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AI Overview

A jumbo drill is a heavy-duty drilling rig, often made of iron casting for its stability and durability, that uses a large drill bit to create holes in underground mines or tunnels . This type of drilling rig is built with robust iron components and features an automated drilling system to create custom drill plans, making it efficient for large-volume production and tough rock conditions.

Jumbo Drills & Their Features

Drilling Equipment:

Jumbo drills are massive, self-propelled drilling machines used in underground mining and tunneling, often equipped with electro-hydraulic booms and sophisticated control systems.
Iron Casting Components:

The frame, booms, and other structural parts of these drills are often made from high-quality cast iron, which provides the necessary strength, stability, and mass to handle heavy-duty drilling operations.
Automated Drilling:

Modern jumbo drills offer automated features like dynamic tunneling software that creates drill plans on-site, eliminating the need for manual back-and-forth between offices and the drilling area.
High-Speed & Precision Drills:

The drills themselves, such as the HPR drill , are made from materials like solid carbide, designed for high-speed drilling in cast iron, providing high metal removal rates and superior hole quality.

This video shows how the HPR drill is used for high-speed drilling in cast iron:

Kennametal Inc. - OFFICIAL

YouTube · Oct 26, 2020

Why Cast Iron is Key

Strength & Stability:

The solid, durable nature of cast iron makes it ideal for the massive components of a jumbo drill, ensuring it can withstand the intense forces and vibrations involved in drilling through hard rock.
Cost-Effectiveness:

For large-scale drilling operations, cast iron offers a cost-effective solution for manufacturing the heavy-duty parts needed for these complex machines.
Vibration Damping:

The mass and inherent dampening properties of cast iron help to reduce vibrations, which is crucial for maintaining accuracy and ensuring the longevity of the drilling equipment.

Who uses them?

Mining Companies:

Used extensively for drilling blast holes, developing tunnels, and other underground construction projects.
Tunneling Contractors:

Ideal for creating new tunnels and expanding existing ones where traditional tunneling equipment cannot be used.

Applications

Hard Rock Drilling:

The primary application for jumbo drills, where their powerful drill bits can penetrate solid rock that would otherwise prevent standard tunneling equipment from working effectively.
Production Drilling:

The automated features and high-speed capabilities of modern jumbos make them excellent for large-volume production drilling, increasing efficiency and lowering costs per part.

Castings for Drilling and Mining | Quaker City Castings

Our experienced and knowledgeable engineers and specialists are here for one reason: to work for you. Whether you are converting a...

Quaker City Castings

VIDEO: HPR Drill: Solid Carbide Drill for Cast Iron

Feb 1, 2021 — Video Transcript. Look at this beautiful bronze color drill. This is the new HPR drill, a new solid carbide drill serie...

MSC Industrial Supply

Drill Jumbo - Products

Furukawa Rock Drill

Face drill rigs (Jumbos) - Epiroc

World-leading automation solutions for face drill rigs Boomer underground jumbo drill rigs have a variety of automation features a...

Epiroc

Drilling Jumbo - CREG TBM Germany GmbH

Drilling jumbos are common machineries used in underground mining and construction where mining requires drilling and blasting. Th...

CREG TBM Germany GmbH

Shars 10" X 5" X 6-1/2" Jumbo Ground Cast Iron V-Block ...

About this item. Shars 6 x 8 Precision Toolmakers Vise - The Equipment Hub Food Safe Drill Mixer Shars 10" X 5" X 6-1/2" Jumbo Gro...

dfainsure.com
Castings for Drilling and Mining | Quaker City Castings

Quaker City Castings
HPR Drill - Solid Carbide Drill for Cast Iron

Oct 26, 2020 — look at this beautiful bronze color drill this is the new HPR drill a new solid carbide drill series for cast iron mad...

YouTube ·

Kennametal Inc. - OFFICIAL

Kennametal Inc. - OFFICIAL

YouTube ·
Oct 26, 2020

HPR Drill - Solid Carbide Drill for Cast Iron

YouTube · Kennametal Inc. - OFFICIAL · Oct 26, 2020

YouTube
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Jumbo Drill Iron Casting

fgcrusher.com

https://www.fgcrusher.com › jumbo-drill-iron-casting

fgcrusher.com

https://www.fgcrusher.com › jumbo-drill-iron-casting

Precision-Machined Jumbo Drill Iron Casting Factory . Designed for OEM fit, tested for long-lasting performance in demanding conditions.

