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Product Description

National Equipment 8274-4 Planetary Grinder, 18", Hi-Power, 120 Volt - 8274-4

Features

The 8274-4 planetary grinder is the only grinder on the market offering 3 HP at 115V whil operating at a 230V level.  With variable speed and a soft start to control it's amperage draw, the 8274-4 adjusts to the needs of small or large jobs.  This machine is well suited for removal of thin-set, coatings, adhesive, prepping concrete for overlays or coatings, and polishing.

• Three-part adjustable angle handle
• Electronic control box minimizes tripped and blown breakers
• Forward and reverse directional controls increase tooling productivity with cleaner consumables and more even wear
• Variable speed control
• Dual rear vacuum ports
• Flip-style weights for added or decreased head pressure
• Removable handle and weights for easy transport
• 18-inch grinding path; uses National’s patented self-tensioning, single-belt design to prepare concrete surfaces to a 3000-resin shine
• Adjustable velcro dust guard lets the machine operate within 1/8 inch of walls and promotes nearly dustless operation
• Grinder head rotates 90 degrees for easy tooling change access; Morflex couplers, polishing undulating concrete surfaces or creating a uniform scratch pattern for coating applications; operates a complete dry grind and polish system to eliminate messy and hazardous slurry
• This new and improved grinder now features the increased reliability of an on/off switch on the handle

Specifications

Width: 20"

Disk Size: 18.5"

Max Height: 52"

Min Height: 27.5"

Max Length: 75"

Min Length: 38.5"

Weight: 388 lb

Drum RPM: 133.8

Motor RPM: 400-2000

Motor Phase: Single

HP: 3

Amps: 15 or 20 - controller can switch between both settings

Voltage: 115

Frequency: 60 Hz

8274-4 MANUALS:

/content/402902_RevB (8274-4 Operating)-sm.pdf

/content/402973_RevB (8274-4 Service)-sm.pdf