ISO CE Approval Cast Iron Casters 75mm Heavy Duty Castors With Brake System

Product Specification

75mm Red PU Iron Core Caster Wheel With Brake System For Equipment

Features Analysis

• Wheel Diameter (3 Inches / 75mm):
  This is a compact size that strikes a balance between stability and low-profile clearance. It is small enough to fit under standard industrial equipment legs but large enough to roll over minor floor debris (like cables or small bumps) without getting stuck.

• Material: Polyurethane (PU) on Iron Core:

  • Dual-Density Construction: Unlike all-plastic or all-rubber casters, this features a hard iron center with a thick bonded polyurethane tread.

  • Red Color: The red color is often a visual indicator for safety or specific compliance (e.g., ESD-safe in some contexts, or simply for easy identification in a facility).

  • Iron Core: Provides high load-bearing capacity, resistance to impact, and structural rigidity.

• Double Brake Mechanism:
  This is a total-lock system. Unlike a single brake that only locks the wheel rotation, the double brake locks both the wheel roll and the swivel head (360-degree rotation). It is typically activated by a single lever that presses a cam against both the wheel tread and the swivel raceway.

• Swivel Caster Design:
  The wheel is mounted on a top plate (typically 2.5" x 3.5" or similar) that allows 360-degree rotation, enabling the trolley to change direction instantly without needing to pivot the entire frame.

Functional Benefits

• Superior Floor Protection & Quiet Operation:
  The polyurethane tread is non-marking (unlike solid iron or steel wheels) and absorbs vibration. It will not scratch hardwood, epoxy, or tile floors, making it ideal for indoor use. The PU also reduces rolling noise significantly compared to hard plastic or metal wheels.

• High Load Capacity in a Compact Size:
  Because the core is iron (rather than plastic or nylon), this caster can support significantly heavier loads (typically 200–330 lbs per caster) than a 3-inch plastic-core wheel. This allows equipment to remain low to the ground without sacrificing strength.

• Absolute Stationary Safety:
  The double brake is the critical safety feature. By locking the swivel in addition to the wheel, the caster prevents the equipment from drifting or rotating when parked.

  • Benefit: If you are loading a heavy item onto a cart, a single brake might allow the cart to pivot (swing out). The double brake holds the cart rigidly in place, preventing accidents.

• Chemical and Wear Resistance:
  PU is resistant to oils, greases, solvents, and water. The iron core provides heat dissipation during long rolling distances, preventing the hub from warping under heavy loads.

Ideal Applications

This specific combination (3-inch, iron core, double brake) is best suited for environments requiring maneuverability, heavy weight support, and strict stationary safety in a low-height package.

A. Industrial and Warehouse Trolleys:

• Platform Trucks: Used for moving boxes, engines, or tools. The double brake ensures the truck doesn’t roll away on loading docks or sloped floors.

• Tool Cabinets: Ideal for heavy steel tool chests where the user needs the cart to stay exactly in place when opened to prevent tipping.

B. Medical and Laboratory Equipment:

• Hospital Beds and Stretchers: The double brake is a regulatory requirement in medical settings to ensure patient safety during transfers.

• Medical Carts (Crash Carts/Anesthesia Carts): The PU ensures quiet rolling (for patient comfort) and the iron core handles the weight of heavy medical devices, while the brake locks the cart securely during procedures.

C. Commercial Food Service:

• Kitchen Equipment Stands: For heavy mixers, ovens, or prep tables. The PU resists oils and fats, and the double brake keeps heavy equipment stable during vibration-heavy operation (like dough mixing).

D. Machinery and Automation:

• Portable Conveyors: The low height (3 inches) allows for easy loading/unloading of goods.

• Heavy Machinery Dollies: Used to temporarily position heavy industrial equipment or CNC machines, with the double brake ensuring the machine does not shift during use.