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Stiffness Tester for Paper/Corrugated Cardboard

Stiffness Tester for Paper/Corrugated Cardboard


Paper Stiffness Tester















A Stiffness Tester is a device used to measure the stiffness or rigidity of paper, cardboard, and ther flake non-metallic materials which thickness is less than 2mm. It is used to determine the bending resistance of these materials, which helps in assessing their suitability for various applications.

Optional accessories

Optional accessories:
To perform 15°stiffness test and 90°crease stiffness test, configuration is also required: cardboard stiffness sampler
Sampling size: 70×38±0.1 mm mm (stiffness sample)
Sampling size: 38×36 mm (crease stiffness sample)
Sampling thickness: <1mm

Technical Parameters

Item Description
Model TX-UEZ6230G
Measuring range (20 ~ 10000) mN (the equivalent bending moment is (1 ~ 500)
Resolution 0.1mN
Indication accuracy Indication error ± 1%
Indication variability ≤ 1%
Bending length: 50mm; 25mm; 10mm; (±0.5 mm)
Bending angle arbitrary setting between (1~20)°
Display 4.3” color touch screen
Printer Thermal printer, high-speed and silent printing;
Display Touch LCD screen
Communication output RS232(standard)/USB (optional);
Product Dimensions (320 × 300 × 300) mm (L*W*H);
Net weight 16 kg
Power Supply AC220V 50/60Hz


ISO 5628, ISO 2493
JGB/T 23144


  1. Stiffness testing can be conducted at arbitrary settings between 7.5° and 15°.
  2. The test time is adjustable within a range of 3 to 30 seconds.
  3. Test angle variations are automatically controlled by a motor, which improves measurement efficiency and reduces human influence.
  4. Three types of bending length tests can be performed, with options for 50mm, 25mm, and 10mm.
  5. The testing device includes an automatic zeroing function, eliminating the need for manual sample checking prior to testing.
  6. Measurement statistics, printing capabilities, and adjustable measurement times are available.
  7. Upon completion of the test, the device swiftly returns to its initial position at a speed that can be set between 1 and 12.
  8. User interface features a color touch screen, supports both Chinese and English operating systems, and has the ability to communicate with upper computer software (sold separately).
  9. After the test is completed, return to the initial position at high speed, and the return speed can be set arbitrarily between (1 ~ 12);
  10. The human-machine interface adopts a color touch screen, Chinese and English operating systems, and can communicate with the upper computer software (purchased separately).