Additional Included Weight Handle
Lifting Hooks
Work Light

Tooling Plate

77 lbs (35kg)Adjustable
No
Bright LED
Slide Mag / 3 Hole

The Predator P550Y Concrete Grinder and Polisher is a 21.7‑inch, 3‑head planetary floor grinder designed for professional concrete preparation and polishing with high productivity, precise balance, and easy on‑site operation. It runs on a 5 hp single‑phase 220V motor with variable speed, making it suitable for everything from aggressive surface prep to fine polishing on commercial and residential projects.

Overview of the Predator P550Y Concrete Grinder and Polisher

The Predator P550Y is part of the Y‑Series of floor grinders engineered for concrete grinding, mortar removal, surface preparation, and full concrete polishing systems. With a grinding width of 21.7 inches (550 mm) and a precision balanced 3‑head planetary design, it offers efficient coverage while maintaining excellent maneuverability on tight job sites.

This model runs on 220V single‑phase power and delivers 5 hp (3.7 kW), which allows contractors to plug into commonly available power sources without needing 3‑phase service. Variable speed control and a wide RPM range help operators match the machine’s performance to different tooling and concrete conditions, from coarse stock removal to high‑gloss finishing.

Key Features and Technical Specifications

The P550Y is built around a heavy‑duty steel frame that supports long‑term durability in demanding environments. Its 3‑head planetary system distributes weight evenly across the grinding path, improving cut consistency and reducing operator fatigue compared to single‑head machines.

Important specifications include:

• Voltage: 220V, single‑phase

• Power output: 5 hp (3.7 kW)

• Amperage: approximately 17.6 A

• Power frequency: 60 Hz

• Plug type: 30A NEMA L6‑30P twist‑lock

• Motor/engine RPM: 0–1800

• Grinding head RPM: 0–1500

• Planetary plate RPM: up to about 540

• Grinding width: 21.7 inches (55 cm)

• Individual head diameter: 9 inches (23 cm)

• Dimensions (L × W × H): about 38.2" × 21.7" × 33.5" (97 × 55 × 85 cm)

• Machine weight: about 369 lb (180 kg)

The handle features easy height adjustment so operators of different statures can maintain a comfortable posture, which is especially important on long grinding days. The machine is also designed with on‑site maintenance in mind, allowing access to critical components to reduce downtime and keep productivity high.

Planetary Design, Variable Speed, and Performance

A central advantage of the Predator P550Y is its 3‑head planetary design, where three smaller heads rotate on their own axes while spinning around a central planetary plate. This configuration increases contact points with the floor, promoting a flatter finish and minimizing swirl marks when used with appropriate tooling and passes.

Variable speed control allows the operator to adjust RPM for different stages of the concrete finishing process. Lower speeds are often used during initial coating removal or when running aggressive metal‑bond diamonds, while higher speeds can improve productivity during medium grinding and final polishing passes. The steel gear drive and precise weight distribution contribute to smooth operation and stable head pressure, which helps achieve consistent scratch patterns and uniform gloss levels across the slab.

The P550Y is designed to pair with compatible HEPA dust extraction systems, which dramatically improves dust control on site. Good dust management not only protects workers and nearby trades, it also keeps the work surface cleaner so diamonds cut more efficiently and polishing stages are easier to control.

Typical Applications and Use Cases

The Predator P550Y is suitable for a range of concrete flooring applications in commercial, industrial, and residential environments. Common uses include:

• Surface preparation before installing coatings, overlays, or adhesives

• Coating and thin‑set removal on existing concrete floors

• Smoothing and leveling uneven slabs or high spots

• Full mechanical concrete polishing systems to achieve satin or high‑gloss finishes

• Exposing aggregate to decorative levels in retail, hospitality, or architectural spaces

Its 21.7‑inch grinding width provides a balance between productivity and maneuverability, making it well suited for medium‑sized projects, corridors, and areas where larger 650 mm or 750 mm machines may be difficult to handle. Because it runs on 220V single‑phase power, the P550Y fits well into facilities where 3‑phase power is not readily available but professional‑grade grinding and polishing are still required.

