Industry Background

Scaling — the process of removing loose rock from tunnel walls and roofs after blasting — is one of the most dangerous jobs in underground mining. For decades, miners used hand tools like metal bars to pry loose rocks down. The work was slow, physically demanding, and put workers directly under unstable ground. Falls of ground remain one of the leading causes of fatalities in underground mining. That is why mines around the world are switching to mechanized scaling equipment.

Purpose-built scaling jumbos are now replacing manual methods. These machines let operators work from a protected cabin or even remotely, well away from the danger zone. The shift to mechanized scaling is not just a safety upgrade — it is a productivity improvement too.

Key Challenges in Traditional Scaling

Workers are directly exposed to rockfall: Manual scaling requires workers to stand directly under the face they are clearing. Loose rock can fall at any moment, causing serious injury or death.

Manual work is slow and inconsistent: A worker with a scaling bar can only reach so high and work so fast. The quality of the work depends on the skill and energy of the individual. Missed loose rock can cause failures later.

The work is physically punishing: Swinging a heavy steel bar overhead for hours is exhausting. Workers tire, and fatigue leads to mistakes.

Non-specialized equipment is not the answer: Some mines use excavators or drill rigs for scaling work. As industry experts point out, these machines are not designed for the job. Using non-purpose-built machines may seem cheaper upfront, but they often lead to longer cycle times and compromise safety.

Beijun Solution: Scaling Jumbo for Safer, Faster Underground Work

Beijun Group provides a range of scaling equipment designed to replace manual scaling with machine power and precision. The scaling jumbo is purpose-built for the job — unlike repurposed excavators or drill rigs.

Remote operation keeps workers out of the danger zone: Operators can control the scaling jumbo from a safe distance using a remote control system. This is a major shift from traditional methods. As one mine operator noted after introducing remote scaling equipment, "The operator works within a safe area, significantly reducing operational risks and improving efficiency."

Purpose-built for scaling: The scaling jumbo is designed specifically for scaling work. It features an articulated boom that reaches high walls and roofs with precision. Compared to repurposed equipment, a dedicated scaler can shorten cycle times by completing scaling faster and allowing production equipment to return to work sooner.

Mechanization replaces manual labor: Purpose-built scaling machines have been shown to deliver "hundreds of times" the efficiency of manual methods. The machine does the heavy work, so workers do not have to.

Safety features built in: Modern scaling jumbos are equipped with features like FOPS/ROPS certified cabins, dust suppression systems, and emergency escape functions. In the remote operation model, the operator is not even in the cabin, removing the risk entirely.

Compliance and certification: Beijun scaling equipment carries China Mining Safety (KA) and EU CE certification, meeting international standards for underground mining equipment.

Beijun Group manufactures Scaling Jumbos, Underground Dump Trucks, Wet Shotcrete Machines, Rock Drilling Jumbos, and a full range of mining support equipment. Contact us to learn more about how we can support your operations.

Real-World Impact: Mechanized Scaling in Action

Across the industry, the shift to mechanized scaling is delivering clear results. In China's Ansteel Mining Mengku Mine, the introduction of remote-controlled scaling equipment marked a major step forward in safety and efficiency. The remote operation capability was highlighted as a key feature that "significantly reduced operational risks and improved efficiency."

In another example, a mining company identified a serious safety violation when they found a team using manual scaling methods without approval. The company immediately ordered the use of a scaling jumbo to handle the loose rock before any workers were allowed back into the area. This incident shows the growing industry recognition that mechanized scaling is not just an option — it is the standard for safe operations.

Major mining operations are increasingly replacing manual scaling with mechanized solutions. Industry reports note that "scaling machines replacing manual scaling, carrier-mounted charging replacing manual carrying, and hydraulic drills replacing manual drilling" have all contributed to massive productivity gains of "hundreds of times" over traditional methods.

Client Feedback

"The remote scaling jumbo has completely changed how we approach ground support. Our operators work from a safe distance instead of standing under unstable rock. The machine covers more area in less time, and we have not had a scaling-related incident since we put it into service. For underground safety, this is a game-changer." — Mine Operations Manager, underground metal mine

Contact Beijun Group

Email: beijun@beijun-group.com
   Phone: +86 17854788133
   Website: www.beijun-group.com