Compact angular plunge-cut grinding machine fits the bill

The heat-stable WPG 7 requires little floor space and optimally complements the larger grinding machines in the machine park

Over the past five decades, Wandel CNC-Technik GmbH has evolved into a respected supplier with a proprietary product portfolio and a reputation for precision engineering. Based in Swabia, Germany, and now led by the second generation of the founding family, the company has steadily expanded its capabilities — from milling and turning to grinding — serving a diverse range of industries with high-quality components.

The company currently employs 23 staff and produces between 15,000 and 20,000 parts each month. Its portfolio includes forged blanks, drive shafts, intermediate flanges for commercial vehicles, and traditional machine components such as worm shafts. Milling operations focus on gearbox housings made from aluminium, steel, and cast iron, while grinding is reserved for symmetrical or round parts with diameters ranging from 10 to 150mm and lengths up to 1,000mm.

A key part of Wandel CNC-Technik’s own product line is its ball screw nuts, manufactured in sizes from 16 to 50mm. These are primarily used in handling systems, platform adjustment mechanisms, and general mechanical engineering applications.

To further enhance its grinding capabilities, the company recently invested in an EMAG WPG 7 angular plunge-cut grinding machine. This marks the fourth grinding machine in its fleet and was acquired specifically for machining flange nuts, which require angular plunge-cut technology. A company spokesperson explained: “The compact design of the WPG 7 enables short travel distances and fast movements — a significant advantage over larger universal machines. The limited space at our site also made the compact solution ideal.”

High-capacity operations
The WPG 7 is tailored for batch sizes between 20 and 200 pieces and is retooled up to twice daily, supporting high-capacity operations. Its thermal stability is one of its standout features, allowing precise machining immediately after startup. The spokesperson added: “Compared to previous machining methods, we are seeing shorter cycle times and improved quality.” The machine’s angular grooving technology is particularly effective for grinding flanges that require squareness or axial run-out accuracy.

Programming is handled directly at the machine via a modern control system, which allows operators to store and retrieve programs for around 50 different components. This ease of use contributes to the overall efficiency of the production process.

The company concluded: “The investment in the WPG 7 has paid off in several ways. Its compact footprint optimises space, thermal stability ensures consistent quality, and the angular plunge-cut technology delivers superior results for flange parts. The quick installation and excellent support from EMAG made the transition to production seamless.”