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Performance optimization is an iterative process that requires learning quickly from past experiences. You will find below practical case studies based on our experts’ extensive experience assisting pulp and paper mills in their maintenance decisions.

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Motors driving heavy loads are subject to significant torques on their shafts and couplings during speed changes. Different scenarios can cause these to fail when exceeding their mechanical limits. These could result from modifications in the controls such an increased acceleration rate or from significant mechanical wear. Read More

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Every mill has strict maintenance programs in place to ensure optimal performance of its equipment at all times. These measures target the components with predictable wear and tear. However, some components can fail unpredictably, like drive control cards for instance. By having the proper tools, it is possible to detect signs of... Read More

Motors driving heavy loads are subject to significant torques on their shafts and couplings during speed changes. Different scenarios can cause these to fail when exceeding their mechanical limits. These could result from modifications in the controls such an increased acceleration rate or from significant mechanical wear. Read More

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Sudden variations or drifts in the performance of hydraulic components dramatically increase the probability of inducing roll defects.

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rider roll load

On many winders, the rider roll load is controlled in closed loop using load cells. Several events can cause load cell measurements to shift or drift, modifying the effective load level, thus impacting roll quality and stability. To prevent such situations, load cell measurements should be automatically verified on a continuous basis. Read More

Malfunction of unwind brakes can interfere with the tension control leading to issues with sheet stability and internal tension variations within wound rolls. Defective operation of unwind brake system can cause the brake pads to remain partially applied during winding. This situation does not provide obvious signs and therefore can remain undetected until... Read More