DN Solutions, the world’s third-largest and South Korea’s leading machine tool manufacturer, has launched its new DNC series (DNC 8050, DNC 8060) of high-precision grinding machines for semiconductor manufacturing.

The name ‘DNC’ stands for DN Solutions Ceramic, representing the company’s ceramic machining equipment. These machines are designed to manufacture consumable components such as focus rings used in the semiconductor wafer process. Since these parts operate inside chambers that endure high temperatures and exposure to chemicals, they are made from materials like quartz, ceramic and silicon carbide (SiC) — all of which are notoriously hard to machine. The DNC series enables precise grinding of these hard-to-cut materials.

Quartz is harder than carbon steel yet brittle and prone to fracture, making it challenging to machine with conventional tools. Even with costly diamond tools, micro-cracks and breakage often occur. Moreover, quartz is sensitive to impurities, demanding an exceptionally clean machining environment.

To address these challenges, DN Solutions developed a high-performance grinding spindle for the DNC series, capable of 10,000 rpm and 7.5 kW output. This spindle delivers both high productivity and precision, even when machining difficult materials such as quartz and ceramics.

Vibration- and heat-induced errors have also been minimised. The monolithic, high-rigidity bed and high-precision feed-axis guides suppress vibration and prevent thermal displacement during long continuous operations. While conventional machines tend to lose precision due to spindle drift, DN Solutions says its DNC Series ensures long-term accuracy and structural rigidity, extending equipment lifespan.

Fine quartz dust (sludge) produced during machining can cause serious equipment failure. To prevent this, DN Solutions adopted a fully enclosed sliding cover that shields the inclined bed surface, blocking coolant and dust from entering the machine interior.

More information www.dn-solutions.com

The preparations for GrindingHub 2026 from 5 to 8 May are picking up speed: the latest provisional list of exhibitors shows 360 companies.

“The participation of leading manufacturers from the grinding technology sector demonstrates the industry’s clear commitment to GrindingHub as a place for exchange, innovation and international networking,” says Dr Markus Heering, managing director of event organiser VDW (German Machine Tool Builders’ Association). “It’s much more than just a trade fair – it’s the place to be for anyone who is interested in exchanging ideas and finding solutions for pressing production problems related to grinding technology. Keeping this dialog going is particularly important at the present time when the economy is challenging.”

While the economy remains weak, incoming orders for grinding technology have at least stabilised after two years of decline. They rose by 4% in the first nine months of 2025 – driven by customers outside of Germany with an increase of 17%. The eurozone in particular (up 32%) is the driving force behind this trend.

In 2026, other international trade fairs will be held at the Messe Stuttgart trade fair centre in parallel with GrindingHub. In particular, the Surface Technology Germany exhibition and the MedtecLIVE show will provide a great deal of relevant synergy.

This combination offers real added value for everyone involved, emphasises Sebastian Schmid, board member at key partner Messe Stuttgart: “The simultaneous trade fairs grant our trade visitors a unique opportunity: they can discover a wide range of relevant topics in one place – efficiently, connected and inspiring. For exhibitors, this means greater reach and access to key target industries. To make networking as easy as possible, one ticket provides access to all parallel trade fairs.”

More information www.grindinghub.de

Secure spare parts supply and improved blast performance, these were the reasons why a manufacturer of saw bands invested in new turbines for an existing belt-driven shot-blast machine. The customer chose the Rutten Gamma 330-HD turbines from Rösler not only because of their wear-resistant design, but also their 25 % higher blast performance and lower energy consumption. In the meantime, the customer decided to equip other blast machines in his manufacturing organisation with Rösler turbines.

The saw bands produced by this company are known all over the world for high quality. These steel strip products offer precision, exact edge dimensions and flatness. To maintain its quality standards, the company makes all its products in Germany, even though around 90% are exported to other countries. A key stage in the manufacturing process is a shot-blasting operation in a belt blast machine.

In short, the machine used for this shot-blasting task, supplied by a manufacturer in southern Europe, urgently needed modernisation. Therefore, the engineer responsible for streamlining manufacturing operations discussed the customer requirements with the Rösler team during a visit at the Deburring Expo exhibition.

The topic of this conversation was not only a secure spare parts supply and first-class technical service but also improved blast performance to provide a higher workpiece throughput. Based on the detailed process parameters provided by the customer, Rösler developed a technical concept and submitted a quote for retrofitting the turbines on
the existing blast machine.

The high performance of the Rutten Gamma turbines is based on their special design. They contain four Y-shaped throwing blades with a precisely calculated blade curvature. This concept guarantees precise blast media acceleration and delivery at maximum throwing speeds and, compared with conventional turbines, improved shot-blast efficiency.

More information www.rosler.com

With the new EcoCvario, Ecoclean has developed a flexible solution for water-based precision cleaning. The modular concept allows different cleaning technologies and drying processes to be combined and adapted to individual requirements in such a way that high cleanliness specifications can be met reproducibly, quickly and sustainably, reports Ecoclean. In addition, innovative equipment details, effective heat management, optimised media flow, and efficient media treatment contribute to cost- and resource-saving processes.

Increasing quality requirements are leading to more demanding cleaning tasks with high cleanliness specifications across all industries. This is regardless of whether mass-produced parts are to be cleaned as bulk goods or precision parts as set goods. These applications require application- and customer-specific fine cleaning processes, for which Ecoclean has developed the new EcoCvario.

The powerful spray-flood cleaning system with vacuum-tight working chamber is designed for batches weighing up to 150 kg and measuring a maximum of 650 x 470 x 400 mm The system features three flood tanks as standard. Its compact footprint and wide range of automation options also make it suitable for seamless integration into the production chain.

By using various cleaning technologies combined as required, this all-rounder can be adapted to a wide range of applications. For example, the pulsated pressure cleaning (PPC) pressure-change process enables contaminants to be reliably removed from complex internal geometries, fine capillaries, narrow undercuts, deep bores with small cross-
sections or the delicate structures of printed components.

With power-controlled ultrasound at different frequencies, individual vibration units can be selected or deselected depending on the application and parts. For stubborn contamination, high-pressure cleaning comes into its own. Gentle flooding ensures that delicate and sensitive components emerge from the cleaning system clean and undamaged, in line with requirements.

More information www.ecoclean-group.net