Super White 75mm Swivel Castors PP 3 Heavy Duty Casters For Kitchen Machine

Product Specification

3 Inch Super White Color without Ball Bearings Swivel Caster Wheel with Blue-white Zinc Resistant Coating For Kitchen Machine And Equipment

Feature and Functional Purpose

• The primary purpose of this caster is to provide cost-effective, hygienic, and maneuverable mobility for kitchen equipment, specifically engineered to withstand the humid and wet conditions of a foodservice environment.
  • 3-Inch Diameter: This size offers a stable footprint while providing enough height to clear floor irregularities. It is a standard size for balancing load capacity and maneuverability in commercial kitchens .
  • Super White PP (Polypropylene) Wheel: The "Super White" color typically indicates a food-grade, non-porous material. PP is chosen for its high resistance to moisture, chemicals, and corrosion, preventing bacterial growth and staining . It is also non-marking, protecting kitchen floors.
  • Blue-White Zinc Resistant Coating: This is a specific passivation treatment applied to the steel frame (the yoke and swivel assembly). "Blue-white" zinc plating offers a base level of corrosion protection, acting as a sacrificial layer that resists rust. According to industry standards, blue-white zinc plating typically withstands salt spray testing for approximately 48 hours before forming white rust and 96 hours before red rust appears . This makes it suitable for standard kitchen humidity and incidental water exposure.
  • Swivel Function: The 360-degree swivel head allows for easy steering and positioning of equipment in tight kitchen spaces without needing to lift the machinery .
  • Without Ball Bearings (Plain Bearing): This design intentionally omits loose ball bearings in the swivel raceway or wheel hub. It utilizes a simpler "plain bearing" or friction fit design. This reduces the number of moving parts that can become clogged with flour dust, grease, or food debris, which is a common failure point in standard ball-bearing casters.
• Functional Purpose: To safely and hygienically move kitchen machinery (like mixers or prep tables) into position, while the zinc coating protects the metal frame from the corrosive effects of humidity and cleaning, and the plain-bearing design ensures reliability in dusty or debris-filled environments.

Functional Benefits

The specific combination of materials and design provides distinct advantages for a kitchen setting:

1. Basic Corrosion Protection at a Value: The Blue-White Zinc coating provides a cost-effective barrier against rust. While not as robust as stainless steel or yellow zinc, it offers sufficient protection for standard kitchen environments where equipment is wiped down but not subjected to harsh chemical washdowns .
2. Hygienic and Easy to Clean: The non-porous Super White PP wheel resists absorbing food liquids, oils, and bacteria. It can be easily cleaned as part of regular kitchen sanitation protocols .
3. Floor Protection: The Super White PP material is non-marking, ensuring it will not leave dark scuff marks on light-colored or tiled commercial kitchen floors .
4. Reliability in Harsh Conditions (No Ball Bearings): By eliminating ball bearings, this caster removes a common point of failure. Bearings can seize when clogged with flour dust (common in bakeries) or food debris. The simpler plain-bearing design ensures the wheel keeps rolling even with particulate matter present.
5. Smooth Maneuvering: The swivel action allows for a zero-turn radius, making it easy to navigate equipment around tight corners or into alcoves .

Ideal Applications

Given its 3-inch size, zinc coating, and plain-bearing design, this caster is perfectly suited for medium-duty kitchen equipment in environments where dust and moisture are present but high-pressure washdowns are not the norm.

1. Standard Kitchen Machinery:
2. Mixers: Ideal for planetary mixers used in bakeries or pizzerias where flour dust is prevalent (ball bearings would jam, but plain bearings will not).
3. Prep Tables: For mobile work tables that need to be repositioned for cleaning under counters .
4. Equipment Stands: For supporting small ovens or fryers that are moved infrequently but require mobility for service access.
5. Mobile Storage and Transport:
6. Ingredient Carts: For carts transporting bags of flour or sugar, where dust ingress is a concern.
7. Shelving Units: For light to medium-duty metro-style shelving that needs to be moved for floor cleaning .
8. Janitorial Carts: Suitable for housekeeping carts operating in back-of-house areas.
9. Foodservice Fixtures:
10. Buffet Lines: For mobile buffet stations or salad bars that are repositioned daily.
11. Undercounter Appliances: For refrigerators or freezers that need to be rolled out for condenser cleaning, where the zinc coating protects against floor moisture .