African packaging supplier invests in three large MX injection molding machines from KraussMaffei
South African packaging supplier MCG Industries has invested in three large MX 1000-17200 injection molding machines from KraussMaffei.
MCG decided in favor of using a new, sophisticated two-cavity mold and selected the suitable injection molding machine provided by the mold maker Schoeller Allibert and KraussMaffei. The goal is to achieve more output at lower cost without sacrificing quality, durability or user-friendliness.
First, the focus was on the mold. The bid entailed a mold with two cavities – a similar mold was already being used to make transport crates for beer and brewery products.
Due to the high requirements, a special injection molding machine was needed. KraussMaffei’s MX 1000-17200 machine offers optimal utilization of platen dimensions and clamping forces. On-site service and a training concept are provided for MCG.
Selected technical components also supported MCG’s requirements with regard to shorter cycle times and low energy consumption, according to KraussMaffei.
“This led to choices such as the HPS barrier screw being installed in the MX machine, providing exceptionally high throughput with excellent melt quality and allowing shorter cycle times, and a 20% lower energy consumption as a result,” explained Klaus Zeiler, Head of the Business Unit Logistics/Packaging at KraussMaffei.
The insulating sleeve around the injection unit also offers potential for saving energy. As said, it reduces the heat-up time by 20-30%. The total heat energy required drops by 20-40%.
“Schoeller Allibert, KraussMaffei and its South African representative, P&CT, developed a solution perfectly tailored to our requirements. We were amazed at how effectively they worked together,” commented Ian Victor, Managing Director at MCG. “The combination of a precisely configured machine and a high-tech mold allows us to realize a wide variety of tasks simultaneously, such as short cooling times without warpage or sink marks. And all on two cavities.”
“This required a very uniform melt and a very short injection time. The machine from KraussMaffei played a significant part in making this possible,” said Stefan Scheuerer, Director Sales Africa for Schoeller Allibert.
MCG had specified a cycle time of 30s, quite a challenge for the product size (424x334x310mm). At machine acceptance, KraussMaffei was able to run a stable process at a cycle time of 28s.