4 inch TPR medical caster.
A quiet, non-marking TPR swivel caster for medical and institutional equipment. This is a secondary CASTOVELLA line: it is quoted per exact specification from live factory pricing, because institutional buyers deserve a number built on their fitting — not a catalogue average.
Specification
| Wheel diameter | 4 in (100 mm) |
|---|---|
| Wheel | TPR (thermoplastic rubber) — quiet, non-marking, institutional standard |
| Configuration | Swivel; total-lock brake variants specified per order |
| Stem / mounting | Matched to your equipment's fitting standard — stated on the quotation |
| Load capacity | Light institutional class — confirmed per exact specification on the quotation |
| Pricing basis | Quoted from live factory pricing against your locked specification (secondary line — no standing programme price) |
| 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.
Medical and institutional casters are specified by their environment: silent running on hard floors, non-marking treads, total-lock brakes that hold on ramps, sealed bearings that tolerate cleaning regimes, and stem fittings that must match the equipment manufacturer's socket exactly. TPR (thermoplastic rubber) is the standard tread for this duty — soft-running, floor-kind and compatible with routine cleaning.
Why this line works differently: institutional specifications vary more than any other caster category — fitting standards, brake formats and bearing sealing differ by equipment maker. Rather than publish a standing configuration with invented precision, we take your exact specification (or the caster you are replacing, measured per our measurement guide) and quote it from live factory pricing. The page exists so the inquiry starts in the right place; the quotation is where the specification gets locked.
One classification note for US importers: many 4 inch medical casters have wheel widths under 30 mm, which places them inside the HTS 8302.20 definition despite the diameter exceeding 75 mm. The China duty stack is the same either way, but the paperwork is cleaner — see the tariff guide.
Configuration options
- Total-lock brake and directional-lock variants per equipment standard.
- Sealed bearing arrangements for washdown-adjacent cleaning regimes.
- Replacement matching: send the existing caster's measurements or a sample.
What the sample verifies
Before bulk production, the production sample of this model is checked against the locked specification: wheel diameter and — critically — wheel width measured, tread hardness verified, bearing type confirmed, fork and plate thickness 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.
Request pricing for this specification
About this model
Why is this line quoted differently from the others?
Institutional fittings and brake formats vary by equipment maker, so a standing configuration would be a guess. Quoting from live factory pricing against your exact specification is slower by a step and right the first time.
Can you match the caster on our existing equipment?
Yes — that is the most common inquiry on this line. Send stem dimensions, wheel diameter and width, brake type and a photo, or send a sample; the quotation locks the match.
Are TPR wheels compatible with hospital cleaning chemicals?
Routine institutional cleaning, yes. Aggressive disinfectant regimes should be named in the RFQ so compound suitability is confirmed before quoting.
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.