Single Boom Tunnel Drilling Rig Jumbo

Jining Tongzhao Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of single boom tunnel drilling rig jumbo in China. If you're going to wholesale durable single boom tunnel drilling rig jumbo made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.

Imagine operating a piece of equipment inside a tunnel that allows you to drill holes in every direction-up, down, left, and right-without ever having to reverse or reposition the vehicle. This is exactly what the single-boom tunnel jumbo can do: its upper section rotates a full 360 degrees, while its boom arms can swing out to an arc of 30 degrees in either direction. Simply put, it's like a person tanding in one spot, able to reach out and touch any point-front, back, left, right, up, or down.

A Drilling Powerhouse

 

This machine is capable of drilling holes ranging from 42 to 76 millimeters in diameter; whether the job calls for large-diameter blast holes or smaller anchor bolt holes for structural support, it handles them all with ease. It can advance 3 to 6 meters in a single pass-equivalent to the height of a two-story building-meaning there is no need for frequent rod extensions when drilling deep holes. It can reach up to 9 meters overhead, ensuring that virtually no spot within the tunnel remains out of reach. The drill bit offers complete positional flexibility-whether drilling horizontally, diagonally, or vertically, it gets the job done.

Non-Stop Performance

 

It is equipped with a powerful 55 kW electric motor that delivers immense force. Should the construction site lack access to grid power, a four-cylinder diesel engine stands ready to take over; with two interchangeable power sources, operations proceed without interruption. The hydraulic system generates a pressure of up to 20 MPa-roughly equivalent to 20 times atmospheric pressure-ensuring the drill bit remains undaunted even when encountering the hardest rock formations.

Stable on the Move, Steady While Working

 

Now, let's discuss the chassis. The crawler chassis measures 3.0 meters in length and 2.2 meters in width, featuring 40-centimeter-wide track pads. This wide stance provides exceptional stability; even when drilling angled holes, the machine body remains remarkably steady with minimal sway. The travel motors are the robust TM10 model, providing ample power for locomotion.

Designed for Ease of Use

 

The operator's console is positioned at the base of the vehicle, allowing the driver to operate the machine while standing firmly on the ground-ensuring both clear visibility and a stable stance. During drilling, the vehicle's body is fully encased in protective steel plating, shielding critical components from flying rock fragments and debris. Additionally, the machine is equipped with a high-capacity water pump capable of spraying water up to 120 meters; this system rapidly cools the drill bit as it heats up, significantly extending the bit's service life and generating substantial cost savings.

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