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NBR 15557 Fig. 4 Cutting Die – Angle Tear Specimen
Angle tear specimen · Tear specimen — built to NBR 15557. Hardened steel or economical ribbon steel.
Brand: Universal Grip | Model: UGC-CDH-NBR15557-F4 / UGC-CDR-NBR15557-F4 | ● Made to order
Cuts the NBR 15557 Fig. 4 angle Tear Specimen profile: 100 mm overall length
Two styles: hardened steel for 0–5 mm, ribbon steel for 0–3 mm
Integral ejector (hardened) or foam pad (ribbon) pushes each specimen free
Fits manual, pneumatic and hydraulic sample-cutting presses
Free test cuts on your material before you order
Custom profiles, multi-cavity dies and nick/notch features on request
Downloads: Ribbon Steel Die Data Sheet (PDF)
Standards: NBR 15557 · ASTM D624
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Precision cutting die for NBR 15557 Fig. 4 angle Tear Specimen specimens
This Universal Grip die cuts the angle tear specimen (tear specimen) defined in NBR 15557: Inner tubes for tyres - Requirements and test methods. Right-angle tear specimen used to measure tear resistance of inner-tube rubber. Tear starts at the 90° vertex under tensile loading.
We make it in two styles so the die suits the material you cut. The one-piece hardened steel die is machined from a single piece of steel and holds its edge on rigid & semi-rigid plastics, filled compounds, rubber, sheet & film from 0 to 5 mm thick. The ribbon steel (steel-rule) die uses a precision-bent hardened rule in a laser-cut plywood base with a foam ejection pad, an economical choice for rubber, elastomers, TPE, foams, soft plastics & films up to 3 mm. Both cut the same NBR 15557 Fig. 4 profile.
NBR 15557 Fig. 4 specimen dimensions
The die is cut to the nominal profile in NBR 15557: overall length 100 mm, width 19 mm and included angle 90°. Always check your current edition of the standard for tolerances and the test procedure.
Fig. 4 compared with other NBR 15557 dies
Fig. 4: 100 mm overall length (this die)
Fig. 4 sits mid-range among the 3 NBR 15557 profiles we make.
Where it is used
Typical uses for NBR 15557 Fig. 4 specimens include tyre inner tubes, butyl and natural rubber compounds, homologation testing (Brazil) and incoming compound QC.
Cutting specimens with the die
The die mounts on a benchtop arbor press with a simple lateral screw; the material sits on a hard nylon cutting plate so every stroke cuts cleanly through. With an adapter, the same die can also cut specimens on your universal testing machine. Send us a sample of your material and we will make test cuts free of charge, so you can confirm the edge quality before you order. Hardened dies can be re-sharpened with our die sharpening tool.
NBR 15557 Fig. 4 Cutting Die Specifications
STANDARD
NBR 15557 Fig. 4
SPECIMEN
Angle tear specimen
SPECIMEN TYPE
Tear specimen
OVERALL LENGTH
100 mm
WIDTH
19 mm
INCLUDED ANGLE
90°
HARDENED STEEL DIE
One-piece machined steel, 0–5 mm material, integral ejector plate
RIBBON STEEL DIE
Steel rule in plywood base, 0–3 mm material, foam ejection pad
PRESS COMPATIBILITY
Manual, pneumatic & hydraulic sample-cutting presses
PART NUMBERS
UGC-CDH-NBR15557-F4 (hardened) · UGC-CDR-NBR15557-F4 (ribbon)
Models & Options
Hardened Steel Cutting Die — One-piece machined, hardened and precision-finished; rigid & semi-rigid plastics, filled compounds, rubber, sheet & film; 0–5 mm; integral ejector plate; re-sharpenable (UGC-CDH-NBR15557-F4)
Ribbon Steel Cutting Die — Precision-bent hardened steel rule in a laser-cut plywood base with closed-cell foam ejection pad; rubber, elastomers, TPE, foams, soft plastics & films; 0–3 mm; economical, fast turnaround (UGC-CDR-NBR15557-F4)
Press mounting — Matched to your press make and model, or an adapter for your universal testing machine (Specify at order)
Custom features — Custom profiles, multi-cavity dies and nick/notch features on request (Custom)
What's Included
NBR 15557 Fig. 4 cutting die in your chosen style (hardened or ribbon steel)
Specimen ejection: integral ejector plate (hardened) or foam ejection pad (ribbon)
Mounting to suit your press — tell us the make and model
Data sheet with the nominal profile dimensions
Supported Test Standards
NBR 15557 — Inner tubes for tyres - Requirements and test methods
ASTM D624 — Related standard: tear strength of rubber, including the Die C angle specimen
Compatible Grips & Fixtures
Arbor press — Benchtop press for cutting angle Tear Specimen specimens with this die
Sample die press — Specimen-preparation presses and tools
Pneumatic grips — Constant clamping force for rubber dumbbells and tear specimens
Roller grips — Self-tightening eccentric roller grips for elastomers
Die sharpening tool — Restore the cutting edge of a hardened steel die
Elastomer testing — Grips, fixtures and dies for rubber and TPE testing
“Customer quote”
Related Equipment
NBR 15557 Fig. 2 Cutting Die
Dumbbell 6 x 33 · 6.0 × 33 mm narrow section
NBR 15557 Fig. 3 Cutting Die
Dumbbell 4 x 25 · 4.0 × 25 mm narrow section
ASTM D624 Die C Cutting Die
Unnicked 90° Angle Tear Specimen · overall length 102 ± 0.5 mm, width of tabs 19 mm
DIN 53515 Cutting Die
Graves Angle Tear Specimen with Incision · overall length 102 mm, width 19 mm
NBR 15557 Fig. 4 Cutting Die FAQ
What is the NBR 15557 test used for?
Right-angle tear specimen used to measure tear resistance of inner-tube rubber. Tear starts at the 90° vertex under tensile loading.
What are the NBR 15557 Fig. 4 specimen dimensions?
The die cuts the nominal NBR 15557 profile: overall length 100 mm, width 19 mm and included angle 90°. These values come from the standard; check your current edition for tolerances.
Hardened steel or ribbon steel: which NBR 15557 Fig. 4 die should I choose?
For most rubber and TPE sheet around 2 mm thick, the ribbon steel die is the economical choice. Choose hardened steel for filled or harder compounds, sheet up to 5 mm, or high daily volumes, since it lasts longer and can be re-sharpened.
Which press do I need for the NBR 15557 Fig. 4 die?
The die fits manual, pneumatic and hydraulic sample-cutting presses. On our arbor press it mounts with a lateral screw, and an adapter lets it run on a universal testing machine. Tell us your press make and model and we will match the mounting.
Which other NBR 15557 dies do you make?
We also make cutting dies for Fig. 2 and Fig. 3, each in hardened and ribbon steel.
Can you make test cuts on my material?
Yes. Send us a sample of your sheet and we will make test cuts free of charge, so you can see the edge quality and confirm the right die style before you order.
Can you make a custom or multi-cavity NBR 15557 Fig. 4 die?
Yes. We make custom profiles, multi-cavity dies and nick or notch features on request. Send the drawing or standard, your material and thickness, and your press model.