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Abrasion Check

Abrasion tester in compliance with ISO 4649, ASTM D 5963 ( DIN 53 516) standards




 
Overview 
The abrasion test gives a comparative evaluation of the resistance to the abrasion of specimens made of vulcanised rubber, plastic and different materials.
The abrasion test according to ISO 4649 and ASTM D5963 is performed on a standard specimen through the use of a certified abrasive paper on a rotating drum with a standard test cycle.


Description of the test 
• The test allows measuring the volume loss of a cylindrical specimen with 6 mm thickness and 16 mm diameter, which can be obtained by molding or punched from a finished product.
• The specimen is inserted into the locking clamp.
• During the abrasion cycle, the specimen is pressed with a defined force against a rotating drum to which abrasive paper is applied.
• The measurement of the volume variation of the specimen after the abrasion cycle is carried out with a millesimal scale (not included in the supply)

Key Features 
• Easy setup of the instrument to select test mode and perform tests with or without axial sample rotation
• Quick change of the weights to perform tests with 5 N, 10 N or 20 N vertical force
• Detection of premature sample consumption with automatic test stop
• Special design of the sample holder with regulation of closure force of the sample and accurate set of sample protrusion.
• Electronic motor controller for accurate control of the rotating speed of the drum.
• Integrated brush for continuous drum cleaning during the test.
• Drum unlock system to ease the replacement of the abrasive paper and the cleaning of the instrument.
• Protection transparent panel
• EU Labelling

 
UNIQUE FEATURE: Automatic Detection of Premature sample consumption 
• The instrument automatically detects when the sample is totally abraded and is no more in contact with the abrasion paper.
• The instrument automatically stops and the light warns that the test has not been successfully finished.
• This unique features permits to prevent mistakes in the evaluation of the abrasion resistance of your products
Brush for continuous cleaning of the drum 
The instrument is equipped with a brush for the continuous cleaning of the drum. The device guarantees the removal of the debris left by the specimen, speeding up the execution of the tests
Standard Calibration service for an Abrasion Tester 
The calibration is performed with reference to the requirements of ISO 4649 standard.
The service includes:
• Ordinary maintenance of the instrument
• Calibration of the number of revolutions of the drum during the test
• Calibration of the lateral displacement of the sample
• Calibration of the test time
• Calibration of the vertical force on the sample holder (5N and 10 N)
• Calibration of the abrasiveness of the emery paper with Certified rubber samples (3 tests)
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.

Sample Calibration Report

Safety Devices 
• Safety protection door with safety switch
• Safety Push-button
• CE labelling

Rubber Samples from Certified rubber plates for abrasive paper calibration 
Rubber samples obtained from Standard Reference compound for the calibration of the abrasive sheet and for use as a comparative reference compound.
Standard reference compound n°1 in conformity with ISO 4649, annex B, clause B2.
Mould for compression moulding of test samples 
Mold compliant with ISO 4649 for the preparation of specimens to standards. The mold allows to prepare specimens by compression molding starting from compound.

Rotating cutter for sample preparation 
The die, conforming to the requirements of the ISO 4649 standard, must be applied to a drill press and allows to obtain specimens for abrasion test from finished parts
Development and production 
The instrument is totally developed and produced in the plant of Gibitre Instruments in Italy.
All the mechanical parts are produced in the company workshop using modern CNC machines.
Components and sensors from well-known brands are selected in order to ensure the maximum reliability in the measures
Internal trained personnel takes care of all the production stages: assembly, start-up, calibration, packing, shipment and installation.

 
Technical specifications
Reference Standards
Standards the instrument complies with:  EN 12770; ISO 4649; ASTM D5963;  
Testing Configuration
Test Setup  • Test with/without sample rotation
• Selection of vertical force on the sample (5, 10, 20N - Other on request)
• Test with reduced run 
Weights for the application of the vertical force  Weights are supplied for the application of:
5 ± 0.1 N
10 ± 0.2 N
Weights for application of different forces are available on request. 
Sample Holder Characteristics  - Adjustable Sample closure regulation
- Lateral displacement of the sample: 4.20 mm per revolution of the drum
- Automatic placement of the test piece on the sheet at the beginning of the test and Automatic removal at test end 
Auto detection of premature sample consumption   The instrument automatically stops when the sample is not touching the drum  Drum  Diameter: 150 ± 0.2 mm
Length: 500 mm
Rotation speed: 40 ± 1 RPM 
Drum release  Mechanical release of the drum for easy emery cloth replacement and instrument cleaning  Motor Reducer  The electronic motor controller installed ensures precise control of rotation speed 
Safety Devices
Safety Devices  Polycarbonate cover of the drum with automatic safety block.
Safety pushbutton 
Labelling  CE Labelling 
Calibration
Calibration  Calibration Report conforming to ISO 4649 with traceability to primary standards 
Technical specifications
Power Supply  220 VAC ±10%,50 Hz ±3,4 A,single phase - 110 VAC ±10%, 60 Hz ±3 on request.  Electrical power  0.4 KW  Dimensions  (Width x Depth x Height) 1000 x 400 x 400 mm  Weight  75 Kg 
Notes
Notes  A millesimal scale (not included) is used to calculate the reduction in volume of the specimen 
Related pages
Download
Product leaflet

General catalogue

Calibration certificate
example
CE certificate
example
 

Faq

?
How often I need to replace the Abrasive Sheet of the instrument ?
The abrasive sheet needs to be replaced when the abrasion power is too low. The abrasion level of the paper is measured, according to ISO 4649, performing standard tests using Certified Rubber Samples. When tests are performed using Certified Rubber Samples, the weight loss of the sample must be between 180 and 220 mg. In case the weight loss is below the minimum allowed value (180 mg) the paper must be replaced. For more detailed information, please refer to ISO 4649.
?
What is the Automatic Detection of Sample consumption ?
This unique feature permits to: • detect automatically when the sample is totally abraded and is no more in contact with the abrasion paper. • stop the instrument and warn with a light that the test has not been successfully finished. This feature is very useful to permit to prevent mistakes in the evaluation of the abrasion resistance of your products
?
The test results are affected by the abrasivity level of the abrasive sheet?
According to ISO 4649, the test results of abrasion tests are calculated as Relative Volume Loss or as Abrasion Index. Both calculations include the measure of the abrasivity level of the abrasive sheet in the calculation to compensate the deviation of the abrasivity power from the expected one. The calculation methods ensure that, using abrasive sheet with abrasivity power within the tolerance limits, the results obtained are comparable with the ones obtained on other conditions or with other instruments. For more detailed information, please refer to ISO 4649.
 
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