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  • Pioneer Eclipse 400BU propane burnisher lineup showing the 21-inch and 28-inch models together on a white background.
  • Pioneer Eclipse 400BU 28-inch propane floor burnisher on a white background with a large navy 28-inch size label.
  • Pioneer Eclipse 400BU 21-inch propane floor burnisher on a white background with a large navy 21-inch size label.

    • Pioneer Eclipse 400BU Series Propane Burnisher – SKUs 400BU21BCSM, 400BU21BCSMX, 400BU21BM, 400BU21BSM, 400BU21BSMX, 400BU28BCSM, 400BU28BCSMX, 400BU28BSM & 400BU28BSMX

    Pioneer Eclipse

    MSRP: $6,046.41
    $5,233.87
    (You save $812.54 )
    SKU:
    400BU21BM
    Availability:
    Y
    Width:
    30.50 (in)
    Height:
    41.00 (in)
    Depth:
    61.50 (in)
    Shipping:
    Free Shipping
    Type:
    Propane Floor Burnisher
    Cleaning Width:
    21 in., 28 in.
    Sound Level:
    < 89 dB(A
    Pad Speed:
    1,500–2,000 RPM
    Recommended Surfaces:
    Finished VCT, Terrazzo, Polished Concrete, Sealed Hard Floors
    Clutch Options:
    Available on Select Models
    Power Type:
    Propane
    Adding to cart… category.add_cart_announcement

    Product Description

    Pioneer Eclipse 400 Series Propane Burnisher – SKUs 400BU21BCSM, 400BU21BCSMX, 400BU21BM, 400BU21BSM, 400BU21BSMX, 400BU28BCSM, 400BU28BCSMX, 400BU28BSM & 400BU28BSMX

    Commercial propane floor burnishers available in 21-inch and 28-inch configurations with standard, clutch-equipped, emissions-monitor, and clutch-plus-monitor options.

    The Pioneer Eclipse 400 Series Propane Burnisher is a commercial ultra-high-speed floor burnisher designed for facilities and contractors that need fast gloss restoration across large areas of finished flooring.

    Choose from 21-inch and 28-inch burnishing paths, with multiple configurations available to match facility size, maneuverability requirements, clutch preferences, and emissions-monitoring needs.

    Built for Fast, High-Gloss Floor Maintenance

    The Pioneer Eclipse 400BU is built for commercial floor-care programs that need the productivity of propane power without the cord restrictions of an electric burnisher.

    A 603 cc engine powers the 21-inch platform at approximately 2,000 RPM and the 28-inch platform at approximately 1,500 RPM. Both sizes are designed for ultra-high-speed burnishing of compatible finished hard floors.

    The 21-inch version provides greater maneuverability around tighter commercial spaces, while the 28-inch platform increases floor coverage for large hallways, retail areas, schools, airports, and other open facilities.

    Productivity & Performance

    21" Platform
    Up to 25,000 sq. ft./hr

    A more maneuverable platform for commercial facilities that still require high burnishing productivity.

    Pad Size: 21"

    Pad Speed: 2,000 RPM

    Engine: 603 cc

    Width: 22.8"

    Weight: 187 lb

    Noise Level: < 89 dB(A)

    28" Wide-Area Platform
    Up to 34,000 sq. ft./hr

    A wider burnishing path designed to maximize productivity across large, open commercial floor areas.

    Pad Size: 28"

    Pad Speed: 1,500 RPM

    Engine: 603 cc

    Width: 32.5"

    Weight: 200 lb

    Noise Level: < 89 dB(A)

    21" vs. 28" – Which Size Fits the Job?

    Choose the 21" model for:
    • More maneuverability
    • Narrower hallways and aisles
    • Smaller commercial floor areas
    • Facilities with more obstacles
    Choose the 28" model for:
    • Maximum floor coverage
    • Large open hallways
    • Retail and grocery floors
    • Schools, airports, and large facilities

    400BU Machine Features

    603 cc Propane Engine
    Commercial engine power for ultra-high-speed floor burnishing.
    Battery Start
    Select configurations use a 12V battery-start system for convenient startup.
    Steel LP Tank Configurations
    Steel propane-cylinder configurations are available within the 400BU family.
    Clutch Options
    Select models include a clutch-equipped burnishing drive system.
    Emissions Monitoring
    Select X-designated configurations include emissions-monitoring equipment.
    Commercial Workhorse Design
    Built as a straightforward propane burnisher for demanding commercial floor-maintenance programs.

