Horst Scholz Ltd. was established 1997 in Kronach, Germany and is still a family owned and operated business. The company manufactures precision plastic parts for micro-technology, gear technologies and medical engineering and specializes in the high-end performance modeling of plastics for mold making. All plastic molds are manufactured in-house.
The name Horst Scholz is synonymous with outstanding product quality. Quality that is made possible by the use of 75 high-performance injection molding machines plus peripheral equipment.
In 2017 Horst Scholz was in the process of creating 40 new molds. Their ERP system is Microsoft NAVISION. For lack of a better planning tool, they were forced to plan their processes with the help of Excel, i.e. manual planning and control. The manufacture of tool molds requires that many different types of electrodes first be produced for use in the EDM machines; at the same time a large variety of metal parts must be manufactured before all the various components meet in pre- and final assembly. Hundreds of processes - many of them running parallel - must be planned for the manufacturing of a single mold. Several projects may run concurrently, i.e. many orders are processed using the same machine pool.
With such an array of complex manufacturing processes, including a combination of both external and in-house manufacturing, it is impossible to expect a human brain (even with Excel) to create optimal sequence planning. The consequences for company Horst Scholz:
Horst Scholz GmbH & Co. KG was enjoying steady growth. However, due to the burden of increasingly complex planning for a steadily growing number of orders, the need for process optimization was becoming more and more urgent. Meeting these new demands would require a significant increase in effectiveness and efficiency.
Martin Rebhan and Karl-Herbert Ebert, top managers at Horst Scholz GmbH & Co.KG, contacted Asprova AG in mid-October 2017, described their situation and asked for technical advice. We recommended the following systematic approach in choosing their planning tool:
The most important requirement for any planning software is its ability to map the “reality” of a factory 100%, that means, taking into account all production properties, processes, process rules/restrictions and planning restrictions. Mapping the rules and restrictions for mold making specific to Horst Scholz Ltd. was one of many challenges, others included:
After successful verification of the Horst Scholz-specific prototype, an Asprova license was ordered at the end of 2017.
Both the management, Martin Rebhan and Karl-Herbert Ebert, and the (daily) Asprova users and production planners at Horst Scholz are enthusiastic about the new Asprova planning software.
More information about Horst Scholz GmbH: