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Help CenterABB PFTL101B-20KN 3BSE004203R1 Pressductor Load Cell
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I. Basic Information
Model: PFTL101B-20KN | Part Number: 3BSE004203R1Product Positioning: ABB Pressductor® magnetoelastic pillow-type horizontal tension load cell, the core measuring component of Millmate tension measurement system. Based on magnetoelastic working principle, it performs real-time horizontal tension acquisition for web materials and connects with Millmate transmitters as well as 800xA DCS / AC800M controllers to realize closed-loop tension regulation. It is a mainstream replacement spare part for technical renovation and stock maintenance of existing production lines in papermaking, metallurgical cold rolling and film manufacturing industries.
Brand: ABB | Origin: SwedenProduct Type: Horizontal pillow-style tension transducer with an integrated solid stainless steel pillow structure for unidirectional horizontal load bearing.Rated Measuring Range: 20kN (≈2040kgf)
Compatibility: ABB Millmate signal conditioning modules, PFCL transmitter units, AC800M/800xA DCS and legacy Advant control systems; applicable for paper machines, cold rolling mills, BOPP film & aluminum foil coating and winding equipment.
Mounting: Recessed installation underneath roll bearing housings; Overall dimensions: approx. 315(L)×135(W)×92(H) mm, Net Weight ≈23kg. The transducer is integrally forged from 316 stainless steel with full laser-sealed welding, rated IP67 ingress protection. The fully anti-corrosion housing resists moisture, acid and alkaline erosion, suitable for humid wet-end papermaking sections and high-temperature oily metallurgical environments.
Standard Configuration: Multiple built-in magnetoelastic induction coils, round aviation plug terminals, full-range integrated hardware temperature compensation components and pillow stop structure against lateral overload.
II. Technical Specifications
(1) Mechanical & Accuracy Parameters
Rated Capacity: 20kN (unidirectional horizontal loading)Safe Overload: 150% FS (30kN); Ultimate Breaking Overload: 500% FS (100kN)Accuracy Class: 0.5 FS; Non-linearity ＜±0.05% FS, Repeatability Error ＜±0.05% FS, Creep ≤0.03% FS per 10 hours.Output Sensitivity: Millivolt-level differential magnetoelastic signal (requires dedicated excitation power supplied by Millmate; direct connection to 4~20mA circuit is not allowed).Deformation Under Load: Minimal mechanical deflection featuring high rigidity, outstanding shock resistance and anti-eccentric-load performance.
(2) Electrical Parameters
Excitation Power: Supplied centrally by ABB Millmate transmitter unit via standard industrial-frequency excitation.Output Signal: Low-level differential analog voltage, which is converted into 4~20mA signal or fieldbus data via Millmate for DCS access.Wiring: Standard multi-core shielded aviation connector with single-point shield grounding to suppress industrial EMC interference.
(3) Environmental Specifications
Continuous Operating Temperature: -30℃ ~ +70℃ with onboard hardware temperature compensation; Temperature Drift ≤0.01% FS/℃.Storage Temperature: -40℃ ~ +85℃; Ambient Humidity: 5%~95% RH non-condensing.Compliant with Level 4 IEC61000 EMC industrial immunity standard to withstand electromagnetic radiation from frequency converters and high-power motors in steel plants.
III. Key Features
Magnetoelastic Design Without Strain Gauges for Extended Service LifeConverts mechanical load into electrical signals via steel magnetoelastic deformation with no fragile strain gauges. Service life is 3~5 times longer than conventional strain-gauge load cells, reducing frequent calibration and replacement under harsh wet papermaking and metallurgical working conditions.
Dedicated Pillow Horizontal Tension MeasurementEmbedded directly under roll bearing seats to precisely measure horizontal component force generated by wrapped web materials and eliminate disturbance from vertical load, which becomes the standard mounting solution for paper machines and rolling mills.
Fully Sealed IP67 Anti-Corrosion HousingLaser-welded stainless steel construction delivers waterproof, dustproof performance and excellent resistance against weak acid papermaking white water and metallurgical rolling emulsions, ensuring stable operation on wet-end and pickling production lines.
Full Compatibility with ABB DCS PlatformsProcessed signals from Millmate are transmitted to AC800M/800xA, enabling real-time tension display, over-limit alarming and automatic winding inverter speed adjustment on HMI to form fully automatic closed-loop tension control.
Superior Anti-Lateral-Load & Anti-Shock CapabilityBuilt-in pillow limiting structure protects the sensor from damage caused by instant strip-break impact and roll eccentric side load, ideal for high-speed production lines with maximum running speed up to 1200m/min.
IV. Operating Principle
Excitation power fed from Millmate transmitter → Internal iron core compressed by horizontal web tension → Directed variation of steel magnetic permeability → Induction coils output low-level differential electrical signals.
Downlink Logic: AC800M DCS issues target tension setpoint → Millmate compares set value with measured feedback → Output control signal to adjust traction / winding drive motors.
Uplink Logic: Raw tension measured by sensor → Signal amplification and conversion inside Millmate → 4~20mA or fieldbus data uploaded to 800xA for real-time display and pop-up overrange alarms.
Fault Handling: In case of open/short circuit of the sensor, Millmate detects abnormal feedback, triggers local & remote DCS fault alerts and activates interlock speed reduction for production line protection.
V. Application Scenarios
Papermaking Industry: Roll housing tension monitoring for dryer sections, calenders, coaters and rewinders of large paper machines; preferred choice for corrosive wet-end environments.
Metallurgical Industry: High-tension measurement for payoff & take-up sections of aluminum/copper foil cold rolling, pickling, annealing and galvanizing lines.
Film & Plastic Industry: Closed-loop high-precision tension control for BOPP/PET optical film and lithium battery electrode coating & slitting machines.
Cable & Textile Industry: Tension monitoring for heavy-duty power cable stranding and nonwoven fabric drafting equipment.
Retrofit Spare Parts: Drop-in replacement for legacy PFTL series during Advant-to-800xA DCS upgrade projects.
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