Tooling Options and Compatibility

The Predator P550Y supports an assortment of tooling options that allow contractors to tailor the machine to specific job requirements. These can include metal‑bond diamond segments for aggressive stock removal, transitional diamonds for refining scratch patterns between metals and resins, and resin‑bond diamonds for higher‑grit polishing stages.

Because the heads are 9 inches in diameter, tooling is typically offered in segment arrangements designed for planetary grinders of this size. Operators can select bond hardness and grit based on concrete density and desired finish, for example using softer bonds on very hard concrete or harder bonds on softer slabs to prevent premature wear. The variable speed capability of the P550Y means that many types of diamond tools can be run efficiently, helping contractors adjust for challenging slabs or specialty finishes.

Operator Comfort, Handling, and Maintenance

The heavy‑duty steel frame on the Predator P550Y is designed to withstand tough job site conditions while still being manageable to transport and move around the floor. Its adjustable handle allows the operator to set a comfortable working angle, which can reduce strain on the back and shoulders during extended grinding sessions.

The machine’s balanced design and planetary system contribute to smoother tracking and easier control compared with some single‑head or unbalanced models. Features focused on maintenance and serviceability help ensure that belts, gears, and other drive components can be inspected and serviced on site, limiting interruptions to production. When paired with a suitable HEPA dust extractor and used according to the owner’s manual, the P550Y can support safe, clean operation and compliance with dust regulations on many job sites.

Frequently Asked Questions About the Predator P550Y Concrete Grinder and Polisher

What is the grinding width of the Predator P550Y?
The P550Y has a grinding width of approximately 21.7 inches (550 mm), which allows for efficient coverage while still fitting into many confined spaces.

What power requirements does the Predator P550Y have?
This model typically operates on 220V single‑phase power and draws around 17.6 amps, using a 30A NEMA L6‑30P twist‑lock plug at 60 Hz.

How much does the Predator P550Y weigh?
The machine weight is around 369 pounds (180 kg), providing sufficient head pressure for effective grinding while remaining manageable for transport with appropriate equipment.

What type of motor and horsepower does it use?
The P550Y is equipped with a 5 hp (3.7 kW) motor designed for variable speed operation, giving the operator flexibility to match RPM to each grinding or polishing stage.

Is the Predator P550Y suitable for both grinding and polishing?
Yes, the Y‑Series grinders, including the P550Y, are engineered for both concrete preparation and full polishing, depending on the tooling and process used.

What is meant by a 3‑head planetary design?
A 3‑head planetary design means the machine has three smaller grinding heads that spin on their own axes while rotating around a larger planetary plate, which helps achieve a flatter floor and more consistent finish.

Does the P550Y have variable speed control?
Yes, the Predator Y‑Series grinders feature variable speed, allowing adjustment of head and planetary RPMs to suit different tasks, tooling, and concrete conditions.

Can the Predator P550Y be used with dust extraction systems?
The P550Y is designed to pair with compatible HEPA‑filter dust extraction systems, which provide effective dust control and help maintain safer, cleaner job sites.

What types of tooling are available for this grinder?
An assortment of tooling options is available, including metal‑bond diamonds, transitional tools, and resin pads, enabling the machine to handle coating removal, leveling, and high‑gloss polishing on a wide range of slabs.

Is the handle adjustable for different operators?
Yes, the machine includes an easy height adjustment handle, allowing operators to set a comfortable working height and improve ergonomics during use.

What are typical applications for the P550Y?
Typical applications include surface prep before coatings, removal of adhesives or thin‑set, smoothing uneven concrete, exposing aggregate, and delivering polished concrete finishes in commercial and residential spaces.

Where can the Predator P550Y be purchased?
The P550Y is available through several equipment distributors and online retailers that specialize in concrete tools and floor grinders, including brands that carry Bartell Global or Innovatech products.

Are there larger or smaller models in the same series?
Yes, the P550Y is part of a line that includes larger models such as the P650Y and P750Y, which offer wider grinding paths and higher horsepower for larger‑scale projects.

Does the Predator P550Y come with additional weights?
According to the Y‑Series documentation, additional weights are included with the P550Y model to help fine‑tune head pressure when needed.

What safety considerations apply when operating the P550Y?
The owner’s manual recommends proper PPE such as waterproof and insulating footwear and gloves, appropriate power cable sizing, and adherence to all safety instructions when operating the machine and associated dust extraction equipment.