Gypsum industry news

France: Knauf France aims to use 35% recycled gypsum at its Fos-sur-Mer gypsum wallboard plant in Bouches-du-Rhône, with an interim target of 10% by 2025. The company inaugurated the 30Mm²/yr plant in March 2024. It is currently using its own offcuts in production, but has a dedicated silo in which to also store gypsum from other sources in future. The plant’s wallboard requires 15 – 20% less energy than is used at a ‘traditional’ Knauf plant through the use of a vertical mill and high-efficiency driers. Its water use is optimised by drawing it in batches.

Les Cahiers Techniques News has reported that general manager Christine Muscat said "The ramp-up is gradual and we are at a third of production capacity, which we plan to reach fully in the second half of 2025."

Germany: Currax and Siemens have announced their collaboration on a mill operations digitisation pilot project involving the Simotics Connect 400 motor data collector and transmitter. They hope that analysis of data processed via the Simotics 400 will better enable the remote operating of mills ‘to increase efficiency and component life’ and speeding the shift towards automation and production that is resilient to crises such as the coronavirus outbreak.

Indonesia: PT Siam-Indo Gypsum, a joint venture of Wings Group and Thailand’s Siam Cement Group, has ordered a Gebr. Pfeiffer MPS 180 GC vertical mill for grinding, drying, classifying and calcining gypsum at its 20Mm2/yr Bekasi plant in Java. With a total drive power of 210kW, it will mill 40t/h of gypsum to a fineness of 100 µm.

Sweden: Gyproc Saint-Gobain has commissioned a new Claudius Peters type EM 65-592 grinding and drying mill, to be installed at its Gyproc Balsta plant.

The project, which includes dismantling of the existing mill and erection of the new one within a six-week time frame, uses Claudius Peters' newly developed hydraulic tensioning system for adjustment of grinding pressure. This system, installed here for the very first time, has been specially developed to optimize the efficiency of the grinding and drying processes and also to aid maintenance.

"This new EM drying and grinding mill, representing the very latest in technology from Claudius Peters, delivers unprecedented levels of efficiency and precision. We are delighted to be partnering with Gyproc Saint-Gobain in this project," said Stephan Oehme, sales director for Claudius Peters.

Commissioning of the new mill is planned for the middle of July 2016.

Sweden: Gyproc has awarded a contract to Claudius Peters Projects for the supply of a gypsum grinding and drying mill type EM 65-592. The mill will be installed at the Gyproc Balsta plant in Sweden. The contract was signed in October 2015.

The scope of supply includes the dismantling of the existing mill as well as the supply and erection of a new mill, including all connections to the existing periphery. A special challenge for this project is the tight schedule for the dismantling and erection of the equipment, within six weeks. Additionally, Claudius Peters Projects' newly-developed hydraulic tensioning system to adjust the grinding pressure will be installed for the first time.

Commissioning is planned for middle of July 2016.