Hydraulic jumbo drills are robust underground mining machines designed to drill multiple holes at once in rock faces, tunnels, and mine workings. Powered by hydraulics, they operate one or more drill booms equipped with rock drills, offering high precision and efficiency in underground drilling tasks.
Key features typically include:
- Flexible boom movement for horizontal, vertical, or angled drilling
- High hydraulic feed force for powerful drilling performance
- Precision angle indicators for accurate hole alignment
- Manual or remote-control systems for improved operator safety
- Support for various drill rod lengths and hole depths of several meters
- Compact design tailored for specific tunnel and drift sizes
Hydraulic jumbo drills are widely used for tasks such as blast hole drilling, ventilation shaft creation, and rock bolting. Their ability to drill multiple holes from a single setup significantly boosts productivity, drilling accuracy, and worker safety in underground environments(Welcome to Andhra Pradesh Heavy Machinery & Engineering Limited (APHMEL), n.d.).
Typical specifications include machine lengths around 7.9 meters, widths of 2.4 meters, feed forces of ~14 kN, drilling depths up to 33–41 meters, and hydraulic motor powers ranging from 55 to 75 kW. The hydraulic system ensures smooth boom operation and reliable performance in the demanding conditions of underground mining(Hydraulic Drilling Jumbos | Underground Mining Equipment Supllier, n.d.).
Imagine a highly specialized machine that carves precise tunnels deep underground! Hydraulic Jumbo Drills are the workhorses of mine development. What unique capability do these multi-boom rigs bring to a tunneling operation? Share your insights!
Reference:
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Hydraulic Drilling Jumbos | Underground Mining Equipment Supllier. (n.d.). Retrieved October 1, 2025, from http://htdrillingmachine.com/1-1-2-hydraulic-drilling-jumbo.html
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Welcome to Andhra Pradesh Heavy Machinery & Engineering Limited (APHMEL). (n.d.). Retrieved October 1, 2025, from https://www.aphmel.com/jumbo-drills.html
