ABBP PFVL142R-25MN  Ring-shaped (circular) load cell

ABBP PFVL142R-25MN  Ring-shaped (circular) load cell

ABB PFVL142R-25MN represents the pinnacle of heavy-duty force measurement technology within the Millmate Roll Force System (MRFS) family.

As an annular (ring-shaped) load cell with a massive 25 MN (2.500 metric ton) capacity, it is specifically designed for the world’s most powerful rolling mills where precision and durability under extreme stress are non-negotiable.

2. Unique Product Description

The PFVL142R-25MN is not a typical load cell; it is a “mill-hardened” sensor that utilizes the Pressductor® principle.

While traditional load cells use delicate, glued-on strain gauges that can peel or drift under heat and moisture, the Pressductor sensor is a solid block of steel.

By measuring changes in magnetic fields within the steel core when compressed, it provides a high-power electrical signal that remains stable even in the presence of heavy steam, oil, and electromagnetic interference.

3. Product Advantages and Features

Massive Load Handling: Specifically designed for the primary stands of hot strip mills and heavy plate mills.

Unrivaled Durability: Capable of withstanding the extreme shock loads of “cobbles” and mill vibrations without loss of calibration.

High Output Power: The sensor produces a strong signal, making it immune to electrical noise from high-voltage mill motors.

Stability Over Decades: Known for a service life that often spans 30+ years with zero maintenance.

Compact Annular Form: The ring design allows for integration around mill screws or within hydraulic cylinders where space is at a premium.

Select as follows:

•    Determine    the    load    for    which    the    load    cell    is    to    be    used

and choose from the table the next higher value in the

standard range.

•    Determine    either    the    width    or    length    of    the    load    cell    and

calculate the other dimension using the following formula:

L x W x 0.0001 = F

L

load    cell    length    in    mm

W = load cell width in mm

F

nominal    load    of    load    cell    in    MN

(taken from the standard series in the table)

The width and length are rounded up to the next higher value

in the table.

When ordering, please state:

•    Type    designation

•    Nominal    load

•    Width    and    length

Example

With    a    nominal    load    of    14    MN    and    a    width    of    370    mm    the

length    will    be    390    mm    (rounded    up    from    378    mm).

PFVL    141V,    14    MN

L=390    mm,    W=370    mm

Nominal load (Fnom

) is the load for which the load cell is di

mensioned and calibrated, i.e. the sum of the stationary load

and the maximum measured load in the measuring direction.

Accuracy class is defined as the maximum deviation and is

expressed as a percentage of the sensitivity at nominal load.

This includes linearity deviation, hysteresis and repeatability

error.

Linearity deviation is the maximum devi ation from a straight

line    drawn    between    the    output    values    of    zero    and    nominal

load, related to the nominal load.

Hysteresis is the maximum deviation of the output signal at

the    same    load    during    a    cycle    from    zero    to    nominal    load    and

back    to    zero,    related    to    the    sensitivity    at    nominal    load.    The

hysteresis is proportional to the cycle.

Repeatability error is defined as the maximum deviation

between repeated readings under identical conditions. It is

expressed as a percentage of the sensitivity at a nominal load.

Compression is the total reduction in the height of the load

cell    when    the    load    is    increased    from    zero    to    nominal    load.

Zero point drift is defined as the drift in the output signal

when there is no load on the load cell.

Sensitivity drift is defined as the drift in the output signal at

nominal    load,    excluding    the    zero    point    drift.