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79-56 Bending Resistance Tester

Bending resistance tester unit. From Messmer Messmer Büchel BV, a Testing Machines Inc Group of Companies brand.







Model 79-56 is a user-friendly microprocessor controlled instrument to determine the bending resistance of paper, Paper, 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.

79-25 Messmer Buchel Bending measuring the force to bend a test piece to a predetermined angle.
Bending resistance and stiffness is used in many converting companies and is important in handling packaging products


Load cell:  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

Output: RS232 serial data output, printer output and analog signal output

Depth: 330 mm (13 in.)

Height: 180 mm (7 in.)

Width: 330 mm (13 in.)

Weight: 15 kg (33 lb)

Electrical: Specify voltage requirements when ordering

Air: (instrument quality) 400-600 kPa700 kPa (90 psi) max. supply pressure

Features & Benefits

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

Can be directly calibrated to traceable National standards

Meets ISO 2493, AS/NZ 1301-4535, BS 3748, DIN 53121, SCAN P29, TAPPI T556

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 GraphMaster™ analysis software

Calculates Taber Stiffness, Youngs Modulus, Gurley Stiffness units.

Can be directly calibrated to traceable national standards