--- title: NIRAFON Pneumatic acoustic cleaners description: The NIRAFON pneumatic/air-driven acoustic cleaners are typically used for the cleaning of areas whose temperatures are lower than + 1000 °C. --- [Skip to content](https://www.nirafon.com/nirafon-pneumatic-acoustic-cleaners#main-content) [![Nirafon](https://www.nirafon.com/hs-fs/hubfs/NIRAFON_newlogo-blue-2.png?width=3381&height=1402&name=NIRAFON_newlogo-blue-2.png)](https://www.nirafon.com/?hsLang=en) - [Home](https://www.nirafon.com/) - [Products](https://www.nirafon.com/products) Show submenu for Products - [NCSD](https://www.nirafon.com/ncsd) - [Pneumatic acoustic cleaners](https://www.nirafon.com/nirafon-pneumatic-acoustic-cleaners) - [Cases](https://www.nirafon.com/references) - [About us](https://www.nirafon.com/about-us) Open main navigation Close main navigation - [Home](https://www.nirafon.com/) - [Products](https://www.nirafon.com/products) Show submenu for Products - [NCSD](https://www.nirafon.com/ncsd) - [Pneumatic acoustic cleaners](https://www.nirafon.com/nirafon-pneumatic-acoustic-cleaners) - [Cases](https://www.nirafon.com/references) - [About us](https://www.nirafon.com/about-us) - [Contact us](https://26843427.hs-sites-eu1.com/contact-information) [Contact us](https://26843427.hs-sites-eu1.com/contact-information?hsLang=en) # NIRAFON Pneumatic Acoustic Cleaners ## The NIRAFON pneumatic acoustic cleaners are typically used for the cleaning of areas whose temperatures are lower than + 1000 °C. Our portfolio contains three pressurized air-driven acoustic cleaner models, named according to their basic frequencies (NI60 = 60 Hz, NI100 = 100 Hz, NI250 = 250 Hz). Together with the NCSD® they form the basis for our acoustic cleaning system engineering. In principle, the lower frequency cleaners provide more efficient cleaning results. However, number of other factors must be taken into account to choose the best overall cleaning solution. To name a few, these include the amount and composition of ash, cleaning temperature, noise limits, and dimensions of the space to be cleaned. For different space utilization, all models have a straight and a 90-degree curved horn profile version. Whatever the application, the customers don’t have to worry about what cleaners to choose. We always customize our systems to best suit our customers’ needs with over 30 years of experience.  ![Keeping boiler plant clean](https://www.nirafon.com/hubfs/Tuotekuvat/1-3.png "Keeping boiler plant clean") ## Keeping boiler plant clean Continuous cleaning during the process, automatic operation - Maintains plant efficiency at a high level - Cleaning without interrupting plant process/production - Cleans also the shadow areas - Minimize requirement of manual cleaning and downtime - These all lead to reduced emissions - Lower initial capital investment - Low operating cost - Reduces the need of water at the plant - Lesser space requirement The NIRAFON® system can be used in combination with existing cleaning system ![Cleaning without damaging](https://www.nirafon.com/hubfs/Tuotekuvat/4-1.png "Cleaning without damaging") ## Cleaning without damaging ESP-eliminating the weaknesses of rappers Remember: - Continual prevention of particle buildup - Better overall cleaning, also cleans hoppers and walls - No mechanical stress or damage caused by rappers - Hopper blockage eliminated - Steady material flow from hoppers – no sudden overloading - Low maintenance cost ![Saving energy and money](https://www.nirafon.com/hubfs/Tuotekuvat/2-Jun-28-2023-07-21-04-0757-AM.png "Saving energy and money") ## Saving energy and money Baghouse- overcoming compressed air pulse systems - Continuously clean bags, longer bag lifetime - The whole bag is cleaned – not just the upper part - Considerably lower air consumption - Less electricity use of fans, thanks to the lower pressure difference and reduced need for suction - Can be used in high temperatures and with moist air/exhaust gases - No wear to bags - no abrasion and flexing of the fibers ![Maintaining plant efficiency high](https://www.nirafon.com/hubfs/Tuotekuvat/3-3.png "Maintaining plant efficiency high") ## Maintaining plant efficiency high Keeping SCR systems clean - Prevent the catalysts become clogged and break down - Eliminate the risk of plant downtime - Ensure the correct operation of SCR systems, while maintaining high plant efficiency # Key features ![Nirafon key features](https://www.nirafon.com/hs-fs/hubfs/Ikonit/symbol23.png?width=120&height=120&name=symbol23.png "Nirafon key features") Heat transfer and other surfaces to be cleaned stay permanently clean and the process can continue without interruptions, rendering expensive shut-downs unnecessary. ![Nirafon key features](https://www.nirafon.com/hs-fs/hubfs/Ikonit/symbol24.png?width=120&height=120&name=symbol24.png "Nirafon key features") Acoustic cleaning drastically reduces the use of water at the plant, without causing corrosion or erosion. Sound won’t make any damage to structures. ![Nirafon key features](https://www.nirafon.com/hs-fs/hubfs/Ikonit/symbol22.png?width=120&height=120&name=symbol22.png "Nirafon key features") The acoustic cleaners require little space, the maintenance and operating costs are low. The refund time of the system is short. ![Nirafon key features](https://www.nirafon.com/hs-fs/hubfs/Ikonit/symbol25.png?width=120&height=120&name=symbol25.png "Nirafon key features") A tailor-made plan is always drawn up by NIRAFON Oy according to the application specific needs. # NIRAFON Pneumatic Acoustic cleaner in action # Devices - ![NI250](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/1-1.png?width=300&height=300&name=1-1.png) **NI250** - ![NI250-90](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/2-1.png?width=300&height=300&name=2-1.png) NI250-90 - ![NI100](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/3.png?width=300&height=300&name=3.png) NI100 - ![NI100-90](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/4.png?width=300&height=300&name=4.png) NI100-90 - ![NI60](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/5.png?width=300&height=300&name=5.png) NI60 - ![NI60-90](https://www.nirafon.com/hs-fs/hubfs/Tuotekuvat/6.png?width=300&height=300&name=6.png) NI60-90 # Downloadable content [![Brochure element ](https://26843427.fs1.hubspotusercontent-eu1.net/hub/26843427/hubfs/Ikonit/Brochure%20element%20(2).png?width=1200&length=1200&name=Brochure%20element%20(2).png)](https://www.nirafon.com/hubfs/nirafon_PNEUMATIC_tuotekortti_EN_A4_v3.pdf?hsLang=en) #### Pneumatic Acoustic Cleaner Brochure English [![Brochure element (2)](https://26843427.fs1.hubspotusercontent-eu1.net/hub/26843427/hubfs/Ikonit/Brochure%20element%20(2).png?width=1200&length=1200&name=Brochure%20element%20(2).png)](https://www.nirafon.com/hubfs/nirafon_PAINEILMA_tuotekortti_FI_A4_v3.pdf?hsLang=en) #### Pneumatic Acoustic Cleaner Brochure Finnish # References [![Adven and NIRAFON NCSD device](https://www.nirafon.com/hs-fs/hubfs/Adven/20241018_104356.jpg?height=200&name=20241018_104356.jpg)](https://www.nirafon.com/references/adven?hsLang=en) [Energy](https://www.nirafon.com/references/tag/energy?hsLang=en) ## [Adven](https://www.nirafon.com/references/adven?hsLang=en) [Nirafon](https://www.nirafon.com/references/author/nirafon?hsLang=en) 2025 First Approach Adven's boiler, commissioned in 2023, experienced significant challenges related to... [Read more](https://www.nirafon.com/references/adven?hsLang=en) [![Five pneumatic acoustic cleaners (NI60) from a Finnish company Nirafon were installed in 2019, in the economizer at Lumin’s Cogeneration boiler that provide steam and electricity to the Lumin’s Plywood Mill](https://www.nirafon.com/hs-fs/hubfs/Referenssit/Stora%20Enso/flygskoghallsbruk-1-1024x646.jpg?height=200&name=flygskoghallsbruk-1-1024x646.jpg)](https://www.nirafon.com/references/stora-enso?hsLang=en) [Forest](https://www.nirafon.com/references/tag/forest?hsLang=en) ## [Stora Enso](https://www.nirafon.com/references/stora-enso?hsLang=en) [Nirafon](https://www.nirafon.com/references/author/nirafon?hsLang=en) 2023 Crystallisable Cooking Chemicals A Nuisance In The Flue Gas Channel The heat transfer surfaces and... [Read more](https://www.nirafon.com/references/stora-enso?hsLang=en) [![](https://www.nirafon.com/hs-fs/hubfs/Taustakuvat/norafon_granfors-11(1).jpg?height=200&name=norafon_granfors-11(1).jpg)](https://www.nirafon.com/references/vatajankoski?hsLang=en) ## [Vatajankoski Sähkö](https://www.nirafon.com/references/vatajankoski?hsLang=en) [Nirafon](https://www.nirafon.com/references/author/nirafon?hsLang=en) 2023 Vatajankoski Electricity Has Been Able To Increase The Volume Of Biofuel Significantly With The... 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