    Best For

    • Large areas of finished hard flooring
    • High-frequency commercial burnishing programs
    • Schools and universities
    • Retail and grocery stores
    • Airports and public facilities
    • Building-service contractors
    • Facilities that want propane productivity without cord restrictions

    Not Designed For

    • Wet scrubbing or solution recovery
    • Carpet cleaning
    • Routine debris pickup
    • Heavy floor-finish stripping
    • Floors not suitable for ultra-high-speed burnishing

    Quick Highlights

    21" or 28" Burnishing Path
    Choose the size that best fits facility layout and productivity needs.
    Propane Productivity
    Supports large-area floor maintenance without power-cord limitations.
    Clutch Options
    Clutch-equipped configurations are available in both machine sizes.
    Emissions Monitor Options
    Select X configurations include emissions monitoring.
    High-Speed Burnishing
    Designed for commercial gloss restoration and floor-finish maintenance.
    Commercial Floor Care
    Built for institutional, commercial, and contractor applications.

    Recommended Applications

    • High-speed burnishing
    • Gloss restoration
    • Large-area floor maintenance
    • Finished VCT maintenance
    • Schools and universities
    • Retail and grocery stores
    • Airports and public spaces
    • Government facilities
    • Building-service contractors
    • Commercial properties

    Available Configurations

    400BU21BM
    21" Standard Propane Burnisher
    400BU21BSM
    21" Standard Propane Burnisher – Steel Tank Configuration
    400BU21BSMX
    21" Propane Burnisher + Emissions Monitor
    400BU21BCSM
    21" Propane Burnisher + Clutch
    400BU21BCSMX
    21" + Clutch + Emissions Monitor
    400BU28BSM
    28" Wide-Area Propane Burnisher
    400BU28BSMX
    28" Wide-Area Propane Burnisher + Emissions Monitor
    400BU28BCSM
    28" Wide-Area Propane Burnisher + Clutch
    400BU28BCSMX
    28" + Clutch + Emissions Monitor

    Understanding the Configurations

    Standard
    Standard 400BU configuration without the clutch or emissions-monitor designation.
    Clutch
    Clutch-equipped configurations include a clutch in the burnishing drive system.
    Emissions Monitor
    X-designated configurations include emissions-monitoring equipment.

    Included with the Machine

    • Pioneer Eclipse 400 Series propane burnisher in selected configuration
    • 21" or 28" burnishing platform
    • Clutch on clutch-equipped configurations
    • Emissions monitor on selected X configurations
    • Operator handle and controls
    • Operator documentation

    Burnishing Pads & Accessories

    Match the selected 21-inch or 28-inch burnisher with the proper burnishing pad for the floor finish and desired gloss level.

    Shop Pads, Brushes & Pad Drivers

    Common 400BU Replacement Parts

    Use your machine model and serial number when confirming replacement-part compatibility.

    Engine & Routine Maintenance Parts

    MP035200 – Engine Dust / Recoil Filter
    Kawasaki engine recoil filter.
    Shop MP035200
    KA490657007 – Engine Oil Filter
    Replacement engine oil filter.
    Shop KA490657007
    KA110130752 – Engine Primary Air Filter
    Replacement paper air-filter element.
    Shop KA110130752
    KA110137046 – Engine Air Pre-Cleaner
    Replacement foam air pre-cleaner element.
    Shop KA110137046
    KA920702112 – Spark Plug
    Replacement engine spark plug.
    Shop KA920702112

    Battery, Electrical & Fuel Parts

    MP362200 – 12V AGM Battery
    12V 210 CCA AGM replacement battery.
    Shop MP362200
    SS2570 – 20 Amp Fuse
    Replacement 20-amp fuse.
    Shop SS2570
    MP105900 – Steel LP Cylinder
    Steel safety-fill LP cylinder.
    Shop MP105900

    Drive Belts

    MP8070 – BX-46 Drive Belt
    For compatible 21-inch 400BU models.
    Shop MP8070
    MP272900 – BX-57 Drive Belt
    For compatible 28-inch 400BU models.
    Shop MP272900

    Pad Holders

    MP269400 – 21" Pad Holder
    Malish pad holder with riser for compatible 21-inch models.
    Shop MP269400
    MP351200 – 28" Pad Holder
    Malish pad holder with riser for compatible 28-inch models.
    Shop MP351200

