Joest Inc

We are a medium-sized, owner-managed company and an international leader in the field of vibration technology. Our core competences are the design and manufacture of vibrating screens, vibrating drives as well as setting up complete process engineering solutions for processing bulk materials.

Joest delivers special #vibrationtable for German stainless-steel producer. Special design for compacting powder metal. For this assignment, JOEST designed a compaction table measuring 1800 x 1800, with a deck load of 12 t and an adjustable oscillation frequency of up to 33 Hz. The table consists of a solid, 200mm thick steel plate with T-notches. The compaction table compacts the powder metal to enable the production of high density hard-metal-briquetting-rings. These are produced using the HIP process (Hot-Isostatic Press). The powder metal and additional moulded parts are placed in a mould to be compacted. The mould is deformable, yet air-tight and ring shaped and is made of a thin metal sheet. Afterwards, the mould is set in an air-tight oven, pressurized with up to 200 Mpa (2000bar) by a cover gas. With temperatures up to 2000°C, this is where the sintering process takes place.