ABB Millmate Roll Force System Health check Service duration

Service duration

Typically 1 day on-site to inspect the roll force measurement installation, evaluate and give

recommendations if further actions are needed.

During at least 4 hours, load cells and pressure plates need to be accessible outside the mill stand

for inspection and testing. This can be done during a planned maintenance stop, or by the customer

exchanging to spare load cells and spare pressure plates in the mill stand in advance.

Additional time for travel, preparation, analysis and reporting is needed.

Note: Free access to the mechanical parts and the mounting surfaces 

in the actual mechanical installation is essential for achieving

the expected goals with the Health Check during the site visit. The

accessible parts required for different load cell types and positions

in the mill stand are listed below.

Installations with rectangular load cells below the lower back up roll or above the upper back up roll:

Accessible parts: Mounting surfaces in the mill stand, the sledges if present, the rockers,

the pressure plates closest to the load cells and

intermediate mating plates if present.

Installations with circular load cells under the screw-down or hydraulic cylinder:

Accessible parts: Mounting surfaces above the upper back up roll

bearing chuck, plain or tapered thrust roller bearings, pressure plates

closest to the load cells and other intermediate mating plates if present.

Installations with annular load cells above the screw-down inside the mill stand:

Accessible parts: Mounting surfaces of the screw-down nut, plain or

tapered thrust roller bearings, pressure plates closest to the load cells.

The parts and mounting surfaces mentioned above need to be accessible

before the start of the work or otherwise the investigation of

them need to be planned for in advance so that it can be performed

later during the site visit.