Hamilton built the Aerospace line for one specific buyer: the aircraft assembly tooling engineer who needs casters that don’t deflect under repeat fixture indexing, don’t introduce vibration into the assembly, and don’t fail audit when the FAA inspector traces serial numbers back to the manufacturer’s certification.
Aerospace assembly tooling sits at the intersection of several requirements that no other industry combines. The fixture has to roll under a wing or fuselage section weighing 1,000-3,000 lb. It has to position to within a fraction of an inch — meaning the caster can’t flutter, can’t flex, can’t introduce vibration. The tread can’t mark the polished concrete floor (the FAA cares about traceability of any contaminant). The bearings can’t shed particles into the assembly area. And the whole caster has to carry an FAA-traceable serial number for audit.
That’s the spec that Hamilton built the Aerospace line to. Precision sealed bearings, stainless steel construction (no rust, no shed), 70-durometer UltraGlide polyurethane tread (firm enough not to deflect, soft enough not to mark), and serial-numbered top plates with documented material certs available on request.
The flagship aerospace caster. UltraGlide 70D black tread on aluminum core, sealed precision ball bearings, stainless steel swivel construction. Spec’d into commercial aircraft assembly tooling, military fighter assembly jigs, and large GSE platforms.
Spring-loaded suspension version of the Aerospace line. The integrated spring absorbs shock from rough hangar floors, transition seams, and tow-bar coupling impacts. 10″ DuraGlide polyurethane wheel on 3/4″ precision ball bearings. The right pick for ground support equipment that gets towed at speed across mixed surfaces.
The standard Aerospace catalog tops at 3,100 lb. Heavier aerospace applications (engine cradles, large wing fixtures) require either Mini-Mite low-profile builds or extreme-duty kingpinless casters. Both available as custom configurations with aerospace material certs.
Spec the Aerospace line if any of these apply: (1) the fixture indexes to a precise position (tooling, not transfer), (2) the floor is polished or epoxy-coated and cannot be marked, (3) FAA or military serial-number traceability is required for audit, (4) the tread material has to be certified non-contaminating in a clean assembly area, (5) the customer is one of the aerospace primes (Boeing, Airbus, Lockheed, Northrop) and has a documented preferred vendor list that includes Hamilton.
Skip the Aerospace line and step down to standard kingpinless if you’re moving aerospace parts but not indexing them — pallet transfer, raw material movement, finished-goods staging. Those use cases don’t need the precision bearing or the 70D tread.
