Suction Rolls use a lot of power. Coldwater Tech Services (CTS) personnel
based in the US can audit your
suction rolls energy consumption and make recommendations that can save tens of thousands
of dollars in wasted power. Any suction roll experiencing short seal life or
requiring more than 0.3 bar (5 psi) air tube
pressure to maintain vacuum in the roll is a good candidate for the service, as the suction
roll seal assembly can exert significant braking forces on the roll, as described in
TAPPI JOURNAL (Energy Savings for Suction Rolls).
Regardless of the seal supplier, improper application and operation of the suction roll seal
assembly can significantly impact power consumption, decrease seal life, and shorten
operating intervals.
CTS personnel based in the US and Sweden
offer mill wide contracts to inspect all suction rolls in all machines over a 1 to 2
year interval, or single roll inspections as needed. Services are performed wherever the
roll is disassembled, and generally consist of the following:
- A multi-plane bore profile of the shell inside diameter.
- Measurements of the suction box to establish the relationship between the seals and
the centerline of the roll.
- An inspection of air loading tubes and/or springs for proper size and operation.
- A calculation of the proper sizes of the seals and end deckles to match the shell and minimize
horsepower consumption.
- Our recommendations will make most suction rolls operate with full vacumm at 5 psi (0.3 bar)
or less air loading tube pressure.
- Training of mill personnel in suction roll operation, maintenance, and problem solving is
also available.
- Drive load savings in excess of 100 amps have been acheived.
- Operating intervals of two years or more are possible in well-maintained rolls.
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Call any Coldwater location to schedule an on-site inspection of the shell, seals, deckles, and loading
mechanisms, and engineering of optimum seal and deckles sizes to match your roll's current condition.
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 Brochure
(Letter Size)
(A4 Size)
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