Dyna-Purge® Productivity Begins with Purging ®

Home Home

Molder lowers purging cost 47% with Dyna-Purge® M

Dyna-Purge M is much easier to work with, requiring no soaking or adjusting of temperatures.

Purging with Dyna-Purge M lowered purging costs 47% compared to the chemical purging compound Auto Dealer Designs used previously.

PDF  Download a PDF version

Situation:

Auto Dealer Designs, headquartered in Akron, OH, specializes in customized automobile license frames and other advertising specialties. A family owned and operated business, they run 4 different Toyo and Van Dorn injection molding machines. All the machines are conventional with each screw 3 inches in diameter. The production resin is polystyrene with a melt flow of 10 to 16 and processing temperatures are 360° F to 460° F (182° C to 238° C).

Purging once a week for color changes, the company reported that they were using a chemical purging compound. The cost of the chemical purging compound was $6.25 per lb. and when both labor and machine time were added the total cost per purge was $46.10.

The operators reported when changing over approximately once a week to Blue PS from ABS they were experiencing excessive streaking, with the time to purge averaging approximately 30 minutes. A decision was made to sample Dyna-Purge M, a mechanical, non-abrasive purging compound used for a wide variety of resins with processing temperatures ranging from 350° F to 600° F (177° C to 315° C).

Solution:

Dyna-Purge M proved superior to the chemical purging compound for the following reasons:

  • No soaking required
  • No temperature adjustments
  • Easier to work with
  • More cost effective

Results:

  • Lowered the purging cost 47% to only $24.62 per purge.
  • Reduced the purging time to only 15 minutes, an improvement of 50%



 Go Back to Top

  Shuman Plastics SPI Member