The New 20" Grinders Are in Stock!
L20S7
- 7.5 hp motor
- 1 or 3 phase, 200-240V, 30A
- 518 lbs machine weight
- up to 309 lbs head pressure
L19EUS7
- 3 hp motor, single speed
- 1 phase, 200-220V, 14A
- 221 lbs machine weight
- up to 176 lbs head pressure
Why Choose a 20" Grinder?
A 20″ planetary grinder is often the best starting point for a new epoxy floor coating or concrete polishing business because it offers the right balance of cost, productivity, versatility, and transportability.
1. Lower Startup Investment
A 20″ grinder costs significantly less than larger 25″, 30″, or 32″ machines, allowing a new contractor to enter the market with less capital, preserve cash for vacuums, tooling, trailers, and reach profitability faster.
2. Ideal for Residential and Light Commercial Work – residential garages
Basements, small warehouses and retail spaces, etc. A 20″ grinder can navigate tighter areas where larger machines struggle. Actual productivity rates depend on tooling, concrete hardness, and other floor variables.
3. Easier Transportation
A 20″ machine is easier to load / unload and handle on the job site. This is important when you’re performing multiple small jobs per week.
4. Easier Learning Curve
New operators generally gain control faster, experience less fatigue, and make fewer costly mistakes. Larger grinders are more productive but require greater experience to maximize efficiency.
When to Upgrade
Consider moving to a larger grinder when:
- Most projects exceed 5,000–10,000 sq ft.
- You have multiple crews.
- Production time becomes your primary limitation.
- Commercial work becomes the majority of your revenue.

