How The Stonechat Concrete Floor Polisher Helps You Refinish Stone With Less Effort

Heavy-Duty 110V 15A Floor Grinder & Polisher


Plugs into any standard 110V 15A outlet (and handles up to 400 lbs of additional weight to restore floors faster)


Integrated SplashGuard with dust port keeps the work area clean & dust-free.


Built-in amperage meter with shows you how much weight you can safely add without tripping the breakers.


Offset handle helps reduces fatigue on the operator.


Converts easily to a countertop grinder & polisher.

Discover How the Stonechat Makes Your Work Easier

Click the to discover how The Stonechat makes life easy for you.

stonechat-2020 hotspot

Technical Specifications

STONECHATPart #: 2W220-6
Primary ApplicationHard Stone or Concrete
Electrical Supply120 V – 15 A Outlet 50/60 Hz
Drive Block Size18"
Downsizes To13"
Drive Block SpeedSingle Speed: 175 RPM
MotorDC 1.5HP – High Torque
Noise Level63 dB
Detachable HandleYes
Extended Handle BarYes
Electric Cord Length50 ft (15.24 m)
Detachable Electric CordYes (twist lock)
Machine Weight79.1 lbs (35.9 kg) (without electric cable)
Weights Supportedup to 400 lbs (181 kg)
Removable SplashGuardYes
Supports Baseboard CleaningYes
Water Tank (16 L / 4 GAL)Yes
Dust Port Attachment For VacuumYes
Flex HoseYes

Choose Your Stonechat Package

Starter Package(#2W220-4) Complete Package Package(#2W220-5) Countertop Package(#2W220-9)


Single speed 175 RPM, 1.5 HP DC Motor, 50 ft Electric Cord


Single speed 175 RPM, 1.5 HP DC Motor, 50 ft Electric Cord


Single speed 175 RPM, 1.5 HP DC Motor, 50 ft Electric Cord

Deluxe Water Tank
(w/ stainless steel handle + drain plug)
check check
SplashGuard With Dustport check18” (removable for downsizing) check18” (removable for downsizing) check13″ Flex SplashGuard
Horseshoe Weights check(3 x 40 lbs) check(3 x 40 lbs) check(1 x 40 lbs)
18″ Oriol Plus Drive Block
(w/ center lock)
optional check
Magpie Diamond Holder
(w/ 6 velcro cub discs)
optional check18″ Plastic Magpie check13″ Plastic Magpie

If you already own a Stonechat, get the Stonechat-Mini Conversion Kit #2C01700 (includes: Short handle with 50’ cable, 13″ Flex SplashGuard and 13″ Magpie with 6 cub discs)

3-Year Ironclad Guarantee

“Bumper-To-Bumper Protection for Your Peace of Mind”

Centaur floor machines are hand-crafted for toughness, durability and reliability.

In the highly unlikely event that your Centaur floor machine experiences a mechanical or electrical problem due to a manufacturing defect within the 3-year guarantee period, simply call us at (905) 475-5640 to have it resolved.

We will repair it for FREE, or if we cannot repair it, we will replace it for FREE.

Tools & Accessories To Help You Clean Better... And in Less Time

40 lb Horseshoe Weight

40 LB Horseshoe Weight

Add these 40 lb weights to your floor machine (as per operating allowances) and strip, clean, scrub, grind and polish floors in less time.

Learn More

Item Part #
40 lb Horseshoe Weight 2F03072

Deluxe Water Tank

Deluxe Floor Machine Water Tank

This is the water tank to use for jobs that require a water supply – like stripping floors, baseboard cleaning & stone restoration.

Learn More

Item Part #
Deluxe Water Tank (Long Adjusting Handle) 2A88920
Deluxe Water Tank (Rabbit-8/8L) 2A88801
Deluxe Water Tank (Short Adjusting Bar) 2A88900

18″ SplashGuard + Dust Port

18" splashguard+port

Use this long-lasting SplashGuard to keep the mess and dust from getting on walls and baseboards.

The Centaur SplashGuards are non-marking and use stainless steel nuts so they’ll last you many years.

SplashGuard with dustports conveniently hook up to a vacuum cleaner. This is recommended for dry sanding and grinding to prevent any dust or harmful silica from getting airborne.


Item Part #
18″ SplashGuard 2E94020
18″ SplashGuard With Dust Port 2E94021

#13 Flexible SplashGuard (fits machines with 13″ pad driver)

13" Flexible SplashGuard

Use the Flexible SplashGuard to keep the mess from spraying on to walls and baseboards while using a floor machine.

