Friction testing tribometer ATTRIFIL III | 233C

Product overview
Computerised instrument for automatic measurement of the coefficient of friction (COF) of yarns. Recommended for evaluation of wax or paraffin and for control of the waxing process. Designed for unattended execution of multiple tests on a single yarn package and for compliance with standard test methods.

Main features

• Automatic execution of multiple tests on a single package of yarn without operator attendance.
• Continuous control of test parameters affecting the friction coefficient, including input pretension (value and tolerance) and yarn speed, adjustable up to 50 cN and from 50 to 300 m/min respectively.
• High-precision electronic tensiometers monitoring incoming (T1) and outgoing (T2) yarn tension before and after passage around the metallic friction pin with a 180° wrapping angle.
• Pre-selection of the yarn length to be measured.
• Option to pre-select the yarn length between consecutive measurements as an alternative to random testing.
• Integrated software for instrument management, parameter configuration, data processing and storage.
• Print-out of test results, statistics, graphical representation of single-test COF and average COF.

Reference Standards
ASTM D3108

Accessories

• Auto Cop Changer for automatic testing of up to 24 different bobbins (Code 299A) — Optional
• Creel required with Auto Cop Changer (Code 201) — Optional

Technical specifications

• Automatic multiple-test execution on a single yarn package without operator attendance
• Input pretension: adjustable (value and tolerance) up to 50 cN
• Yarn speed: adjustable from 50 to 300 m/min
• High-precision electronic tensiometers monitoring incoming (T1) and outgoing (T2) tension
• Metallic friction pin with 180° wrapping angle
• Pre-selection of yarn length to be measured and option for pre-selection between consecutive measurements
• Software for parameter management, data processing and storage
• Print-out, statistics and graphical representation of single-test COF and average COF
• Reference standard: ASTM D3108