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Automatic Hardness Check - Pc

Automatic instruments for the measurement of Shore or IRHD hardness fitted with motor-controlled sample holder.




 
Overview 
Stand-alone automatic hardness units are independent hardness measurement devices designed for the execution of hardness tests according to a specific hardness scale.
Stand-Alone automatic units have been designed to meet the requirements of research labs and for production control.

Available Hardness Scales 
Available hardness scales are:
Shore A,
Shore D,
Shore A0,
Shore 00,
Shore AM (Micro)
IRHD-Micro,
IRHD-Normal,
IRHD-Hard,
IRHD-Low.
Accredia Calibration of the instrument 

Gibitre Instruments is Accredited Accredia laboratory according to ISO 17025 Standard


The instrument can be supplied with an ACCREDIA calibration certificate issued by the Accredia laboratory of Gibitre instruments.
The calibration is carried out according to the Technical Procedure approved by Accredia and in compliance with the requirements of the ISO 48-2 (IRHD), ISO 48-4 (Shore A) and ISO 868 (Shore D) standards.
The Calibration refers to:
• Dimensions of the Indentor and Annular foot
• Forces applied by the indentor and the annular foot
• Displacement of the indenter
• Duration of the test

 
Automatic Sample displacement 
• The motorized ascent and descent movement of the specimen allows the test to be carried out automatically.
• The automatic rotation of the measurement plate makes it possible to carry out tests automatically at different points on the sample.
• The operator can set the number of tests to be performed automatically on the specimen and the angle of rotation between successive tests.

Gibitre Hardness Software 
The automatic durometer control through the Software Hardness-Check allows to exploit all the potential of the instruments:
• Perform multiple tests automatically on the specimen
• Save all test results in the SQL database
• Compare the results with the tolerance limits
• Produce test reports
The PC control software allows multiple instruments to be used simultaneously. Each instrument is connected to the PC via the supplied USB cable.

Calculated Results: IRHD Hardness 
The software allows you to prepare customized test procedures that include all the calculations required by the standards and product specifications. The dedicated page describes all the available calculations.
Calculated Results: SHORE Hardness 
The software allows you to prepare customized test procedures that include all the calculations required by the standards and product specifications. The dedicated page describes all the available calculations.
Management of Test Results 
The results and test curves of all the tests carried out are saved in the Gibitre SQL database and are available through the Datagest program.

Datagest is the Laboratory Information Management System (LIMS) which is always installed in combination with all Gibitre instrument-control programs.
The program is the collector for all the test result produced with the instruments connected and permits to manage the common Archives used by the instruments (Product List, Customer List, Tolerance limits, Order List, etc)

Industry 4.0 integration 
The instrument and the software have been specifically developed to optimize integration with other environments.
The database in SQL format and the Gibitre_Company_Connect program allows you synchronize your company management software with Gibitre database and to speed up the identification of the tests and to use bar-code readers or similar devices.
The automatic logging service permits to send alarm information to the cloud-service platform of Gibitre Instruments in order to optimize the reaction times of the Service Support.

Test report 
Can be printed or saved to pdf in one of the available languages. The format of the Test Report can be customized by the user.

Example of Test Report (Micro IRHD)

Example of Test Report: IRHD+Hysteresis
Tolerance Limits 
The Datagest program allows you to define specific tolerance limits for each Product, Customer, Test Procedure and Aging Treatment.
For each result to be calculated, tolerance limits and alarm limits can be defined.
The comparison between the results and the tolerance limits is carried out automatically at the end of each test: the test results are colored (Green, Yellow or Red) based on the outcome of the comparison with the limits.
The outcome of the check is saved in the database together with the results.

Statistics of ongoing tests 
The programs automatically process the statistical analysis of the tests in progress by calculating:
• Maximum
• Minimum
• Average
• Median
• Standard deviation
• Cp
• Cpk
In addition, the Gaussian curve relative to the results is shown together with the tolerance limits to immediately highlight the progress of the tests in progress.
The Datagest program allows you to process more detailed statistics related to the saved results and to represent X and R Charts by grouping data by order, batch, batch, date, etc.
Standard Calibration service for IRHD Hardness Tester 
The calibration is performed with reference to the requirements of ISO 48-2 standard.
The service includes:
• Ordinary maintenance of the instrument
• Visual inspection of the Indentor.
• Calibration of the Pre-Load, of the Main Load and of the weight of the Anular foot.
• Calibration of the force application time for Pre-Load and Main-Load (NEW)
• Calibration of the displacement of the indentor in correspondence with several IRHD Hardness readings
• Pre-calibration and Post-Calibration test of the instrument with reference test samples (NEW)
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.

Sample Calibration Report

Standard Calibration service for a SHORE Hardness Tester 
The calibration is performed with reference to the requirements of ISO 48-4 standard.
The service includes:
• Ordinary maintenance of the instrument
• Visual inspection of the Indentor.
• Calibration of the total run of the indentor (readings at 0 and 100 Shore points).
• Calibration of the displacement of the indentor and of the force applied by the indentor in correspondence with several Shore readings (20, 40, 50, 60, 80, 90 Shore).
• Calibration of the force application time (NEW)
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.

