Service

At GCM, we adhere to the one-to-one targeted design of high-quality solutions, and use the professional knowledge and full-cycle services of our account managers to help customers carry out project operations, and thoroughly solve customers’ problems in equipment procurement, operating cost accounting, operation management and after-sales service. Distress, thereby improving customer profitability and achieving sustainable business development.

  • Mining Drill Rigs - Excavator Mounted Blast Hole Drilling ...

    EXCAVATOR MOUNTED BLAST HOLE DRILL is a versatile hydraulic drill rig, mounted on a TATA EX 200 LC Excavator (or equivalent) with onboard compressor, suitable for blast hole drilling in mines, can be easily accessible to drill on bench as well as below the ground level, construction works, canal works and solar projects.. Our Excavator Mounted Blast hole drill …

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  • BEST PRACTICES IN DRILL AND BLAST

    help drill and blast engineers develop more appropriate and more suitable blast designs. Engineers can create designs in the offi ce and upload them to the drill rigs ... When it comes to primers, using only one or two in a hole is acceptable. However, ... front end – from shutting down pit up until fi ring of the blast.

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  • Blaster's Training Modules - Module 4 - Blasthole Drilling

    the drill cutting from the hole, thereby advancing the hole depth at an efficient rate. The piston can either be mounted out of the hole (OTH) or down the hole (DTH) for quiet and efficient drilling. air chamber piston steel bit air chamber Rotary Drilling In rotary drilling, the rock is made to fail by means of a combination of "pull-down"

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  • Explosives Supply - Completed Projects | Action Drill & Blast

    Iron Ore: At peak 10 large rotary drills and 2 down hole hammer drills delivering blast hole drilling services. Feb 13: Dec 16: Burton: Bowen Basin, Queensland: Thiess: Coal: Provision of MPU and operators for blasting activities. Dec 14: Apr 16: Goonyella Riverside Mine: Bowen Basin, Queensland: BMA: Coal: Provision of 1 PV275 rotary drill …

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  • Halco Rock Tools - America West Drilling Supply

    The "Down the Hole" or DTH hammer is used for drilling holes through a wide range of rock types, the variety of which continues to extend well beyond the original conception of early blast hole drilling. "Down the Hole" refers to where the hammer action occurs when compared to drifter hammers, which hammer on top of the drill …

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  • Rotary Air Blast (RAB) Services - My Joomla

    Rotary Air Blast (RAB) is the simplest and most economical technique and is typically the first step in a mineral exploration project. Performed by drilling a borehole of about 3 to 3 1/2 inches, using either a drag bit or a down-hole hammer, the soil and rock samples are evacuated by air through the annulus between the drill …

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  • PRODUCTION DRILLING - Capital Drilling

    BLAST HOLE DRILLING SERVICES. Blast hole drilling requires considerable skill and technical competence . to ensure accurate holes that achieve an optimal distribution of explosive . energy. An effective blast delivers finer ore fragmentation, higher waste mining productivity and minimal down-stream costs and provides a material financial ...

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  • D55SP

    Our D55SP rotary and down-the-hole (DTH) blasthole drill is extremely productive in single-pass drilling in soft and hard rock, vertical or angle drilling. It drills holes with a diameter of 172 to 254 millimeters (6 3/4 to 9 7/8 inches), with a single-pass depth of up to 17 meters (55 feet).

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  • Drill & Blast | Mitchell Services

    Drill and Blast is run by highly experienced drill and blast engineers and former mine managers, who fully understand the safety and operational requirements of such an operation. The Drill and Blast division is able to provide the latest generation top hole, down hole and rotary …

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  • TOP 6 BRAND / Manufacturer For Drill Rigs - hardrockdrills

    Aug 06, 2018· Double and Triple Drill Rigs; Rotary Drill Rigs. Rotary Blast hole and Water Well Drills; Top 2 . 's range of surface crawlers raises the quality of rock drilling to a new level. Choose between hydraulic top-hammer, 's patented COPROD® system, or down-the-hole drilling methods. Top hammer drill …

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  • Master Drilling | Services

    Master Drilling offers a comprehensive portfolio of niched drilling services, adapting to, and meeting each and every client requirement: We offer cutting-edge solutions across the mining, energy and civil …

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  • DRILLING: adds DR410i rotary blast hole drill to ...

