Every minute a paper machine is down has a price. Putting a rand value on a stop turns 'the pump trips sometimes' into a clear case for a repair or a spare.
Use your contribution per tonne (selling price minus variable cost), not the selling price, so the number reflects what the mill really loses.
Performance
Tonnes and money lost while the machine is down, to help justify a repair or spare.
Selling price minus variable cost per tonne
Cost of this stop
11,475R
Lost tonnes = rate × minutes ÷ 60. Cost = lost tonnes × contribution per tonne + repair costs.
Production rate
Tonnes per hour, day and shift from machine speed, grammage and trim width.
Reel length and weight
Paper length and weight on a reel from its diameter, core, width and caliper.
Consistency and dilution
Dry fibre flow, and the water needed to dilute stock to a target consistency.
Basis weight, bulk and density
Convert grammage to imperial basis weights, and work out bulk and density from caliper.
FibreMate logs reels and stops as the shift runs and works out production, OEE and lost time for you.
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