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National Equipment

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

SKU GP700

Regular price: $24,521.25
Sale price: $22,292.05

Regular price: $24,521.25
Sale price: $22,292.05

Quantity

Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Prime Machinery Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@primemachinerysupply.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

Product Description

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

The National Equipment GP700 is a highly versatile, user-friendly concrete grinder and polisher engineered to prep concrete floor and deliver a high-gloss polished finish. This heavy-duty floor machine strikes the perfect balance of raw power, ease of use, and premium functionality. It is an exceptional, reliable choice for commercial flooring contractors and DIY residential rental users alike.

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.

Specifications

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

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.