The Flexible SplashGuard is made from non-marking heavy-duty arena rubber composite so it lasts long, and comes in different sizes to fit most other floor machines.

Item Part #
#13 Flexible SplashGuard (fits machines with 13″ pad driver) 2E94026

Magpie Diamond Holder

13"16"18" tough nylon magpie w cub discs
  • Multi-Surfaces
  • Wet or Dry

This Magpie diamond holder comes with 6 replaceable velcro cub discs that accept all velcro-backed diamonds up to 4″ in diameter. One Magpie is all you need to grind, hone and polish stone floors.

Item Part #
13″ Magpie Diamond Holder 2A81824
16″ Magpie Diamond Holder 2A81833
18″ Magpie Diamond Holder 2A81840

Aluminum Magpie w/ Gimlets

16"18" aluminum magpie gimlets
  • Concrete
  • Wet or Dry

Six extremely aggressive 16-Grit diamond gimlets are mounted on this aluminum Magpie making it perfect for smoothing out undulating concrete surfaces, exposing aggregate, removing coatings, sealers and glue.

Gimlets will typically last for jobs up to 10,000 sq ft.

Item Part #
16″ Aluminum Magpie w/ Gimlets 2A81836
18″ Aluminum Magpie w/ Gimlets 2A81844

Aluminum Magpie w/ Cupwheels

16"18" Aluminum magpie with cupwheels
  • Concrete
  • Wet or Dry

Designed to dissipate heat under heavy friction, the tough aluminum magpie with (6) 25-Grit cupwheels is ideal for jobs such as: preparing concrete floors for coating; exposing aggregate in concrete or terrazzo flooring; removing epoxy, coatings or sealers & carpet glue.

Item Part #
16″ Aluminum Magpie w/ Cupwheels 2A81837
18″ Aluminum Magpie w/ Cupwheels 2A81843

Mastic Removal Tool

4.5"7"16" diamabrush mastic removal tool
  • Concrete
  • Wet Only

Use this tool to remove glue and mastic from floors quickly and economically.

The blades are replaceable and typically last for 25,000 sq ft.

Item Part #
4.5″ Mastic Removal Tool (for hand grinder) 2C20010
7″ Mastic Removal Tool (for hand grinder) 2C20011
16″ Mastic Removal Tool 2C20024

Polar Magnetic Drive Block

17" Polar Magnetic Drive Block
  • Multi-Surfaces
  • Wet or Dry

Easily snap on any tool to this drive block. The tools snap on in exactly the right place and remain securely in place with the assistance of guide pins. Tool removal is a breeze with a twist of a screwdriver.
See Floor Plate Selection

Item Part #
Polar Magnetic Drive Block 2C33600

The Polar Magnetic System

  • Multi-Surfaces
  • Wet or Dry

If you’re working on a variety of floor jobs and looking for high-performance tools that you can switch out on the job, then the Polar Magnetic System will save you time and deliver the results.
See Floor Plate Selection

Item Part #
The Polar Magnetic System See Selection

Diamond Disks and Tools

diamond disks
  • Multi-Surfaces
  • Wet or Dry

A large selection of economical and long lasting premium diamonds are available for honing, grinding and polishing hard surfaces to perfection. Available in grits 30-8500 and sizes 3 to 7 inches.
See Diamond Selection

Item Part #
Diamond Disks and Tools See Selection

Diamond ASTRO Pads

astro diamond pads

ASTRO pads are the GREEN method to maintain stone surfaces. Replacing floor wax with a hardened mechanical shine eliminates the use of chemicals.

Size & Grit Chart

Item Part #
Diamond ASTRO Pads See Chart

Spiral Aggressor

  • Concrete
  • Wet or Dry

The Spiral Cupwheel has a very aggressive 30 grit pattern for grinding.

Use this on Magpies or with hand grinders.

Item Part #
4″ Aggressor (14 Segments) 2C00423
4″ Aggressor (8 Segments) 2C00422
7″ Aggressor (12 Segments) 2C00421
7″ Aggressor (18 Segments) 2C00419
7″ Aggressor (24 Segments) 2C00420

Double Row

4"5"7" double row for magpie
  • Concrete
  • Wet or Dry

The Double Row is less aggressive than the Spiral Aggressor and leaves a smoother finish ideal for grinding.

Use this on Magpies or with hand grinders.

