Hans schmidt Vietnam - Yarn Package Hardness Tester Model HP-5 - - Thiết bị tự động hóa công nghiệp - ANS Vietnam

Special Features

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• The spring loaded outer ring assures a constant measuring pressure and eliminates false readings due to difference between operators
• Ball shaped indentor prevents damage to bobbins
• Working face slightly curved to fit on small bobbins, working face radius 55 mm

• Adjustable Min./Max. indicator marks to highlight working range of the textile durometer
• For bobbins with diameters over 400 mm use durometer model HP-5-F with flat working face e.g. warping beams
• Optionally available: Calibration certificate with calibration report

Standard Features

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• High repeatability
• Easy to use
• Display range 0 - 100 hardness graduation marks
• Certificate of Compliance with the order 2.1 according EN 10204 is included

For measuring the hardness, the spring-loaded outer ring of the housing is pressed downwards until the edge of the ring meets the red marking on the housing. This ensures a constant pressure and prevents measuring errors.

General:
The principle used to measure textile hardness is based on measuring the resistance force of the penetration of a ball shaped indentor against the spool under a known spring load. The hardness scale covers a range of 0 - 100, were 0 is the smallest and 100 is biggest hardness. The measuring force and the principle relates to the specifications of rubber hardness tester Shore A.

Please note:
There exists no international standard for adjusting and calibration of textile hardness. Therefore we have developed our own test-standard and procedures.