For coil packing machine suggestion, there is a basic principel for getting the best packaging: Big machine works for big coil, small machine works for small coil packaging.
In considering the cost, the solution suggested for the coil packing machine would be designed per biggest coil size. And make the big machine compatiable per small coil.
For example: OD: 600-1800mm Width: 200-800mm ID: 508-610mm.
The machine have to be designed for biggest size: OD1800mm Width800mm. So that make it works for smallest size: OD600mm Width200mm.
What will happen for the big machine works for the small coil packing?
This video shows the big wrapping machine designed per OD:1400mm works for OD:700mm packaging by stretch film. The surface of the coil full of the wringkle. Becuase of the there is a big Eccentricity.
How to resovle the problem caused by eccentricity in big machine works for small coil packaging?
By DRAWING BACK DEVICE
The videos shows the testing about the big machine for coil OD:1500mm that works for small OD:650mm. The surface of the package is smoothly by properly tension control.
BY BELT TENSION CONTROLLER
The videos shows the OD:700mm steel coil packing by paper. The tension controller in the machine capable resolve the problem to maintain the good tension from bigining to the end.
Higher flexibility – The machine can handle the full range of coil sizes that your production requires, from smallest to largest. This means less need for multiple machines to cover different sizes.
Lower capital cost – Designing and building a single machine for the largest coil size is often less expensive than multiple machines for different sizes. Economies of scale apply.
Less floor space – A single larger machine may take up similar or less floor space compared to multiple smaller machines needed to cover the full coil size range.
Higher throughput potential – The machine is optimized for the highest packing speeds required for large coils. It can then also achieve these speeds for smaller coils if needed.
Easier operation – Operators only have to learn to use one machine versus multiple machines for different sizes. This simplifies training and changeovers.
Lower spare parts inventory – Fewer unique parts are needed compared to multiple machines. This reduces costs and complexity.
The main challenge is that the machine may be oversized when packing small coils. This can lead to:
Lower packing density for small coils due to excess space in the machine
Increased material usage for small coils
Slightly slower speeds for small coils due to more inertia to overcome
But overall, the benefits of flexibility, lower costs, space savings and higher throughput usually outweigh these drawbacks. So designing one machine for your largest required coil size, but compatible with all sizes, can be an efficient packaging solution.
