Sunmax RT50 22 in
#1 in 17 in and upFull review
A wide battery scrubber that runs a whole shift on a charge, for warehouses, factories and gyms. It has the longest runtime here.
Amazon $2,299$2,299
The Sunmax RT50 22 in is the better floor scrubber overall, rated 4.1 to 3.4. The Sunmax RT50 22 in leads on cleaning path, runtime and recovery tank. The Sunmax RT35 costs $300 less ($1,999 vs $2,299).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Sunmax RT35
#6 in 17 in and upFull review
A mid-size battery scrubber for schools, offices and retail aisles that need a few hours of cleaning per charge at an import price.
Amazon $1,999$1,999
Which should you buy?
- Choose the Sunmax RT50 22 in for cleaning path (22 in cleaning path vs 17 in cleaning path), runtime (5 h per charge vs 2.5 h per charge) and recovery tank (14.5 gal recovery tank vs 9.2 gal recovery tank).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 17 in and up floor scrubber; a clear win is highlighted. How we rank explains each one.
| Factor weight | Sunmax RT50 22 in | Sunmax RT35 |
|---|---|---|
| Overall rating | 4.1/5 | 3.4/5 |
| Value 30% | 71 $104.50 per inch of path ($2,299, 22 in) | 65 $117.59 per inch of path ($1,999, 17 in) |
| Cleaning path 20% | 85 22 in cleaning path | 46 17 in cleaning path |
| Recovery tank 15% | 99 14.5 gal recovery tank | 82 9.2 gal recovery tank |
| Runtime 15% | 100 5 h per charge | 57 2.5 h per charge |
| Noise 5% | 50 sound level not published (neutral score used) | 50 sound level not published (neutral score used) |
| Warranty 15% | 25 2-year parts warranty | 25 2-year parts warranty |
Specifications
| Sunmax RT50 22 in | Sunmax RT35 | |
|---|---|---|
| Cleaning | ||
| Cleaning path | 22 in | 17 in |
| Squeegee width | 31 in | 22 in |
| Brush speed | 200 rpm | - |
| Maker productivity claim (not scored) | 30,000 sq ft/h | 19,000 sq ft/h |
| Tanks | ||
| Solution tank | 13.2 gal | 7.9 gal |
| Recovery tank | 14.5 gal | 9.2 gal |
| Power | ||
| Power | Battery | Battery |
| Voltage | 24 V | 24 V |
| Runtime per charge | 5 h | 2.5 h |
| Build | ||
| Weight | 330 lb | 132 lb |
| Parts warranty | 2 years | 2 years |