Oji Paper selects ProJet to supply seven dryer fabric cleaners for several paper machines throughout Japan, an add-on to ProJet power cleaners already successfully installed on many Oji PMs; cleaners, pumps, control panels to be delivered in late 2022

Sample article from our Pulp & Paper Industry

August 23, 2022 (press release) –

ProJet received an order for a total 7 Power Cleaners (dryer fabric cleaners) from Oji Paper for several paper machines throughout Japan. The order is a spin-off of the successful installation of Power Cleaners that were already installed on many paper machines of Oji. The value of the order will not be disclosed. The order was received late July and will delivered late 2022.

The Cleaners will be supplied along with all auxiliary equipment, pumps, control panels, etc. Installation and start-up will be performed by ProJet’s subsidiary in Japan, ProJet Japan Co. Ltd. Based in Tokyo.

Of course, all Power Cleaners will be ProJet’s Power Cleaner 2.0, the upgraded version. The upgrade consists of a smaller cleaner head, more nozzles at higher pressure and improved vacuum/discharge system. The combination of all these improvements is an increased cleaning efficiency, exactly what Ojineeded for its Dryer Fabrics. 

Before and after cleaning

The Power Cleaner cleans the Dryer Fabrics continuously, 24 hours a day, as long as the machine is running. Older technologies are operated in batch cleaning mode, allowing the dryer fabrics to get dirty first, losing permeability, and then trying to restore that permeability again. This leads to uneven permeability profiles over time, mostly leading to paper quality issues and more broke. The above graph shows the advantage of continuous cleaning, leading to a more stable moisture profile, less broke and longer lifetime of fabrics. Dryer fabric contamination is on the rise due to the increasing use of secondary fibres, recycling of coated broke, increasing use of sheet fillers, an increased use of recycled mill water supplies, and the increased use of process chemicals.

Applying a ProJet Cleaning Solution guarantees consistently clean dryer fabrics from beginning to end of usable dryer fabric life. Consistently clean fabrics deliver the following significant manufacturing advantages:

·No chemical cleaning will be required to maintain fabric cleanliness.       

·No shutdowns will be required for fabric cleaning. This will provide increased manufacturing productivity and profitability. 

·Maintaining consistently high dryer fabric air permeability increases available dryer capacity. 

·Better CD moisture profiles will be maintained. 

·Sheet curling, caused by uneven drying, will be eliminated. 

·Dryer fabric life will be substantially improved. 

·Much less contamination will be deposited on dryers, doctor blades, and felt rolls.

ROI calculator:

ProJet understands that each client application is unique. For that reason, ProJet developed an automated ROI-calculator that will be applied to each application and produced paper grade. By contacting info@projetinc.us or info@pro-jet.nl ProJet will perform a no-charge ROI calculation of any Forming Fabric, Press Felt or Dryer Fabric application. After inputting the process parameters provided by customers, they will be provided with a ROI-Analysis of each specific application and investment justification

ProJet Technologies, www.pro-jet.nl and www.projetinc.us

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Dan Rivard
Dan Rivard
- VP Market Development -

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