Niagara Machine
Prepmaster Grinders
STI 2807
VIDEO: LITERATURE
Ideal for projects less than 5,000 sq. ft.
Light weight and gets into small areas
Easy one man load/unload
Moveable weight system for multiple applications
Variable speed drive for unlimited speed variation
STI 2420
VIDEO: LITERATURE
Ideal for polishing projects greater than 2,000 sq. ft.
Versatile machine
Easy one man load/unload
Moveable weight system for multiple applications
Variable speed drive for unlimited speed variation
STI 3030
VIDEO: LITERATURE
Ideal for polishing projects greater than 2,000 sq. ft.
Versatile machine
Easy one man load/unload
Moveable weight system for multiple applications
Variable speed drive for unlimited speed variation
STI 4430
VIDEO: LITERATURE
Ideal for projects greater than 20,000 sq. ft.
Versatile machine
Easy to transport and load
Quick disassembly for passage through 3-ft. doorways & loading
Moveable weight system for multiple applications
Variable speed drive for unlimited speed variation

STI-PM431
VIDEO: LITERATURE
Ideal for projects less than 1,000 sq. ft.
Light weight and gets into small areas
Easy one man load/unload
Moveable weight system for multiple applications
Variable speed drive for unlimited speed variation
STI-2417
Ideal for projects less than 2,000 sq. ft.
Motor: Kawasaki 17HP LP 3,650 rpm
Vacuum Hose: 3-inch x 25 ft.
750 lbs.
Tool RPM: 500 rpm @3,000 rpm
Pressure on Tools: 630 lbs. w/weights
74"L x 30"W x 53"H
Cleaning Path: 12.5" x 43" sweep
Planet Vac or equivalent recommended
Mastic Removal Rates: 450 sq.ft./hr.
Thin Set Removal Rates: 500 sq.ft./hr
Mil Coatings Removal Rates: 200 sq.ft.
Concrete Polishing Rates; 1,000 sq.ft./hr per step
STI-2817
Ideal for projects less than 5,000 sq. ft.
Motor: Kawasaki 17HP LP 3,650 rpm
Vacuum Hose: 3-inch x 25 ft.
585 lbs.
Tool RPM: 500 rpm @3,000 rpm
Pressure on Tools: 485 lbs. w/weights
72"L x 28"W x 53"H
Cleaning Path: 12" x 56" sweep
Planet Vac or equivalent recommended
Mastic Removal Rates: 350 sq.ft./hr.
Thin Set Removal Rates: 400 sq.ft./hr
Mil Coatings Removal Rates: 200 sq.ft.
Concrete Polishing Rates; 400 sq.ft./hr per step
ECO/PREP 500
5 HP, Variable Speed Drive
220V/1 Phase
15 amps
1,575 rpm
Vacuum Hose: 3-inch x 25 ft
350 lbs.
41"L x 20"W x 42"H
Cleaning Path: 25" x 25" sweep
Planet Vac or equivalent recommended
Mastic Removal Rates: 200 sq.ft./hr.
Thin Set Removal Rates: 200 sq.ft./hr
Mil Coatings Removal Rates: 50 sq.ft.
Concrete Polishing Rates; 300 sq.ft./hr per step

Niagara Machine, Inc. • 325 W. Front Street • Erie, PA 16507 • Phone: (814) 455-8838 • Fax: (814) 454-0160

TOLL FREE 1-800-622-2048 • Send E-mail