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August 13, 2020
We would like to share with you this Application Improvement Example.
   Application Example   

Sealing Equipment for Cardboard Boxes

Equipment Overview

Process to fold cardboard box lids for shipment.
Daily production is about 5,000 boxes.

   Before Improvement

  Previous equipment  

Cardboard boxes are transferred on a conveyor and a front inner lid is folded inward by blade .

After a sensor detects the cardboard box, the air cylinder moves down the arm to fold the back inner lid inward.

By transferring the cardboard box with the outer lids touching the guide bars , the outer lids are gradually folded inward.

Boxes are transferred to the taping device .


The back inner lids could not be folded sometimes because of delayed timing of the air cylinder.

  Countermeasures for problems in folding inner lids  

When a problem occurred in folding inner lids, the conveyor was stopped to adjust the speed controller of the air cylinder and to redo the packing. This work (10 minutes) occurred 3 times per day.

   After Improvement

  Improved equipment  

The air cylinder has been replaced by an ELECYLINDER.


There is no delayed timing of arm's downward movement, eliminating folding errors of the back inner lid.

  Effects     After replacing an air cylinder with an ELECYLINDER

The working hours has been reduced by 30 minutes per day.
      Speed controller adjustment and re-packing of 30 minutes per day have been eliminated.

Annual saving for labor cost is $1,800.
      US$15 x 30 minutes (10 min. x 3 times) x 240 days = US$1,800.
      *(Condition: Labor cost US$15/hr., Annual operation 240 days.) Exchange Rate: 1 (USD) = 100 (Japanese Yen).

IAI Sales & Tech Support Lines

Please call IAI America from 8:30 am to 5:00 pm at these locations:

Eastern U.S. office: (678) 354-9470
Central U.S. office: (800) 944-0333
Western U.S. office: (800) 736-1712

Outside office hours, please use our contact form.

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