Item Part #
4″ Double Row 2C00424
5″ Double Row 2C00425
7″ Double Row 2C00426

Grout Brush & Pad Combination

17" tynex

The TYNEX grout brush features a 13″ scrubbing pad combined with 180 Grit brush bristles to provide superior results. It reduces the need for multiple passes and is ideal for concrete, terrazzo, tile and linoleum. Flexible enough for cleaning narrow grout lines and uneven surfaces.

Item Part #
17″ Grout Brush & Pad Combination 2A71786

How The Stonechat Stands Head & Shoulders Above Other Floor Machines

Feature Other Machines The Stonechat
Integrated Splashguard (removable) No check
Downsizes from 18″ to 13″ No check
Baseboard Cleaning No Available
Accommodates Weights Some check
Dust Port Attachment Some check
Made In Canada No check
Typical Lifespan 5—10 Years 15—20 Years

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0 Years
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Machines In Active Use
Customers We Support
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Frequently Asked Questions

How much additional weight can I put on the Stonechat?

The Stonechat is designed for additional weight so that you can complete your job in less time.

Simply add 40lb horseshoe weights (one at a time) and monitor the on-board amperage meter to ensure you are not overloading the circuits. As long as you are operating within the “safe” limits you can add more weight to the machine.

The Stonechat accommodates up to ten 40lb horseshoe weights for a maximum of 400 lbs (181 kg) of additional weight.

How close can the Stonechat get to the wall?

The Stonechat’s 18″ grinding path still allows the operator to grind or polish up to ½” from the wall.

How do I downsize the Stonechat?

Like all Centaur floor machines, the Stonechat has a removable SplashGuard.

When you remove the SplashGuard you can now attach a 13″ Magpie or pad holder and use the machine to get into those hard to reach areas that need a “smaller” grinding/polishing path.

How do I use the Stonechat for countertops?

If you already own a Stonechat, get the Stonechat-Mini Conversion Kit (product #2C01700) to convert your Stonechat to a countertop polisher and grinder.

The conversion kit includes the Short Handle assembly, a 50′ cable, a 13″ flex SplashGuard and a 13″ Magpie with 6 cub discs.

The Best Protection Guarantee In The Industry

You have 3X the PROTECTION when you purchase a Centaur Stonechat

30-Day Money Back PERFORMANCE Guarantee

performance guarantee

If the Stonechat Floor Machine doesn’t get the work done faster and better than ANY other machine you’ve used before, simply contact our office to have it returned (within 30 days of purchase) and receive a FULL REFUND. Plus, we’ll cover the shipping cost.

Top-Quality LIFETIME Guarantee

quality guarantee

If your Stonechat ever has a manufacturing defect on Non-Wearable/Non-Moveable Components* we’ll Fix or Replace Your Floor Machine within 1 business day… for FREE!

10-Year MOTOR Warranty

motor guarantee

If you use the Stonechat under normal conditions and the Motor gives up, we’ll Fix or Replace the Motor on your Centaur Floor Machine within 1 business day for FREE**.

Leading Institutions That Select Centaur Floor Machines


Versatile and a Time Saver

“I’ve been using Centaur floor machines for 15 years with great success. Attachments like the water tank and the 40lb weight makes the machine’s versatility quite impressive. The baseboard attachment (Scrub Jay) is phenomenal. As you know wax and liquids get splashed on the baseboards throughout the year and it is very time consuming to remove them by hand, but with this attachment, all that is required is to apply baseboard cleaner and go.”

—Dustin Chang, FCH Maintenance

the hurley group

One of the Secrets of Our Success

“Our relationship dates back to the mid-sixties, your persistence, dependable products and flawless customer service enabled our company to focus on our growth and customer service.

Our field staff has successfully utilized the Rabbit floor machine for many years; it’s versatility, dependability is unparalleled and unquestioned within our organization. As I look back, we continue to purchase your product without hesitation and the evolution of your company has contributed to the success of ours.”

—Michael P. Hurley, former President & Co-CEO Hurley Corporation


Exceptional Workmanship

“Centaur products have proven to be highly effective, extremely durable and cost effective. The Rabbit line meets all of or scrubbing, stripping and bonneting needs and we have many that are still in service that were purchased over ten years ago.

Furthermore, it has been our pleasure to deal with your company. You and your staff have always conducted yourselves with the highest level of integrity. That, together with a very solid product offering, has made this a very beneficial partnership.”

—Brian Gingras, CBSE President Bee-Clean Building Maintenance