Cleanroom Equipment Spare Parts

Cleanroom Caster Wheel

A stainless steel swivel caster with a non-marking conductive TPU wheel, four-hole top plate and accessible side brake for mobile cleanroom equipment.

Non-Marking Conductive TPU Tread
Stainless Steel Swivel Fork
Four-Hole Top-Plate Mount
Single-Side Foot Brake

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Product Introduction

This cleanroom caster wheel combines a deep blue-gray conductive TPU tread with a corrosion-resistant stainless steel swivel fork, top plate and axle hardware. The resilient tread rolls quietly and limits visible floor marking while the dark hub and sealed bearing interface keep the assembly compact. A square plate with four mounting holes spreads attachment loads into the equipment base, and the single side pedal provides an accessible wheel-braking interface. The swivel race is positioned directly beneath the plate to maintain maneuverability without an offset stem. Wheel diameter, load capacity, electrical resistance, plate pattern and brake function are selected for the actual cabinet, trolley or mobile process equipment rather than inferred from wheel color alone.

Key Features

The conductive non-marking TPU tread combines resilient floor contact with a wear-resistant rolling surface suited to smooth controlled-area floors.

Satin stainless steel fork, top plate and axle components provide a cleanable exterior with fewer painted surfaces exposed to routine wipe-downs.

The square top plate uses four separated corner holes to distribute mounting force and resist twisting at the equipment base.

One side-mounted foot pedal places the brake control beside the wheel while retaining clear access to the axle and swivel bearing interfaces.

Customer Product Concerns

A caster that rolls smoothly in a workshop can still mark a controlled-area floor, accumulate charge, corrode during cleaning or loosen under a mismatched mounting pattern.

A hard or unsuitable tread can leave visible tracks, transmit vibration to instruments or damage resin flooring at small contact patches.A resilient non-marking TPU tread is selected with wheel diameter, hardness and load per caster matched to the floor finish and equipment mass.

Electrical charge can remain on mobile equipment when the wheel compound and floor path do not provide the intended dissipation route.Conductive tread formulation, hub-to-axle continuity and the installed floor system are evaluated together, with electrical resistance verified for the required application.

Painted or carbon-steel fork components may develop surface damage after repeated detergent wipe-downs or humid service.Stainless steel external hardware and an accessible open fork geometry reduce coating dependence and simplify visual cleaning checks.

An incorrect top-plate pattern, mounting height or brake sweep can interfere with the equipment base or produce unstable tracking.Plate size, four-hole centers, overall height, swivel radius, wheel width and pedal clearance are matched to the existing mounting envelope before installation.

Typical Applications

Mobile cleanroom workstations and instrument cartsStainless process trolleys and transfer racksPortable laminar-flow and inspection equipmentControlled-area cabinets and utility skids

Technical Parameters

The following conservative construction ranges describe medium-duty swivel casters used on cleanroom carts and mobile equipment; wheel compound, load, conductivity and fitting dimensions are selected for the installed duty.

Core Material	Conductive non-marking thermoplastic polyurethane tread on a conductive polymer hub with Type 304 stainless steel fork, top plate and axle hardware
Panel Thickness	4.0-6.0 mm nominal stainless steel top mounting plate thickness
Effective Width	32-50 mm nominal wheel tread width
Maximum Length	Up to 200 mm overall caster mounting height
Steel Facing Thickness	2.0-4.0 mm nominal stainless steel fork section thickness
Core Density	Approximately 1060-1120 kg/m³ for representative TPU tread compounds
Thermal Conductivity	Approximately 0.20-0.25 W/(m·K) for representative TPU at 20 °C
Surface Finish	Satin neutral-silver stainless steel, deep blue-gray non-marking conductive TPU tread and dark sealed hub and bearing interfaces
Joint Type	Four-hole square top-plate swivel mounting with bearing race, single wheel axle and one side-mounted foot brake
Customization	Available based on the intended application and operating environment.

Available Options

75-150 mm nominal wheel diameterWheel brake or total-lock brake configurationAlternative top-plate size and hole centersConductive or low-marking tread formulation

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