Extra-heavy casters in the 10,000–44,000 lb range are specified for transformers, presses, machine bases, and aerospace tooling. At this capacity, the kingpin (vertical bolt holding traditional swivel raceways) becomes the failure point under shock loads — kingpin-less designs replace it with sealed double-ball-bearing raceways. Construction is forged steel throughout. Specifying these requires application engineering: tell us the load, the shock profile, and the floor type, and we engineer the right caster.
Specifications
| Capacity range | 10,000–44,000 lbs per caster |
|---|---|
| Wheel sizes | 8"–12" diameter, forged steel |
| Construction | Forged steel rig, sealed double-ball raceway, no central bolt |
| Lead time | In stock for common configs; 4-6 weeks for custom |
Common Applications
- Transformer, generator, and electrical-switchgear positioning
- Press dies and large machining-center transfers
- Aerospace airframe assembly tooling
- Foundry and steel-mill ladles, slag pots, ingot transfer
- Heavy-machine bases for plant relocations
When to Choose Extra-Heavy / Kingpin-less Casters
- Per-caster load exceeds 8,000 lbs
- Shock loads from forklift transfers or process impacts are present
- A kingpin failure mode in standard heavy-duty would be unacceptable
- Custom plate, custom mount, or specialty stem is required
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Recommended Minimum Capacity
2,500lbsper caster
Recommended Tier
Heavy-Duty Industrial
Brands that fit this capacity
Colson Encore · Durable Superior · P&H
Recommended Brands
Brands we carry that perform best in this category.
Industries That Use Extra-Heavy / Kingpin-less Casters
We've specified this caster category across these South Florida and Latin American verticals.
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