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

Adjustable Min. / Max. indicator marks to highlight working range of the yarn package hardness tester HP-10-F

For bobbins with diameters smaller than 400 mm use textile durometer 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

Available Models

ModelBall ØApplication
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 diametermore
HP-5-F5 mmfor loosely wound bobbins of synthetic fibers and closely wound natural fibers, yarns and threads with more than 400 mm diametermore

Indentor:Ball Ø 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

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 with a durometer

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

Attachment and Accessories

  1. Memory pointer Code M

    Schleppzeiger bei einem HärteprüferMemory pointer to capture and store value (last or highest reading) during measuring.
    Order code: HP-5-F-M

  2. Test Stand

    Prüfstand PHPS für Härteprüfer

    Model PSHP for series measurements
    – Spring loaded lever for fast, precise positioning
    – Height adjustable 0 – 200 mm
    – Stroke lever action 40 mm
    – Dimensions 162 x 100 x 320 mm (LxWxH)
    – Weight net: Approx. 2,3 kg
    Various plates are optional available,
    ask for more information !

  3. Calibration Certificate

    Kalibrierbericht für HärteprüferCalibration certificate with calibration report is optional available.


Dimensions of yarn package hardness tester HP-10-F for download:
Delivery Includes

Lieferumfang Textilhärteprüfer HP-10-FYarn package hardness tester HP-10-F 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

Instruction Manual

Download the instruction manual for yarn package hardness tester HP-10-F:

If you want to get a quote or want to place an order please contact us.

+49 (0)8638 9410-0

+49 (0)8638 4825