    Jun 22, 2020· FLORIDA – Mining and Rock Technology has introduced the DR410i rotary blasthole drill, which features high productivity with a compact footprint. The DR410i can complete 152 mm to 251 mm rotary and DTH (down-the-hole) holes, with a standard mast and offers a first pass capability of 10 metres with a maximum hole depth of 46.6 metres.

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  • Blast Hole | Venture Drilling Supply

    Blast hole drilling is used most frequently in the mineral exploration industry. The drill uses a pneumatic reciprocating piston-driven "hammer" to energetically drive a heavy drill bit into the rock. The drill bit …

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  • DR460

    Our DR460 diesel-powered, crawler-mounted rotary or down-the-hole (DTH) blasthole drill is a leader in its class, specifically designed for the highest drilling productivity, reliability and ergonomics. The high-power rotary head with various torque and speed combinations delivers performance in soft- or hard-rock applications.

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  • Drilling Consumables Supplier | Tricon Drilling Solutions

    The term blast hole drilling may sound self-explanatory to some but a working definition is still in order. Blast hole drilling refers to the activity of drilling holes of a pre-determined depth in a particular spot within a particular pattern with the objective of allowing explosive charges to be placed down …

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  • MINING - OzLand

    76mm – 311mm Drill hole capacity using Top hole hammer, Down hole hammer and Rotary drilling techniques. Inpit grade control capability with crawler mounted drills to depths of 50 metres. Tele remote drilling to allow safe access over void ground and under dangerous highwalls; High pressure and low-pressure rigs for specialised blast hole ...

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  • Down the Hole Drilling Equipment | Rock Drill Sales

    Epiroc / Blast Hole Drilling. Epiroc / ™ Down The Hole Equipment. We know that the value of a Down the Hole (DTH) hammer comes from both productivity and endurance. Our engineers have put a great deal of thought in to optimization of the entire drilling system, and we never compromise on this fact. ... Rotary Drill …

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  • 7 Rules of Thumb for Open Bit Blast Pattern ...

    Apr 08, 2018· Mineral/Ore Mined using the Hardrock Blast hole Drill, which are Heavy duty Rotary and or Down-The-Hole rigs for Blast hole drilling. It can help client to achieve the best economic and social benefit. Below is 7 rules of thumb for open bit blast pattern. 1. Burden. 25 to 35 hole diameters; 2. Spacing . size greater than 140 mm (5½") 1.2 to ...

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  • D75KS - Mining

    Our D75KS diesel-powered, crawler-mounted rotary or down-the-hole (DTH) blasthole drill is a rugged and time-tested machine ideal for applications in coal or metal mining. It drills holes with a diameter of 229 to 279 millimeters (9 to 11 inches), with a multi-pass depth of up to 53 meters (173 feet).

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  • Drill Fleet - Drill & Blast Supervisor - DML | Action ...

    Rotary Drill Drill Rod Diameter 7⅝" Manufacturer Suited to Production and bench drilling Maximum Hole Depth 59.4m Model PV275 Hole Diameter 203 – 271mm Capacity 75,000 lb pull down – 1900cfm air Fire Suppression All our drill equipment is fitted with positive discharge AFFF

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  • BlastHole Drilling Introduction - Hardrockdrills.com

    Jun 04, 2019· The drilling principle is to use a high pull down force (weight-on-bit), rotate the drill bit, and blow the rock cuttings to the surface with compressed air. Hardrock drills typically use the Rotary method to drill blastholes from 200 mm (7 7 /8") to 311 mm (12 ¼") diameter.

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  • Rotary Blast Hole Drilling Rigs | Wide Range of Rigs | Epiroc

    The most productive drill available for rotary tricone and down the hole drilling of 171mm to 270mm (6-3/4" to 10-5/8 ") holes with up to 19.2 m (63 ft) clean hole single pass capability. PV-275 The multi pass Pit Viper for holes up to 59.4 m (195 ft) deep and 171 mm to 270 mm (6-3/4" – 10-5/8") diameter, has become a staple in the ...

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