Manual Centring Devices for Micro IRHD tester
The Micro-IRHD tester is designed to carry out tests even on very small finished pieces. Centring devices are useful for positioning the test-piece under the indentor.



Diaphragm centring device for O-rings 
The device permits to perform automatic multiple tests on O-ring or round parts with external diameter up to 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.


Micro-Cylinder centring device for Orings 
The device is designed for the quick centring of O-rings or cylindrical parts independently from the diameter. This device permits to make one test on the sample and requires manual repositioning of the sample between one tests and the next.
This device is mounted directly on the standard plate of the instrument.
The use is very simple:
1) the sample is placed between the vertical micro-cylinders.
2) the position of the micro-cylinders is regulated using the handle to fix the sample in the middle.
3) the middle position of the micro-cylinders is the correct centring point for the test.
The height of the micro-cylinders can be adjusted using the regulation ring according to the cross-section of the sample.
The Y axe position is automatically centred due to the mechanical construction of the instrument.


Centring device for tubes 
A piece of tube is placed on the horizontal cylinder for testing.
Note: this device requires manual
repositioning of the sample between one tests and the next.




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.


Diaphragm centering device 
Enables Multiple Automatic testing of o-rings or round parts with external diameter up to 75 mm.
Testing of samples with the same dimensions don't require re-centring.
Distance between support plate and diaphragm is adjustable to fit sample section 
Microcylinder centering device 
Permits quick positioning of symmetric parts without diameter limitation
Manual positioning is required between one test and the next
The height of the micro-cylinders can be adjusted according to the cross-section of the sample 
Centering device for tubes 
Permits to test rubber tubes with external diameter up to 50 mm
Manual positioning is required between one test and the next 


Gibitre Instruments
Via dell'industria, 18
Bergamo (Italy)
te. +39 035 461146
www.gibitre.it
info@gibitre.it

© Gibitre Instruments
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Manual Centring Devices for hardness tester

Gibitre has developed several types of manual centring devices to ease the positioning of technical parts in the right testing point




 
Diaphragm centring device for O-rings 
The device permits to perform automatic multiple tests on O-ring or round parts with external diameter up to 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.

Micro-Cylinder centring device for Orings 
The device is designed for the quick centring of O-rings or cylindrical parts independently from the diameter. This device permits to make one test on the sample and requires manual repositioning of the sample between one tests and the next.
This device is mounted directly on the standard plate of the instrument.
The use is very simple:
1) the sample is placed between the vertical micro-cylinders.
2) the position of the micro-cylinders is regulated using the handle to fix the sample in the middle.
3) the middle position of the micro-cylinders is the correct centring point for the test.
The height of the micro-cylinders can be adjusted using the regulation ring according to the cross-section of the sample.
The Y axe position is automatically centred due to the mechanical construction of the instrument.

Centring device for tubes 
A piece of tube is placed on the horizontal cylinder for testing.
Note: this device requires manual
repositioning of the sample between one tests and the next.

 
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.

 
Technical specifications
Diaphragm centering device  Enables Multiple Automatic testing of o-rings or round parts with external diameter up to 75 mm.
Testing of samples with the same dimensions don't require re-centring.
Distance between support plate and diaphragm is adjustable to fit sample section 
Microcylinder centering device  Permits quick positioning of symmetric parts without diameter limitation
Manual positioning is required between one test and the next
The height of the micro-cylinders can be adjusted according to the cross-section of the sample 
Centering device for tubes  Permits to test rubber tubes with external diameter up to 50 mm
Manual positioning is required between one test and the next 
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