Finetech Engineering is a rectangle cutter manufacturer Gujarat rubber and plastics testing labs rely on for accurate, repeatable rectangular specimen preparation. Every rectangle cutter we build is precision-ground and dimensionally verified against the governing specification before it leaves our Wagle Estate, Thane factory – manufacturer, not trader. In short, what is a rectangle specimen cutter used for is best summed up as this: exactly the situations a standard round disc cutter cannot handle – larger custom compression blocks and general-purpose flat strips.
A rectangle cutter for compression set is used specifically where a compression-set test rig calls for a rectangular block or slab specimen rather than the standard small circular disc – relevant for Gujarat’s petrochemical and chemical-plant sector when qualifying larger flange gasket and expansion joint components tested in custom compression fixtures. For the standard small-button ASTM D395 disc specimen (29 mm or 13 mm diameter), Finetech’s Round Cutter remains the correct tool; the rectangle cutter addresses the rectangular-block configuration used in larger-scale or custom compression-set testing setups. Knowing how to cut rectangular compression set specimen blocks correctly starts with matching the cutter to your fixture’s exact drawing, not estimating from the standard disc dimensions.
As a rectangle cutter supplier Ahmedabad and rectangle cutter supplier Surat testing labs have used since 2023, we supply rectangle cutters built to precise, repeatable block dimensions for compression-set fixtures, and to relevant plastics flexural and general strip-specimen standards where required. For rectangle cutter price Gujarat enquiries, contact us with your exact specimen dimension requirement and we will confirm a quotation – every cutter is dispatched from our Thane factory with the exact blade geometry your application specifies. For rectangular specimen cutter Gujarat cost questions specifically, the price always comes down to your exact block dimensions rather than a fixed catalogue rate – send us your fixture drawing and we will quote directly against it.
Tip: Before ordering a rectangle cutter for compression-set testing, confirm your compression fixture’s exact specimen dimension requirement with your test engineer – unlike the standardised small-disc ASTM D395 specimen, rectangular block dimensions for larger custom compression rigs, common in Gujarat’s petrochemical flange gasket and expansion joint testing, vary by fixture design and are not fixed by a single universal standard.
ASTM D395 specimen dimensions are defined primarily around circular disc specimens for the standard small-button compression set test, but Gujarat labs working with larger petrochemical and chemical-plant rubber components should understand both configurations. There is no single answer to what size a rectangular compression set block should be, since – unlike the standardised disc – block dimensions are set entirely by the custom fixture design:
Configuration | Specimen Shape | Typical Dimensions | Cutter Used |
Standard small-button (Type 1) | Circular disc, stacked to thickness | 29 mm or 13 mm diameter discs, stacked to 12.5 ± 0.5 mm total thickness | Round Cutter |
O-ring compression set | Circular / annular | Per the O-ring’s actual cross-section dimensions | Round Cutter (custom sizing) |
Rectangular block (custom/larger fixtures) | Rectangular block or slab | Varies by compression fixture – confirm exact dimensions with your test rig specification | Rectangle Cutter |
The critical point in ASTM D395 specimen dimensions is that the standard, most widely referenced ASTM D395 test uses the circular disc configuration – if your specification simply cites “ASTM D395” without further detail, it most likely calls for the standard disc specimen and the Round Cutter. The rectangular block configuration is used specifically where a custom compression fixture, typically for larger chemical-plant flange gaskets or expansion joints, has been designed around a rectangular geometry instead. The difference between round cutter and rectangle cutter ASTM D395 specimens comes down entirely to which geometry your specific compression fixture was designed around – the standard itself defaults to the disc.
Note: Always confirm with your customer or test engineer which specimen geometry their compression set specification actually requires before ordering a cutter. Citing “ASTM D395” alone does not confirm rectangular block dimensions – the standard’s default and most common specimen is the circular disc.
Unlike compression set testing, Shore hardness testing (ASTM D2240) does not require a specific specimen shape – only adequate thickness (typically a minimum of 6 mm, achieved by stacking thinner sheets if needed) and enough flat surface area for the durometer’s indenter foot to seat properly. A rubber strip cutter for hardness test is therefore a genuinely accurate and common use for Finetech’s rectangle cutter: producing a flat rectangular strip specimen that gives Gujarat rubber labs a consistent, adequately sized substrate for Shore A or Shore D hardness readings. So, can a rectangle cutter be used for hardness testing reliably? Yes – since Shore hardness testing has no mandated specimen shape, a rectangular strip works as well as any other adequately sized, flat specimen.
Why rectangular strips work well for hardness testing: the durometer indenter only needs a flat, sufficiently thick area to seat – a rectangular strip cut to a consistent size gives a repeatable, easy-to-handle specimen for routine batch QC.
Typical use: incoming rubber compound batch QC for Gujarat’s petrochemical flange gasket and PVC-adjacent seal manufacturers, where a quick hardness check on a rectangular strip gives a fast pass/fail read before committing the batch to production.
Complementary to other specimen types: many Gujarat labs prepare a rectangular hardness strip alongside dumbbell tensile and round compression-set specimens from the same sheet, covering three tests from one moulded slab. A rectangular block specimen cutter rubber compounders keep on the same bench as their dumbbell and round cutters is simply the third tool most complete rubber QC setups end up needing.
