Our sound and vibration experts base their solutions on solid theoretical grounds. By working closely with technical colleges and the trade press, we always have access to the very latest findings within sound and vibration. We use this knowledge to recommend efficient and safe measures within industry.
What’s more, the experience gleaned over the years serves to provide customers with ever better solutions. Add to that our seminars and courses, and it’s easy to see why customers stand to gain from working with ÅF.
Shop talk permitted
In a potato chip factory, there are numerous sources of noise, such as potatoes falling into a sheet-metal container or blowing noises from pneumatic components and cylinders. Swedish snack producers Estrella and Maarud work actively to reduce noise levels in their plants. A special team was set up to solve the problem, with representatives from management, personnel and ÅF-Ingemansson.
The employees were asked to fill in questionnaires to identify the most irritating sources of noise. Selected employees also wore monitoring equipment in order to measure and evaluate the daily doses of sound. This process allowed us to identity key sources of noise before deciding on measures. A few examples of remedies: Pneumatic knives replaced noisy nozzles, and new, adjustable, sound-dampened cylinders eliminated the beating sound of the older ones.
The aim is to achieve a maximum sound level of 75 dB(A) in the packaging plant, compared to today’s 80 dB(A). That should get everybody talking.
Low noise levels in the surroundings
Many industries are situated close to offices and residences. That’s why paper and steel mills, chemical plants and manufacturing industries are working hard to lower noise emissions to their surroundings.
Not surprisingly, our services are in growing demand. We identify and measure all sources of noise and compile the results in a simulation program. This allows us to predict the level of sound emitted to the surrounding area. Measurements at selected points around the plant verify the results. A sound model is then used to suggest remedial measures as well as helping to assess the consequences of factory extensions and other changes.
Thanks to ÅF’s competence, experience and state-of-the-art measuring and calibration equipment, noise emission from fans, ventilation shafts, cooling towers, compressors and transports are minimised. Follow-up measurements verify that actions taken have had the desired effect. This is often a requirement stipulated by local authorities.