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Prep/Master Jr. Floor Grinding Machine

Prep/Master® Jr. Floor Grinding Machine

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Product Code: SPS102

Ideal for Polishing Projects up to 1,000 SF (100 M2)

Our customers' favorite little grinder! The Prep/Master® Jr.floor grinding machine by STI works extremely well in small, hard-to-reachareas that requires a more compact design — perfect for residential garage floorsand basements.

This grinder is very aggressive, yet extremely easy tooperate due to the smooth operation of the STI rotary gear system. In addition,the low price of the Prep/Master Jr. is very affordable and fits any projectbudget.

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Working width: 23 in. (58cm)
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7.5 HP (5.6kW)
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220-240V Single Phase, 40A
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450 lbs. (204 kg) including pocket weights
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2 tool plates (included)
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Uses 6 tools

Special Features

Heavy head pressure for a better grind and polish — 60% ofits weight is on the head!

Magnetic LED Light to illuminate front of machine or behindmachine on the cutting path

Easy disassembly of machine into two sections for easiertransportation

(Grinding head = 260 lbs. / Handle = 130 lbs. / Two PocketWeights = 30 lbs. each)

Screw-in Carrying Poles for two-three person lifting

8-gallon (30 liters) water tank

On-board USB Charger & Phone Carrier

Machine Specs -Electric

Coverage: Up to 1,000 SF (100 m2)

Power Source: 220-240V Single Phase, 40A

Motor: 7.5 HP, Variable Speed Drive (5.6kW)

Dimensions: 50 L x 23 W x 48 H in. (127 x 58 x 122 cm)

Working Width: 23 in. (58cm)

Weight: 450 lbs. (204 kg) including pocket weights

Tools RPM: 250-500 RPM Variable

Tools Attachment Style: EG Proprietary Attachment System

Vacuum Hose Connection: 2 in. (50 mm) sold separately

Recommended Vacuum: PM3003AR

Production Rates

Mastic Removal: 200 SF (20 m2) per hour

Thin Set Removal: 200 SF (20 m2) per hour

+/-25 Mil Coatings: 200 SF (20 m2) per hour

Concrete Polishing: 300 SF (30 m2) per hour

Spec Sheet

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