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Manual Film Elmendorf Tearing Tester

Manual Film Elmendorf Tearing Tester

Model: UT2089A, ASTM D1922

Elmendorf Tearing Tester is designed for the tearing test of films, sheets, flexible PVC, PVDC, waterproof films, woven materials, polypropylene, polyester, paper, cardboard, textiles and nonwovens.

What is Elmendorf Tear testing?

Elmendorf Tear testing determines the force required to continue the tearing of an initial cut in sheet materials such as paper, plastic film, textile and non-woven.

General Introduction

Elmendorf Tearing Tester is designed for the tearing test of films, sheets, flexible PVC, PVDC, waterproof films, woven materials, polypropylene, polyester, paper, cardboard, textiles and nonwovens.


What is Elmendorf Tear testing?

Elmendorf Tear testing determines the force required to continue the tearing of an initial cut in sheet materials such as paper, plastic film, textile and non-woven. 

Manual Film Elmendorf Tearing Tester
After sample break



Key Features

  • Features
  • Principle
  • Standard

2.1. Automatic release of pendulum, high test efficiency

2.2. Sudden power-off data saving function, after power-on, the data before power-off can be retained and the test can be continued.

2.3. Cooperate with microcomputer software to communicate (separately purchased) ARM processor, integrated control board design, reduce the failure rate.

2.4. 7-inch color touch screen, Chinese and English operation, easy to understand and easy to operate. 


Lift the pendulum up to a certain height to give it an initial potential energy. The pendulum tears the specimen while swinging down. Computer calculates the decreased energy caused by tearing to obtain the required force for tearing. 

ASTM D295, ASTM D689, ASTM D751, ASTM D752, ASTM D4247, ASTM D1424,  ASTM D1922, ASTM D5734

TAPPI T414, TAPPI T496

BS 2782, BS 4253, BS 4468

CPPA D.9

DIN 53862, DIN 53128

ISO 1974, ISO 6383-2, ISO 9290, ISO 13937-1

EN 21974

SCAN P11


Main Technical Specification

Measuring range0~6400g (800g, 1600g, 3200g, 6400g)
Tearing force arm0.01mN
Tear initial angle104±2mm
Tearing distance27.5±1°
Cut length43±0.5mm
Longitudinal displacement of incision20mm
Paper clip size8mm
Maximum clamping area25*15mm
Clamping torque ratio6.48cm2
Free swinging quantity2.2:0.7
specimen sizemin≥20,mid≥25,stand≥35.
Blade force arm ratio(63±0.5 )mm x( 50±2)mm
Tear offsetLess than 10mm of the blade extension line
Distance between paper grippers2.8±0.5mm
Clamping methodThe system can select horizontal and vertical testing statistics
air pressureManual bilateral clamping
HMI7.0in touch screen control, modular integrated thermal sensing function, testing automatic release of disc weight
Size410mmx310mmx550mm
Weight25kg


Main accessories

ItemQuantity
Tester Frame1 set
Basic pendulum testing weights1 set
calibration weights1 set
Power cord1 pc
Documents (Manual, packing list, certificate)


Standard

ISO 6383-2 Plastic film Elmendorf tear test

ISO 6383-2 Plastics — Film and sheeting — Determination of tear resistance — Part 2: Elmendorf method

ISO 6383-2 specifies the Elmendorf pendulum method to measure the force required to propagate an existing pre-cut slit across thin flexible plastic film and sheeting under standardized loading conditions.


ASTM D1922 Elmendorf Tear Test for plastic films and thin sheeting tear resistance

ASTM D1922: Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method.

ASTM D1922 defines a laboratory method to measure the average force required to propagate (continue) a tear through a plastic film or non-rigid thin sheeting, after the tear has already been started. The test uses an Elmendorf-type pendulum tearing tester. It is applicable to plastic film (arbitrarily defined as sheeting ≤ 0.25 mm / 0.010 in.) and thin non-rigid sheeting, and is equivalent to ISO 6383-2

ASTM D1424 Elmendorf Tear Strength Test for Fabric

ASTM D1424 Standard Test Method for Tear Strength of Fabrics by Falling-Pendulum (Elmendorf) Apparatus


ASTM D1424 specifies the procedure for determining the force required to propagate a single tear through a fabric using the Elmendorf (falling-pendulum) tester. The test method is a single-tear (tongue) test. A rectangular specimen is slit partway along its length to create two tongues. The tear propagates from the slit across the width of the specimen.

ISO 1974 Elmendorf paper tearing resistance test

ISO 1974 Paper – Determination of tearing resistance – Elmendorf method

ISO 1974 defines the universal Elmendorf pendulum test to measure the out-of-plane tearing resistance of paper and lightweight paperboard, and specifies the full technical chain from sampling, specimen preparation, equipment calibration, operation to result calculation.  

ASTM D689 Internal Elmendorf Tearing Resistance Test of Paper

ASTM D689 Standard Test Method for Internal Tearing Resistance of Paper


ASTM D689 determining the internal tearing resistance of paper using an Elmendorf-type tearing tester. It measures the force perpendicular to the plane of the paper required to tear multiple sheets of paper through a specified distance after the tear has been started. The measured results can be used to calculate the approximate tearing resistance of a single sheet. In the case of tearing a single sheet of paper, the tearing resistance is measured directly. ASTM D689 explicitly states that similar procedures for making Elmendorf-type tear measurements are found in ISO 1974 and TAPPI T414. It is not suitable for determining the cross-directional tearing resistance of highly directional boards and papers.

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