    Spindle & Drive Components

    MP107700 – Spindle with 6.75" Pulley Assembly
    Spindle assembly for compatible 21-inch models.
    Shop MP107700
    MP447700 – Spindle with 9.25" Pulley Assembly
    Spindle assembly for compatible 28-inch models.
    Shop MP447700
    MP071800 – Belt Tensioner with 4" Pulley
    Replacement belt-tensioner assembly.
    Shop MP071800

    Propane, Emissions & Clutch Components

    SA026300 – Regulator Replacement Kit
    Replacement propane regulator kit.
    Shop SA026300
    MP402300 – Emissions Monitoring Module Assembly
    Replacement emissions-monitoring module for compatible monitor-equipped configurations.
    Shop MP402300
    MP4787 – Clutch Assembly
    Replacement clutch assembly for compatible clutch-equipped configurations.
    Shop MP4787

    Need Another 400BU Part?

    Monster Janitorial can help identify additional Pioneer Eclipse 400 Series replacement and service parts. Have your machine model and serial number available when confirming compatibility.

    Shop Pioneer Eclipse Parts

    Manuals & Documents

    Manufacturer Warranty

    • Machine warranty: 1 year parts and labor
    • Engine warranty: 2 years parts and labor
    • Normal wear and maintenance items are excluded
    • Refer to the linked Pioneer Eclipse warranty document for complete terms and exclusions

    MJ University

    Learn more about floor machines, burnishing pads, floor finishes, and commercial floor-care equipment.

    Frequently Asked Questions

    What sizes are available?

    The 400BU family shown here includes 21-inch and 28-inch burnishing platforms.

    How productive is the 400BU?

    The 21-inch platform is rated up to approximately 25,000 square feet per hour, while the 28-inch platform is rated up to approximately 34,000 square feet per hour.

    What is the pad speed?

    The 21-inch platform operates at approximately 2,000 RPM and the 28-inch platform at approximately 1,500 RPM.

    What does the X mean in the SKU?

    X-designated configurations include emissions-monitoring equipment.

    Are clutch models available?

    Yes. Clutch-equipped configurations are available within both the 21-inch and 28-inch machine families.

    Do the 21-inch and 28-inch models use the same drive belt?

    No. Compatible 21-inch configurations use MP8070, while compatible 28-inch configurations use MP272900.

    Is the 400 Series an automatic scrubber?

    No. The 400BU is an ultra-high-speed burnisher designed for gloss restoration. It does not dispense or recover cleaning solution like an automatic scrubber.

    Institutional Purchasing Support

    • D-U-N-S: 080901706
    • UEI: U4TYL7A5LEN9
    • Purchase orders accepted for qualifying organizations
    • Formal quotes available
    • Bid and specification support
    • Multi-unit purchasing assistance

    Tax-Exempt Purchasing

    Tax-exempt organizations can create a Monster Janitorial account and email their tax-exemption certificate to our team.

    Email certificates to sales@monsterjanitorial.com .

    Create an Account

    Why Choose Monster Janitorial?

    Equipment Support
    Help choosing the right burnisher configuration.
    Replacement Parts
    Pioneer Eclipse parts and maintenance support.
    Institutional Purchasing
    Quotes, POs, and tax-exempt support.
    Bilingual Support
    English and Spanish sales assistance available.

    Need Help Choosing a 400 Series Burnisher?

    Contact Monster Janitorial for machine selection, replacement parts, quotes, and institutional purchasing support.

    Other Details

    Engine: Parts & Labor - 2 yrs. Machine: Parts & Labor - 1 yr. Excludes wear and maintenance items. Warranty Notice: This equipment includes a manufacturer’s warranty. Monster Janitorial is not authorized to provide warranty labor or onsite service outside of South Texas. If you are purchasing outside our service area, warranty service must be coordinated directly with the manufacturer or an authorized service provider in your region. For warranty claims, please contact the manufacturer with your equipment’s model and serial number. We are happy to assist with parts identification or referrals to local service centers, but on-site warranty labor is not covered by Monster Janitorial outside our territory.

    Product Videos

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    Custom Field

    Type Propane Floor Burnisher
    Cleaning Width 21 in., 28 in.
    Sound Level < 89 dB(A
    Pad Speed 1,500–2,000 RPM
    Recommended Surfaces Finished VCT, Terrazzo, Polished Concrete, Sealed Hard Floors
    Clutch Options Available on Select Models
    Power Type Propane

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