Highway casings and site casings are not the same pile
Tucson collects casings from two very different kinds of work. Trucks running I-10 and the city streets, and machines and haul trucks working on mine sites and construction ground. Mixing those casings in one pile makes the program look worse than it is.
A highway casing is usually retired for wear. If it was run at the right pressure and pulled at the right tread depth, the structure underneath is often in good shape, and it has a strong chance of passing inspection.
A site casing has a different history. Rock cuts, impacts and sidewall damage are the common reasons it comes off, and a casing with a deep cut into the cords or the sidewall will usually fail inspection however much tread it had left. That is not a fault of the program. It is what the ground did to the tire.
Sort them before they go
Keeping the two apart before collection does three useful things.
- It shows you the real pass rate for each. A fleet that sees a poor overall result may find its highway casings are doing well and the site casings are dragging the number down.
- It points at the site problem. A pile of site casings rejected for cuts is evidence about haul roads and loading areas, which is where mining fleet services looks for savings.
- It saves sending what will not pass. A casing with an obvious deep cut can be set aside rather than shipped and returned.
Mark each casing with the unit and position it came from before it leaves.
Where the work happens
This store works with Purcell's retreading program. Casings collected in Tucson are retreaded at the Phoenix retread plant and returned ready to run. The retreading itself does not happen at this store.
Collecting stores nearby
Willcox and Casa Grande also collect casings. Sound OTR casings are covered too; see OTR services.
About this store
The Tucson store carries all nine Purcell tire categories and is managed by Mark Laster.
See the national retreading page for how the program works and for all 54 collecting locations.