EMA felt and wire guide control units

EMA felt and wire guide control units are equipped with electromotive adjusting

elements with special motors.Advantages compared to pneumatic systems are a.o.:

• highest sensitivity in the adjusting sleeves (up to 1/10 mm)
• clear separation between power element and control system
• long run-time without adjustment (in practice run-times of several hours were achieved, in which the adjusting roll was not adjusted)
• guaranteed convergence at twin wires
• clear improvement of the feeding process at fast runners
• absolutely straight web edge

Adjusting element

The electromotive adjusting element consists of a robust cast casing with a slide driven by a trapezoidal spindle. The adjusting element is optionally available for use in wet end sections of stainless steel DIN 1.4460 or in dry sections consisting of a steel case equipped with a coating system. The adjusting drive consists of a three-phase cage motor with increased resistance rotor, which means that the thermal stress in switching operation is extremely low.