79-25 Bending Resistance Tester

TMI Bending Resistance Tester & Optional GraphMaster™ Software

Bending Resistance Tester photo.

INTRODUCTION

Model 79-25 is a user-friendly microprocessor controlled instrument to determine the bending resistance of paper, paperboard, plastic film, medical tubing, and wire. Bending stiffness is a characteristic associated with the rigidity of a material. This property is related to the modulus of elasticity of the material's stiffness. Our Bending Tester was originally developed to produce a more concise, consistent measurement for the paper industry. This property is now used in a variety of industries including personal products, paper, flexible films, packaging and non-wovens.

Our two-point method secures the specimen into a pneumatic clamp and bends the sample up to 90° against a force transducer.

What makes our Bending Resistance instrument so unique is its versatility and accuracy. Bending forces are measured at selectable bending angles from 5.0 to 90°. The instrument is available with a 100 or 1000 gram precision load cell. The advanced data acquisition system senses forces down to 0.5g. Materials can range from 5 to 50mm in length, up to 2.5mm thick.

BENEDITS

  • Very flexible for performing different types of tests and for different standards.
  • Pre-certified weights and sample cutter options
  • Ability to add special formulas to meet unique bending stiffness requirements
  • Competitive advantages for accuracy and usability
  • Motorized testing and pneumatic clamping eliminates operator influence

SPECIFICATIONS

  • Choice of 10N or 1000mN load cell
  • Min. force sensitivity: 0.5mN with 1000mN load cell
  • Selectable bending angle 5.0-90° and test length 5-50mm
  • Meets ISO 2493, AS/NZ 1301-4535, BS 3748, DIN 53121, SCAN P29, TAPPI T556
  • RS232 serial data output, printer output and analog signal output
  • Can be directly calibrated to traceable National standards

FEATURES

  • Direct sample to load cell contact for accurate measurement
  • Easy selection of test parameters from a comprehensive range through a setup menu
  • Motorized test length setting
  • Pneumatic clamps with fast release provide consistent clamping pressures for fast, repeatable results
  • Large, clear display showing peak value and angle
  • Load cells are fitted with overload protection
  • Direct data output via RS-232 to printer or optional GraphMasterTM analysis software
  • Calculates Taber Stiffness, Youngs Modulus, Gurley Stiffness units.
  • Can be directly calibrated to traceable national standards

STANDARDS

ISO 2493, AS/NZ 1301-4535, BS 3748, DIN 53121, SCAN P29, TAPPI T556
Can be directly calibrated to traceable national standards

INSTRUMENT SIZE

  Depth:   330 mm (13 in.)
  Height:   180 mm (7 in.)
  Width:   330 mm (13 in.)
  Weight   15 kg (33 lb)

CONNECTIONS

  Electrical:   Specify voltage requirements when ordering
  Air:   (instrument quality) 400-600 kPa700 kPa (90 psi) max. supply pressure

INCLUDED ACCESSORIES

  • Clear plastic table for dead weight calibration

OPTIONAL ACCESSORIES

  • Certified dead weight set to meet ISO requirements
  • Sample Cutter
  • Printer

ORDERING INFORMATION

  Load cell   Catalog Number
  10 N   79-25
  1,000 mN   79-25 (specify 1,000 mN)

Call Us Today

For additional information on TMI Products and Services, or to learn how Testing Machines can help your company profit through testing, please call us at 1-800-678-3221, or e-mail info@testingmachines.com.

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PDF Product Data Sheet:

PDF Bending Resistance Tester
DOC Bending Resistance Tester

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