Thread: cullet shortage
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Old 01-31-2018, 02:03 PM
Brian Wong Shui Brian Wong Shui is offline
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Location: Atlanta, GA
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In our situation, at current pricing for SP87ER and electric rates and ignoring maintenance and other operational issue, cullet can get to ~1.45USD/lb before it it becomes more expensive than batch on a total cost of ownership basis.

When you factor in that Cristalica has to be 100F hotter across the range to get into a decent viscosity range and its appetite for refractories, I think that it washes out the cost advantage.

Operationally for us, cullet allows us peak capacity during the busy season where we need to charge late at night and be ready in the morning. It also allows us to maintain a cleaner studio by cutting down on the dust issues.

The best scenario for us would be to run batch primarily with cullet being available for peak capacity, quick turnaround situations.

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