Dual wheel casters split the load across two parallel wheels — which is how a caster reaches 40,000 lb without an enormous wheel diameter raising the deck out of reach. Two contact patches also brace against the cornering twist that jams a single wide wheel. This hub spans the dual-wheel range up to the 40,000 lb ceiling.
Hamilton dual-wheel casters reach up to 40,000 lb per caster by splitting the load across twin wheels in a single footprint. Twin UltraGlide polyurethane, cast iron, and Nylast options balance capacity, floor protection, and overall height.
| Series / Config | Size | Capacity | Wheel | Best For |
|---|---|---|---|---|
| Dual cast iron | 8"–12" | up to 40,000 lb | Twin cast iron | Structural moves, hard floors, max capacity |
| Dual UltraGlide poly | 8"–12" | up to 30,000 lb | Twin UltraGlide polyurethane on steel core | Towline carts, floor protection at high load |
| Dual Nylast | 6"–10" | up to 24,000 lb | Twin Nylast | Low-deck extreme capacity, narrow swivel |
| Dual cast iron, compact | 6"–8" | up to 20,000 lb | Twin cast iron | Tight footprint, heavy fixed loads |
Representative Hamilton configurations by capacity tier. Exact per-size load ratings, wheel diameters, and mounting are confirmed on your quote. Call 844-439-4335.
Total the gross load and divide by the load-bearing casters, then add 25% margin over the worst-case caster. Twin wheels share the load across two contact patches, so a dual-wheel caster carries more in the same plate size than a single. Still size to the corner that takes the most weight on an uneven floor, not the average.
Twin cast iron gives the full 40,000 lb on hard floors and tolerates debris. Twin UltraGlide polyurethane protects finished floors and lowers push force at high load. Nylast runs lighter and lower for low-deck rigs where overall height is the constraint. Pick cast iron for max capacity, poly for floor protection, Nylast for clearance.
Top plate is standard and spreads the high load across the deck. Confirm the plate bolt pattern and deck thickness carry the rating and use Grade 8 hardware. Dual-wheel construction keeps overall height lower than a single wheel of equal capacity, which is the main reason to specify it on low-deck towline carts.
Foundry, steel mill, and defense-yard floors bring heat, chips, and shock. Twin cast iron handles debris and heat better than polyurethane. Where the floor must stay unmarked, use twin UltraGlide poly and keep it away from radiant heat. Verify the wheel rating against floor temperature in heat-adjacent zones.
It is a caster with two wheels mounted side by side on one axle in a single swivel, splitting the load across two contact patches. That lets it reach up to 40,000 lb per caster in a lower overall height than a single wheel of the same rating. Hamilton builds them in twin cast iron, twin UltraGlide polyurethane, and twin Nylast.
Up to 40,000 lb per caster on the twin cast iron configuration. Twin polyurethane configurations rate lower, near 30,000 lb, because the tread limits the load. Size each caster to the worst-case corner load with 25% margin.
Twin UltraGlide polyurethane on a steel core, twin cast iron, and twin Nylast. Cast iron carries the most and tolerates debris. Polyurethane protects floors and lowers push force. Nylast runs lighter and lower for low-deck applications.
Low-deck extreme-capacity rigs, towline carts, and structural moves are the core applications. The series suits foundry, steel mill, and defense-yard floors where the load is high and overall height must stay low. Dual wheels are chosen when an equal-capacity single wheel would sit too tall.
Yes. Hamilton has built casters in Hamilton, Ohio since 1907. Dual-wheel casters are manufactured domestically, which keeps custom plate patterns and high-capacity configurations available and supports defense supply-chain requirements.
Send the worst-case load per caster, floor condition, overall height limit, and mount plate requirement. We match those to the correct twin-wheel material and capacity tier and confirm the Hamilton part. Call 844-439-4335 or send your existing caster spec for a direct cross-reference.
Part of the full Hamilton Casters range. Compare related Hamilton series:
Spec guide: Best Casters for Heavy Equipment →
