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.
| Attribute |
Details |
| Model |
BMT-175-Y |
| Motor |
1.5 HP A/C Rectified |
| Brush Speed |
175 RPM |
| Apron Sizes |
13", 17", 21" (thumb-screw mount) |
| Pad Driver Sizes |
12", 16", 20" (B/92 clutch plate) |
| Unicorn Weight Kit |
5 × 10 lb. weights, mounting shaft (included) |
| Solution Tank |
4-gal. polyethylene, chemical-resistant hose (included) |
| Chassis |
Polished Aluminum |
| Operating Wheels |
6" Non-Marking, Fixed |
| Power Cord |
50-ft. 14/3-gauge safety cord |
| Machine Weight |
175 lbs. |
| Warranty |
5 years on motor, gearbox, and chassis |
Documents
Mercury BMT-175-Y Owners Manual
Mercury BMT-175-Y Wiring Diagram
Mercury BMT-175-Y Sell Sheet
