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 Complete Project Engineering in the area of Mechanical, Civil, Instrumentation & Utilities.... |
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Our Team |
 Due to the unswerving commitment on part of our team, we have been able to carve a niche for ourselves in the industry... |
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 Opened water box is a weldment made of material s.s 304. It is fixed to beams on stands enabling its height adjustment with respect to foils wear and tear.
It is equipped with 5 - 7 foils with wide of 65 mm. The foils scraping angle is ranging from 0,5° to 1,5°. The foils can be made of polyethylene or ceramicsof your company choice. All the foils are fixed on the box walls by means of T-shaped grooving.
Machine design and work safety are in compliance with TAPPI standards.
Advantages:
- Height and longitudinal adjustability
- Simple foils replacement
- Stress realeased body
- Grinded and duly buffed
Forming Foils:
Supporting the forming fabric on a paper machine is a series of drainage elements designed to form and drain the stock slurry that is delivered from the headbox. At this point, the stock slurry is 99% water and 1% wood fiber.
The initial part of the forming zone is critical in determining the final characteristics of the sheet of paper. The first drainage element in the process is aptly called the forming board. Its placement relative to the headbox has a major impact on how the initial fibers are formed on the top surface of the forming fabric.
The structural integrity of the forming board is a significant consideration in its design because it must withstand the impact of thousands of gallons of water per minute. It must withstand this hydraulic load without vibration or deflection. Through the years, Johnson Foils has manufactured forming boards for the most demanding applications, including some of the widest and fastest paper machines in the world.
Beyond the forming board is a series of drainage elements used to form the sheet of paper. The type of element depends on the grades of paper being produced. On white paper applications, printing, writing, newsprint and other publication grades, high frequency foils are used to initiate and control beneficial stock activity during the sheet forming process.While the papermaking foil was not invented by Johnson Foils, we are the undisputed leader in the refinement of its design and application. Beginning with the patented T-bar mount, followed by the placement of foils on harmonics and, most recently, the high frequency forming concept, all have been major developments by Johnson Foils.
Unique foil designs are also used for specific applications. One such blade is the agitator. The agitator is generally used on paper grades containing a high percentage of recycled fiber or mixed waste. The positive pressure pulses developed across the blade minimize sheet sealing tendencies during the forming process. |
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Our Value |
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37, Ananddham Society,
Wonder Point, Amraiwadi,
C.T.M. Ahmedabad (Gujarat).
Telephones:
+91 9879 793222
+91 9998 653233
E-mail: info@excelpaper.com
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