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General Overview

The Onyx SXi-2402 is built for high-performance, eco-friendly floor care with advanced technology and extended runtime. Its patented floating shroud and integrated dust collection system capture fine polymer dust at the source, removing the need for post-burnish dust mopping. A micro-filter vacuum bag traps particles as small as 0.5 microns, ensuring cleaner indoor air while meeting Green Seal GS-42 and LEED standards for sustainable cleaning.

Powered by two lithium iron phosphate batteries, this model provides up to 4 hours of continuous runtime per charge—allowing operators to cover larger spaces efficiently. With quiet operation, adjustable pad pressure, and an onboard monitoring system, the SXi-2402 makes it easy to achieve a brilliant floor finish while reducing both labor time and costs.


Included in Your Package

  • Onyx 24" Lithium-Ion Powered Floor Burnisher

  • Two 60 AH Lithium Iron Phosphate Batteries

  • Floating Dust Containment Shroud

  • Integrated Micro-Filter Vacuum Bag

  • Onboard Smart Battery Charger


Key Features

  • Lithium-Ion Battery Powered – Long runtime, fast recharge, no cords, no fuel.
  • Zero Emissions & Ultra-Quiet – Safe for schools, hospitals, retail, and high-traffic indoor spaces.
  • Propane-Grade Performance – All the gloss, none of the fumes.
  • Fewer Passes, Higher Gloss – Engineered for maximum shine with reduced labor and pad use.
  • Three Head Size Options – Easy head size change from 21", 24" or 27". Can we ordered in any of these three head sizes. 
  • Configuration Versatility – Variable speed range (600 - 1,800 RPM), onboard 10-gallon water tank for stripping/polishing use, wide range of pad/brush down-force adjustments.
  • Advanced Dust Control – Cleaner air, healthier workspace, and superior finish quality.

Specifications

  • Working Width: 24"

  • Motor Power: 5 HP (3.75 kW)

  • System Voltage: 72 V

  • Battery Capacity: 120 AH / 8.64 kWh (dual batteries)

  • Battery Life: 2,500 cycles

  • Runtime: Up to 4 hours per charge

  • Charge Time: 4.8 hours per battery

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

  • Pad Speed: 1,050–1,800 RPM (variable)

  • Sound Level: <63 dBA

  • Pad Pressure: 20–120 lbs (variable)

  • Dimensions: 29"W × 64"L × 42"H

  • Weight: 325 lbs (with 2 batteries)

  • Water/Solution Tank: 10 gallons (disconnected in burnisher mode)


Product Documents

SXi 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.

Manufacturer Warranty

All Onyx products purchased through Centra Supply carry Onyx’s standard manufacturer warranty. Onyx units carry a 3/3/3/3 warranty — 3 years on parts, labor, motor, and the rotationally-molded body. Coverage varies by product line — contact us for the exact terms on this model.

To Claim: Email support@centrasupply.com with your order number, product model, and a description of the issue. Photos or video of the defect may be requested. Most claims are acknowledged the same business day.

Centra Supply is an authorized Onyx dealer — your warranty is fully valid and manufacturer-backed.