PrimeRoll – Solutions tailored to the papermaker´s needs

ANDRITZ PrimeRoll technologies, combined with PrimeCal calenders, are the key to success for state-of-the-art paper and board qualities.

The ANDRITZ PrimeRoll technologies are combined with all PrimeCal calenders to produce state-of-the-art paper and board qualities.

PrimeRoll edge trim

Hard- or soft-covered, deflection-controlled rolls form a uniform nip with the heated roll. The PrimeRoll MHV technology ensures exact CD caliper control over the full width, even at line loads of approximately 5 N/mm. Thus, no external profiling devices are needed.

Roll technology - product range

PrimeRoll S

Advantages

Features

Cost-efficient
Uniform nip pressure
over the full width
Easy maintenance

Pressure chamber and return oil chamber separated by longitudinal seals and end seals
Stationary roll shaft
Roll shell rotates on outer spherical roller bearings
Pneumatic/mechanical differential pressure regulator

PrimeRoll S EdgeControl

Advantages	Features
Creates a uniform width profile by using profiling elements at the edges Easy maintenance	Stationary roll shaft Roll shell rotates on outer spherical roller bearings Pneumatic/mechanical differential pressure regulator

PrimeRoll MHV

Advantages	Features
Substantial effect in positive and negative direction Simple and advanced technology Roll shapes are always geometrical Safe operation Statically pre-stressed by the ring chamber pressure Easy maintenance	Each element is controlled individually for exact cross-direction (CD) caliper control Ring chamber pressure allows positive and negative profiling One-row design with sealing elements