| Brand Name: | Luma |
| Model Number: | / |
| MOQ: | 4 |
| Price: | / |
| Payment Terms: | L/C,wechat,alipay |
| Supply Ability: | 100000 |
K01 Series — 5" (125 mm / 5 inch) Heavy Duty Caster
Iron Core Polyurethane (PU) · Shore 95A · Galvanized 5.5 mm Bracket · No Spring (Rigid)
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1. Product Overview
The K01 5" (125 mm / 5 inch) is a heavy-duty industrial caster built around an iron-core polyurethane (PU) wheel in Shore 95A. With a load capacity of 400 kg per caster (1600 kg on a standard 4-caster system), it is the the balanced all-rounder — enough height and capacity for daily industrial transport without the footprint of the larger sizes. 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
|
Specification |
Value |
|
Product Name |
K01 Heavy Duty Caster |
|
Model (example) |
K01-A-HU-550 |
|
Wheel Diameter |
125 mm (5 inch / 125-5) |
|
Tread Width |
50 mm |
|
Wheel Material / Hardness |
Iron Core Polyurethane (PU), Shore 95A |
|
Load Capacity (per caster) |
400 kg |
|
System Load (4 casters) |
1600 kg |
|
Bearing |
6203 ball bearing |
|
Installation Height |
169 mm |
|
Hole Spacing |
82 × 72 mm |
|
Hole Diameter |
13 mm |
|
Top Plate Size |
115 × 100 mm |
|
Plate / Bracket Thickness |
5.5 mm |
|
Bracket Finish |
Galvanized (anti-rust) |
|
Suspension |
No spring — rigid, fixed-axle construction |
|
Mounting Options |
K01-S-HU-550 (Fixed / Rigid) | K01-S-HU-550 (Swivel / Swivel Lock) | K01-S-HU-550 (Brake / Total Lock) |
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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.
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5. Application Scenarios — Products & Environments (5" (125 mm / 5 inch))
The K01 5" (125 mm / 5 inch) is purpose-built for the following uses. Specific products and environments are listed for SEO coverage:
Logistics & Retail
roll containers, shopping trolleys, supermarket cage trolleys, retail stocking carts, distribution centre dollies, pallet shuttle carts.
Food & Beverage
food-service carts, stainless-steel kitchen equipment stands, beverage-delivery trolleys, catering buffet tables, bakery proofing racks.
Light Industrial Machinery
packaging machinery bases, conveyor support trolleys, printing press dollies, small injection-mould machine bases, bottling-line equipment.
Commercial & Office
office furniture, movable partitions, filing cabinets, commercial display units, showroom pedestals.
Installation & Service
HVAC cabinet installation dollies, electrical cabinet movers, air-conditioner service carts, elevator-installation trolleys.
6. Series Common Parameters
|
Specification |
Value |
|
Wheel Material |
Iron Core Polyurethane (PU), Shore 95A |
|
Tread Width |
50 mm |
|
Surface Treatment |
Galvanized bracket & top plate (anti-rust) |
|
Bracket / Plate Thickness |
5.5 mm |
|
Suspension |
No spring — rigid, fixed-axle construction |
|
Brake Options |
Available in Fixed / Swivel / Brake (total lock) |
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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 5" (125 mm / 5 inch) caster. Tell us your load, wheel material, bracket thickness and mounting preference — we will engineer the right combination for you.
Appendix — SEO Keywords (5" (125 mm / 5 inch))
A. SEO Meta (for this size)
· Title: K01 5 Inch Industrial Caster Wheel 400kg - Polyurethane Iron Core, 6203 Bearing | Caster Factory
· URL slug: /products/k01-5-inch-125mm-400kg-pu-caster
· Description: K01 5" (125mm) polyurethane iron core caster, 400kg per wheel, Shore 95A, 5.5mm galvanized bracket. Perfect for roll containers, food service carts, packaging machines, HVAC & retail stocking trolleys. 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
5 inch heavy duty caster 400kg, 125mm iron core PU caster, 5" polyurethane caster wheel, logistics roll container caster, food service cart caster, packaging machine caster, HVAC installation dolly caster, retail stocking trolley wheel, conveyor support caster, Shore 95A 125mm caster.
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
English: #HeavyDutyCaster #IronCorePUCaster #PolyurethaneCaster #IndustrialCaster #Shore95A #GalvanizedBracket #6203Bearing #6204Bearing #WorkbenchCaster #MoldCartCaster #TransformerDolly #FoundryCaster #ShipbuildingCaster #CasterManufacturer #CasterFactory #OEMCaster #CustomCaster #FreeSample #MOQ4 #TestReport #MadeInChina #BYDCaster #Cheryv #XPengCaster #SAICVolkswagenCaster
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