overhead bridge crane drawing

Overhead bridge crane is the special industry machine, for different materials, working conditions, users requirements, it will be different design. How do we give different design?

First, Analyze users detailed requirement, also can send techncial personnel to survey and design on site.
Second, According to technical communicate with customers, give suitable and resonable solution
Third, according to the solution, drawing a overhead crane CAD drawing, confirmed by the customer.
 

Here are some for reference.

Double Trolly Overhead Crane



Double Girder Hooks Overhead Crane