Straight from the Source

Prep/Master 3030 Electric Floor Grinding Machine


  • Our most popular model!
  • Working width: 30 in. (76cm)
  • For projects up to 10,000 SF (1,000 m²)
  • Electric motor: 30 HP (22kW); 1 or 3 phase
  • Available in 230V or 480V
  • Use for surface prep and polishing of concrete, terrazzo, and marble
12 months with 0% interest for qualified customers on equipment purchases of $10,000 or more.


Prep/Master 3030 Electric Floor Grinding Machine

Designed and Crafted for Polishing Projects up to 10,000 SF (1,000 m²)

As our most popular model, the Prep/Master STI-3030 floor grinding machine is an outstanding choice when it comes to small, medium, and large-sized surface preparation projects including surface grinding and polishing. By utilizing the STI rotary gear system, this floor grinder is extremely user-friend and maneuverable though it is slightly heavy in overall weight. Equipped with a robust and powerful 30HP motor and variable speed drive, the Prep/Master 3030 Floor Grinding Machine is able to effortlessly adapt to numerous polishing and grinding conditions including stone, marble, terrazzo, and concrete.

The Prep/Master 3030 Electric Floor Grinder’s adjustable pocket weight system adjusts head pressure depending upon the application. Along with that,  the standard water tank enables the machine to switch from wet to dry work in a heartbeat.

This floor grinding machine is available in 230V and 480V and uses four tool plates (included) and twelve tools. Please note, it is recommended to follow this machine’s safety manual as closely as possible in order to avoid dangerous hazards, health risks,  project downtime and roadblocks, and other types of inconveniences.

Prep/Master 3030 Electric Floor Grinding Machine Features

  • Working width: 30 in. (76cm)
  • 30 HP (22kW)
  • 1 or 3 phase
  • Available in 230V or 480V
  • 4 tool plates (included)
  • Uses 12 tools

Prep/Master 3030 Electric Floor Grinding Machine Specifications

  • Power Source: 220/230 VAC 1 or 3 Phase, 60Hz; or 380/480 VAC 3 Phase, 50-60Hz
  • Motor: 30 HP – 3 phase (22kW)
  • Power Cord: 30 ft. (9m) | 6-4

Be sure to check out our grinders and polisher parts and accessories to learn more about our adapter plates, velcro attachments, resin inserts, light kit upgrades, maintenance kits, Morflex couplers, STI cord charts, STI edge plates, as they may be of help to you and your surface preparation team.

More Information for the Prep/Master 3030 Electric Floor Grinder

The Prep/Master line of surface preparation equipment by Substrate Technology, Inc. is known for their durability, power, and versatility. For large spaces that need intensive preparation, the Prep/Master 3030 Floor Grinder can help you get the job done quickly, saving you time without sacrificing the level of detail you need to make sure the job is done right. This is why it’s our most popular model!

To see the Prep/Master 3030 grinder in action, check out this video!

A Powerful, Versatile Floor Grinder

Capable of every level of floor preparation, from lighter polishing to cutting through thick mastic or thin-set, the Prep/Master 3030 was designed for all types of environments, from small areas like workshops and garages to larger spaces up to 10,000 square feet.

The electric floor grinder features a 30 HP, single or 3-phase motor that is available in 230V and 480V. The propane-powered grinder is equipped with a Kawasaki 38HP motor so you can feel confident that either model you choose has the power you need to level uneven surfaces, grind away coatings, and even restore a smooth sheen.

To add to the performance, the 3030 has an adjustable pocket weight system to remove or add additional pressure to the grinding mechanism. A variable speed drive allows intensive cutting and grinding at a slow speed or a lighter polish without adding additional strain to the operator. This customization to each job makes it easy to tackle all kinds of terrazzo, marble, stone, and concrete surface preparation tasks.

A Grinder That Is Comfortable to Operate

Both the electric and propane floor grinder features four tool plates and can be fitted with 12 tools that operate on a rotary gear system to provide smooth, efficient operation. This, a 30-inch working width, and a design that allows you to grind and polish right up to the edge of the floor means you’ll have no problem getting the task done quickly, in comparison to other models. More importantly, this ease of operation reduces operator fatigue and is more comfortable for your team members to use.

Additionally, the pocket weight system makes transporting your grinder easier on your team so you can move it from your equipment truck to your job site with less strain.

Customize Your Grinder to the Job

As part of the Prep/Master line, the 3030 floor grinder is compatible with a wide array of grinding tools and accessories so you can provide different levels of polishing and grinding. There are also upgrades, including light kits for improved visibility, and maintenance kits available so you can reduce costly down time.

Contact Your Prep/Master Floor Grinding Machine Experts Today

If you have any questions regarding the Prep/Master 3030 Electric Floor Grinding Machine and would like to receive a complimentary quote, contact the burnisher and floor machine subject matter experts today at (815) 278-1308 or by filling out our contact form. We would be happy to educate and guide you any way we’re able to!

PrepMaster 3030 Electric Floor Grinding Machine For SaleBuy Manufacturers Direct sells surface preparation equipment such as floor scrapers, burnishers and floor machines (such as the Prep/Master 3030 Electric Floor Grinding Machineshot blasters, diamond grinders, scarifiers, profilers, and dust collectors. Along with the machines, BMD only sells OEM consumable parts so that the machines are as effective as they are designed to be. Buying from BMD you are buying through a channel that is endorsed and supported by its vendor partners. This means you have direct access to the people that make what you buy and know the product better than anyone.

Additional information

Weight 1504 lbs
Dimensions 92 × 37 × 64 in

220V / 230V, 380V / 480V





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