Product Description
22" Walk-Behind Auto Scrubber | Cylindrical Deck | AGM Battery | Karcher B 50 W Bp R55
The Karcher B 50 W Bp R55 is a compact, high-performance walk-behind auto scrubber built for fast, consistent daily floor cleaning in schools, healthcare, retail, warehouses, and municipal buildings. The R55 cylindrical brush deck scrubs while helping collect light debris in the same pass, making it a strong choice for textured surfaces and facilities that see sand, grit, and tracked-in dirt.
This configuration includes an integrated AGM battery system and durable cast-aluminum scrub head and squeegee assemblies for long service life. A parabolic squeegee design helps deliver excellent water recovery and fast drying, even on uneven floors and during tight turns.
Quick Highlights
22 in cleaning path | 13.2 gal tanks | Traction drive | Parabolic squeegee for strong recovery | Cylindrical brush deck with presweep effect
22 in cleaning path | 13.2 gal tanks | Traction drive | Parabolic squeegee for strong recovery | Cylindrical brush deck with presweep effect
Compare B 50 W Bp Configurations
- See the 20" Orbital (O51) AGM version
- Upgrade to Lithium Battery System: B 50 W Bp R55 Li-ion (1.533-258.0)
Free Demo Available
Want to see the B 50 W Bp in action before you buy? We can help schedule a free demo when available. Email sales@monsterjanitorial.com with your facility details, flooring type, and approximate square footage to confirm availability and recommendations.
Recommended Applications
- Schools and universities (hallways, commons, classrooms)
- Healthcare and clinics (hard surface corridors)
- Retail, grocery, and back-of-house areas
- Warehouses, light industrial, and distribution areas
- Sealed concrete, tile, VCT, and commercial resilient flooring
Key Features
- Cylindrical R55 deck helps scrub and collect light debris in one pass
- Cast-aluminum scrub head and squeegee assemblies for durability
- Parabolic squeegee design for strong water pickup and fast drying
- Traction drive helps reduce operator fatigue on longer runs
- Compact, maneuverable platform for tight areas and daily maintenance cleaning
Specifications
- Model: Karcher B 50 W Bp R55 (Cylindrical)
- Manufacturer Part Number: 9.176-020.0
- MPN (internal): MJK91760200
- Brush Cleaning Width: 22 in (R55 cylindrical deck)
- Vacuum Working Width: 33 in
- Solution / Recovery Tank: 13.2 gal / 13.2 gal
- Drive Type: Traction
- Operating Noise: approx. 65 dB(A)
- Brush Contact Pressure: approx. 34 lb
- Brush Speed: approx. 1,200 rpm (cylindrical)
- Dimensions (L x W x H): approx. 52 x 22.5 x 42 in
Included with this configuration
- R55 cylindrical scrub deck (included)
- 4.778-008.0 - Squeegee bar, parabolic, 850 mm / 33 in
- 4.400-011.0 - Squeegee blade set Linatex, 850 mm / 33 in (standard)
- 4.035-184.0 - Roller brush, medium (included with R55 model)
- 8.632-375.0 - AGM Battery (included with AGM models)
- On-board charger (included)
Optional / Not Included
- 4.400-005.0 - Squeegee blade set PU, 850 mm / 33 in
- 4.400-090.0 - Squeegee blade set natural rubber, 850 mm / 33 in
- 4.035-345.0 - Auto-Fill
- 2.644-365.0 - Add-on kit emergency stop (B 50 W)
- 4.400-089.0 - Set side strip oil resistant
- 4.400-104.0 - Set side strip for R55
- 2.644-228.0 - Add-on kit deflector roll stackable
- 5.035-488.0 - Home Base kit (adapter and cable hook)
- 4.070-075.0 - Home-Base universal hook kit (requires 5.035-488.0)
- 4.400-080.0 - Home-Base mop clip (requires 5.035-488.0)
- 6.980-077.0 - Home-Base double hook (requires 5.035-488.0)
- 6.980-078.0 - Home-Base holder handhold grey (requires 5.035-488.0)
- 2.644-313.0 - KEM Machine Connect (not included with this model)
R55 Cylindrical Brush and Roller Options
- 4.035-184.0 - Roller brush, medium (included)
- 4.762-409.0 - Roller brush, white (R55)
- 4.762-410.0 - Roller brush, orange (R55)
- 4.762-411.0 - Roller brush, green (R55)
- 8.635-692.0 - Cylindrical stripping sleeve
- 4.114-010.0 - Microfiber roller (R55)
- 4.762-415.0 - Pad roller shaft (R55)
- 6.369-733.0 - Roller pad on sleeve, green (R55)
- 6.369-734.0 - Roller pad on sleeve, red (R55)
Recommended Chemicals
- Pioneer Eclipse Lumen L350 Neutral Cleaner
- Pioneer Eclipse Low-Foam Neutral Cleaner
- Karcher Heavy Duty Degreaser 8.698-154.0
Shop Cleaning Chemical Pods | Shop Auto Scrubber Chemicals
Replacement Parts and Manuals
Need parts diagrams, wear items, or service parts? Visit our Karcher manuals hub:
Manuals and Documents
- Operating manual / Safety information
- Operating manual / Safety information
- Operating manual / Safety information
- Product Information Sheet
Manufacturer Warranty
Limited Warranty - Karcher North America
- 10 Years - Polyethylene (PE) housings
- 3 Years - Parts and service labor (through authorized service provider)
- Wear Items - 90 days against manufacturing defects (items such as brushes and squeegee blades)
- Battery Coverage - AGM battery warranty is handled by the battery manufacturer. If upgrading to a Karcher Li-ion battery system, the Li-ion battery includes a 5-year manufacturer's warranty.
View Full Karcher Warranty PDF
FAQ
- What does R55 mean? R55 is the 22-inch cylindrical (roller) scrub deck option. Cylindrical decks can help collect light debris while scrubbing, which is useful in entryways, corridors, and textured floors.
- Should I choose R55 cylindrical or O51 orbital? Choose R55 cylindrical when you want a presweep effect for grit and debris. Choose O51 orbital when you want very high mechanical agitation and lower chemical usage with pad-based cleaning.
- Is "orbital" always a rectangular scrub head? Not necessarily. "Orbital" refers to the motion pattern of the pad driver (an orbital movement), not the head shape.
Helpful Resources for Facility Managers
- How to Choose an Automatic Floor Scrubber for Schools and Government Buildings
- Lithium vs AGM vs Wet Batteries in Automatic Floor Scrubbers
- Karcher Automatic Floor Scrubber Maintenance Checklist
Institutional Purchasing Support
- Purchase orders accepted
- Tax-exempt account setup assistance
- Bid and specification support available
- D-U-N-S Number: 080901706
- UEI Number: U4TYL7A5LEN9
Why Choose Monster Janitorial?
- Authorized Karcher distributor
- OEM equipment, parts and accessories
- Fast order processing - most in-stock items ship within 24 hours
- 30-Day Returns
Tax-Exempt Purchasing
Tax-exempt? Create an account and email your certificate to sales@monsterjanitorial.com.
Questions before you buy? Email sales@monsterjanitorial.com or call 956-772-4842.
