Autoclave Caster – 5″ Economy Stainless Steel Caster with Phenolic Wheel for Washdowns
$53.92
Technical Specifications












Description
The Stainless Steel Plate Caster Model K3A is a solid, budget-friendly choice for light-duty jobs in wet or corrosive spots like animal labs or pharmaceutical laboratories where autoclave washdowns are common. Built from stamped 304 stainless steel, it handles up to 300 lbs per caster—perfect for carts moving lab gear, food prep stuff, or medical supplies on smooth floors. The 5” phenolic wheel shown is non-marking, resists flat spotting under heavy loads, and takes shocks like a champ, but it can soak up moisture over time and wear down with heavy washdowns. It’s got a double ball raceway for easy swiveling, a 1/2” stainless rivet center pin, and a 3/8” axle bolt with a nylon locking nut. You can add a stainless lube axle for greasing the wheel. It’s NSF and ROHS compliant, so it’s safe for hygienic settings.
The Stainless Steel Plate Caster Model K3A offers two brake options: the TB – Top Lock Brake (pedal on side, suitable for high temperatures) and the PTB – Plastic Top Lock Brake (plastic pedal behind the wheel), both locking the wheel only and not designed for inclines. Stainless versions ensure compatibility with washdown environments. Contact 800-501-3808 for specific compatibility.
For animal labs, noise can be a real issue with the standard stainless steel spanner bushing rubbing against the caster leg—makes a squeaky racket when dry. That’s why we offer an optional nylon spanner bushing to cut down on the noise, keeping things quiet and avoiding complaints in sensitive lab setups. The K3A’s open swivel bearing skips the metal shield to avoid trapping water during washdowns, which is great for keeping things clean but means it’s not as tough as our Model 3. Get it at www.castercity.com or call 800-501-3808—ships in about 2 days, standard or mirror finish.
This caster’s perfect for light-duty carts in places like food processing, pharma labs, or hospitals where you need corrosion resistance on a budget. The phenolic wheel holds up under stationary loads without flattening, but don’t push it with shocks, impacts, or too much chemical exposure. Rinse it after washdowns, use the lube axle if you got it, and you’re good to go for years in the right setup.
Gray Iron Caster Wheels from Caster City

The Gray Iron Industrial Caster Wheels we engineer at Caster City are a low-cost solution primarily chosen for their affordability, offering a budget-friendly option for applications where cost is a priority and floor protection is not a concern. Available in 2” and 3” widths with diameters ranging from 3” to 12”, these wheels are equipped with a lubrication fitting in the hub for easy maintenance and come with either roller bearings or sealed precision ball bearings for reliable performance. Designed to support heavy loads without developing flat spots, Gray Iron wheels are a practical choice for static or low-mobility applications in industrial settings, capable of withstanding temperatures up to 400°F depending on the application.
While Gray Iron Caster Wheels provide an economical alternative, they are not recommended for severe or abusive applications due to their lower strength compared to steel wheels. For only a modest increase in cost, we recommend our steel wheels, which offer nearly twice the strength and durability. Gray Iron wheels will damage most factory floors under heavy loads, so they are typically used on steel plating, in metal channels, or as V-grooved wheels rolling on inverted angle iron tracks to protect costly flooring. These wheels are best suited for environments where budget constraints outweigh the need for enhanced performance or floor preservation.
Ideal for cost-conscious applications requiring reliable load support, Gray Iron Industrial Caster Wheels deliver functionality at a low initial cost. However, for superior strength and longevity, we encourage customers to consider our steel wheel options. Contact Caster City to discuss your needs or for custom configurations of our Gray Iron Caster Wheels, ensuring you get the most cost-effective solution for your industrial requirements.
