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Sale
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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 – 708cc Engine
The Onyx JX Plus 21" Burnisher is designed for comfort, safety, and professional performance in demanding environments. Capable of burnishing up to 34,000 square feet per hour, it’s an excellent solution for maintaining vinyl tile, terrazzo, and concrete floors. An integrated vacuum system with a patented floating shroud ensures outstanding dust control, keeping work areas clean and operators safe.
Powered by a dependable 708cc LPG engine featuring an LEHR fuel system and electric clutch, this machine incorporates advanced safety features including an automatic emission shutdown device. With its ergonomic design, quiet operation, and rugged steel frame, the JX Plus is ideal for use in schools, airports, grocery stores, and retail facilities.
Included in Your Package:
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Onyx 21" JX Plus Burnisher w/ 708cc 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
High-Performance Engine
708cc 19hp EPA-certified LPG engine provides reliable power and efficiency.
Dust Containment System
Floating brush skirt and 2.5" vacuum port deliver effective dust collection.
Emission Safety Monitoring
Onboard system provides real-time data with automatic shutdown if emissions rise too high.
Quiet & Comfortable Use
Operates at less than 87 dBA with ergonomic controls and vibration isolators for operator comfort.
Rugged Build
Heavy-duty powder-coated steel frame ensures long-lasting durability.
Versatile Pad Options
Supports 21", 24", or 27" pad sizes with variable speeds between 1,200–2,100 RPM.
Advanced Safety Features
Equipped with an electric clutch and internal vaporizer to prevent regulator freezing.
Extended Runtime
Runs up to 6 hours on a single 20lb LPG cylinder.
Specifications
Product Function | Floor Burnishing |
Operation Mode | Walk-Behind Pad Assist |
Power | LX700 20hp Propane Engine |
Performance | 34,000 SqFt per hour |
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-700 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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