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High-Heat Casters — Oven, Kiln, Foundry

High-heat casters survive the temperatures that destroy ordinary wheels — oven and kiln lines, heat-treat and powder-coat operations, foundry and forge environments. Phenolic, glass-filled nylon, cast iron, and steel wheels with high-temp bearing grease and heat-stable rigging, rated up to 9,000 lb per caster.

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Hamilton High-Heat Caster Series Comparison

Hamilton high-heat casters use all-metal forged steel wheels for the hottest service and Plastex phenolic for moderate-temperature carts. Match the wheel to your continuous oven, kiln, or heat-treat temperature, then size at a 25% margin.

Series / Config Size Capacity Wheel Best For
High-Heat Forged Steel 6" to 8" up to 9,000 lb Forged steel, continuous to 750F Heat-treat racks, furnace and kiln carts
High-Temp Metal 6" to 8" up to 6,000 lb High-temp cast metal Foundry transfer, sustained radiant heat
Plastex Phenolic 5" to 8" up to 3,000 lb Plastex phenolic, continuous to 475F Baking line and oven carts, moderate heat
Phenolic Light Cart 4" to 6" up to 1,200 lb Plastex phenolic Proofing racks, bakery rack carts

Representative Hamilton configurations by capacity tier. Exact per-size load ratings, wheel diameters, and mounting are confirmed on your quote. Call 844-439-4335.

How to Choose

1. Capacity at a 25% Margin

Add cart weight plus payload, divide by the number of casters, then add 25% for uneven loading and door thresholds. With four casters, treat three as carrying the load so one swivel does not become the failure point. The line tops out at 9,000 lb per caster on forged steel.

2. Wheel Material and Temperature

Forged steel runs continuously to 750F and survives direct furnace and kiln exposure where no polymer can. Plastex phenolic handles continuous service to 475F for oven and baking lines but should not dwell inside a hot oven under load. Match the wheel to the highest sustained temperature the caster sees, not the average.

3. Mount Type and Bearing

Specify a heavy top-plate rig sized to the equipment frame and verify the bolt pattern against your existing mount. High-heat duty calls for a robust kingpin or kingpinless swivel rated to the wheel capacity. Sealed bearings are not used in the hot zone because grease breaks down, so confirm the bearing and lubricant are rated for your temperature.

4. Environment

Heat-treat, baking, and foundry floors expose casters to thermal cycling, scale, and dropped debris. All-metal wheels shrug off scale and resist flat-spotting under heat soak. For carts that cycle between a cold staging area and a hot zone, inspect swivel raceways on a set schedule.

Engineer Tip: The temperature rating is for the wheel tread, not the bearing or grease, and a forged steel wheel rated to 750F still fails early if a standard lithium grease cooks out of the bearing. For continuous high-heat service, spec a high-temperature bearing and grease, or a sleeve or plain bearing rated to your hot-zone temperature. Call 844-439-4335 and we will match the wheel, bearing, and lubricant to your furnace profile.

Frequently Asked Questions

What temperature can Hamilton high-heat casters handle?

Forged steel and high-temp metal wheels run continuously to 750F, covering most heat-treat, kiln, and furnace cart duty, while Plastex phenolic handles continuous service to 475F for oven and baking lines. Rate the caster to the highest sustained temperature it sees, and confirm the bearing and grease are rated for that temperature too.

What is the highest capacity high-heat caster?

The Hamilton high-heat line reaches up to 9,000 lb per caster on a forged steel wheel, and Hamilton custom-engineers higher capacities for heavy furnace charge cars on a quote basis. Call 844-439-4335 with your load, temperature, and frame details for a cross-reference.

Should I use forged steel or phenolic wheels?

Choose forged steel for the hottest service, continuous to 750F, and for foundry and furnace exposure. Choose Plastex phenolic for oven and baking carts up to 475F continuous, where it rolls quieter and is easier on floors than steel.

Do high-heat casters use sealed bearings?

Not in the hot zone, because sealed-bearing grease breaks down above its rated temperature. High-heat casters typically use a plain, sleeve, or high-temperature bearing matched to the operating temperature, so confirm the bearing and lubricant rating with us before ordering.

Are these casters made in the USA?

Yes. Hamilton Caster has manufactured in Hamilton, Ohio since 1907, and the high-heat forged steel and phenolic lines are built there. CasterHQ is a Hamilton authorized distributor shipping from Mansfield, Texas.

Do you stock high-heat casters or are they made to order?

We stock the most common high-heat forged steel and phenolic sizes for same or next-day shipment, and less common temperature-rated or custom rigs ship from the Hamilton factory on a short lead time. Call 844-439-4335 for stock status and lead time on your spec.

Hamilton AuthorizedFull Hamilton high-heat catalog access, forged steel and Plastex phenolic, with cross-reference and engineering support.
USA Made Since 1907Hamilton Caster builds the high-heat line in Hamilton, Ohio, where the company has manufactured since 1907.
Same or Next-Day ShipStock high-heat casters ship same or next day from Mansfield, Texas.
Engineer Support844-439-4335 for temperature matching, bearing and lubricant selection, and Hamilton factory-direct sourcing.
Hamilton Caster Range

Part of the full Hamilton Casters range. Compare related Hamilton series:

Spec guide: Casters for Extreme Temperatures →

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