Phenolic Caster Wheels from Caster City
Our Phenolic Caster Wheels, made from macerated canvas mixed with phenolic resin and molded under high pressure and temperature are a cost-effective, hard-composition, non-marking solution ideal for supporting heavy stationary loads that move infrequently. With a hardness comparable to polished maple flooring and a Durometer of Shore D 90, these wheels are designed to handle large loads comparable to metal wheels without developing flat spots, even when parked for prolonged periods under load. Available in diameters from 3” to 18” and widths from 1-¼” to 4”, they come standard with roller bearings or optional precision sealed ball bearings, making them perfect for smooth concrete surfaces in industrial settings like warehouses or manufacturing facilities.
These phenolic caster wheels are highly resistant to oil, grease, gasoline, and mild acids, and can withstand shock loads and impacts from small obstructions. They are recommended for storage loads without permanent set and offer slight floor wear, except on already deteriorating surfaces. For enhanced performance, a laminated unmacerated tread option provides 25% more capacity and greater chip resistance, though the wheel material may chip or cut from contact with steel plates or rough surfaces. With a temperature range of -40°F to +250°F, and intermittent use up to 300°F, these wheels are built for durability in dry environments where they excel in supporting heavy static loads.
While Phenolic Caster Wheels are tough and versatile, they are not suitable for wet applications or environments with excessive exposure to water, oil, or chemicals, as they can slowly absorb these substances and fail over time. For applications involving routine moisture or strong acids and alkaline solutions, consider alternative wheel materials. Ideal for dry, high-capacity settings requiring impact resistance and floor protection, these wheels are a reliable, economical choice. Contact Caster City at 800-501-3808 for assistance with custom configurations or to place an order for our durable Phenolic Caster Wheels.
FAQ
What is the Stainless Steel Plate Caster Model K3A for Autoclave Washdowns?
The Stainless Steel Plate Caster Model K3A is an economy light-duty caster designed for hand-powered use in wet or corrosive environments, such as autoclave washdowns in animal labs or butcher tables. Constructed from stamped 304 stainless steel, it supports up to 300 lbs per caster with the right wheel, like the 5” phenolic wheel shown. It features a double ball raceway for smooth swiveling, a 1/2” stainless steel rivet center pin, and a 3/8” axle bolt with a latching nut. Optional stainless steel lube axle and mirror finish available. NSF and ROHS compliant.
What environments and applications work best for the Stainless Steel Plate Caster Model K3A with a 5” Phenolic Wheel?
The K3A with a 5” phenolic wheel is ideal for wet, corrosive settings like animal labs, butcher tables, food processing, and pharmaceutical facilities requiring autoclave washdowns. Its stainless steel construction resists rust, and the phenolic wheel’s non-marking, hard composition suits light-duty carts for lab equipment, food prep, or medical supplies on smooth floors in hygienic environments.
What is the load capacity of the Stainless Steel Plate Caster Model K3A?
Each K3A caster supports up to 300 lbs, allowing a set of four to handle up to 1,200 lbs in manual use on smooth floors, no inclines over 3 degrees, speeds under 3 mph. Capacity depends on wheel choice; the 5” phenolic wheel is optimal for stationary loads without flat spotting.
What wheel options are available for the Stainless Steel Plate Caster Model K3A?
The K3A offers a wide range of NSF/ROHS-compliant wheels, including the 5” phenolic wheel (Shore D 90, -40°F to +250°F), plus other sizes (3” to 18” diameters, 1-1/4” to 4” widths) like rubber, polyurethane, or nylon. Phenolic wheels are hard, non-marking, and resist flat spotting under prolonged loads, making them a great economic choice for labs with frequent washdowns, though they can absorb moisture over time and wear down with excessive exposure.
What bearing options are available for the Stainless Steel Plate Caster Model K3A?
The 5” phenolic wheel comes standard with roller bearings, with optional precision sealed ball bearings for smoother operation. Other wheel types may offer additional bearings like Delrin or stainless steel options for enhanced corrosion resistance in wet settings. Contact 800-501-3808 for specifics.
