Yarn Package Hardness Tester HP-2.5
Yarn Package Hardness Tester HP-2.5to determine winding density of closely wound bobbins of synthetic, finished fibers and filaments.
Lower Side of the Yarn Package Hardness Tester HP-2.5with curved working face Ø 45 mm and indentor with 2.5 mm Ø
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
|HP-2.5||2.5 mm||for closely wound bobbins of synthetic, finished fibers and filaments|
|HP-5||5 mm||for loosely wound bobbins of synthetic fibers and closely wound natural fibers, yarns and threads||more|
|HP-10||10 mm||for very loosely wound bobbins of thick yarns, such as carpet yarns||more|
|Indentor:||Ball Ø 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 radius:||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 when outer ring is pulled to red marking
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.
There exists no international standard for adjusting and calibration of textile hardness. Therefore we have developed our own test-standard and procedures.
- Memory pointer Code M
Memory pointer to capture and store value (last or highest reading) during measuring.
Order code: HP-2.5-M
- Test Stand
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 !
- Test Block
The test plate is used for testers with a curved surface. It can be tested, if the measuring pointer does a 360° turnaround conforming to an defined penetration.
Place the tester on the block. Press down the instrument with its housing ( do not use spring – loaded outer shell). The pointer has to do a full turnaround from zero to zero marking. If the result of the verification is positive, the durometer should show correct readings over the complete range.
Order number: HP-P up to serial-number 310-5800
Order number: HP-PT from serial-number 310-5801
- Calibration Certificate
Calibration certificate with calibration report is optional available.