Polyurethane is the default choice when you need load capacity close to nylon but must protect painted concrete or epoxy floors. RollMaster casts PU wheels in-house on grey iron and steel cores.
PU wheels offer low rolling resistance, good grip, quiet running and resistance to oils and many chemicals — the standard wheel for AGV/AMR platforms and indoor material handling.
Spécifications
- Shore hardness 92A–95A standard, other compounds on request
- Injected and cast PU production lines in-house
- Non-marking grey and red compounds available
- Temperature range typically -20 °C to +80 °C
Finitions
Zinc-plated or stainless brackets
| Bracket finish | What it does | Specify it when |
|---|---|---|
| Zinc plating (blue/white) | Baseline corrosion protection | Standard dry indoor use |
| Chrome plating | Hard, decorative, easy to clean | Visible / cleanroom-adjacent equipment |
| Powder coating | Custom color, good corrosion resistance | Brand colors, outdoor-adjacent use |
| Stainless steel 304 | No plating to fail | Washdown, food, medical |
| Stainless steel 316 | Resists chlorides | Salt, brine, marine air, harsh cleaning chemicals |
Essais
PU-to-core adhesion and hardness checked per batch
| Selection factor | Rule of thumb | Effect on performance |
|---|---|---|
| Load sizing | Total load ÷ 3 (not ÷ 4) | On uneven floors only three wheels carry the cart |
| Wheel diameter | Bigger rolls easier | Larger wheels cut push force and bridge gaps |
| Tread hardness | Softer = quieter, harder = easier rolling | Pick the softest tread that carries the load |
| Bearing choice | Precision ball for manual pushing, roller for heavy loads | Bearings dominate rolling resistance at high load |
| Swivel vs rigid | 2 swivel + 2 rigid is the standard cart setup | All-swivel carts wander; all-rigid carts cannot steer |
| Floor condition | Rough floors need bigger wheels and softer treads | Small hard wheels on bad floors destroy both |
Produits associés
Capability commitments on this page are owner-confirmed (2026-09-29).