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STI 2420 Prep/Master Grinder

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  • STI-2420 Prep/Master Grinder
  • STI-2420 Prep/Master Grinder
$22,700.00
SKU:
4322420

 Product Description

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

 

 Warranty Information

Prep/Master® Warranty

Substrate Technology guarantees that its machines and products are without manufacturing defects. The warranty period on machines is one (1) year from the date of sale and the variable speed drive carries a two (2) year warranty from the date of sale. Substrate Technology will replace any part that is defective at its own cost within the warranty period. This warranty does not cover wear items or instances of abuse or neglect.

 Other Details

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:
Product Manual:

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