Cutting shapes

We start with best-grade Swedish stainless steel strips that are manufactured specifically for the purpose. They have a homogenous structure and the lowest level of inclusions and impurities. In the first step, we cut out the shape of the blade with micrometric precision.

Heat treatment

This step is crucial for the quality of the blades. First, we quench blades in the dedicated furnance heating them up to 1050 °C. After rapid cooling blades achieve very high hardness but became brittle. So, we apply tempering to reduce brittleness and to obtain high toughness and ductility.

Our blades have a final hardness of 55-58 HRC (Rockwell Scale).

To assure that each blade follows the optimized time-temperature function we developed special instrumentation. Our process guarantees the optimized microstructure of the blade material and the best compromise between toughness and brittleness.

Grinding and polishing

We realize several steps to obtain the final geometry of each blade. Starting with rough grinding we shape the blade which is then repeatedly polished. The process is realized in optimized conditions to prevent overheating of the blade surface which would annihilate its firmness. Each blade has to pass several geometry tests including flexibility control.

Handles

When the blade is perfectly shaped it is ready to be fixed in the handle. We offer several ergonomically designed handles that fit any hand. They come in different colours and deformability to meet the customer's personal preferences. All handles are slip-proof and provide a solid grip, necessary in everyday use. All the materials we use comply with the European hygiene and food safety standards and all handles are adapted to direct contact with food.

Sharpening

The final step is to form the edge to ensure unmatched cutting properties and superior edge retention. We developed an innovative multi-step sharpening process that ensures full repeatability and results in optimized edge geometry. Each blade is tested with a special laser gauge to confirm the proper cutting edge angles.

© 2021 Copyright: JMB