ABB

Product Background

R&D Background

ABB’s Pressductor® technology was invented and patented in Sweden in 1954, based on magneto‑elastic (magnetostrictive) effect. When mechanical force is applied to the special alloy sensor core, the magnetic permeability of the material changes, generating an electrical signal proportional to applied forceABB Group.

PFTL101B‑20kN is the horizontal pillow‑block type for medium‑range tension measurement (2‑20 kN). It is designed for heavy‑roll, high‑speed continuous web‑processing lines. Solid stainless‑steel monoblock construction, high overload tolerance, strong immunity to transverse lateral forces, ideal for harsh industrial environmentsABB.More products: www.plcva.com

Hardware highlights:

• Rated load: 20 kN; allows up to 5‑times overload without permanent deformationABB Group
• Solid stainless‑steel body, IP66/IP67 protection rating, vibration‑resistant, dust‑and‑moisture‑proof
• Working temperature: ‑10 ℃ ~ +105 ℃; high‑speed dynamic response for fast‑changing tension fluctuations
• Requires matching control unit PPXC141 to process raw sensor signal and output standard 4‑20 mA analog signal to DCS/PLC

Current Status This product is still in production; brand‑new original units are available. Refurbished and used spare units are also available on the aftermarket for legacy production‑line replacementABB Group.

PFTL101B‑20.0kN

Core Functions

Note: This is a passive force‑sensing transducer. It does not perform control logic. It measures mechanical tension force and sends raw signal to ABB PPXC141 control unit for signal conditioning, then transmits standard analog signal to PLC/DCS for closed‑loop tension control.

1. Horizontal web‑tension force measurement (Pressductor magneto‑elastic principle) Measures horizontal component of strip/web tension. It can exclude the dead‑weight of the roll itself, only measure the tension force of moving material (paper, metal strip, film), achieving high‑precision tension detection for high‑speed web‑processing linesABB.
2. High overload & lateral‑force resistance Robust solid‑block stainless‑steel structure. Tolerates heavy transverse and axial loads; will not produce measurement error under heavy‑roll weight and mechanical vibration, suitable for high‑speed continuous production linesABB.
3. Dynamic real‑time force sensing Fast dynamic response, captures rapid tension variations in real‑time, supports closed‑loop tension‑regulation control for winding, unwinding, calendering and coating processes.
4. Signal output cooperation with control unit Raw sensor signal is sent to PPXC141 control unit, which converts it into standard 4‑20 mA analog output signal for PLC/DCS system. The load cell itself is a passive sensing element without built‑in signal‑conditioning circuit.
5. Harsh‑environment durability High‑protection housing, resistant to oil, coolant, dust, humidity and mechanical vibration, suitable for mill‑grade heavy‑duty industrial sites.

Hardware Interfaces

• Cannon‑type connector for signal cable connection (standard version PFTL101B; BE/BER variants have fixed armored cable)
• Mounting holes for pillow‑block installation under the measuring roll bearing housing
• Requires external PPXC141 control unit for signal processing and power supply

Main Applications & Deployment Sites

Core Application: Horizontal tension‑force measurement for continuous moving web/strip material, used for closed‑loop tension control in heavy‑duty industrial production linesABB Group.

1. Paper‑making industry Paper machines, calenders, coaters, winders/unwinders; measure tension of paper web for paper‑machine speed and tension control, dryer‑section web‑tension monitoringABB Group.
2. Metal processing & rolling mills Steel, aluminum, copper strip processing lines, annealing lines, pickling lines, galvanizing lines; strip‑tension measurement for rolling, slitting and winding‑unwinding processesABB Group.
3. Film & plastic processing Plastic film, foil extrusion, coating and winding lines; web‑tension monitoring for flexible‑material production.
4. Textile & non‑woven‑fabric industry High‑speed textile and non‑woven‑fabric production lines, tension‑control for fabric web processing.
5. Rubber & composite‑material production Rubber sheet, composite‑material continuous processing lines for tension‑feedback control.

Key distinction summary for reference:

• PFTL101B‑20KN (3BSE004203R1): Pressductor pillow‑block tension load cell, mechanical force‑sensing transducer for web‑strip tension measurement.
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