Whiteman B46H90 Standard Walk-Behind Trowel
- 46-inch (1170mm) guard ring diameter
- Trowel covered by 1-year limited warranty
- Front access panel provides quick access to trowel arms and blades
- Center mount lifting bale included
- Spider and thrust collar assembly design simplifies routine maintenance
- Gearbox features top quality components & large oil capacity for years of trouble-free performance
- Optimally balanced for smooth finishing
- Handles available with either QuickPitch or Standard (knob type) pitch control
| Clutch Type | Centrifugal | |
| No. of Blades | 4 | |
| Ring Diameter | 46 in | 1168.4 mm |
| Rotor Speed | 60-130 RPM | |
| Handle Options |
SXH QXH |
| Overall Length | 75 in | 1910 mm |
| Overall Width | 46 in | 1170 mm |
| Overall Height | 41 in | 1044 mm |
| Operating Weight | 277 lb | 125.6 kg |
| Shipping Weight | 285 lb | 129.2 kg |
| Engine Make/Model | Honda GX-270 | |
| Start Method | Recoil | |
| Engine Power | 8.5 HP | 6.3 kW |
| Engine RPM | 3600 | |
| Fuel Type | Gasoline |
The Whiteman B46H90 Standard Walk-Behind Trowel stands at the pinnacle of professional concrete finishing, blending legendary Whiteman engineering with high-performance features that meet the demands of today’s toughest slabs, decks, and flooring jobs. Powered by a robust Honda GX270 8.5 HP engine, the B46H90 is purpose-built for contractors seeking smooth, perfectly burnished results and optimal productivity for medium- to large-area pours.
Whiteman B46H90: Engineered for the Modern Concrete Finisher
Produced by Multiquip, the B46H90 is celebrated for its blend of brute strength, balance, and detailed surface control. With a 46-inch rotor and four-blade design, this trowel machine ensures even finishes on more expansive surfaces than 24" or 36" alternatives. Its gear-driven power transmission, paired with a high-capacity, oil-lubricated gearbox, delivers years of trouble-free action—even during hard service in the heart of peak construction season.
Technical Specifications
| Feature | B46H90 Specification |
|---|---|
| Trowel Diameter | 46 in. (1170 mm) |
| Number of Blades | 4 |
| Engine | Honda GX270, 8.5 HP (6.3 kW) |
| Engine RPM | 3,600 |
| Starting Method | Recoil |
| Clutch | Centrifugal |
| Blade Speed | 60–130 RPM |
| Weight | 277 lbs (125.6 kg) |
| Length | 75 in. (1910 mm) |
| Width | 46 in. (1170 mm) |
| Height | 41 in. (1044 mm) |
| Handle Options | Standard Knob or QuickPitch |
| Fuel | Gasoline |
| Warranty | 1 Year Limited Warranty |
Key Features and Field Benefits
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Incredible Finishing Coverage: The 46-inch rotor lets you cover more square footage per pass, ensuring labor and time savings on every job.
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Honda GX270 Engine: This 8.5 HP, four-stroke engine leads the industry in reliability, ease of starting, fuel efficiency, and long service life.
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Heavy-Duty Gearbox: Large oil capacity and premium internal components keep the gearbox running cool and strong, extending part life even with heavy, all-day operation.
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Four-Blade Spider Assembly: Guarantees a uniform finish, easy blade changes, and robust support under full load.
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QuickPitch or Standard Handle Options: Choose the QuickPitch handle for instant pitch changes in 1/8" increments—perfect for adapting to fast-changing slab conditions—or the Standard option for precise, knob-based control.
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Front Access Panel: Allows fast service and blade checks, shortening maintenance intervals and boosting fleet uptime.
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Optimized Balance: Carefully distributed weight and geometry ensure the trowel floats and moves smoothly—even at slab edges or around obstacles.
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Center Mount Lifting Bale: Simplifies safe handling, transport, and loading on a busy jobsite.
Maintenance, Durability, and User Experience
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Oil-Lubricated Gearbox: Reduces temperature rise, noise, and wear—requiring fewer oil changes than exposed or partially greased boxes.
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Spider and Thrust Collar: The innovative design streamlines maintenance and allows faster repair, minimizing costly service delays.
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Robust Frame and Guard Ring: Protects the blades and arms, ensuring the trowel holds alignment and blade geometry for flawless surface results.
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Reliability: Battle-tested on commercial job sites across North America, the B46H90 is part of the world’s most trusted walk-behind trowel line—Whiteman/Multiquip.
Ideal Applications
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Commercial Industrial Slabs: Warehouses, tilt-wall facilities, large retail, and post-tensioned decks.
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Large Residential Projects: Garage floors, pool decks, driveways, and open interior slabs.
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Road & Infrastructure Flatwork: Sidewalks, parkways, parking aprons, and highway repairs.
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Shotcrete & Overlay Jobs: Where broad coverage and top FF/FL readings are required.
Comparison Table: B46H90 vs. 36-Inch Trowels
| Feature | B46H90 (46”) | Typical 36” Trowel |
|---|---|---|
| Rotor Diameter | 46” (1170 mm) | 36” (914 mm) |
| Engine Power | 8.5 HP GX270 | 5–6 HP GX160/GX200 |
| Blade Speed | 60–130 RPM | 60–130 RPM |
| Weight | 277 lbs (125.6 kg) | 180–220 lbs (avg) |
| Gearbox | Large oil capacity | Standard/greased |
| Handle Options | QuickPitch, Standard | Usually knob-type only |
| Best Use | Big slabs, rapid coverage | Edge work, small pours |
Contractor Reviews and Industry Reputation
The B46H90 is universally praised by finishing crews for its balance, floating action, and ability to close even stiff mixes to a burnished sheet with fewer passes. Foremen love the reliability of the Honda engine and the unmatched longevity of the gearbox and spider design. Crews routinely report that Whiteman’s QuickPitch handle saves time and lets operators respond instantly to changing concrete windows, reducing “drag marks” and ensuring more uniform finish gloss and durability.