Case Studies



I couldn't believe it. it freed some time to pre-flight my next job. I used to be stood by it constantly emptying the bins.  Mick Walton, Cutting Operator


Why was the extractor bin such a significant factor for line performance?

Medica invested in a waste extraction system to remove waste from the cutting machines. However it wasn't 100% effective on larger trim sizes and this resulted in downtime and reduced speed.

SLOW RUNNING AND WASTE IN CUTTING:


DOWNTIME:

One of the largest causes of downtime in the cutting area

AVERAGE RUN SPEED:

37% drop in speed on problem profiles

How was the problem initially tackled?

STEP 1 – SPEAK TO THE WASTE EXTRACTION COMPANY

Some new and large profiles were outside the design specification of the equipment.

STEP 2 – REDESIGN THE PROFILE

If the die could be modified, the waste could be cut smaller and the extraction system could be used. This proved costly and was not guaranteed to work.

STEP 3 – REDESIGN THE EXTRACTION BIN

A cardboard mock up of the bin was created and many iterations of modifications tried.

Forensic study of the problem showed that the extraction worked until the lower vent was blocked. After this, no waste was extracted and the cut off board built up rapidly until it either jammed the machine or was manually emptied.

How did the team solve it once Chartwell were no longer on site?

Following the same method learnt from Chartwell, the cutting team continued to work on this problem. Further trials on bin modifications were performed and finally the problem was solved. The profile can now be run at the maximum machine speed with no problem.