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JIS K7137-2-A Cutting Die – PTFE Small Dumbbell (Type A)
PTFE Small Dumbbell (Type A) · Tensile specimen — built to JIS K7137-2. Hardened steel or economical ribbon steel.
Brand: Universal Grip | Model: / UGC-CDR-JISK71372-TA | ● Made to order
Cuts the JIS K7137-2-A PTFE Small Dumbbell (Type A) profile: 5 × 12 mm narrow section, 38 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: JIS K7137-2
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Precision cutting die for JIS K7137-2-A PTFE Small Dumbbell (Type A) specimens
This Universal Grip die cuts the PTFE Small Dumbbell (Type A) (tensile specimen) defined in JIS K7137-2: Plastics — PTFE semi-finished products — Part 2: Preparation of test specimens and determination of properties. JIS K7137-2 covers specimen preparation and property testing for PTFE semi-finished products such as sheet, rod and tube. The small Type A dumbbell is cut from thin skived or molded PTFE for tensile strength and elongation.
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 JIS K7137-2-A profile.
JIS K7137-2-A specimen dimensions
The die is cut to the nominal profile in JIS K7137-2: overall length (approx.) 38 mm, width of ends (approx.) 15 mm, width of narrow section 5 mm, length of narrow section 12 mm and thickness 1.5 ± 0.25 mm. Always check your current edition of the standard for tolerances and the test procedure.
Where it is used
Typical uses for JIS K7137-2-A specimens include PTFE molding powder QC, sintered sheet and skived tape, fluoropolymer seals and liners and resin lot acceptance testing.
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.
JIS K7137-2-A Cutting Die Specifications
STANDARD
JIS K7137-2-A
SPECIMEN
PTFE Small Dumbbell (Type A)
SPECIMEN TYPE
Tensile specimen
OVERALL LENGTH (APPROX.)
38 mm
WIDTH OF ENDS (APPROX.)
15 mm
WIDTH OF NARROW SECTION
5 mm
LENGTH OF NARROW SECTION
12 mm
THICKNESS
1.5 ± 0.25 mm
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
(hardened) · UGC-CDR-JISK71372-TA (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
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-JISK71372-TA)
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
JIS K7137-2-A 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
JIS K7137-2 — Plastics — PTFE semi-finished products — Part 2: Preparation of test specimens and determination of properties
Compatible Grips & Fixtures
Arbor press — Benchtop press for cutting PTFE Small Dumbbell (Type A) specimens with this die
Sample die press — Specimen-preparation presses and tools
Wedge grips — Self-tightening wedge grips for rigid plastic dumbbells
Pneumatic grips — Constant clamping force for thin or soft plastics
Die sharpening tool — Restore the cutting edge of a hardened steel die
Plastics testing — Grips and fixtures for plastic film, sheet and molded parts
“Customer quote”
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JIS K7137-2-A Cutting Die FAQ
What is the JIS K7137-2 test used for?
JIS K7137-2 covers specimen preparation and property testing for PTFE semi-finished products such as sheet, rod and tube. The small Type A dumbbell is cut from thin skived or molded PTFE for tensile strength and elongation.
What are the JIS K7137-2-A specimen dimensions?
The die cuts the nominal JIS K7137-2 profile: overall length (approx.) 38 mm, width of ends (approx.) 15 mm, width of narrow section 5 mm, length of narrow section 12 mm and thickness 1.5 ± 0.25 mm. These values come from the standard; check your current edition for tolerances.
Hardened steel or ribbon steel: which JIS K7137-2-A die should I choose?
For rigid and semi-rigid plastics, filled compounds and sheet up to 5 mm, choose the hardened steel die. The ribbon steel die is the economical option for soft plastics and films up to 3 mm.
Which press do I need for the JIS K7137-2-A 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 JIS K7137-2-A specimens?
Hold the wide ends in wedge grips or 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 JIS K7137-2-A 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.