8″ Polyurethane on Polyolefin Blue/Black – Stainless Steel Rigid 9
$84.71
Technical Specifications












Description
Theย Stainless Steel Model 9 Casterย withย Polyurethane on Polyolefin Wheelย is an industrial stainless steel caster designed for wet and corrosive environments where hygiene and durability are key. Made from 1/2โ thick stamped 304 stainless steel, it features a 5/8โ bolt and nut kingpin welded together to handle manual applications, with two rows of ball bearings for axial and thrust loads, and lubrication fittings in the swivel bearing and 1/2โ stainless steel axle. It supports up to 1,200 lbs per caster, with a mounting plate of 4โณ x 4-1/2โณ (bolt hole pattern 2-5/8โณ x 3-5/8โณ to 3โณ x 3โณ), and offers swivel lock and total lock brake options, making it suitable for labs, food service, and bakeries.
This caster has a 2โ wide Polyurethane on Polyolefin Wheel, available in 4โ, 5โ, 6โ, and 8โ diameters, with a non-marking, injection-molded polyurethane tire mechanically bonded to a polyolefin center, in maroon on gray or blue on black colors. The wheel has a Shore A 90-95 durometer, operates from -30ยฐF to 180ยฐF, and supports up to 800 lbs per caster, rolling easier than gray rubber on smooth floors while resisting many chemicals and solvents. It comes with bearing options like roller, Delrin, plain bore, ball, precision sealed ball, stainless precision sealed ball, or stainless steel roller bearings, but itโs not suited for shock, overloading, abuse, obstructions, poor floors, or prolonged standing loads.
The Model 9 is used inย research labs,ย hospitals,ย food service, schools, andย bakeriesย for its quiet operation and floor protection, meetingย NSF and ROHS standardsย with an electrolytic finish for smoothness. Itโs ideal for wet settings like fisheries, cruise ships, and autoclaves, but for mechanically powered or abusive applications, the Model G15 (up to 1500 lbs) is recommended. Available online at Caster City with a fast lead time, this stainless steel caster fits institutional needs; contact Caster City at 800-501-3808 for ordering assistance.
Rigid casters are chosen because they provide fixed-direction stability for heavy loads, enabling easy and ergonomic straight-line movement in applications like conveyor systems or steel track equipment.
Applications for Stainless Steel Model 9 with Polyurethane on Polyolefin Wheel
- Food Processing Heavy-duty ingredient carts, mobile processing equipment, washdown-ready maintenance carts
- Pharmaceutical Manufacturing Cleanroom transport carts, sterile equipment movers, heavy lab instrument transport
- Chemical Processing Chemical container transport carts, mobile reactors, maintenance tool carts
- Marine and Coastal Dock and shipboard cargo carts, fish processing equipment movers, coastal facility machinery transport
- Healthcare Heavy medical equipment transport (e.g., MRI, CT scanners), sterilizer and autoclave movers, supply and laundry carts
- Laboratories Hazardous material transport carts, sensitive equipment movers, mobile workstations
- Water Treatment Chemical feed system carts, filter and pump transport, maintenance equipment movers
- Automotive and Aerospace Parts and component transport in corrosive areas, tool and die movers, assembly line equipment transport
Applications for Stainless Steel Model 9:
- Food Processing Heavy-duty ingredient carts, mobile processing equipment, washdown-ready maintenance carts
- Pharmaceutical Manufacturing Cleanroom transport carts, sterile equipment movers, heavy lab instrument transport
- Chemical Processing Chemical container transport carts, mobile reactors, maintenance tool carts
- Marine and Coastal Dock and shipboard cargo carts, fish processing equipment movers, coastal facility machinery transport
- Healthcare Heavy medical equipment transport (e.g., MRI, CT scanners), sterilizer and autoclave movers, supply and laundry carts
- Laboratories Hazardous material transport carts, sensitive equipment movers, mobile workstations
- Water Treatment Chemical feed system carts, filter and pump transport, maintenance equipment movers
- Automotive and Aerospace Parts and component transport in corrosive areas, tool and die movers, assembly line equipment transport
Heavy-Duty Casters for Stainless Steel Applications
- Food and Beverage Industry
- Moving large mixing bowls in food processing plants
- Transporting vats and ingredient containers
- Bakery racks for dough troughs and oven trays
- Mobile workstations in commercial kitchens
- Serving carts in restaurants
- Bussing carts for clearing tables
- Food preparation carts in catering services
- Beverage dispensing carts in breweries
- Wholesale good trolleys near ovens and grills
- Mobile storage racks in cold rooms
- Ingredient carts in confectionery production
- Seafood processing carts in wet environments
- Healthcare and Pharmaceutical Industry
- Hospital beds for patient transport