Sample Calibration Report

Universal Centring Device for O-Rings 
The centering device allows to quickly carry out hardness tests on O-rings with rope between 1 and 11 mm and internal diameter up to 200 mm.
To carry out the test, the piece is positioned on the extension plate integrated between the two adjustment micro-cylinders.
The adjustment wheel allows you to set the distance between the cylinders according to the rope of the o-ring.
The fixing clip allows to maintain the correct positioning of curved pieces
The device is applied to the standard plate of the instrument by magnetic fixing which allows its rapid installation and removal.
Diaphragm centering device for O-rings 
The device permits to perform automatic multiple tests on O-ring or round parts with external diameter between 4.5 and 75 mm. The device consist of a diaphragm to fix the external diameter of the o-ring and of a gauge-meter for the adjustment of the position of the center of the diaphragm.
The use is very simple:
1) Open the diaphragm and put the o-ring in the center of the device.
2) Close the diaphragm using the open-close leverage until the o-ring is fixed in the center of the device
3) Use the gauge-meter of adjust the position of the device according to the diameter and cross-section of the o-ring
4) Start a multiple test session to make automatically tests in different points of the sample.
To test several o-rings with the same dimensions, you only need to replace the o-ring on the device without any further regulation.

Centring Device for cylinders and Hoses 
Cantering system for the measure of Micro-irhd hardness on the outer surface of rubber tubes with maximum external diameter 50 mm (other dimension on request).
No preparation of the sample to keep it flat is needed.
To perform a test, you simply need to place a piece of the hose on the device and press start.
Extension of sample holder 
Extension of sample holder for Automatic Hardness tester with 300 mm diameter. The support, made of Aluminium, can be added to the standard sample holder to increase the bearing surface for the testing of big-size samples.

Hardware requirements 
• Programs can be installed on standard PCs with WINDOWS 7, 8 or 10 OPERATING SYSTEMS.
• The CONNECTION between the instruments and the PC is made using the USB CABLE supplied with the instrument.
• The programs are COMPATIBLE WITH ANTIVIRUS, and other programs installed on the PC.

Language Selection 
All the programs produced by Gibitre are multi-language and allow the operator to select the language of use.
The test report can be produced in the desired language regardless of the language of use of the program.
The languages available at the moment are: Italian, English, German, French, Portuguese, Russian, Chinese, Japanese, Turkish, Polish, Czech

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:  FIAT 50408; FIAT 50411; VDA 675-202; ASTM D1414; ISO 868; ISO 48-2; ISO 48-4; EN 681-1; ASTM D1415; ASTM D2240;  
Instrument Characteristics
Available hardness types  Shore: (A, D, 00, M)
IRHD: (Micro, Normal, Hard, Low) 
Test modality  Fully automatic test in different points of the same sample  Resolution  0.01 Hardness point  Unit control  Control via Gibitre Hardness Check Software or via Gibitre Digital Display 
Software
Test results calculated for each test  Shore units: Initial hardness, hardness values after set test times
IRHD/micro IRHD: Hardness at 30 sec (and at set test times), Angle Coeff. of Hardness Vs Time curve, Hysteresis after load removal, Correction of hardness according to sample thickness 
Results storage  The test result sand the curves are stored in the SQL Gibitre database which is installed in combination with the software  Regression curve analysis  Angle coefficient of Regression curve  Hysteresis analysis (irhd tests)  % recovery after set time after main force removal  Data analysis  Mean, std. Dev., min, max, Cp, Cpk of test results. X-Chart and Gaussian distribution  Graphs  Rubber Relaxation curve (hardness
versus test time) in linear and logarithmics axes 
Control of the instrument with Digital Display
Display Characteristics  The Touch-screen display permit to start and stop the automatic execution of the test and to display the hardness reading 
Safety Devices
Labelling  CE Labelling 
Calibration
Calibration  • Calibration Report conforming to ISO 48-2 (IRHD units) or ISO 48-4 (Shore Units) with traceability to primary references
• ACCREDIA calibration Certificate (optional) 
Technical specifications
Power supply  110-240 V, 50/60 Hz, 15 W, single phase  Dimensions  (W x D x H) 250 x 250 x 600 mm  Weight  30 Kg 
Personal computer
Personal computer  Minimum Configuration: Intel Core I3 2 GB RAM.
Compatible Operating Systems: Windows 7, 8 and 10;
Connection to the instrument via USB Cable (included) 
Related pages
Download
Product leaflet

General catalogue

Calibration certificate
example
CE certificate
example
 

Faq

?
How should I correct the Shore A hardness of the compound to obtain the requested IRHD Hardness of my finished part?
The correct method to obtain the expected result in terms of IRHD hardness is to measure the result obtained at the end of the transformation process, compare it with the tolerance limits and correct the compound formulation by the number of points necessary to 'center' the result. This operation must be carried out for each mixing recipe and for each transformation process.
?
Which is the difference between Shore A and IRHD Hardness test results?
Test results of tests performed with IRHD (ISO 48-2) are are similar to the ones obtained with Shore A test (ISO 48-4), especially for low hardness. However, they are not strictly the same. Indeed, depending on the shape of the part, we can regularly notice 2 to 5 points hardness difference between Shore A and IRHD measurement done on the part. This difference can even be extended to 10 points difference in extreme cases. In general, IRHD results are lower to Shore A results. That is why it is common to use “75 Shore A compounds” to obtain “70 IRHD part”. For example, parts moulded with a “70 Shore A compound” can give finished parts with a hardness from 62 to 65 IRHD, and therefore out of the 70±5 IRHD tolerance. The correct method to obtain the expected result in terms of IRHD hardness is to measure the result obtained at the end of the transformation process, compare it with the tolerance limits and correct the compound formulation by the number of points necessary to 'center' the result. This operation must be carried out for each mixing recipe and for each transformation process.
 
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