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| Brand Name: | Luma |
| Model Number: | / |
| MOQ: | 4 |
| Price: | / |
| Payment Terms: | L/C,wechat,alipay |
| Supply Ability: | 100000 |
Heavy Duty 6 Inch Rigid Caster – 304 Stainless Steel Fixed Caster with PU on Aluminum Core Wheel | 400kg Load Capacity for Seafood, Marine & Industrial Use
Engineered for straight-line stability in the harshest environments. This Rigid (Fixed) Caster features a 304 stainless steel yoke and a 6-inch PU-on-aluminum-core wheel, supporting up to 400kg per caster. Designed specifically for seafood processing plants, dockyards, cold storage, and marine operations where corrosion resistance and directional control are non-negotiable.
Unlike swivel casters that rotate 360°, a Rigid caster is fixed in one direction. This design offers critical advantages in seafood and marine environments:
Maximum Straight-Line Stability: When moving heavy loads of seafood crates, frozen goods, or industrial equipment across long distances on docks or warehouse aisles, rigid casters prevent unwanted sideways drift. This keeps trolleys tracking true and reduces operator fatigue.
Higher Structural Integrity: With fewer moving parts (no swivel raceway), rigid casters are inherently stronger and less prone to mechanical failure under extreme side loads—common when pushing heavy carts on uneven concrete or metal deck surfaces.
Simplified Maintenance: No swivel bearing means one less component to corrode or seize in salt-heavy air, making rigid casters the most reliable choice for fixed-path transport systems.
Pro Tip: For optimal maneuverability, we recommend a 2+2 configuration — two rigid casters at the rear and two swivel casters at the front — giving you both straight-line efficiency and turning capability.
In seafood processing plants, coastal docks, and saltwater environments, standard carbon steel casters will rust within weeks—sometimes days. Here's why 304 stainless steel is the only professional choice:
|
Factor |
Ordinary Carbon Steel |
304 Stainless Steel (Our Standard) |
|---|---|---|
|
Salt Spray Resistance |
❌ Rusts rapidly; protective coating flakes off |
✅ Chromium oxide layer self-heals, blocking corrosion |
|
Humidity & Washdown |
❌ Traps moisture; bolts seize; brackets crack |
✅ Withstands daily high-pressure washdowns with chlorinated water |
|
Chemical Exposure |
❌ Degrades from seafood cleaning agents & acids |
✅ Resists mild acids, alkalis, and sanitizing chemicals |
|
Service Life |
3–12 months (in marine settings) |
5+ years with basic maintenance |
|
Total Cost of Ownership |
High (frequent replacements, downtime) |
Low (set-and-forget reliability) |
The Science Behind 304: 304 stainless steel contains 18% chromium and 8% nickel, forming a passive chromium-oxide film on the surface. In seafood facilities—where salt-laden air, ice melt, fish oils, and acidic wash water are constant—this passive layer continuously regenerates, preventing the deep pitting and structural weakening that destroys ordinary steel.
Bottom line: In a seafood warehouse or dock operation, choosing anything less than 304 stainless steel is a false economy. The cost of a single day of downtime from a failed caster far exceeds the price difference.
Polyurethane Tread: High abrasion resistance, non-marking on concrete floors, and excellent shock absorption when rolling over dock plates or uneven surfaces. Can be formulated for custom temperature ranges—from sub-zero cold storage (-40°C) to high-heat industrial zones.
Aluminum Core: Lightweight yet strong. Unlike cast iron cores that rust and add unnecessary weight, aluminum cores resist corrosion and reduce the overall caster mass, making trolleys easier to push even at max load.
Temperature Tolerance: Standard PU formula covers -20°C to +80°C. Custom compounds available for freezer (-40°C) or high-temp (+120°C) applications—just let us know your operating range.
|
Industry / Use Case |
Why This Caster Works |
|---|---|
|
Seafood Processing & Cold Storage |
304 SS resists salt & fish oils; PU customizable for freezer temps |
|
Dock & Port Handling Equipment |
Rigid design tracks straight on metal decks and ramps |
|
Coastal Construction & Marine Repair |
Salt spray won't seize the bracket; aluminum core won't rust |
|
Laboratory & Medical Instrument Carts |
Non-corrosive, quiet rolling, directional stability for precision equipment |
|
Heavy Industrial Trolleys on Concrete |
400kg capacity + rigid stability = safe transport of dense loads |
|
Attribute |
Specification |
|---|---|
|
Model |
C01-R-1PU-650-RG (Rigid/Fixed) |
|
Wheel Diameter |
6 inches (150 mm) |
|
Wheel Width |
50 mm |
|
Overall Height |
195 mm |
|
Loading Capacity |
400 kg / caster |
|
Bracket Type |
Rigid (Fixed), 304 Stainless Steel |
|
Bracket Thickness |
5.5 mm |
|
Top Plate Size |
115 × 101 mm |
|
Bolt Hole Spacing |
84 × 71 mm |
|
Bolt Hole Diameter |
11 mm |
|
Wheel Material |
PU (Polyurethane) on Aluminum Core |
|
Bearing |
Precision Ball Bearing (customizable) |
Temperature Range: Standard -20°C ~ +80°C; custom PU compounds for -40°C (freezer) or up to +120°C
Wheel Hardness: Adjustable Shore A rating for floor protection vs. rollability trade-off
Bracket Upgrade: 316 Stainless Steel available for extreme chloride environments
Mounting Options: Top plate standard; stem or bolt-hole configurations on request
Brake Options: Side brake available on swivel version; rigid version can be paired with brake-equipped swivels in mixed sets
Stop replacing rusted casters every season. Equip your seafood operation, dock equipment, or marine trolleys with casters built to last.
📩 Contact us now for a quote, bulk pricing, or to discuss your custom specifications. Ships worldwide.
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