Duty-based crane design
Span, SWL, duty group and the real building decide the crane. We do not poster a mill on the home page, and we do not copy the neighbour’s class.
A crane that only looks like the last job will walk the rail in year two. Sazeh Tavana Sharq sizes steel from the process: how often the hook works, what it carries, heat and dust, and whether the roof can take the reactions. Plants stay industry-generic on the marketing surface until they are named on a portfolio page. Named long-form clients here are Iran Khodro and Govah only.
When it fits
Duty-based design is the default, not a premium option. A quiet store and a process bay do not share a girder because the paint colour matched. Send the cycle, not only the tonnes.
Duty and steel
FEM class comes from load spectrum and time of use. DIN practice sizes the girder and the wheels. IEC practice wires the panel. We do not borrow a warehouse class to win a price.
Interface
The building is a constraint, not a backdrop. Rail centres, column grid, headroom and truck access freeze before plate cut. Festoon versus conductor bar follows runway length and how many crabs share the feed.
Related service
The journey page for drawings before cut is process engineering-design. The sold FEM/DIN/ISO/IEC service is services/design. This page is the company reason those numbers exist at all.
- SWL, span, FEM class, building
- No copied neighbour class