Unwinding Force Tester – Computerised
Model KPUF-100 (A) | Roll Unwind Force Testing Machine
The Katpot Systems Peel Unwinding Force Tester – Model KPUF-100 (A) is designed to measure the steady unwind force required to pull adhesive tapes, label rolls and PSA materials from the roll under controlled conditions.
It simulates the real behaviour of tape rolls during slitting, rewinding, laminating, labelling, and manual application.
With a sturdy mechanical drive, precision load cell and digital force indication, the machine helps manufacturers detect issues such as blocking, jerks, excessive tack, inconsistent coating, or uneven winding tension.
This tester aligns with FINAT-based unwind force practices commonly used in the adhesive tape and label manufacturing industry and is ideal for QC labs, coating lines and incoming material inspection.
Advanced Features
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Measures steady unwind profile across full roll length.
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Detects sudden torque fluctuation caused by tight winding.
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Enables screening of blocked zones.
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Suitable for real roll length input.
Product Importance
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Helps evaluate unwind effort needed during machine application.
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Detects blocking between layers due to excess adhesive entrapment.
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Ensures roll structure stability during storage.
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Eliminates curl & misfeed issues during FFS systems.
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Reduces stoppage on sticker dispensing machines.
Technical Specifications
| Model No | KPUF-100 (A) |
|---|---|
| Test Type | Unwind Force Measurement |
| Load Cell | High-accuracy strain gauge |
| Force Capacity | 0–10 kg (other capacities optional) |
| Accuracy | ±0.5% of reading |
| Resolution | 0.1 g |
| Test Speed | Fixed 300 mm/min (variable speed available on request) |
| Roll Core Compatibility | Standard 3-inch core (1", 2", 6" optional) |
| Maximum Roll Outer Diameter | According to sample core size |
| Fixture | Precision mandrel with smooth rotation |
| Material Compatibility | PSA tapes, label rolls, film rolls |
| Compliance Reference | FINAT FTM-9 type unwind test practice |
| Power Requirement | 230 V AC, 50 Hz |
| Machine Frame | Heavy-duty MS/Aluminium frame, vibration-free design |
| Graph Output | Real-time Load vs Time / Load vs Distance |
| Software Reports | PDF & Excel export |
| Calibration | Internal calibration; NABL certificate available |
