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Multi-Unit Automatic Hardness Check

Multi-Unit hardness tester with automatic sample displacement. Up to 4 different Shore or IRHD hardness units can be installed on the instrument. The hardness unit to be used to carry out the automatic test can be easily selected by rotating the support.




 
Multi-Unit Tester: Many instruments in one 
Multi-Unit Automatic hardness testing system has been designed for labs, which need to perform hardness tests according to different hardness scales.
The hardness testing unit to be used must be placed in the front position by rotating the top part of the support.
The rotating system permits to interchange the test unit within a few seconds. No dismounting or replacement of delicate parts and no specific training are required to perform with full safety this operation. This solid technical solution is ideal even in the case that the change of unit must be done many times in the same day.
Instrument Configuration 
The instrument can be configured according to the needs of the customer: up to 4 units can be mounted on the same support.

The available hardness testing units are:
Shore A,
Shore D,
Shore A0,
Shore 00,
Shore AM (Micro)
IRHD-Micro,
IRHD-Normal,
IRHD-Hard,
IRHD-Low.
The support of the unit is configured for the further installation of units in case free positions are available.
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

 
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.
Touch-Screen Display 
The digital display is the optimal solution for the rapid use of the instrument. To carry out the test, simply press the start button. The test is carried out completely automatically showing the hardness value at the end of the test time.
No installation needed: just plug in the power supply and start testing

Selection of the Test unit 
When you need to use a specific unit, you simply need to turn it to the front position. This operation does not require any delicate manipulation or any specific training. The control device of the instrument (display or software) will automatically switch to the selected unit.

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)

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.

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

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.

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; ISO 868; ISO 48-2; ISO 48-4; ASTM D1415; ASTM D2240;  
Instrument Characteristics
Available Hardness types  Shore A, Shore D, Shore 00, Shore M, IRHD (Normal, Hard, Low), Micro-IRHD  Test modality  Fully automatic test in different points of the same sample  Unit control  Control via Gibitre Hardness Check Software or via Gibitre Digital Display  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 
Resolution  0.01 Hardness point 
Software
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) 350 x 350 x 700 mm  Weight  61 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

?
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.
?
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.
 
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