Seals Help Blow Molding Machines Work Longer
Resource from: Trelleborg Sealing Solutions Likes:3040
Aug 03,2011
(August 2, 2011)
Guangzhou Tech-Long, the largest manufacturer of PET (polyethylene terephthalate) bottle blow molding machines in China, needed a sealing solution for the dispenser located in the center of a blow molding machine, the core part of the machine where failure can lead to high costs due to lost production time. To achieve optimum performance the choice was a specially developed Turcon® PTFE based compound. A number of seals were specified including a custom Turcon® Roto Glyd Ring®, with a unique pressure relieving function.
The aim is to maximize production
The sealing system within the dispenser needed to operate in 1 to 4 MPa/ 145 to 580 psi dry air pressure at rotational speeds of 150 mm/s / six in/s non-stop for between 16 to 20 hours per day.
“We are continually trying to offer our customers machines that maximize production capability while minimizing downtime for maintenance,” says Zou DaQun, Technical Director of Tech-Long. “Trelleborg Sealing Solutions is a very good partner to Tech- Long. They do not just sell products but more importantly provide professional technical services and solutions. That is what Tech-Long is really interested in and why we have been in cooperation with Trelleborg for 10 years continuously.”
Successfully sealing dry air
Dry air is a difficult medium to seal. To successfully do this the seal must initially demonstrate a very smooth and tight dynamic sealing surface after a short run in. It must then have outstanding wear resistance in poorly lubricated conditions.
Sealing configurations from Trelleborg Sealing Solutions are now successfully operating in Tech-Long PET bottle blow molding machines globally. Tech-Long and Trelleborg Sealing Solutions continue to work together on new developments.
(Trelleborg Sealing Solutions)
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