Description
Product Overview
The Mercury PRO21 PRO-175-21 floor machine is engineered for high‑performance floor polishing in demanding commercial environments. Powered by a precision‑balanced 1.5 HP, 66‑frame motor, the unit delivers consistent torque through a triple‑planetary transmission, ensuring smooth operation at 175 RPM. Its 20‑inch full‑wrap brush provides extensive coverage, reducing pass‑times and increasing productivity. The machine’s robust steel frame, non‑marking bumpers, and interchangeable pad drivers are designed for durability, while the safety‑enhanced interlocking switch prevents accidental start‑up. Fully adjustable handles accommodate operators of varying heights, promoting ergonomic use and reducing fatigue during extended cleaning sessions.
![[Product front view showing all components]](https://www.studiofinds.store/wp-content/uploads/2026/07/5a8fa6417cb34b628199965fdeb06ec0.jpg)
Usage
This floor machine excels in a variety of commercial settings, including retail stores, hotels, hospitals, schools, and large office complexes. Its powerful motor and large brush diameter make it ideal for polishing marble, terrazzo, polished concrete, and resilient flooring. Janitorial and maintenance teams can rely on the PRO21 to quickly restore shine to high‑traffic areas, while the adjustable handle and lightweight design (68 lb) enable easy maneuverability around obstacles and tight spaces. The machine is also suitable for routine maintenance cleaning, providing a versatile solution for daily floor care programs.
Why Choose Us
Choosing the Mercury PRO21 means investing in a product backed by over a decade of industry experience and a reputation for reliability. Mercury Floor Machines manufactures each unit with rigorous quality control, ensuring that every component—from the motor to the brush housing—meets exacting standards. The machine’s heavy‑duty construction reduces downtime, while the safety interlock and easy‑service design simplify maintenance. Additionally, Mercury offers responsive customer support, comprehensive warranty coverage, and access to genuine replacement parts, guaranteeing long‑term value for your cleaning operation.
Key Features
- 1.5 HP high‑torque motor delivers fast, even polishing on large floor areas.
- 20‑inch full‑wrap brush provides extensive coverage, reducing pass‑times.
- Heavy‑duty 66‑frame construction ensures durability and long service life.
- Safety‑enhanced interlocking switch prevents accidental start‑up for operator protection.
- Responsive customer support and easy access to genuine parts for hassle‑free after‑sales service.
FAQ
What type of flooring is the PRO21 suitable for?
The machine works well on marble, terrazzo, polished concrete, vinyl, and other resilient surfaces commonly found in commercial environments.
Can the brush be replaced with different pads?
Yes, the full‑wrap brush is compatible with a range of pad drivers and pads, which can be purchased separately to match specific polishing needs.
How often should the machine be serviced?
Regular maintenance, such as cleaning the brush housing and checking the motor ventilation, is recommended after every 50‑hour use. A full service is advised annually or as needed based on usage intensity.
Is the machine easy to transport between floors?
Weighing 68 lb and featuring a compact footprint (20.75 × 25.75 × 49 in), the PRO21 can be moved with a standard hand truck or cart, making it convenient for multi‑site facilities.
What warranty does Mercury provide?
Mercury offers a standard one‑year limited warranty covering defects in materials and workmanship, with options to extend coverage through authorized service plans.





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