Whether your lab is in Ahmedabad, Surat, Rajkot or Vadodara, as a rectangle specimen cutter manufacturer Ahmedabad and laboratory equipment manufacturer Gujarat plants have sourced from since 2023, we dispatch rectangle cutters directly from our Wagle Estate, Thane factory – including testing instruments GIDC Vatva labs receive on scheduled delivery routes covering that cluster.
Standard | Specimen Configuration | Typical Dimensions | Application |
ASTM D395 (Type 1, standard) | Circular disc – Round Cutter | 29 mm or 13 mm diameter | Standard small-button compression set testing |
ASTM D395 (rectangular/custom) | Rectangular block – Rectangle Cutter | Fixture-specific, confirm before ordering | Larger flange gasket, expansion joint and PVC-adjacent seal compression testing |
ISO 815 (Type A, standard) | Circular disc – Round Cutter | 13 mm diameter, 6.3 mm thick (typical) | Standard ISO compression set testing, common for petrochemical plant supplier specifications |
ASTM D2240 (hardness) | Flat specimen, any shape – Rectangle Cutter suitable | Minimum ~6 mm thickness, adequate flat area | Shore A / Shore D hardness testing on incoming rubber compound |
Manufacturer, not a trader: Every rectangle cutter is designed, precision-ground and dimensionally verified at our Wagle Estate, Thane factory – not resold from another manufacturer.
ISO 9001 certified: Our manufacturing is ISO 9001:2015 certified and our equipment is CE marked.
NABL-traceable dimensional certification: Cutter dimensions verified and certified against the governing specification, supporting NABL-accredited lab audits and petrochemical plant supplier requirements.
Custom dimensions for compression fixtures: Since rectangular compression-set block dimensions vary by fixture design, we build cutters matched to your exact specification rather than a generic size. Every compression set specimen cutter rectangular fixtures require from us is built to that fixture’s drawing specifically, not adapted from a standard disc tool.
Scheduled delivery across Gujarat: Regular routes covering Ahmedabad/GIDC Vatva, Surat/Sachin GIDC, Rajkot/Metoda GIDC and Vadodara from our Thane factory.
Re-sharpening and replacement support: We offer blade re-sharpening and replacement service to keep your cutter producing clean, repeatable specimen edges.
| Product | Why Related |
For dumbbell/dogbone tensile specimens (ASTM D412, D638) |
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For tear strength testing (ASTM D624, ISO 34-1) |
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Labs testing paper tensile strips also test burst strength |
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Uses rubber strips cut by the strip cutter for compression set testing |
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The machine that runs tensile tests on cut strip specimens |
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Drives the rectangular die cutter through sheet material |
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For moulding rubber sheets from which strips are cut |
Tell us your application (compression-set block, hardness strip, or plastics flexural specimen), the exact dimensions your test fixture or standard requires, and your location in Gujarat. For rectangle cutter price Gujarat enquiries, we will confirm your exact specimen requirement first, then send a quotation – no invented figures, no generic pricing.
WhatsApp: +91 93241 37971 (click-to-chat)
Phone: +91 93241 37971 (click-to-call)
Factory & dispatch: C-1 New Kalwa Industrial Premises, Wagle Estate, Thane (W) 400604
All Equipments & specimen preparation products can be customised as per requirements.
A rectangle cutter for compression set is used when a compression-set test rig calls for a rectangular block or slab specimen rather than the standard small circular disc - relevant for Gujarat's petrochemical and chemical-plant sector qualifying larger flange gaskets and expansion joints in custom compression fixtures. For the standard ASTM D395 small-button disc specimen (29 mm or 13 mm diameter), a Round Cutter is the correct tool; the rectangle cutter addresses the rectangular-block configuration specifically. Is rectangle cutter different from round cutter in every respect? For compression set testing, yes - the two prepare geometrically different specimens for different fixture types and are not interchangeable.
ASTM D395 specimen dimensions for the standard Type 1 test are circular discs, either 29 mm or 13 mm in diameter, stacked to a total thickness of 12.5 ± 0.5 mm. This is the default, most commonly referenced configuration when a specification simply cites 'ASTM D395.' Rectangular block specimens are used only in custom compression fixtures designed around that geometry - confirm which configuration your test rig requires before ordering a cutter.
Yes. A rubber strip cutter for hardness test preparation is a genuinely accurate use of the rectangle cutter - Shore hardness testing (ASTM D2240) does not require a specific specimen shape, only adequate thickness (typically a minimum of 6 mm) and sufficient flat area for the durometer's indenter foot to seat. A rectangular strip cut to a consistent size gives Gujarat rubber labs a repeatable, easy-to-handle specimen for routine incoming-compound hardness QC.
We are a manufacturer. As a rectangle specimen cutter manufacturer Gujarat and rectangle specimen cutter manufacturer India testing labs have used since 2023, every cutter is designed, precision-ground and dimensionally verified in-house at our Wagle Estate, Thane facility - not purchased from another manufacturer and resold.
Yes. We are a rectangle cutter supplier Ahmedabad and rectangle cutter supplier Surat labs have sourced from directly, alongside Rajkot and Vadodara. Dispatch is from our Wagle Estate, Thane factory, with scheduled delivery routes covering Gujarat's testing-lab corridor.
