Fill in the top fields with your own site specific data.
Sample Frequency: The number of tonnes of production between samples
Time to get sample: time from when the feed into the plant stopped until it is re-started/ back up to full throughput. Basically the number of minutes of lost production while shutting down to sample.
$/tonne: this is the value you put on a tonne of material processed by the plant. It will later be used to calculate the lost production cost of shutting down to sample.
Plant run time: the numbers of hrs per 24 hr day the plant is processing material.
Downtime cost: the cost you associate with having the plant running but not actually processing any material.
Plant Throughput: the average amount of material being processed by the plant under normal conditions in tonnes per hour.
We know different companies have different metrics for capital expenditure justification, so we have provided two different methods of determining the time it takes to recoup the cost of a RockPro Sample Taker. Obviously, the additional advantages of improved safety and accuracy aren’t figured into these equations.
LOST TONNAGE $/ DAY: The tonnes of material that would have been processed by the plant if it wasn’t shut down for sampling multiplied by the value assigned to each tonne of material.
DOWNTIME COST/ DAY: The time the plant isn’t running at capacity multiplied by the cost associated with that down time.
