Jiangxi Zhongrun Mining Equipment Manufacturing Co., Ltd.
Specializing in the design and manufacture of equipment for mining and tunneling.
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Tunnel Drilling Jumbo

As the professional manufacturer of drilling rigs in China, Zhongrun provide high quality tunnel drilling jumbo for your different working conditions, we mainly supply Wheel Drilling Jumbo, Crawler Drilling Jumbo, single/double boom drilling jumbo, etc.

A tunnel is an underground passageway, completely enclosed except for openings for ingress and egress, commonly at each end.

There are three basic types of tunnel construction in general:

1. Cut and cover tunnel which is constructed in a shallow trench and then covered over.

2. Bored tunnel that is constructed in situ without removing the ground above. They are usually of circular or horseshoe cross-section.

3. Immersed tube tunnels, sunk into a body of water and sit on, or are buried just under, its bed. Here we mainly use drilling jumbo and road header as tunnel excavation equipment to excavate a tunnel cross-section around 3.8m×3.8m to 6m×6m.

Tunnel Drilling Jumbo

In the tunnel construction, these factors such as the ground conditions, the ground water conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logical supporting of the tunnel excavation, the final use and shape of the tunnel and appropriate risk management should be considered when choosing tunnel excavation equipment. By using the tunnel excavation equipment, the tunnels are dug from soft clay to hard rock.

Face drilling rigs, commonly called "drill jumbo's", are large, single or multi-boom machines used in underground hard-rock mines. Booms typically have six control axes to position and orient the boom tip at the rock face, to drill long holes for blasting which follow the trajectory of the ore body. Control is via a series of single axis levers and two axis joysticks, along with various push-buttons. The face drilling rig can be matched tunnel excavator and backhoe loader.

Tunnel face drilling rig

1, Divide by traveling mode: Tyre, crawler, rail.

2, Divide by working gradient: Big slope, level surface.

3, Divide by power supply: Dual power of diesel and electrical motor, electrical motor power.

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