- Medical equipment carts (e.g., IV poles, monitors)
- Pharmacy dispensing carts for medication delivery
- Sterile processing carts in surgical units
- Autoclave carts for sterilizing equipment
- Cleanroom carts for pharmaceutical manufacturing
- Mobile diagnostic equipment carts (e.g., ultrasound machines)
- Laundry carts in hospital facilities
- Food service carts in hospital cafeterias
- Emergency crash carts for rapid response
- Laboratory carts for sample transport
- Mobile storage for medical supplies
- Chemical and Petrochemical Industry
- Transporting chemical containers in processing plants
- Mobile workstations in chemical labs
- Carts for hazardous material storage
- Equipment movers in petrochemical refineries
- Mobile mixing stations for chemical blending
- Drum handling carts for corrosive liquids
- Maintenance carts for plant upkeep
- Mobile testing equipment in quality control labs
- Carts for transporting cleaning agents
- Mobile storage for chemical reagents
- Marine and Coastal Environments
- Dock carts for loading/unloading cargo
- Shipyard equipment movers for heavy parts
- Offshore platform supply carts
- Maintenance carts for marine facilities
- Mobile storage for fishing equipment
- Carts for transporting marine supplies
- Mobile repair stations on ships
- Deck equipment carts for navigation tools
- Mobile fuel containers on docks
- Carts for handling ropes and rigging
- Manufacturing and Industrial Settings
- Assembly line parts carts for production
- Tool carts for factory maintenance
- Heavy machinery transport carts
- Welding carts for mobile welding stations
- Aerospace parts movers in aircraft assembly
- Automotive component carts in car manufacturing
- Mobile workstations for quality control
- Scrap metal carriers in recycling lines
- Tow line carts for industrial towing
- Mobile storage for raw materials
- Carts for transporting finished goods
- Utility carts for moving tools across factories
- Mobile jigs and fixtures for machining
- Warehousing and Logistics
- Platform trucks for heavy freight
- Stock carts for inventory management
- Dollies for moving large packages
- Hand trucks for palletized goods
- Storage bin movers in distribution centers
- Mobile shelving units for order picking
- Carts for transporting oversized items
- Mobile loading dock equipment
- Carts for moving fragile goods
- Heavy-duty carts for cross-docking
- Mobile racks for temporary storage
- Carts for handling return merchandise
- Hospitality Industry
- Luggage carts in hotels and resorts
- Laundry trucks for linens and towels
- Serving carts for room service
- Bussing carts in banquet halls
- Mobile bar carts for events
- Housekeeping carts for cleaning supplies
- Mobile furniture for event setups
- Carts for transporting AV equipment
- Mobile storage for catering supplies
- Carts for moving outdoor furniture
- Mobile trash bins in high-traffic areas
- Institutional Settings
- Mobile furniture in schools (e.g., desks, tables)
- Maintenance carts in government buildings
- Food service carts in prison cafeterias
- Library carts for book transport
- Mobile AV carts in classrooms
- Janitorial carts for cleaning supplies
- Mobile storage for sports equipment
- Carts for transporting mail in offices
- Mobile voting booths in polling stations
- Carts for moving lab equipment in universities
- Mobile shelving in archives
- Cleanroom Environments
- Equipment carts in semiconductor manufacturing
- Laboratory carts in biotech research
- Sterile environment carts in pharmaceuticals
- Mobile workstations for cleanroom assembly
- Carts for transporting sensitive electronics
- Mobile storage for cleanroom supplies
- Carts for handling wafers in microchip production
- Mobile testing equipment in cleanroom labs
- Carts for moving sterile tools
- Mobile racks for cleanroom garments
- Carts for transporting optical components
- Waste Management
- Moving bins in recycling plants
- Hazardous waste container carts
- Mobile sorting stations for recyclables
- Carts for transporting compost materials
- Mobile equipment for waste treatment facilities
- Carts for handling industrial byproducts
- Mobile storage for cleaning tools
- Carts for moving scrap in salvage yards
- Mobile bins for medical waste
- Carts for transporting sludge in treatment plants
- Additional Niche Applications
- Homebrewing carts for stainless steel brewing tables
- Mobile display carts in retail settings
- Carts for moving props in film studios
- Mobile art supply carts in studios
- Carts for transporting instruments in music venues
- Mobile gardening carts for greenhouse tools
- Carts for moving heavy signage in advertising
- Mobile repair carts in amusement parks
- Carts for transporting batteries in EV charging stations
- Mobile voting machine carts in elections
- Carts for moving heavy sculptures in museums
- Mobile equipment for disaster relief setups
FAQ
What is the Stainless Steel Caster Model 9?
