Key features of the VVBM series

Vertical design & maximum batch utilisation

The vertically aligned vacuum chamber (360 mm height for VVBM200, 240 mm for VVBM150) enables optimum use of space. Up to 800 PCD inserts per batch can be processed in the VVBM200 – up to 6 times higher utilisation than with horizontal competitor systems. The components can be positioned on up to 14 levels (≈25 mm spacing), which significantly increases flexibility for complex tool geometries, allowing both indexable inserts and, for example, milling cutters, etc. to be processed in large quantities.

Patented 3-zone temperature management

• VVBM200: Three independently controllable heating zones (each 120 mm high) with temperature homogeneity <10 °C.
• VVBM150: Also three heating zones (each 80 mm high) with comparable precision.
• This allows different materials (e.g. PCD at <700 °C and CBN/CVD at >800 °C) to be brazed simultaneously in a single process step. Zone-specific control of brazing and temperatures reduces plant runs and increases

1. Partial pressure control & nitrogen cooling (VVBM200 exclusive)

Partial pressure control prevents silver from outgassing from active solders during high-temperature processes (>800 °C) and ensures stable bond strengths. The optional active nitrogen cooling shortens the cooling phase and reduces the total cycle time to less than 60 minutes (including heating, soldering and removal).

2. Process reliability thanks to resume function

A newly developed resume mode allows interrupted processes (e.g. due to power failure) to be continued exactly at the point where they were interrupted. This minimises scrap, reduces downtimes and maintains reproducibility – critical for sensitive materials such as diamond or ceramic materials.

3. Cost efficiency & sustainability

Depending on individual electricity costs per kWh, operating costs (electricity, compressed air, vacuum generation) amount to only €4–8 per soldering cycle. The high batch capacity significantly reduces the cost per component, while the quartz glass chamber design eliminates metallic contamination and improves the overall quality of the tools.

Technical innovations in detail

• Quartz glass chamber: The metal-free quartz glass chamber ensures maximum purity and is particularly suitable for reactive materials. An integrated viewing window enables real-time monitoring during process development or quality assurance; both systems feature this function.
• Remote control & automation: Full remote control via VPN software, including logging and adjustment of heating ramps, holding times and cooling rates.
• Scalability: The VVBM150 is suitable for SMEs with smaller quantities, while the VVBM200 is designed for industrial series production.

Fast cycle for maximum productivity: A key unique selling point of the VVBM series is the fully integrated fast cycle of less than 90 minutes – from loading the system to removing the finished soldered tools. This time frame includes heating the chamber, the actual soldering process with precise temperature control and rapid cooling. Compared to conventional systems, where the cooling phase alone often takes several hours, IEW technology enables continuous cycle time optimisation without compromising quality. This is particularly relevant for series manufacturers who need to combine high throughput rates with consistent soldering results – for example, in the production of indexable inserts with PCD or CBN cutting edges.

IEW services

• Customised fixtures for maximum batch efficiency: A decisive factor in the success of vacuum brazing is a tailor-made workpiece holder. IEW develops and manufactures precision-fit fixtures that are precisely matched to your component geometries and process requirements. Modular holders ensure that every centimetre of the vacuum chamber is used optimally – for example, through stackable holders for indexable inserts. Thanks to these customer-specific solutions, you not only achieve maximum batch densities, but also reproducible quality – whether for complex milling tools or small PCD inserts.

IEW – Experts in soldering technology and materials consulting:

As a pioneer in inductive heating and vacuum soldering technology, IEW GmbH not only offers high-quality systems, but also comprehensive expertise in the selection and application of solder additives. Our engineers provide individual advice to customers on the selection of the optimum solder. Through material science analyses and practical tests, we work with you to determine the best combination of solder and process parameters to ensure optimal solder joints. With this comprehensive consulting service, we minimise the risk of rejects and ensure the longevity of your high-performance tools – from prototype development to series production.

Fields of application & economic efficiency

The systems are ideal for:

• PKD, CBN, MKD and CVD cutting inserts (e.g. in machining or woodworking),
• High-temperature brazing of ceramic composites or diamond tools,
• Medical technology (implant-compatible surfaces),

Thanks to the patented 3-zone temperature control, different types of tools (e.g. PKD and CBN/CVD) can be manufactured in a single pass at different temperatures, which significantly reduces development time and energy consumption.

Conclusion

The VVBM series from IEW GmbH addresses the key requirements of modern diamond tool manufacturing: scalability, precision and cost efficiency. With its resume function, patented 3-zone temperature control and optional nitrogen cooling, it sets new benchmarks for process reliability and throughput – especially against the backdrop of rising demand for high-performance tools.