Mercury BMT-175/300-Y BOSS Multi-Tasker Floor Machine – 1.5 HP, 175/300 RPM

BMT-175/300-Y BOSS Multi-Tasker — Dual-Speed Floor Machine for Scrubbing, Stripping, and Stone Polishing

The Mercury BOSS Multi-Tasker BMT-175/300-Y is the dual-speed, fully equipped version of the BOSS line — a single machine that replaces separate scrubbing and polishing units with switchable 175 RPM for deep cleaning and 300 RPM for high-speed polishing. It comes with three interchangeable aprons (13″, 17″, and 21″), three pad drivers (12″, 16″, and 20″), a 50-lb Unicorn weight kit for stone and marble work, and a 4-gallon solution tank — all included. The single-speed BMT-175-Y handles the same tasks at 175 RPM only; step up to the BMT-175/300-Y when both scrubbing and polishing are part of the workflow. The 50-foot power cord handles most commercial floor areas without repositioning.

BMT-175/300-Y Dual-Speed Performance, Aprons, and Weight Kit

The DC rectified motor delivers both speed settings with consistent torque — critical for stone polishing at 300 RPM, where inconsistent motor speed produces uneven gloss on marble and travertine.

• 175/300 RPM dual-speed via DC rectified 1.5 HP motor — 175 RPM for scrubbing and stripping, 300 RPM for spray buffing and high-speed polishing without switching machines
• Three interchangeable aprons (13″, 17″, 21″) — thumb-screw mount allows fast size switching to match the space without tools; included in the base package
• Three pad drivers (12″, 16″, 20″) with B/92 clutch plates — secure pad attachment at both speeds; included in the base package
• Unicorn weight kit — 5 × 10 lb weights with mounting shaft — adds up to 50 lbs of downward pressure for stone and marble restoration where pad pressure is critical to achieving consistent polish depth
• 4-gallon polyethylene solution tank with chemical-resistant hose — delivers solution through the apron to the floor during scrubbing; included in the base package
• 175-lb all-metal chassis — weight distributes evenly across the pad for consistent surface contact; heavier than most consumer machines, which is an advantage for aggressive scrubbing

BMT-175/300-Y Applications and Environments

Stone and marble restoration contractors use the BMT-175/300-Y for the full workflow from grinding to final polish without machine swaps — the 300 RPM setting at 50 lbs of added weight produces the pad pressure and speed combination needed for diamond polishing on marble and travertine in hotel lobbies, corporate offices, and upscale retail. Janitorial contractors maintaining large commercial facilities with multiple floor types — VCT in corridors, polished concrete in lobbies, carpet in offices — use the three interchangeable apron sizes to handle each surface type with the same machine. Schools and municipalities running in-house maintenance programs use it for periodic scrub-and-recoat on VCT hallways and gymnasium floors where both stripping and finishing need to happen in the same maintenance cycle.

BMT-175/300-Y RPM, Pad Pressure, and Compatible Pads

Runs at 175 RPM (scrubbing) and 300 RPM (polishing/spray buffing) with approximately 50 lbs of pad pressure from the included weight kit — suitable for spray buffing on VCT and terrazzo, and for diamond-pad polishing on stone. Use black or green pads at 175 RPM for stripping and scrubbing on VCT and concrete. Use red or white pads at 300 RPM for spray buffing and polishing. For stone polishing with diamond pads, use the weight kit at full 50 lbs on harder materials and reduce weight on softer stones like travertine. The 5-year warranty on motor, gearbox, and chassis is standard across the Mercury BOSS line.

Specifications

Documents

BMT-175/300-Y Owner’s Manual
BMT-175/300-Y Wiring Diagram
BMT-175/300-Y Sell Sheet