Mining & Blast-Hole · India
Heavy-duty bits for open-pit and underground mining — blast-hole, exploration and production drilling — built for high-impact loads and abrasive Indian hard rock.
Engineered for Coal India (CIL) open-pit benches, iron-ore in Odisha, Jharkhand and Chhattisgarh, and air-flush-preferred dry drilling. Where small-diameter hard-rock holes call for down-the-hole (DTH) hammers, our carbide button-bit context complements the rotary tricone and FDC range.
Product Range
Three core families of Volgaburmash mining tooling for India's open-pit and underground operations — air-flush tricone, pilot and FDC fixed-cutter bits.
Tricone roller cone configured for air-flush blast-hole drilling, with enlarged air channels and heavy-duty TCI inserts for high weight-on-bit and percussion. It clears cuttings without liquid — saving water on dry Indian benches.
Guide section for large-diameter hole-opener and reamer assemblies, with a reinforced gauge and heavy-duty bearings to absorb side loads. Available in both tricone and fixed-cutter designs.
Fixed diamond-cutter design — PDC cutters on a robust steel body with aggressive blades. Delivers higher rate of penetration than tricone in suitable rock and eliminates bearing failures.
Where They Work
From open-pit blast-hole benches to exploration and quarrying, VBM India bits are matched to the formation and the flushing method on the ground.
The primary application — 152–311 mm holes drilled on 10–25 m benches in open-pit coal (CIL subsidiaries) and iron-ore, then loaded with explosives. Bits are optimized for maximum footage in high-duty-cycle production fleets.
Many Indian hard-rock benches — Deccan basalt and granitic iron-ore — use down-the-hole (DTH) hammers with carbide button bits for smaller holes, while rotary tricone and FDC bits dominate larger blast-holes. These are complementary methods; see our guide for a full comparison.
Exploration ground spans varied geology, from soft weathered overburden to hard crystalline basement. Reliable, long-life bits cut the number of bit changes per hole and keep core and reverse-circulation programmes on schedule.
Quarrying demands straight, clean holes and tight gauge holding for accurate blast patterns and predictable fragmentation — producing the crushed aggregates feeding India's infrastructure boom.
India is the world's second-largest coal producer, and the scale of its mining ambition is written into the ground. Coal India Ltd (CIL) and Singareni Collieries (SCCL) operate some of the planet's largest open-pit blast-hole fleets across the coalfields of Jharia, Korba, Talcher and Singrauli, where benches are advanced day and night to feed thermal power and steel. Each of those benches starts with a drill bit, and the choice of bit decides cost-per-tonne as surely as the explosive that follows.
Open-pit production drilling typically calls for 152–311 mm blast-holes on 10–25 m benches. In the soft overburden and coal seams, air-flush tricone bits and FDC fixed-cutter bits both shine: dry benches favour air flushing, which clears cuttings without water and keeps holes clean for charging. Where the rock turns to hard Deccan basalt or granitic iron-ore, the economics often shift toward DTH button bits running down-the-hole hammers — a method that delivers straight, fast small-diameter holes in abrasive crystalline ground.
Iron-ore drives a second front. The hematite belts of Odisha, Jharkhand, Chhattisgarh and Karnataka — including the Bellary-Hospet sector — present hard, abrasive ore that punishes gauge and bearings. Here the grade of tungsten carbide buttons matters enormously: insert geometries and carbide grades are chosen to balance impact toughness against abrasion resistance, so a bit survives the percussive load without rounding off its gauge row prematurely.
Matching method to formation is the core skill. Our comparison of DTH and tricone drilling explains when a hammer beats a rotary bit and when it does not, while the operating engineer's view of insert selection lives in our blast-hole carbide guide. The short version: tungsten-carbide insert grades are selected for impact in fractured, blocky rock and for abrasion in hard, competent rock — the wrong grade fails fast either way.
VBM India supplies the full Volgaburmash mining range through hubs in Hyderabad and Gujarat, keeping common blast-hole sizes within reach of the major coal and iron-ore districts. Whether you run rotary air-flush tricone bits, FDC fixed-cutters on production holes, or carbide button bits on DTH hammers, the team can spec the right tool for your formation, recommend the matching insert grade, and quote availability and lead time so your fleet never waits on tooling.
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Tell us your hole size, bench geometry, formation and flushing method, and the VBM India team will recommend the right air-flush tricone, pilot or FDC bit — with availability, lead time and pricing.
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