What are the main benefits of the 5” Phenolic Wheel in the Stainless Steel Plate Caster Model K3A?
The 5” phenolic wheel provides a hard, non-marking surface that resists flat spotting under prolonged stationary loads, withstands shock and small obstructions, and supports up to 300 lbs. Paired with the K3A’s 304 stainless steel frame, it’s durable for autoclave washdowns, offering corrosion resistance and hygiene for labs and food prep.
Why is the Stainless Steel Plate Caster Model K3A considered an economy caster?
The K3A is an economy caster due to its lack of a metal shield over the swivel bearing and no standard lubrication fitting in the swivel, reducing cost. The open bearing design prevents water retention from washdowns, avoiding debris buildup in applications like animal labs or butcher tables, but it’s less robust than premium models like the Model 3.
What brake options are available for the Stainless Steel Plate Caster Model K3A?
The K3A offers a Total Locking Brake (TL) to lock both wheel and swivel or a Top Lock Brake (TB, pedal on side) to lock the wheel only. Stainless steel brake options are available for washdown compatibility. Brakes are not designed for inclines. Contact 800-501-3808 for compatibility details.
How do I maintain the Stainless Steel Plate Caster Model K3A for autoclave washdowns?
Rinse after washdowns to clear debris, especially in wet environments. Use the optional lube axle to grease the wheel for smooth operation. Avoid shock loads, impacts, or prolonged chemical exposure to the phenolic wheel, which may absorb moisture over time and wear down. Inspect for wear and ensure brakes function properly.
Where can I buy the Stainless Steel Plate Caster Model K3A?
Purchase the K3A from Caster City’s website at www.castercity.com or call 800-501-3808. Lead time is typically 2 days for fast delivery, with standard or mirror finish stainless steel options.
How does the Stainless Steel Plate Caster Model K3A compare to Model 3?
The K3A is an economy version of the Model 3, both using 304 stainless steel and supporting 300 lbs per caster for light-duty manual use. The K3A lacks a swivel bearing shield and lubrication fitting, reducing cost but making it less robust. Model 3 offers these features for more frequent use. Choose K3A for cost-effective washdown applications; Model 3 for added durability.
What’s the difference between swivel and rigid versions of the Stainless Steel Plate Caster Model K3A?
Swivel K3A casters feature a double ball raceway with a 1/2” stainless rivet for easy maneuvering in tight spaces. Rigid versions don’t swivel, offering straight-line stability for carts like butcher tables—install opposite push handle for control. Both use a 2-3/8” x 3-5/8” mounting plate, 3/8” axle, and are suited for light-duty washdown applications.
What is the mounting plate specification for the Stainless Steel Plate Caster Model K3A?
The K3A has a 2-3/8” x 3-5/8” mounting plate with slotted bolt holes (1-3/4” x 2-7/8” to 3”), using 5/16” bolts (not included). Don’t drill holes until receipt to ensure proper fit, ideal for autoclave carts in labs or food prep areas.
What are the overall heights for the Stainless Steel Plate Caster Model K3A with different wheel diameters?
Overall heights depend on wheel size: 3” wheel – ~4-1/4”; 4” wheel – ~5-1/4”; 5” wheel – ~6-1/4”; larger sizes up to 18” available. The 5” phenolic wheel shown has a ~6-1/4” height. Contact 800-501-3808 for precise measurements.
What construction details make the Stainless Steel Plate Caster Model K3A durable for autoclave washdowns?
The K3A is made from stamped 304 stainless steel with 1/4” thick legs, a 1/2” stainless rivet center pin, and a 3/8” axle bolt with latching nut. The open swivel bearing avoids water retention, ideal for washdowns. An optional lube axle and mirror finish enhance durability and aesthetics in corrosive settings.
Can the Stainless Steel Plate Caster Model K3A handle autoclave temperatures?
