Stainless steel (304 grade) casters support up to 3,200 lbs per caster and feature full stainless construction for corrosion-resistant operation in food processing, pharmaceuticals, washdown environments, and coastal applications. CasterHQ stocks stainless casters with 304 SS wheels, plates, and swivel yokes from 3" to 8" — available with lock and brake options rated for NSF and USDA food service compliance. Most ship same day from our network of over $100 million in U.S. warehouse inventory.
304 stainless steel resists corrosion from moisture, chlorine, acids, and alkaline sanitizers used in food processing and pharmaceutical manufacturing. Standard steel casters rust in wet environments, requiring frequent replacement. Stainless 304 casters maintain structural integrity through thousands of wash cycles and high-temperature sterilization. Food-grade stainless casters are NSF H1 and USDA compliant, meeting hygiene standards for equipment that contacts food directly. CasterHQ stocks stainless casters specifically designed for compliance with food safety regulations.
304 stainless is the industry standard for food and pharmaceutical applications because it balances corrosion resistance, cost, and machinability. 316 stainless (higher molybdenum content) resists pitting in saltwater environments better but costs 20-30% more. Passivation is the critical process that removes free iron from the surface, preventing rust and staining. CasterHQ specifies passivated 304 stainless for all food-service casters, exceeding basic stainless specifications to guarantee performance.
| Specification | Value |
|---|---|
| Wheel Diameter | 3" – 8" |
| Load Capacity | Up to 3,200 lbs/caster |
| Material Grade | 304 Stainless Steel (Passivated) |
| Wheel Options | Polyurethane, Nylon, Phenolic (non-stainless wheel/SS body) |
| Mount Types | Top Plate, Threaded Stem |
| Plate Sizes | 2-5/8"x3-5/8" & 3-1/2"x4-1/2" |
| Bearing Type | Ball (stainless or sealed) |
| Brake Options | Sanitary Total Lock, Side Lock, Foot-Operated |
| Feature | 304 Stainless | 316 Stainless |
|---|---|---|
| Cost | ★ $$ (baseline) | $$$+ (20-30% premium) |
| Food Service Approval | ★ NSF H1, USDA compliant | NSF H1, USDA compliant |
| Corrosion Resistance | ★ Excellent (moisture, chemicals) | Superior (saltwater, pitting) |
| Best Environment | ★ Indoor kitchens, pharma, cleanrooms | Coastal, saltwater, marine |
| Machinability | ★ Easier to machine | More difficult to work with |
| Maintenance | ★ Passivation sufficient | Requires periodic passivation |
These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.
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