Ideal for Polishing Projects up to 5,000 SF (500 M2)
The STI-2420 floor grinding machine is designed for medium-sized commercial or residential projects. This machine combines the production capacity of a larger machine with the maneuverability of a smaller grinder. Its 20HP motor has strong torque and its variable speed drive easily adjusts to different grinding or polishing conditions for concrete, terrazzo, marble, and stone applications. Available in 230V or 480V.
The moveable pocket weight system adjusts head pressure depending upon application and the standard water tank makes it easy to switch from dry to wet work. Uses four tool plates (included). Recommended for project sizes up to 5,000 SF (500m2).
Working width: 24 in. (61cm)
20 HP (14.7kW)
1 or 3 phase
Available in 230V or 480V
4 tool plates (included)
Uses 12 tools
Specifications:
- Coverage: 5,000 SF (500 m2)
- Motor: 20 HP - 3 phase (14.7kW)
- Power Source: 220/230 VAC 1 or 3 Phase, 60Hz or 380/480 VAC 3 Phase, 50-60Hz
- Power Cord: 30 ft. (9m) | 8-4
- Dimensions: 75 L x 24 W x 50 H in. (191 x 61 x 127 cm)
- Working Width: 24 in. (61 cm)
- Weight: 978 lbs (444 kg)
- Tools RPM: 300-750 RPM variable
- Tools Needed: 12
- Tools Attachment Style: EG Attachment System
- Vacuum Hose Connection: 3 in. (76 mm) (sold separately)
- Recommended Vacuum: PM3003AR
Production Rates:
- Mastic Removal: 475 SF (44 m2) per hr
- Thin Set Removal: 525 SF (49 m2) per hr
- Mil Coatings Removal: 325 SF (30 m2) per hr
- Concrete Polishing: 925 SF (86 m2) per hr
- Motor:
- 20 HP - 3 Phase | 14.7 kW
- Power Source:
- 220/230 VAC 1 or 3 Phase 60 Hz or 380/480 VAC 3 Phase 50-60 Hz
- Current:
- 53 Amp/ 37 Amp Soft Start or 22 Amp Soft Start
- Motor RPM:
- 2625 @ 90 Hz
- Power Cord:
- 25 ft / 8 m (6-4)
- Vacuum Hoses (sold separately):
- 3 in / 76 mm x 25 ft / 8m x Two
- Weight:
- 734 lbs | 333 kg
- Tool RPM:
- 250 RPM (30 Hz) to 750 RPM (90 Hz)
- Pressure on Tools:
- 650 lbs / 317 kg with weights
- Tools Available:
- All
- Dimensions:
- 70" L x 24" W x 50" H / 178 cm x 61 cm x 127 cm
- Cleaning Path:
- 24"/ 61 cm x 42"/ 106 cm sweep
- Mastic Removal:
- 450 sq ft/ 41.8 sq m per hour
- Thin Set Removal:
- 500 sq ft/ 46.4 sq m per hour
- Mil Coatings Removal:
- 300 sq ft/ 27.8 sq m per hour
- Concrete Polishing:
- 900 sq ft/ 83.6 sq m per hour
- Product Data Sheet:
- Download Product Data Sheet
- Product Manual:
- Download Manual
