5 Inch Extra Heavy Duty Iron Core PU Caster – 350kg Load Capacity Thicken Braceket Woodworking Machinery

The 5" (125 × 50 mm) iron core PU caster is the most versatile and widely specified size in the K02 heavy-duty series. It strikes the perfect balance between low-profile stability and obstacle clearance, making it the default choice for mid-weight industrial machines that need occasional repositioning for maintenance, cleaning or production line changes.

With a chemical-bonded orange polyurethane tread (Shore A 90–95) over a solid cast iron core, housed in a 5 mm black painted steel top-plate fork with a 6202 deep groove ball bearing, this wheel delivers 350 kg of single-wheel load capacity — a 4-wheel system handles approximately 1,400 kg.

• Wheel tread: Orange Polyurethane (PU) on Cast Iron Core
• PU hardness: Shore A 90–95 (non-marking, wear resistant, shock absorbing)
• Temperature range: -20 °C to +80 °C (short peak +100 °C)
• Bearing: 6202 ZZ precision ball bearing (sealed option available)
• Fork / bracket: Heavy duty steel plate, black powder-coated / painted
• Wheel width: 50 mm
• Top plate: 140 × 110 mm
• Bolt hole spacing: 84 × 72 mm
• Bolt hole diameter: 13 mm
• Types: Rigid (Fixed), Swivel, Swivel with brake, Central hole, Central hole with brake
• Floor fit: Concrete, painted steel, epoxy, PVC tile (indoor dry only)

The 5 inch 350kg caster is the industrial "sweet spot" — used on mid-weight standalone machines across metal fabrication, woodworking, electronics, printing and medical equipment sectors.

• Fiber laser cutting machine (1325, 1390, 1530 entry/mid range)
• CO₂ laser engraving machine frame
• Laser marking machine base
• Plasma cutter stand

• Sliding table saw (panel saw)
• Thickness planer, jointer
• Band saw stand, scroll saw base
• Dust collector mobile base
• Wood lathe stand

• Electrical control cabinet (MCC panel, VFD enclosure)
• PLC control panel on wheels
• Transformer mobile base
• Battery bank trolley

• Welding table, fitters bench
• Welding positioner base
• Grinding station trolley
• Assembly fixture cart

• Mold storage rack on wheels
• Injection molding auxiliary hopper cart
• Extruder auxiliary stand

• Printing machine stand (offset, flexo, digital)
• Die-cutting machine dolly
• Laminating machine base
• Carton sealing machine trolley

• Portable X-ray cart
• Ultrasound trolley
• ECG machine mobile stand
• IV pole heavy duty base

Rolls over cables, wood chips, metal shavings and floor joints better than 4", while keeping machine height ergonomic for operators. The 350 kg single-wheel rating gives a safe margin for machines weighing 800–1,200 kg on a 4-wheel configuration. PU at Shore A 90 absorbs vibration from laser coolers, spindle motors and compressor pumps.

• Iron core PU wheel – zero tire deflection under 350 kg load
• Orange PU tread Shore A 90–95 – non-marking, oil & grease resistant
• 6202 ball bearing – smooth roll, low push force
• Black heavy steel yoke – economical, 5 mm thick
• Swivel / rigid / brake / central hole – full mounting options
• Floor protective on concrete, epoxy, tile
• OEM customization: plate size, brake type, bearing seal, PU durometer

This 5 inch heavy duty iron core PU caster is designed for mid-weight industrial equipment mobility inside factories and workshops. It is widely used on fiber laser cutting machines, CO2 laser engravers, sliding table saws, thickness planers, VFD control cabinets, PLC panels, welding tables, fitters benches, mold storage racks, injection molding auxiliary hopper carts, printing machine stands, die-cutting machines and portable medical imaging trolleys. The cast iron core carries the weight; the polyurethane tread cushions vibration from laser resonators, spindle motors and vacuum pumps while leaving no black mark on the floor. Working temperature -20 °C to +80 °C covers cold workshop mornings and summer metal shops. For food grade, washdown, seawater or outdoor use, switch to stainless steel caster — this model is strictly for dry industrial duty.

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