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- Regular price
- $6,665.00
- Sale price
- $6,000.00
Sale
- Regular price
- $6,665.00
- Sale price
- $6,000.00
Sale
Estimated Shipping Time
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?
What is your Return Policy?
Hassle-Free Returns
You can return unused, undamaged items in original packaging within 14 days of delivery.
- Contact us within 48 hours for a free replacement or full refund.
- We’ll cover return shipping and send the correct product.
- You cover return shipping; refund issued to your original payment method.
Refunds are processed within 14 days after we receive and inspect your return.
Please see the full Return & Refunds Policy page for more information
Contact: support@centrasupply.com | (630) 634-7281

Onyx 21" JX Plus Burnisher – 603cc Engine
The Onyx JX Plus 21" Burnisher is built for professional performance, operator comfort, and long-term durability. Designed to cover up to 34,000 square feet per hour, it’s well-suited for maintaining vinyl tile, terrazzo, and polished concrete floors. Its integrated vacuum system with a patented floating shroud provides excellent dust containment, creating a safer and cleaner work environment.
Powered by a dependable 603cc LPG engine with an LEHR fuel system and electric clutch, this burnisher also incorporates advanced safety features, including an automatic emission shutdown device. With its ergonomic design, quiet operation, and heavy-duty steel frame, the JX Plus is ideal for airports, schools, grocery stores, and retail facilities.
Included in Your Package:
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Onyx 21" JX Plus Burnisher w/ 603cc Engine
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Emission Shutdown System
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21" Pad Driver
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20lb Steel Fuel Tank with Overfill Protection Device
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Microfiber Vacuum Bag
Key Features
Powerful Engine
603cc 17hp EPA-certified LPG engine delivers efficient, reliable power.
Integrated Dust Control
Floating brush skirt and 2.5" vacuum port capture fine dust particles for a cleaner workspace.
Emission Monitoring
Onboard system provides real-time tracking with automatic shutdown for high emissions.
Quiet Operation
Noise level under 87 dBA with anti-vibration isolators and ergonomic controls for operator comfort.
Durable Frame
Heavy-duty powder-coated steel frame designed for long-lasting use.
Versatile Design
Supports 21" pad sizes with adjustable speeds ranging from 1,200–2,100 RPM.
Advanced Safety Features
Equipped with an electric clutch and internal vaporizer to prevent regulator freezing.
Extended Runtime
Provides up to 6 hours of continuous use on a single 20lb LPG cylinder.
Specifications
Product Function | Floor Burnishing |
Operation Mode | Walk-Behind Pad Assist |
Power | LX600 17hp Propane Engine |
Working Width | 21" |
Dust Control | Floating Shroud with Dust Collection Bag |
Run Time | 6 Hours Per 20lb Propane Cylinder |
Pad / Brush Size | 21" |
Pad Speed | 1200-2100 RPM |
Dimensions | 21"W x 53"L x 48"H |
Clutch | Included |
Emission Monitoring System | Included |
Product Documents
JX-600 Data Sheet
Product specification and additional features.
Operator Manual
Full operation, maintenance, and safety guide.
Illustrated Parts List
Complete parts list and ordering information.
Wiring Diagram
Complete electrical wiring diagram for troubleshooting.
Product Videos
Troubleshooting a Machine That Does Not Crank
Learn how to diagnose and repair an engine that does not start.
Troubleshooting a Machine that Starts but Dies
Learn how to diagnose and repair an engine that starts, but quickly dies when the key is in the RUN position.
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