Castings for Drilling and Mining

Quaker City Castings

https://quakercitycastings.com › drilling-and-mining

Quaker City Castings

https://quakercitycastings.com › drilling-and-mining

Our experience in producing the best drilling castings and mining castings means we can produce not only wear-resistant, but heat-resistant parts as well.

Missing: ~~Jumbo~~ ‎| Show results with: Jumbo

The new drill for cast iron from drilling experts Kennametal

YouTube · MTDCNC

4.1K+ views · 4 years ago

YouTube · MTDCNC

4.1K+ views · 4 years ago

9:18

This drill is a material specific design for highest cutting parameters and longest two life.

4 key moments 4 key moments in this video

From 00:52

Indexable Drills

From 02:07

Why this Drill Was Brought to the Marketplace

Missing: ~~Jumbo~~ ‎| Show results with: Jumbo

jumbo drilling a round + 2 slashes narrated

YouTube · Jory Dion

9.5K+ views · 2 years ago

YouTube · Jory Dion

9.5K+ views · 2 years ago

12:19

We're going to drill around in two slashes here with the Sandvik 422i.

VIDEO: HPR Drill: Solid Carbide Drill for Cast Iron

MSC Industrial Supply

https://www.mscdirect.com › knowledge-center › articles

MSC Industrial Supply

https://www.mscdirect.com › knowledge-center › articles

Feb 1, 2021 — Kennametal introduces its HPR drill , a new solid carbide drill series for cast-iron made for high-speed, high-feed precision drilling.

Missing: ~~Jumbo~~ ‎| Show results with: Jumbo

Shars 10" X 5" X 6-1/2" Jumbo Ground Cast Iron V-Block ...

dfainsure.com

https://www.dfainsure.com › X-5-quot-X-6-1-2-quot-Ju...

dfainsure.com

https://www.dfainsure.com › X-5-quot-X-6-1-2-quot-Ju...

Food Safe Drill Mixer Shars 10" X 5" X 6-1/2" Jumbo Ground Cast Iron V-Block Heavy Duty Pair For Drill.

$28.00 (1,223)

Cast Iron Burnishing Drill Overview

Allied Machine and Engineering

https://www.alliedmachine.com › Solid-Carbide › Cast-I...

Allied Machine and Engineering

https://www.alliedmachine.com › Solid-Carbide › Cast-I...

Superion burnishing drill geometry used in cast iron applications with a straight flute design ideal for use on lathes.

Missing: ~~Jumbo~~ ‎| Show results with: Jumbo

Liberty Casting: American Cast Iron Foundry | Ductile Iron ...

Liberty Casting

https://libertycasting.com

Liberty Casting

https://libertycasting.com

Large iron casting, with a daily melt of 90 tons and melt capacity up to 12,000 pounds, at our Liberty Casting facility. Learn More. Automated casting, with a ...

Missing: ~~Jumbo~~ ‎| Show results with: Jumbo

Casting an iron wheel

YouTube · Matthias Burger

1.8M+ views · 10 years ago

YouTube · Matthias Burger

1.8M+ views · 10 years ago

9:52

In the video "making a casting model" I have shown the first step of how to get an cast iron wheel . Here ist Part 2 with the molding and ...

7 key moments 7 key moments in this video

From 00:25

Preparation of the mold

From 03:34

Separating the pattern from the mold

Missing: ~~Drill~~ ‎| Show results with: Drill

Heavy-Duty Jumbo Drill Damper for Atlas Copco Machines

Made-in-China.com

https://ugheavymachinery.en.made-in-china.com › Chi...

Made-in-China.com

https://ugheavymachinery.en.made-in-china.com › Chi...

Mar 5, 2025 — It can be used for drilling of blasting holes, anchor holes, and slotted holes . There is also a platform available, which can be used in the ...