How to select a suitable Underground Mine Bolting Jumbo?

I. What is an Underground Mine Bolting Jumbo ?

Equipment Overview: The Underground Mine Bolting Jumbo is a new type of mechanical equipment for underground mine roadway support. This machine is used in conjunction with roadheaders and drilling-loading units, enabling rapid completion of support work, parallel operations, and improved mechanization. It is mainly used for support operations in coal and semi-coal rock roadway working faces. It can simultaneously perform bolt and cable support for the roadway roof and side walls, and also has functions such as drilling blast holes and exploration holes (for water exploration, gas exploration) within the coal seam.

Equipment Features:

① Personnel reduction, efficiency improvement, cost reduction: The number of operators is reduced from 8–12 to 3–4 people. The efficiency of single bolt/cable support operation is increased by over 40%.
② Improved safety: The drill rig is equipped with a movable, extendable advanced temporary support mechanism. Operators work under permanent support located 2 meters behind the drilling area, eliminating the hazardous condition of working under an unsupported roof. Additionally, this mechanism also functions as a rig stabilizer.
③ Reduced labor intensity: Transforms manual handheld drilling machine operation to operating hydraulic valve handles; equipped with a liftable working platform, eliminating the traditional method of scaffolding erection; the temporary support mechanism has the function of holding support materials such as metal mesh.
④ Improved support quality: Increases the support torque from 100 N·m (handheld drill) to 350 N·m, providing high bolt pre-tension force and eliminating the need for secondary manual tightening procedures.
⑤ Utilizes a variable load-sensing system with constant power control, reducing energy consumption and costs, and minimizing system heat generation.

II. What are the differences between Underground Mine Bolting Jumbo, Mine Bolting Drill Truck, and Mine Bolting Rig?

Simply put: They belong to the same category of equipment (bolting support equipment).

2.1. Are they the same type of equipment?

Broadly speaking, yes: they are all drilling machines used underground for installing bolts and providing roadway support. However, within the industry, these three terms can refer to different models, sizes, and structures depending on the manufacturer.

2.2. Specific Differences

① Underground Mine Bolting Jumbo
This equipment is large-scale, with multiple booms (single-boom, double-boom, triple-boom). Most are track-mounted, though wheeled structures are also available depending on selection. It is predominantly heavy-duty equipment with a high degree of automation. Manufacturers with mature technology can equip it with remote control functionality. It is used for high-efficiency support in large and medium-sized mines and tunnels, representing the most advanced and largest type of equipment. Most models use hydraulic drive and modular drilling-anchoring heads, integrating processes such as mesh installation, drilling, and anchor injection into a single operation. It significantly reduces the risk of manual labor and serves as the core equipment for safe and efficient mine support.
② Mine Bolting Drill Truck
Features a traveling chassis, resembling a "small vehicle + drilling rig". It is generally a single-boom, small to medium-sized unit, primarily using a wheeled traveling mechanism. With its articulated wheeled chassis design, it offers flexible steering and convenient relocation within roadways.
③ Mine Bolting Rig
This is a general term for anchor bolt drilling rigs/equipment. All bolting machines can be referred to by this name. It can be small or large, simple or heavy-duty, and does not refer to a specific type. It broadly refers to equipment used for bolting support operations in underground roadways, tunnels, etc.

III. What is the working principle of an Underground Mine Bolting Jumbo? 

1.Core Principle: Using hydraulic/pneumatic power, it combines "rotary cutting + impact breaking + thrust" to drill holes. It then automatically places the bolt, injects anchoring agent, and applies tensioning/locking to achieve active support of the surrounding rock in the roadway.

2.Support Process:
① While the roadheader is performing excavation operations at the working face, the drill rig is parked on the side wall behind the roadheader.
② After the roadheader completes one cutting cycle, it retreats and parks as close to the side wall as possible. The bolting drill rig moves to the face to perform bolting support operations.
③ After the bolting drill rig completes all bolt and cable support operations, it retracts all actuators and retreats to park behind the roadheader. The roadheader then moves forward to the working face to begin the next cutting cycle.

IV. Considerations when selecting an Underground Mine Bolting Jumbo

1.The width of the roadheader's gathering pan, used to determine the body width of the Underground Mine Bolting Jumbo, Mine Bolting Drill Truck, or Mine Bolting Rig.

2.The width and height of the roadway cross-section, used to determine the machine's structural configuration.

V. Why choose an original manufacturer

When procuring an Underground Mine Bolting Jumbo, prioritizing an original manufacturer minimizes procurement risks and maximizes the equipment's use value. Original manufacturers possess mature R&D and production capabilities. They can continuously optimize the automation and intelligent performance of the bolting jumbo according to industry technological advancement trends, such as multi-boom coordination and remote control functions, helping mines achieve efficient support and safe production. Compared to intermediaries, the product quality from an original manufacturer is more reliable. They can provide complete quality inspection reports and certifications that comply with underground operation safety standards, avoiding delays in construction progress due to equipment quality issues. Additionally, original manufacturers have a robust after-sales service system, offering on-site installation, commissioning, and ongoing maintenance services. Spare parts supply is timely, significantly reducing equipment downtime. Furthermore, long-term cooperation with an original manufacturer provides benefits such as bulk purchase discounts and technical upgrade support, maximizing the reduction of operational costs for mining enterprises.

VI. Conclusion

By choosing our company's Underground Mine Bolting Jumbo, you will receive high-quality products and star-level after-sales service. What you gain is not only reliable equipment quality and professional, efficient technical support, but also a long-term partner deeply rooted in the mining sector, consistently focused on your efficiency and safety. Leveraging years of experience in underground mining equipment manufacturing, we provide you with high-performance bolting rigs, comprehensive after-sales service, and tailored solutions. We look forward to sincere cooperation with you, working together for a win-win future!