Dynamic strength & weak spots
Continuous yarn testing under controlled tension.
LH-450 / CONSTANT TENSION TESTER
CTT-EOne platform.
Multiple perspectives.
A modular yarn testing instrument with electronic servo drive. Explore yarn behavior under controlled, dynamic conditions.
CTT-E LH-450
Electronic drive · Modular test configurations
20–500 m/minTest speed¹
2–700 gInput tension¹
10+Tests with available modules¹
01 / TEST MODULES
Build around
your application.
The appropriate module depends on the material and the property to be measured. Modules and accessories are configuration-dependent.
Elongation & draw ratio
Dynamic extension and draw-ratio measurements.
Thermal shrinkage
Dimensional change with suitable heater options.
Yarn-to-pin friction
Metal or ceramic contact pins.
Yarn-to-yarn friction
Friction when moving yarn contacts itself.
Yarn abrasiveness
Wear through a standard wire.
Lint generation
Collection of released fibres for mass evaluation.
Appearance & diameter
Camera profiles, diameter statistics and blackboard simulation.
Thick places, thin places & neps
Defect classification by diameter and length.
Hairiness
Optical analysis with the camera module.
Entanglement & skip length
Count knots and measure missing-entanglement sections.
Broken filaments & textured loops
Camera tests for filament and air-textured yarns.
Unwinding tension
Elastomeric-yarn testing with the appropriate feeding setup.
Abrasion and friction
03 / TECHNICAL OVERVIEW
The details that matter.
ModelLH-450 CTT-E
Test speed20–500 m/min¹
Input tension2–700 g · four tension arms¹
MaterialsFilament, spun and technical yarns; configuration-dependent
Dimensions700 × 1050 × 700 mm¹
¹ Values from the linked LH-450 brochure. Specifications are subject to change. Confirm current configuration and operating ranges before ordering.
Download full brochure ↓ PDF · EN