Up to 50 % more output – on the old machine
With one tank fill, drive 50 percent more kilometres. Who wouldn’t say “yes”? With the upgrade sets from MHT Mold & Hotrunner Technology AG (Germany), preform manufacturers who use a Husky HyPET injection molding machine, can produce up to more preforms – without needing to make changes to their machine!
In the entire packaging industry, the signs point to more sustainability and saving resources. With this requirement, the development team set to work its task. The result: An improved degree of effectiveness, higher cooling and energy efficiency and finally, the ecologically and economically purposeful possibility of continuing to operate an existing machine with higher output.
Machine type With MHT upgrade Possible so for Productity
HyPET 120 48 cav. 32 + 50%
HyPET 225 72 cav. 48 + 50%
HyPET 300 96 cav. 72 + 33%
HyPET 400 128 cav. 96 + 33%
HyPET 500 160 cav. 144 + 11%
& GL 600
By moving the cavities slightly closer together and adding cavities on the left and right, the MHT team achieved a higher cavitation without making the molds much wider. The stacks, i.e. the molds, in which the preforms are created, are identical with those that have been well-proven for years. The space saving therefore does not go hand-in-hand with a more filigree mode of construction, which may be more susceptible to faults.
When the preforms are produced, they need to be post-cooled in order to be dimensionally stable for the further handling as bulk material. This is where a self-developed, three or four-stage-post-mold cooling solution appears, for which an international patent has been applied for.
The upgrade set is available for preforms up to a maximum water thread diameter of 30/25. MHT assumes the complete project management of the prototype production, right up to ramp-up of series production and guarantees a smooth-running changeover to the new number of cavities. The upgrade set is offered within the context of a mold exchange or conversion, such as to a different preform design or weight.
After installation by an MHT service engineer, it is only a matter of “plug & play” for the preform producer – but with up to 50 % more output than previously.
Note: Husky® and HyPET® are registered trademarks of Husky Injection Molding Systems, Ltd., with its headquarters in Bolton / Canada. MHT Mold & Hotrunner Technology AG has no connection to Husky.
Dr. Sabine Kob