Yarn Package Hardness Tester HP-10-F

Textile hardness tester (durometer) to determine winding density of very loosely wound bobbins with thick yarns, such as carpet yarns
Indentor - ball diameter 10 mm
The measuring force is according to shore A regulations

Durometer with large working face for bobbins with more than 400 mm diameter

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
  • Flat bottom prevent tilting and improves the measuring accuracy
working face durometer HP 10-F
  • Adjustable Min. / Max. indicator marks to highlight working range of the textile durometer
  • For bobbins with diameters smaller than 400 mm use durometer model HP-10 with curved working face
  • 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


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.

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 10-F

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-10-F10 mmfor very loosely wound bobbins of thick yarns with more than
400 mm diameter, such as carpet yarns
HP-2.5-F2.5 mmfor closely wound bobbins of synthetic, finished fibers and
filaments with more than 400 mm diameter
HP-5-F5 mmfor loosely wound bobbins of synthetic fibers and closely wound
natural fibers, yarns and threads with more than 400 mm diameter

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

Calibration Certificate

Calibration certificate with calibration report is optional available.

Delivery Includes

scope of delivery durometer HP 10-F: 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 For PDF-file please
click picture


Ball 10 mm 
Area of application:For very loosely wound bobbins of thick yarns with more than 400 mm diameter, such as carpet yarns
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 flat:45 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 when outer ring is pulled 
     to red marking



New Tension Meter


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


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