National Equipment GP3000 Concrete Grinder & Polisher, 25HP, 28", Wet Dry - GP3000

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Sale price$29,940.00 Regular price$31,575.00

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National Equipment GP3000: High-Performance Concrete Grinder & Polisher (GP3000)

The National Equipment GP3000 is a powerful and versatile concrete grinder and polisher designed for efficient and professional surface preparation in commercial and industrial settings. This robust machine boasts a wide cleaning path and exceptional features, making it ideal for tackling various concrete grinding and polishing projects.

Key Features

  • Expansive Cleaning Path: The 28-inch cleaning path allows for fast and efficient coverage, maximizing productivity.
  • Counter-Rotational Grinding Heads: Increase grinding pressure and minimize swirl marks, delivering a smooth and even finish.
  • Adjustable 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.
  • Forward and Reverse Functionality: Enhances maneuverability and control.
  • Integrated Handle Transport Wheels: Facilitate easy loading and unloading.
  • Adjustable Head Pressure: Removable side weights allow for customized pressure settings depending on the job requirements.


  • Width: 29.5 inches (74.9 cm)
  • Height: 52 inches (132.1 cm)
  • Length: 72.25 inches (183.5 cm)
  • Cleaning Path: 28 inches (71.1 cm)
  • Weight: 1,425 lbs (647 kg)
  • Grinding Pressure with Weights: 1,090 lbs (494.5 kg)
  • Tooling RPM: 385-600
  • Motor Phase: Three
  • Frequency: 60 Hz
  • Horsepower: 25
  • Voltage: 230V
  • Amps: 60

The National Equipment GP3000 is ideal for

  • Removing coatings, paint, and adhesives
  • Leveling uneven concrete surfaces
  • Preparing concrete for polishing or coatings
  • Polishing concrete floors to a high shine


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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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