The Stainless Steel Caster Model 9 is an industrial plate caster with plate mount, handling up to 1,200 pounds per caster. It has a top plate size of 4โณ x 4 1/2โณ, bolt hole spacing from 2-5/8โณ x 3-5/8โณ to 3โณ x 3โณ, and uses 3/8โณ mounting bolts. Made from 1/2โณ thick 304 stainless steel, it features a 5/8โณ welded kingpin, 1/2โณ stainless steel axle, lubrication fittings, and is built for wet and corrosive spots like food processing, pharma plants, and marine use.
What environments and applications work best for the Stainless Steel Caster Model 9?
This heavy duty stainless steel caster is made for wet and corrosive environments, like food processing plants, pharmaceutical manufacturing, marine settings, hospitals, labs, water treatment facilities, and automotive or aerospace plants. It handles tasks such as heavy ingredient carts, cleanroom transport, dock cargo carts, mobile processing equipment, sterile movers, container transport in chemical plants (with acids below 10%), fish processing gear, heavy medical equipment like MRI machines, hazardous material carts, and chemical feed systems. The 304 stainless steel frame resists rust and chemicals, perfect for washdowns, and meets NSF and ROHS standards.
What is the load capacity of the Stainless Steel Caster Model 9?
The Model 9 supports up to 1200 lbs per caster, but it depends on the wheel you pick. It’s rated for manual use on smooth floors, no steep inclines over 3 degrees, and speeds under 3 mph.
What bearing options are available for the Stainless Steel Caster Model 9 with PB Polyolefin Wheel?
For the Model 9 stainless caster with PB Polyolefin Wheel, you can choose roller bearings (R), Delrin bearings (D), plain bore (P), ball bearings (BB), precision sealed ball bearings (PS), stainless precision sealed ball bearings (SPS), or stainless steel roller bearings (SSR). These let you customize for wet environments.
Why choose the PB Polyolefin Wheel for the Stainless Steel Caster Model 9?
The 304 stainless steel frame resists rust and chemicals, making it great for wet spots with frequent cleaning. The polyolefin wheel handles water, mild acids (below 10%), grease, and oils, so it fits labs and food service well, but skip it for high-acid stuff.
What brake options does the Stainless Steel Caster Model 9 have?
The SS-9 stainless swivel caster has three braking options: TB – Top Lock Brake (pedal on side of wheel), TL – Total Locking Brake (pedal behind wheel, locks swivel and wheel), and TKB – Plastic High Temp Top Lock Brake (pedal behind wheel). It also offers SL4 – Welded Stainless Steel Swivel Lock (turns swivel into rigid for straight lines or ramps) and RS – Raceway Seals to protect from harsh environments.
How do I maintain the Stainless Steel Caster Model 9?
Lubricate the swivel bearing and axle regularly with the fittings to keep it moving smooth, and clean off debris after washdowns. Avoid leaving heavy loads sitting long, shocks, or harsh hits to keep it performing in wet spots.
Where can I buy the Stainless Steel Caster Model 9 with PB Polyolefin Wheel?
Get the Model 9 stainless caster from Caster Cityโs website at www.castercity.com or call 800-501-3808. Lead time is usually 2 days for fast delivery.
How does the Stainless Steel Caster Model 9 compare to Model 3 or G15?
The Model 9 heavy duty stainless steel caster is a step up from our Stainless Steel Caster Model 3 plate casters, supporting up to 1200 lbs per caster depending on the wheel. It has two rows of ball bearings for axial and thrust loads, a 5/8โณ nut and bolt kingpin welded together for manual abuse, and is made of 1/2โณ thick stamped 304 stainless steel. If your setup is abrasive or powered, check the G15 modelโit handles up to 1500 lbs with the same wheels, and some wheels rate higher on it due to tougher build. Call 800-501-3808 for help.
Whatโs the difference between swivel and rigid versions of the Stainless Steel Caster Model 9?
