Mercury BMT-175-Y BOSS Multi-Tasker Floor Machine – 175 RPM, 13/17/21" Aprons

Mercury BMT-175-Y BOSS Multi-Tasker – Single-Speed Floor Machine with Weight Kit and Solution Tank

The BMT-175-Y is Mercury's fully loaded single-speed floor machine. It runs at 175 RPM — the same scrubbing speed used on the BOSS-2 — but ships with the Unicorn Weight Kit (five 10-lb. weights) and a 4-gallon solution tank already included, eliminating the need to purchase accessories separately. The 1.5 HP A/C rectified motor drives three interchangeable apron sizes (13", 17", 21") via B/92-style clutch-plate pad drivers (12", 16", 20"), and the polished aluminum chassis adds structural mass that improves pad-to-floor contact.

BMT-175-Y Motor, Weight System, and Apron Configuration

• Motor: 1.5 HP A/C rectified — runs cool and eliminates startup torque common in DC designs
• Brush speed: 175 RPM — suited for scrubbing, stripping, and stone/marble restoration work
• Unicorn Weight Kit: five 10-lb. weights (50 lbs. total) on a central mounting shaft — adds downward pad pressure for diamond and aggressive pads
• Solution tank: 4-gallon polyethylene tank with chemical-resistant hose delivers solution directly through the apron to the floor
• Apron sizes: 13", 17", and 21" with thumb-screw mount; pad drivers in 12", 16", and 20"
• Power cord: 50-ft. 14/3-gauge safety cord — sufficient reach for large floor areas without moving the outlet
• Warranty: 5 years on motor, gearbox, and chassis

Where the BMT-175-Y Gets Used

The combination of the weight kit and solution tank makes this machine particularly effective for stone, terrazzo, and marble restoration. Contractors running diamond crystallization programs or multi-step stone polishing programs use the weight kit to apply the 30–50 lbs. of additional downward force those processes require. The 4-gallon tank handles extended wet-scrubbing runs on VCT, epoxy, and sealed concrete without stopping to manually apply solution. The 21" apron covers roughly 3,000–4,000 sq. ft. per hour at a walking pace, which suits hotel lobbies, hospital corridors, and retail floors where size matters.

Pro Application Details for the BMT-175-Y

At 175 RPM, pad selection determines the result. Black stripping pads remove finish at this speed; green and blue pads scrub without stripping; red spray-buff pads restore gloss between full burnish cycles. With the Unicorn Weight Kit installed, aggressive diamond pads for stone honing seat correctly — without enough downward pressure, diamond pads skate rather than cut. The B/92-style universal clutch plate accepts most aftermarket pad drivers. The machine weighs 175 lbs. fully loaded with the weight kit, so it stays planted and tracks straight without operator effort.

Documents

Mercury BMT-175-Y Owners Manual

Mercury BMT-175-Y Wiring Diagram

Mercury BMT-175-Y Sell Sheet