WTD-02 Taber Stiffness Tester

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Overview

The WTD-02 Taber Stiffness Tester is designed to assess the bending resistance of paper and paperboard using a Taber-type testing method. This technique is especially relevant for papers with higher grammage. During testing, the device measures the bending moment needed to deflect the free end of a vertically clamped specimen, which is 38 mm wide, by 15° under a specified load over a bending length of 50 mm. For materials that may suffer permanent deformation when bent 15°, a reduced bending angle of 7.5° can be employed. The results for bending resistance are quantified in millinewton meters (mN·m).

Testing Methodology

The procedure involves bending a sample of predetermined dimensions to a defined angle. The resulting bending moment is then indicated on the instrument's scale.

Compliance Standards

The tester adheres to various industry standards, including ASTM D5342, ASTM D5650, ASTM D3301, BS ISO 2493.2, ISO 2493.2, JIS P8125.2, TAPPI T489, TAPPI T566, GB/T 2679.3, and GB/T 22364.

Key Specifications

Test range	1~500 mN.m (in 7 ranges)
Indication error	±2%
Bending length	50mm±0.1mm
Testing speed	（200°±20°）/min
bending angle	15°±0.3° and 7.5°±0.3°
Sample size	38*70 mm
Dimension	220230350mm
Net weight	15kg
Power	AC 220V 50Hz