Prep/Master 2420 Electric

Electric - for Projects up to 5,000 SF/465 m2

Prep/Master® 2420 (Electric Model)

Ideal for Polishing Projects up to 5,000 SF/ 465 M2

The STI-2420 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 (465m2).

2420 220V/230V = Item #432420230
2420 380V/480V = Item #432420480

Motor 20 HP - 3 phase | 14.7kW
Power Source
220/230 VAC 1 or 3 Phase, 60Hz
380/480 VAC 3 Phase, 50-60Hz
Weight 978 lbs | 444 kg
Dimensions 75"L x 24"W x 50"H
191cm x 61cm x 127cm
Tools Needed 12
Tools RPM 250 RPM to 750 RPM variable
Tools Attachment Style EG Proprietary Attachment System
Vacuum Hose Connection 3 in. (76mm) (sold separately)
Recommended Vacuum Red Raider (360CFM) with pre-separator or equivalent
Power Cord
30 ft. | 9m (8-4)

Production Rates
Mastic Removal 475 SF / 44 M2 per hour
Thin Set Removal 525 SF / 49 M2 per hour
+/-25 Mil Coatings 325 SF / 30 M2 per hour
Concrete Polishing 925 SF / 86 M2 per hour

2420 Machine Manual
Download Machine Manual
2420 Sales Flyer
More Information
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Repair Kits for Emergencies

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