Name: China Tunnel Rock Bolting Rig Manufacturers Factory - Customized Tunnel Rock Bolting Rig - Tongzhao
Brand: Tongzhao
SKU: 303019146

Jining Tongzhao Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of tunnel rock bolting rig in China. If you're going to wholesale durable 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

One of the greatest advantages of this machine is its versatility regarding power sources.

What does that mean? It is equipped with two distinct power systems: one is a 91 kW Yuchai 4108 diesel engine, and the other is a 55 kW electric motor. When working on a site with access to electricity, you can simply plug it in to operate-saving on fuel costs. Conversely, when deployed in a tunnel without power access, you can switch to diesel power, and the machine continues to perform just as effectively. There is no need for cumbersome component swaps, ensuring a hassle-free operation.

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

Now, let's look at the chassis. It features a 4-wheel drive system with a top speed of 18km/h and utilizes a fail-safe air-brake system. The front and rear axles are model WL96-H2A-Q2A, fitted with 880/295-20/7.5 tires, allowing the rig to traverse gravel, muddy terrain, and steep ramps with ease. It is equipped with four hydraulic outriggers-the front two of which can extend laterally-firmly anchoring the machine to the ground during operation to ensure a rock-steady, vibration-free platform.

The machine boasts a vertical working range of up to 9meters (including the feed beam assembly). Standing at ground level, you can effectively drill anywhere within a 9-meter vertical radius above you. During typical operations, the working height hovers around 8meters-an ergonomic range that offers an optimal line of sight, eliminating the need to constantly crane your neck upward.

It is capable of drilling to a depth of4 meters in a single pass. Unlike cumbersome systems that require drilling in segments and adding extensions, this machine achieves the full depth in one continuous motion. Furthermore, the drill head features an additional 1m of compensation travel; this means that if the drill bit falls just short of the target depth, the feed beam can extend forward slightly to bridge the gap.

Drilling angles are fully adjustable. Whether drilling horizontally, vertically, or at an incline, the machine handles it all with ease. When encountering anchor bolt holes oriented in different directions, you can simply adjust the drilling angle without needing to reposition the entire vehicle.

Two types of power heads are available for selection: a hydraulic rotary head, suitable for standard rock formations, and a rock drill (percussive head), ideal for penetrating hard rock. You can choose the option best suited to the specific geological conditions of your job site.

The hydraulic system utilizes a triple-pump configuration (63/32/32). Each of the three pumps performs a dedicated function-controlling travel, drilling, and steering, respectively-ensuring that hydraulic flow is never compromised by competing demands.

For thermal management, the machine employs an oversized dual-hydraulic radiator system. Even after half a day of continuous operation within a tunnel environment, the hydraulic lines remain cool to the touch.

Steering control is segmented: a 17-inch motor located at the base handles the rotation of the entire vehicle body, while a 14-inch motor positioned higher up manages the fine-tuning of the drill frame's alignment. This independent control system allows for highly agile and precise maneuvering, particularly within the confined spaces of narrow tunnel cross-sections.

The overall dimensions of the vehicle are 9.8 meters in length, 2meters in width, and 2.75meters in height. It's a bit longer, but the chassis is wider-which actually makes it run even more stably.

To be honest: this rock bolting rig is designed specifically to save trouble for the people doing the work. If power is available, use electricity to save on fuel costs; if there's no power, switch to diesel and keep working just the same. With its wide chassis, it stands firm and steady; it can drill 4 meters in a single pass, and the drilling angle is fully adjustable. When it comes to installing rock bolts in tunnels, using this machine makes the job completely hassle-free.

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