Accepted canonical forms
- Gravity Hopper / Hopper-Bottom
- Agricultural Tender
Gravity hoppers and agricultural tenders configured for grain, seed, fertilizer and related commodity handling.

hopper bottom · grain hopper · grain trailer · seed tender
hopper bottom as belly dump · gravity wagon as highway semi-trailer
3 source-backed specification references represent 1 accepted physical architecture. These records stay out of the catalogue until imagery and exact configuration gates clear.
Model references are supported by manufacturer documentation. Check each configuration for its available dimensions and ratings.
Each reference shows the feature that controls classification. It is not a dimension, rating, compatibility or availability source.
The commodity body and verified discharge path distinguish a highway hopper from an agricultural tender; combination position remains a separate overlay.
Hopper cones and bottom traps create the gravity-discharge path.
A documented conveyor or auger transfers seed or fertilizer from the body.
A gravity hopper body or an integrated agricultural tender system is canonical here; commodity labels and combination position remain separate facets.