National Equipment GP700 Concrete Grinder & Polisher, 7.5HP, 27", Wet Dry, 230V - GP700

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National Equipment GP700: Versatile Concrete Grinder and Polisher (GP700)

The National Equipment GP700 is a versatile and user-friendly concrete grinder and polisher, ideal for preparing concrete floors for various applications and achieving a beautiful polished finish. This powerful machine offers the perfect combination of features and functionality for both professional contractors and do-it-yourself enthusiasts.

Key Features

  • Prepares Floors for Multiple Applications: Effectively removes coatings, adhesives, and polishes surfaces in preparation for overlays, topical coatings, or polishing.
  • Wide Cleaning Path: The 27-inch cleaning path allows for efficient coverage, saving time and effort on larger projects.
  • Adjustable Head Pressure: Removable side weights allow for customized pressure settings depending on the job requirements, making it suitable for various tasks.
  • Floating Shroud with Brush: Optimizes dust collection and protects the operator during operation.
  • Flexible Handle: Adjusts and folds for comfortable operation and compact storage.
  • Rear Spring Suspension: Ensures consistent grinding pressure even on uneven surfaces.
  • Variable-Speed Soft Start: Provides precise control for different applications and materials.
  • Multi-Angle Grinding: The forward/rear locking pitch-adjustable axle allows for customizing the head angle to compensate for uneven surfaces, enhancing control and efficiency.
  • Easy Maneuverability: Integrated handle transport wheels facilitate effortless loading and unloading, while the adjustable/foldable handle ensures user comfort.


  • Width: 27.5 inches (70 cm)
  • Height: 37.5 inches (95.3 cm)
  • Length: 56.5 inches (143.5 cm)
  • Cleaning Path: 27 inches (68.6 cm)
  • Weight: 800 lbs (363 kg)
  • Grinding Pressure with Weights: 440 lbs (200 kg)
  • Tooling RPM: 390-585
  • Motor Phase: Single or Three
  • Frequency: 60 Hz
  • Horsepower: 7.5
  • Voltage: 230V
  • Amps: 30

The National Equipment GP700 is ideal for

  • Removing paint, coatings, and adhesives from concrete floors
  • Preparing concrete for overlays or topical coatings
  • Leveling uneven concrete surfaces
  • Polishing concrete floors to a desired finish


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About National Flooring Equipment

Our company was founded in 1968 when the Anderson family began developing new flooring tools in their garage in Minnesota. From there, they started designing surface preparation equipment with a focus on durability and long-lasting performance. The Olson family bought National in 2007, shifting the company’s primary focus to industrial-grade surface preparation and floor removal equipment, with a focus on customer service. The Olsons built upon the Andersons’ tradition of quality products and competitive pricing.
Over time, they introduced larger floor removal equipment to the market, expanding their operations, reputation, and customer base. Thanks to their vision, National now has over 50 patents registered in the United States and around the world, giving us a global presence unmatched in our industry. We’re incredibly proud of the level of customer service everyone at National provides. It’s not unheard of for a National representative to personally deliver a piece of equipment when a contractor needs it quickly to complete a project. We’re here for our customers seven days per week, ready to solve problems with tools that make their job easier.

Proudly Built in America

Our products are made right here in the United States, where quality assurance standards are among the highest in the world. When you buy domestically, you benefit from accessible facilities, more reliable supply chains, and superior products. We’re also there for our global customers with local service teams ready to lend a hand when required.

We're proud to build locally, ship globally, and help you solve problems no matter where you're located. This approach is how we built our company, and it will always be part of how we do business.

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