BDS MABasic 60R — 1700 W heavy-duty magnetic drill with MT4 spindle and 60 mm core capacity for large-bore structural steel drilling on site and in the fabrication workshop.
The BDS MABasic 60R is a heavy-duty 1700 W electro-permanent magnetic drilling machine with an MT4 (Morse Taper 4) spindle, capable of drilling core holes up to 60 mm diameter in structural steel using annular cutters. The machine's powerful magnetic base clamps to any ferrous steel surface — beam flanges, column webs, floor plates, tank shells, pipe — and holds the machine firmly in place while the operator controls the cutting feed. The 1700 W motor and high-torque gearbox provide the power needed to drive large-diameter annular cutters through thick structural steel without stalling or overheating, making this one of the most capable portable magnetic drills available for heavy fabrication work.
Multi Trade Combines supplies BDS Maschinen magnetic drilling machines from our Guwahati welding and fabrication equipment section. BDS is a specialist German manufacturer focused exclusively on magnetic drilling technology, and the MABasic 60R is their large-capacity model — suited for fabrication yards, heavy structural steel contractors, pressure vessel workshops, and industrial plant maintenance teams that regularly drill holes above 32 mm diameter where smaller machines reach their limits. Genuine BDS annular cutters (HSS and carbide grades), MT4 arbors, and coolant accessories are available from our counter.
Heavy structural steel fabrication yards in Guwahati producing bridge girders, crane runway beams, industrial building frames, and process plant skids for Northeast India's expanding infrastructure regularly drill bolt holes above 32 mm diameter in thick plate and section. The MABasic 60R handles these holes in a single pass at high production rate — far faster than step-drilling with twist drills or use of a flame-cut hole that requires dressing. For an IS 800 or AWS D1.1 bolted connection requiring M36 or M42 bolts, the hole diameter is 38–45 mm; the MABasic 60R drills these cleanly in a single annular cutter pass.
Pressure vessel and heat exchanger fabricators cutting large nozzle openings in shell plates use the 60R's capacity for holes in the 40–60 mm range that are beyond the reach of smaller magnetic drills. The MT4 spindle's positive drive means the cutter does not slip even when cutting resistance peaks as the cutter breaks through the back face of thick plate.
Oil and gas installation maintenance teams in Assam — at IOCL Guwahati refinery, OIL Duliajan, and ONGC Northeast operations — use large magnetic drills for flanged connection additions, tank nozzle insertions, and structural modifications requiring large-bore in-situ drilling. The ability to drill the hole precisely in position without dismantling the structure or pipe section saves days of production downtime. Multi Trade Combines ships BDS equipment from Guwahati to these industrial facilities across the region.
| Brand | BDS |
|---|---|
| Category | Welding Machines |
| Key specs | 60 mm core · 1700 W · MT4 spindle |
| Max core cutter diameter | 60 mm |
| Power | 1700 W |
| Spindle | MT4 (Morse Taper 4) |
| Magnet | Electro-permanent magnetic base |
| Application | Heavy structural steel, thick plate, large-bore hole drilling |
| Availability | In stock — price on request |
The MT4 (Morse Taper 4) spindle on the BDS MABasic 60R accepts Morse Taper 4 annular cutter arbors — the standard arbor used for large-diameter annular core cutters. MT4 is the taper designation used on heavier industrial drilling machines where the cutter shank must transmit high torque without slipping. For the 60 mm maximum core capacity of the MABasic 60R, the torque generated during cutting in thick structural steel is substantial; the MT4 taper provides a self-locking, positive-drive fit between the arbor and spindle that a simpler Weldon shank cannot reliably maintain at large diameters and high cutting forces. When changing cutters, a drawbar or drift pin is used to release the taper — an operation that takes seconds once familiar.
The BDS MABasic 60R is rated for annular (core) cutters from 12 mm to 60 mm diameter in its MT4 spindle — covering the full range of bolt holes in structural steel construction from M10 clearance holes (12 mm) up to M52 clearance holes (56 mm) and beyond. At full 60 mm diameter in thick structural steel plate, a powerful, heavy-duty magnetic drill like the 1700 W MABasic 60R is required — lighter machines overheat and stall at this size. For drilling holes in steel pipe, tank shells, and heavy plate for nozzle flanges, the large-diameter cutting capability of the MABasic 60R is essential, and no amount of smaller-capacity machine upgrading can substitute for the power and torque this machine provides.