Yes, the 5” phenolic wheel (Shore D 90, -40°F to +250°F) withstands autoclave temperatures up to 250°F. The 304 stainless steel frame resists corrosion during washdowns. Avoid prolonged exposure to excessive heat or chemicals to prevent wheel moisture absorption. Consult for specific conditions.
What installation tips are there for the Stainless Steel Plate Caster Model K3A?
Mount with at least 4 bolts (5/16”, not included) on the 2-3/8” x 3-5/8” plate, ensuring rigid casters are parallel and swivels level. Don’t drill until receipt. Avoid welding that distorts the bearing or sideways dragging. Rinse stainless models post-washdown for autoclave use.
Why choose the Stainless Steel Plate Caster Model K3A for autoclave washdowns?
The SS K3A’s 304 stainless steel frame and optional stainless lube axle resist corrosion in wet, autoclave environments. Its 5” phenolic wheel is non-marking, resists flat spotting, and handles shock, making it an economical choice for light-duty carts in labs or food prep, with NSF/ROHS compliance.
What applications is the Stainless Steel Plate Caster Model K3A best for in autoclave washdowns?
The K3A with a 5” phenolic wheel is ideal for light-duty, manually moved carts in autoclave washdown settings, including:
- Animal labs for cage and equipment carts.
- Butcher tables for meat processing.
- Food processing for prep carts and ingredient bins.
- Pharmaceutical labs for sterile equipment transport.
- Hospitals for autoclaved medical supply carts.
- Cleanrooms for sensitive equipment movers.
- Kitchens for food prep and storage carts.
- Laboratories for chemical or biohazard carts.
The stainless steel construction and phenolic wheel ensure hygiene, corrosion resistance, and durability in wet, washdown conditions, perfect for light-duty autoclave applications.
What are the technical specifications for the Stainless Steel Plate Caster Model K3A?
| Wheel Diameter | Overall Height | Swivel Radius | Axle Diameter | Capacity (per Caster) | Bearing Options | Material |
| 3” | ~4-1/4” | ~2-1/2” | 3/8” | Up to 300 lbs | Roller, Precision Sealed Ball | 304 Stainless Steel, Phenolic |
| 4” | ~5-1/4” | ~3” | 3/8” | Up to 300 lbs | Roller, Precision Sealed Ball | 304 Stainless Steel, Phenolic |
| 5” | ~6-1/4” | ~3-1/2” | 3/8” | Up to 300 lbs | Roller, Precision Sealed Ball | 304 Stainless Steel, Phenolic |
Mounting plate: 2-3/8” x 3-5/8” (slotted bolt spacing 1-3/4” x 2-7/8” to 3”). Bolt size: 5/16” (not included). NSF/ROHS compliant.
What are the limitations of the phenolic wheel in the Stainless Steel Plate Caster Model K3A?
Phenolic wheels can absorb moisture over time and wear down with excessive exposure in wet washdown environments, but they remain a great economic choice for labs with frequent autoclave washdowns, offering non-marking performance and resistance to flat spotting under loads.
What spanner bushing options are available for the Stainless Steel Plate Caster Model K3A in animal lab usages?
The phenolic wheel comes with a stainless steel spanner bushing in plain bore for standard use. For animal labs, an optional nylon spanner bushing/sleeve is available to reduce noise from metal-on-metal rubbing inside the stainless leg. The nylon bushing minimizes squeaks and complaints in quiet lab settings, especially during dry conditions where stainless rubbing can be noisy. Contact 800-501-3808 for this customization.
Why does noise occur with the stainless steel spanner bushing in the Stainless Steel Plate Caster Model K3A?
Noise occurs because the stainless steel spanner bushing rubs against the inside of the stainless caster leg, creating squeaky metal-on-metal friction when dry. This is common in washdown environments like labs, but switching to a nylon spanner bushing reduces noise significantly by providing a smoother, quieter interface.
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 you’re 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 Parts
- Majority of Orders Processed and Shipped in 2 Days or Less


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September 6, 2023













