Yarn Package Hardness Tester HP-2.5

Textile hardness tester (durometer) to determine winding density of closely wound bobbins of synthetic, finished fibers and filaments
Indentor - ball diameter 2.5 mm
The measuring force is according to shore A regulations

Durometer with curved working face for bobbins with diameter up to 400 mm

Special Features

  • 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
working face durometer HP 2.5
  • Adjustable Min./Max. indicator marks to highlight working range of the textile durometer
  • For bobbins with diameters over 400 mm use durometer model HP-2.5-F with flat working face e.g warping beams
  • Optionally available: Calibration certificate with calibration report

Standard Features

  • 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

Operation

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.

operation durometer HP 2.5

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

Available Models

ModelBall Application
HP-2.52.5 mmfor closely wound bobbins of synthetic, finished fibers and filaments
alternative
HP-55 mmfor loosely wound bobbins of synthetic fibers and closely wound natural fibers, yans and threadsmore
HP-1010 mmfor very loosely wound bobbins of thick yarns, such as carpet yarnsmore

Attachment and Accessories

Memory Pointer Code M

Memory pointer to capture and store value
(last or highest reading) during measuring.
Order code: e. g. HP 2.5-M

Test Stand

Model PSHP for series measurements

Click picture for more information

Test Block

For Textile Hardness Tester with curved working face
Order number: HP-P up to serial-no. 310-5800
Order number: HP-PT from serial-no. 310-5801

Click picture for more information

Calibration Certificate

Calibration certificate with calibration report is optional available.

Delivery Includes

scope of delivery durometer HP 2.5: Textile hardness tester with carrying case, Certificate of Compliance with the order 2.1 according EN 10204 free of charge, operating instructions in english or german as requested 

Dimensions

Dimensions For PDF-file please
click picture

Specifications

Indentor:
Ball 2.5 mm 
Area of application:For closely wound bobbins of synthetic, finished fibers and filaments
Depth of indentation*:0 - 2.5 mm
Test pressure**:Approx. 12.5 N
Measuring spring force*:0.55 - 8.065 N
Display range:0 - 100 hardness graduation marks
Scale diameter:54 mm
Working face diameter:55 mm
Weight, net (gross):Approx. 300 g (500 g)
Dimensions:50 x 58 x 110 mm (LxWxH)

Specifications subject to change without notice!
* Meets requirements of Shore A
** Spring load of outer ring to create constant pressure

News

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New Tension Meter

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With one click you can download the information sheet for our new tension sensor.

Contact

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+49 (0)8638 9410-0
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+49 (0)8638 4825
You can also send us a fax with your message or request.

Contact via E-Mail!

info@hans-schmidt.com
Or feel free to email
us via our contact form!