Five-piece collapsing core StackTeck worked with a customer to replace its two-piece design for producing plastic paint cans with a mold that allowed the cans to be produced in one piece. The innovative five-piece collapsing core mechanism that made the procedure possible is especially well-suited to part designs that require large undercuts. It offers dramatic thin-walling capability, with undercut size increases about double what is possible with single-piece core mold designs. The technology has been used to produce 0.5-liter, 1-liter and 1-quart round cans using recycled PP.
What’s new? The five-piece design, which StackTeck displayed — alongside sample cans — at the K Show.
Benefits Improved production efficiency. The new mold reduces floor-space requirements and cuts the energy required when two machines are needed to produce multiple can components. The mold maintains all water-cooled core components, allowing it to maintain a fast cycle time. It also eliminates several manufacturing steps, including the need for bonding the two components together, boosting output.
StackTeck Systems Ltd., Brampton, Ontario, 416-749-0880, www.stackteck.com
David Tillett | Associate Editor
Associate Editor David Tillett writes and edits for Plastics Machinery & Manufacturing, Plastics Recycling and The Journal of Blow Molding. He covers new products, industry news, patents and consumer and business equipment. He has more than 20 years of experience in daily newspaper, online and magazine journalism.
