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ISO 3376 Cutting Die – Leather Dumbbell
Leather Dumbbell · Tensile specimen — built to ISO 3376. Hardened steel or economical ribbon steel.
Brand: Universal Grip | Model: UGC-CDH-ISO3376-S / UGC-CDR-ISO3376-S | ● Made to order
Cuts the ISO 3376 leather Dumbbell profile: 10 × 50 mm narrow section, 110 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: ISO 3376
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Precision cutting die for ISO 3376 leather Dumbbell specimens
This Universal Grip die cuts the leather Dumbbell (tensile specimen) defined in ISO 3376: Leather — Physical and mechanical tests — Determination of tensile strength and percentage elongation. ISO 3376 (IULTCS/IUP 6) determines tensile strength, elongation at a given load and elongation at break of leather. The standard dumbbell is cut parallel and perpendicular to the backbone; a larger 190 × 40 mm version with a 20 mm narrow section is also defined.
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 ISO 3376 profile.
ISO 3376 specimen dimensions
The die is cut to the nominal profile in ISO 3376: overall length 110 mm, width of ends 25 mm, length of narrow section 50 mm, width of narrow section 10 mm and thickness As received (measured). Always check your current edition of the standard for tolerances and the test procedure.
Where it is used
Typical uses for ISO 3376 specimens include footwear upper leather, automotive upholstery, garment & glove leather and leather goods.
Cutting specimens with the die
Most labs run it on a manual arbor press, but it also fits pneumatic and hydraulic sample-cutting presses, and with an adapter it can cut specimens directly on a universal testing machine. Tell us your press make and model and we will match the mounting. 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.
ISO 3376 Cutting Die Specifications
STANDARD
ISO 3376
SPECIMEN
Leather Dumbbell
SPECIMEN TYPE
Tensile specimen
OVERALL LENGTH
110 mm
WIDTH OF ENDS
25 mm
LENGTH OF NARROW SECTION
50 mm
WIDTH OF NARROW SECTION
10 mm
THICKNESS
As received (measured)
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-ISO3376-S (hardened) · UGC-CDR-ISO3376-S (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-ISO3376-S)
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-ISO3376-S)
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
ISO 3376 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
ISO 3376 — Leather — Physical and mechanical tests — Determination of tensile strength and percentage elongation
Compatible Grips & Fixtures
Arbor press — Benchtop press for cutting leather Dumbbell specimens with this die
Sample die press — Specimen-preparation presses and tools
Pneumatic grips — Even clamping for leather dumbbells
Die sharpening tool — Restore the cutting edge of a hardened steel die
Tensile grips — Wedge, vise, pneumatic and roller grips for tensile testing
“Customer quote”
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ISO 3376 Cutting Die FAQ
What is the ISO 3376 test used for?
ISO 3376 (IULTCS/IUP 6) determines tensile strength, elongation at a given load and elongation at break of leather. The standard dumbbell is cut parallel and perpendicular to the backbone; a larger 190 × 40 mm version with a 20 mm narrow section is also defined.
What are the ISO 3376 specimen dimensions?
The die cuts the nominal ISO 3376 profile: overall length 110 mm, width of ends 25 mm, length of narrow section 50 mm, width of narrow section 10 mm and thickness As received (measured). These values come from the standard; check your current edition for tolerances.
Hardened steel or ribbon steel: which ISO 3376 die should I choose?
Leather is usually cut with a hardened steel die for a clean, square edge through the full thickness; ribbon steel suits thinner, softer garment leather.
Which press do I need for the ISO 3376 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.
How do I grip and measure ISO 3376 specimens?
Hold the wide ends in pneumatic grips so the specimen is loaded straight along its axis.
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 ISO 3376 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.