A dragline bucket tooth wears down after months of abrasion. Rebuild it over caked rust and old weld metal, and the repair fails in weeks.
Shot blasting machines clean mining equipment parts by removing rust, scale, old coatings, and contaminants, and by leaving a uniform surface for welding, hardfacing, and painting. For Indian mining suppliers and repair shops, a hanger or rotary table machine usually handles the heavy castings and fabricated parts best.
Mining parts work in dust, moisture, and constant impact. Crusher liners, bucket teeth, conveyor rollers, and dumper frames all collect rust and thick deposits.
Coat or weld over these layers, and the new work loses grip. Corrosion then restarts under the surface. Manual grinding is slow and inconsistent on large, heavy parts.
A blast wheel throws steel abrasive at high speed onto the part. The impact strips contaminants and creates an even texture. The machine then separates dust from reusable abrasive and feeds it back to the wheel.
Hanger Type Machines
Workers hang parts like gearbox housings, axles, and small frames on hooks. The part rotates during blasting for even coverage.
Rotary Table Machines
These suit heavy or awkward castings, such as crusher components. The turning table exposes each face to the blast stream.
Blast Rooms
Large structures like dumper bodies and chassis may not fit standard machines. A blast room lets operators treat them directly.
Clean, profiled metal improves adhesion. Paint, primer, and weld deposits last longer under harsh site conditions.
Bare metal reveals cracks, pitting, and wear. Teams can decide what to repair and what to replace.
A machine cleans in minutes what takes hours by hand. Shops then handle more jobs with the same crew.
Enclosed blasting with dust extraction lowers airborne particles and reduces heavy manual grinding.
Note the heaviest and largest component you handle. Then confirm the chamber size, door opening, and lifting or table capacity can take it.
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Steel grit removes heavy rust and old coatings faster. Steel shot leaves a smoother finish. Many shops use a blend.
Mining work is tough on machines too. Choose a unit with easy access to liners and blades, plus a properly sized dust collector.
Questions to Ask Any Supplier
What are the maximum part weight and size?
How are wear parts supplied and replaced?
Is installation and operator training included?
Can the machine be customised for our part mix?
It can if settings are wrong. Correct abrasive type, wheel speed, and exposure time protect part dimensions.
For repeat work, yes. Steel abrasive recycles, so it creates less waste and lowers running cost. It also avoids the silica dust risk linked with sand.
Yes, with the right abrasive and cycle time. Ask your supplier to run a trial on your own sample part.
Good repairs and coatings start with clean metal. A well-chosen shot blasting machine speeds up work, improves weld and paint quality, and helps teams catch defects early.
Planning an upgrade? Share your part sizes, weights, and monthly workload with Airo Shot Blast Equipments, and request a sample trial before you decide.