnel temperatures can soar to 30 or 40 degrees Celsius-this machine will work all day long without overheating or throwing a mechanical tantrum.

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Finally, let's look at the chassis. It features a 4-wheel drive system, a 310-series torque converter, and 880/295-20/7.5 tires. Whether the terrain inside the tunnel consists of loose gravel, muddy ground, small slopes, or minor obstacles, this machine is built to handle it all with ease. It features four hydraulic outriggers-the front two of which can also extend laterally. When deployed and braced against the ground during operation, the vehicle body remains rock-steady, without the slightest wobble.
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The bodywork is fully enclosed, and the engine is fitted with a protective cover, effectively shielding it from dust and debris. The engine is equipped with a high-pressure 40/40 fuel pump.
Who is this machine designed for? Tunnel excavation teams, ground support crews, and pipe-shed construction teams. If your daily workload involves drilling dozens of holes at various angles, this single-boom drilling rig is far more agile and user-friendly than those bulky, heavy-duty machines. A single boom can accomplish the work of two-saving you both fuel and effort.

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