With the new compact Heckert machining centres for pallets of 400 and 500 mm, Starrag has successfully set new standards in terms of output and quality characteristics. A key factor of these machining centres is their high degree of rigidity, which is a consistent feature of the framework assemblies and one that is being continuously optimised in the test field. The end users benefit from increased productivity and high-quality machining results.
Almost two years have passed since Starrag presented its horizontal machining centres, which were newly developed from scratch — the Heckert L40 (line module for 400-mm pallets) and Heckert H50 (four-axis for 500-mm pallets). Thanks to the modular concept, further variants followed within a short period of time, such as the five-axis X40/45 and the five-axis, multi-functional T45.
During the development of this series, the Chemnitz-based company concentrated first and foremost on high productivity per unit area. This approach was clearly a success, as demonstrated by a reduction of as much as 30% in the space requirement of the machines and a 15% increase in productivity. Secondly, the developers paid close attention to achieving a consistently high quality of mechanical engineering — an asset that users of Heckert machines have appreciated for many years.
Quality characteristic: "Rigidity"
The new compact machining centres boast a high level of performance, process reliability and long-term precision. As the basic requirement for achieving these characteristics, a high degree of rigidity constitutes an integral component of the design concept. Rigidity is a crucial quality characteristic, particularly in framework assemblies—i.e. in machine beds, columns, tables and rotary swivelling units—and is necessary not only for heavy-duty cutting, but also for the processing of demanding materials and high-performance excavation of lightweight materials, such as those commonly used in aircraft construction.
Designers and technologists at the Chemnitz site worked together closely during the development of the new framework assemblies, capitalising on their many years of experience as well as modern analytical methods. Numerous calculations and experiments played a role in finding the perfect composition of rigidity, weight and cost.