4 Inch Heavy Duty Caster Wheel 350kg Iron Core Pu Industrial Caster Industrial Trolley Wheel

Iron Core Polyurethane (PU) · Shore 95A · Galvanized 5.5 mm Bracket · No Spring (Rigid)

1. Product Overview

The K01 4" (100 mm / 4 inch) is a heavy-duty industrial caster built around an iron-core polyurethane (PU) wheel in Shore 95A. With a load capacity of 350 kg per caster (1400 kg on a standard 4-caster system), it is the lightest and most compact in the K01 range — ideal for equipment where floor space and manoeuvrability matter more than extreme load capacity. The 50 mm wide tread, 5.5 mm galvanized steel bracket and precision ball bearing deliver stable, maintenance-free rolling for everyday heavy material handling.

2. Technical Specifications

3. Features & Advantages

• Iron Core + PU Tread: the steel core carries the load while the polyurethane tread rolls smoothly, resists wear and protects the floor.
• Shore 95A Polyurethane: high hardness for excellent load support and abrasion resistance, with good oil- and chemical-resistance.
• 5.5 mm Galvanized Bracket: thick, cold-pressed steel bracket with zinc plating for strength and corrosion resistance in demanding environments.
• Precision Ball Bearing: low-friction rolling for easy push/pull and long service life under continuous use.
• 50 mm Wide Tread: wider contact patch than standard 40 mm wheels for better stability and reduced ground pressure.
• Rigid, No-Spring Design: no moving suspension parts — simple, rugged and reliable for static or slow-moving loads.

4. Why the Iron Core Wheel Matters

The iron (steel) core is the structural backbone of the wheel. It supports the heavy load without deforming, transfers weight evenly to the bearings and bracket, and keeps the wheel running true under continuous rolling.

Important Applications & Load Limits

• Best for: steel plants, foundries, mould & die shops, transformer/substation handling, heavy machinery bases and other high-load, low-speed environments.
• Not recommended for: extremely wet, marine or chemical-washdown environments (choose stainless/anti-corrosion option); shock-sensitive precision loads requiring spring suspension (choose our A04 / A05 dual-spring series); delicate polished floors where a softer or aluminium-core wheel is preferred.

This caster is a rigid, non-spring type. It is designed for stable support and straight rolling — if your route involves expansion joints, uneven floors or frequent impact, consider our shock-absorbing spring-suspension models.

5. Application Scenarios — Products & Environments (4" (100 mm / 4 inch))

The K01 4" (100 mm / 4 inch) is purpose-built for the following uses. Specific products and environments are listed for SEO coverage:

Warehousing & Logistics — Light Duty

hand trolleys, platform dollies, roll containers, picking carts, logistics roll cages, warehouse picking trolleys, express-delivery sortation trolleys.

Workshops & Assembly Lines

workbenches, tool chests, mobile workstations, assembly-line trolleys, maintenance carts, tool cabinets, welding-positioner bases.

Furniture & Commercial Equipment

display racks, shelving units, office furniture, movable partitions, exhibition stands, hotel luggage carts, restaurant service tables.

Electronics & Laboratories

electronic assembly line trolleys, laboratory equipment carts, instrument dollies, cleanroom handling trolleys, PCB assembly transport.

Hospitality & Healthcare

hospital linen carts, food-service trolleys, medical equipment stands, catering buffet tables, hotel housekeeping carts.

6. Series Common Parameters

7. Custom Orders & Factory Strength

We welcome custom orders — different wheel materials (PU / rubber / phenolic / nylon), different bracket thicknesses (4 mm / 5 mm / 5.5 mm / 8 mm and beyond), combined with various top-plate and mounting options to match your exact requirements.

• Low MOQ — just 4 pieces per order.
• Free logo printing on bracket or top plate.
• Free sample available for testing before bulk order.
• Test report provided (load, bearing, hardness, dimension).
• 10+ years of experience as a professional heavy-duty industrial caster manufacturer.
• Trusted cooperation brands: BYD, Chery, XPeng, and SAIC Volkswagen.

8. Get a Quote

Contact us today for the K01 4" (100 mm / 4 inch) caster. Tell us your load, wheel material, bracket thickness and mounting preference — we will engineer the right combination for you.

Appendix — SEO Keywords (4" (100 mm / 4 inch))

A. SEO Meta (for this size)

• K01 4 Inch Heavy Duty Caster Wheel 350kg - Iron Core PU, Galvanized Bracket | Industrial Caster Manufacturer
• k01-4-inch-100mm-350kg-iron-core-pu-caster
• Description: K01 4" (100mm) iron core PU caster, 350kg per wheel, Shore 95A, 5.5mm galvanized bracket. Ideal for workbenches, tool chests, warehouse trolleys, assembly lines & hospital linen carts. MOQ 4 pcs, free logo, free samples, test reports. 10+ years factory, supplier to BYD, Chery, XPeng & SAIC Volkswagen.

B. Core Product Keywords

heavy duty caster wheel, industrial caster wheel, iron core PU caster, polyurethane caster wheel, K01 series caster, galvanized bracket caster, Shore 95A polyurethane caster, rigid caster no spring, caster manufacturer China, OEM caster, custom caster wheel, free sample caster, MOQ 4 caster.

C. Size-Specific Long-Tail Keywords

4 inch caster wheel 350kg, 100mm polyurethane caster, 4" iron core PU caster, light duty industrial caster, workbench caster wheel, tool chest caster, warehouse hand trolley caster, assembly line caster, display rack caster, hospital linen cart caster, laboratory equipment trolley wheel.

D. Application Keywords

workbench caster, tool chest caster, industrial trolley wheel, material handling caster, warehouse cart caster, assembly line caster, mold cart caster, foundry caster, transformer dolly caster, steel coil transfer caster, shipbuilding caster, wind energy caster, heavy machinery caster, food service cart caster.

E. Sourcing & Factory Keywords

caster manufacturer China, caster factory, OEM caster, ODM caster, custom caster wheel, caster with logo printing, free sample caster, MOQ 4 caster, caster test report, BYD, Chery, XPeng, and SAIC Volkswagen caster supplier, BYD caster supplier, Chery caster supplier, XPeng caster supplier, SAIC Volkswagen caster supplier.

F. Hashtags

 #HeavyDutyCaster #IronCorePUCaster #PolyurethaneCaster #IndustrialCaster #Shore95A #GalvanizedBracket #6203Bearing #6204Bearing #WorkbenchCaster #MoldCartCaster #TransformerDolly #FoundryCaster #ShipbuildingCaster #CasterManufacturer #CasterFactory #OEMCaster #CustomCaster #FreeSample #MOQ4 #TestReport #MadeInChina #BYD Caster #Chery Caster #XPeng Caster #SAICVolkswagen Caster

Call to Action