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footwear molding Therma DM570 XPRO SL

Realization of plastic injection molds in 3D printing for making soles

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Table of Contents
BOLFLEX is a Portuguese company that manufacture components for the footwear industry, since 1991. The company is constantly researching new products, processes and methodologies to provide their customers with the latest trends and materials available on the market.

The need

The company needed both to realize samples quickly and to find a solution to reduce the cost and time required to manufacture molds. The entire process, from design to mold manufacturing, already took place in-house.

The solution

Bolflex tested the production of inserts produced with the DWS Systems solution.

The inserts were to be fixed on universal aluminum mold holders for three sizes.
Highly accurate printing was required, both in terms of dimensional accuracy and texture. The aim was to obtain injections of various elastic materials suitable for sole production. The entire process was tested with the injection of E.V.A., SBR and TPU with positive results.
"What an amazing thing technology is...There will come a day when all molds will be 3D printed."
Antonio Ferreira
Company Owner

DWS Systems role

DWS Systems followed the company through the whole flow. First a prototype of the insert was made for visual inspection. Then it was tested on the customer’s premises together with a DWS expert.
BOLFLEX will be able to use the XPRO SL 3D printer not only for the production of THERMA DM570 inserts, but also for the production of samples with flexible resins or PU casting molds.

The benefit of 3D printing

  • Reduced mold set-up times
  • Ability to print complex cavities and undercuts
  • Mold cost -25% (customer makes aluminum molds)
  • Ability to use printer for production prototypes with flexible resins or PU molds
  • More cost effective production of molds up to 2,000 injections