A practical ten-type caster shortlist includes rigid, swivel, twin, plate-mounted, stem-mounted, polyurethane, rubber, nylon, steel, and pneumatic wheels. Global buyers should compare each type through a compliance matrix, not appearance alone.
EN 12527 provides test methods for castors and wheels, including load, movement, and durability checks. It helps verify whether laboratory performance matches the purchase specification.
ASTM requirements depend on the product and market. Relevant ASTM methods may assess material hardness, corrosion resistance, friction, impact, or load behavior. A warehouse cart may need polyurethane wheels, low rolling resistance, and documented load testing. Medical equipment often needs quiet rubber wheels, smooth steering, and cleanable surfaces. Outdoor platform trucks may require corrosion-resistant hardware and pneumatic or resilient wheels. Cleanroom buyers should request particle-control evidence, not assume nylon is automatically suitable. That assumption can fail.
Tips: Ask for the test method, sample condition, applied load, temperature, and failure limit. Check whether the report covers the complete caster assembly. EN 12527 results cannot always replace an ASTM-based customer specification. A buyer should also confirm brake performance, floor compatibility, and installation dimensions. Small gaps matter. Reflect on real site conditions, because polished factory floors rarely represent ramps, debris, moisture, or uneven concrete. A careful matrix records standard, test result, use case, and remaining uncertainty before approval.