Printing device for cardboard boxes
Cost reduction of 290,000 yen
in one year by reducing moment-stops
Moment-stop improvement example
Assembling process of soft candy case
Cost reducing effect
Achieved a reduction in labor cost of 370,000 yen/year.
Device description
Assemble by pushing the lid of the soft candy case into place.
Problems that have occurred so far
Due to the vibration of the rod that occurs at low speeds, which is unique to air cylinders, the lid may not fit properly. This was causing the moment-stop.
Each moment-stop lasted about 20 minutes, and occurred about twice a day on average.
Improvements brought by electrification
The electric cylinder has excellent stability even at low speeds. Since the speed can be specified numerically, it operates stably even at low speeds, allowing optimal fitting motion.
As a result, defects in the fitting process no longer occur, and moment-stop ceases.
Cost reduction effect assuming the number of workers is 1
Conditions
Labor cost
2,300 yen/hour
Number of operation days per year
240 days
Effect
By replacing it with ROBO Cylinder, the time used to deal with moment-stop decreased from 40 minutes (20 minutes x 2 times)/day to 0 minutes/day.
When using the air cylinder, the device was stopped for a total of 40 minutes a day due to moment-stops.
By replacing it with the ROBO Cylinder, moment-stops cease, and the
labor costs allocated to recover from these were reduced by 384,000 yen/year.
Breakdown
Time consumed by moment stops
Air cylinder: 20 minutes (moment-stop duration) x 2 times (moment-stop frequency)/day = 40 minutes/day
ROBO Cylinder: 0 minute
Labor costs incurred due to moment-stops
Air cylinder: 40 minutes x 2,300 yen/hour = 1,530 yen/day
1,530 yen x 240 days = 367,200 yen/year
ROBO Cylinder: 0 minute
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