Swivel versions of this stainless swivel caster have full rotation for maneuvering, with a cold-forged top plate, yoke base, welded legs, and 5/8โณ kingpin. Rigid casters don’t swivel, made from 1/4โณ thick 304 stamped stainless steel for the plate and legs, with a 1/2โณ axle bolt. Pick rigid when price matters or for straight-line travel over long distances or rampsโinstall them opposite the push handle for better steering. Both are NSF and ROHS compliant, great for corrosive washdowns like food processing.
What wheel options are available for the Stainless Steel Caster Model 9?
This caster has a broad selection of 2โณ wide wheels that are NSF and ROHS compliant, including polyolefin (like PB), gray soft rubber, neoprene, polyurethane varieties, nylon, phenolic, high-temp options, V-groove, water-resistant polyurethane, and solid stainless steel. Diameters from 4โณ to 8โณ.
Is the Stainless Steel Caster Model 9 suitable for total locking?
Yes, the Model 9 total lock stainless caster offers a TL – Total Locking Brake option, with the pedal behind the wheel to lock both swivel and wheel rotation. It’s not for holding on inclines, but great for securing in wet or corrosive setups.
What is the swivel radius and overall height for the Stainless Steel Caster Model 9?
The swivel radius is 3 1/2″ to 6 1/4″ depending on the wheel size, and it goes up to 6 1/2″ or 7 1/2″ if you add the total lock brake. Overall height is 5 5/8″ for 4″ wheels, 6 1/2″ for 5″, 7 1/2″ for 6″, and 9 1/2″ for 8″.
What construction details make the Stainless Steel Caster Model 9 durable?
The swivel has a cold forged top plate and yoke base from 1/4″ stainless steel, with 1/4″ thick legs welded inside and out. It uses a 1/2โ diameter hollow bolt axle with lock nut, and comes with grease fittings for both swivel and wheel bearings.
Can the Stainless Steel Caster Model 9 handle high temperatures?
Yeah, it can with the right wheels like high temp glass filled nylon or high temp phenolic fiberglass, but check the max capacityโit drops if you’re running over 40 minutes at peak temps. Consult if needed.
What installation tips are there for the Stainless Steel Caster Model 9?
Make sure rigid casters are parallel to each other, swivels are parallel to the floor, and use at least 4 bolts on the mounting plate. Don’t distort the swivel bearing during install, like from bad welding, and avoid dragging sideways or dropping loads hard.
What’s the weight of the Stainless Steel Caster Model 9 swivel version?
It weighs 5 to 8 lbs for most setups, up to 12 lbs if you go with solid stainless steel wheels. Knock off 1 lb for the rigid version.
What is 304 stainless steel in the Stainless Steel Caster Model 9?
304 stainless steel is the most common stainless out there, an austenitic alloy with about 18% chromium and 8% nickelโoften called 18/8 stainless. It gives excellent corrosion resistance against rust and chemicals, which is why it’s used for the frame in the Model 9, making it perfect for wet and corrosive spots like food processing or pharma plants. It’s also NSF and ROHS compliant for hygiene standards.
What are the overall heights for the Stainless Steel Caster Model 9 with different wheel diameters?
Overall height of Stainless Steel Model 9 with 4 inch diameter wheel: 5-5/8″. With 5 inch wheel: 6-1/2″. With 6″ wheel: 7-1/2″. With 8 inch wheel: 9-1/2″.
What applications is this caster best for?
This stainless steel caster Model 9 is best for manually moved setups only, like carts or equipment that isnโt towed or abusedโstick to pushing by hand on smooth floors, no powered movement or rough handling. It’s built for wet, corrosive, or high-heat spots where you need rust resistance and easy washdowns, like food processing, pharma, or marine work.
Hereโs a breakdown of top / most common applications by industry that the Stainless Steel Model 9 is used with:
Our #1 goal is to help you find the best caster and wheels for your needs. If you need help finding the right casters, contact our team of professionals. You can also customize many of our casters with a variety of options such as swivel locks, wheel brakes and zerk fittings. We ship our products from assembly plants in Georgia, Pennsylvania, Virginia, Texas, Nevada and Canada. Whether youโre a one-man shop or a global giant, we can provide you with: We specialize in Business to Business, however, consumer orders are gladly accepted and we can provide you with:
- Fastest Lead Time in the Industry
- Caster performance data.
- Comparative data.
- Customized caster solutions.
- Help with caster solutions.
- Case studies by industry or application.
- Manufacturer and Distributor of over $25 million dollars in Finished Component Partsย
- Majority of Orders Processed and Shipped in 2 Days or Less


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August 21, 2025











