Heavy duty polypropylene casters.
A plastic wheel that carries like a heavy duty caster: white polypropylene, 100 to 200 mm, 300 to 480 kg per caster — immune to water, most chemicals and corrosion, at a fraction of a metal wheel's weight.

Specification
| Series | Heavy duty casters — polypropylene wheel |
|---|---|
| Wheel | Polypropylene (PP), white, 100–200 mm × 50 mm |
| Load capacity | 300–480 kg per caster by size — see the size table |
| Configurations | Swivel, rigid, swivel with brake |
| Mounting | Top plate 115 × 100 mm, hole spacing 83 × 71 mm, hole Ø 12 mm |
| Documentation | CE / RoHS documentation available on request — ask in the RFQ and the documents for this series accompany the quotation. |
| MOQ | Confirmed per order in the written quotation |
| Lead time | Confirmed per order in the written quotation |
Values marked as a class or target are the specification this model is quoted and sampled against. Final confirmed values are stated on the written quotation and verified on the production sample before bulk production.
Polypropylene is the wheel material for wet and chemical duty where the load is still serious: it does not rust, it shrugs off water, alkalis and most process chemicals, and the caster weighs noticeably less than its metal-wheeled equivalents — which matters across a fleet of trolleys and racks. This series runs the heavy build: 50 mm wide wheels on a full-size plate fork.
The trade-offs are stated plainly, as usual: PP is a hard wheel — louder than PU and less kind to delicate floors — and it is not a heat wheel. Inside its envelope (wet, chemical, corrosive, heavy) it outlasts prettier options.
Sizes in this series
| Size | Wheel Ø × width | Load per caster | Overall height | Top plate | Hole spacing | Hole Ø |
|---|---|---|---|---|---|---|
| 4 in | 100 × 50 | 300 kg | 146 mm | 115 × 100 | 83 × 71 | 12 |
| 5 in | 125 × 50 | 360 kg | 168 mm | 115 × 100 | 83 × 71 | 12 |
| 6 in | 150 × 50 | 420 kg | 195 mm | 115 × 100 | 83 × 71 | 12 |
| 8 in | 200 × 50 | 480 kg | 242 mm | 115 × 100 | 83 × 71 | 12 |
Dimensions in millimetres unless shown otherwise. Values are the series table values; the written quotation confirms the final drawing for your size class before sampling.
Configuration options
- Swivel, rigid and brake builds on the same plate standard.
- For corrosive duty with a softer tread, compare the stainless PU series.
What the sample verifies
Before bulk production, the production sample of this series is checked against the locked specification: wheel diameter and — critically — wheel width measured, tread hardness verified where the series states it, bearing type confirmed, fork and plate dimensions measured, and load performance tested per the stated convention (EN 12532 / ANSI ICWM). The approved sample becomes the reference for the shipment, and the order carries batch traceability back to it.
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About this series
Where does PP beat PU?
In water, washdown and chemical exposure, and where caster weight matters across a fleet. PU wins on noise, floor protection and rolling comfort. State the environment in the RFQ and the quotation will not sell you the wrong one.
Does the white wheel show dirt?
It shows everything — which in food and clean environments is a feature: contamination is visible at inspection instead of hidden in a dark tread.
Need this caster under your own brand?
Private label, custom packaging and carton marks are available across the range — mention it in the RFQ and the quotation will include the branding steps.