Onyx 27" JX Plus Burnisher – 708cc Engine

The Onyx JX Plus is designed to deliver superior performance, operator comfort, and long-term reliability for professional floor care. With a 27-inch burnishing path and the ability to cover up to 34,000 square feet per hour, it’s an excellent choice for maintaining vinyl tile, terrazzo, and polished concrete surfaces. The integrated vacuum system combined with a patented floating shroud ensures effective dust capture, providing a cleaner workspace and safer environment.

Powered by a heavy-duty 708cc LPG engine featuring an LEHR fuel system and electric clutch, the JX Plus offers consistent power and efficiency. Built-in safety systems, including an emission shutdown device, make it a dependable solution for high-traffic environments such as schools, airports, supermarkets, and retail facilities.


Included in Your Package:

  • Onyx 27" JX Plus Burnisher w/ 708cc Engine

  • Emission Shutdown System

  • 27" Pad Driver

  • 20lb Steel Fuel Tank with Overfill Protection Device

  • Microfiber Vacuum Bag


Key Features

High-Performance Engine
708cc 19hp EPA-certified LPG engine delivers reliable power and fuel efficiency.

Built-In Vacuum System
Floating brush skirt and 2.5" vacuum port capture fine dust for superior containment.

Emission Safety
Onboard real-time monitoring with automatic shutdown for high emissions.

Quiet & Comfortable Operation
Noise levels stay under 87 dBA with anti-vibration isolators and ergonomic controls.

Durable Build
Reinforced powder-coated steel frame provides long-lasting strength.

Versatile Functionality
Supports 27" pads with adjustable speeds ranging from 1,200–2,100 RPM.

Advanced Safety
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, minimizing downtime.


Specifications

  • Burnishing Width: 27"

  • Engine: 708cc 19hp LPG (EPA Certified)

  • Performance: Up to 34,000 sq. ft. per hour

  • Sound Level: <87 dBA

  • Pad Speed: 1,200–2,100 RPM

  • Pad Size: 27"

  • Run Time: Approx. 6 hours per 20lb cylinder

  • Dimensions: 28"W x 53"L x 40–48"H (adjustable)

  • Frame: Powder-coated reinforced steel

  • Weight: 295 lbs (shipping weight: 325 lbs)

  • Ignition: 12v electric start

  • Fuel Tank: 20lb steel w/ overfill protection device

  • Warranty: 3 years (engine), 1 year (machine), 90 days (wear parts)


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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