What is the difference between the Izod test and the Charpy test?

The Izod test holds the specimen vertically as a cantilever — clamped at the bottom, free at the top — and the notched face points towards the pendulum. The Charpy test supports the specimen horizontally on two anvils as a simply-supported beam, with the notch on the back face away from the pendulum strike. Izod (ASTM D 256, ISO 180) is the most common in India and the USA; Charpy (ASTM D 6110, ISO 179) is common in Europe and for composites. Our impact tester runs both tests — you simply change the specimen mounting fixture.

Should I buy the Computerised model or the Analogue model?

Choose the Computerised Izod / Charpy Impact Tester if you need digital test reports for ISO 9001 or NABL audits, if you test tougher plastics requiring the 25 J capacity, or if you want graph plotting and automatic averaging of multiple results. Choose the Analogue model if you need a reliable economical impact tester for a small QC lab, polytechnic college or educational institute where digital reporting is not required. Both meet the same ASTM and ISO standards.

Why is the pendulum release angle always 150 degree?

ASTM D 256 and ISO 180 specify that the pendulum must be released from a fixed angle so the striking energy is consistent across every test and every laboratory worldwide. 150 degrees from the vertical is the standard release angle defined by these specifications — it gives the pendulum exactly the right potential energy at release. All our impact testers comply with this requirement.

Why are there four (or five) different scales on the same machine?

Different plastic specimens absorb very different amounts of impact energy. A brittle thin specimen may absorb only 0.1–0.5 J before breaking, while a tough engineering plastic may absorb 15–20 J. Using the right scale for the specimen gives the best accuracy — a 2.71 J scale reads a 0.5 J result much more accurately than a 25 J scale would. The operator simply selects the scale that best fits the expected impact energy of the specimen.

Do I need a notch cutter separately?

Yes. Izod and Charpy tests require a precisely cut V-notch in the specimen (typically 2.54 mm deep with 0.25 mm radius). The notch dimensions directly affect the measured impact value, so it must be cut accurately every time. We strongly recommend our Motorized Notch Cutter alongside the Impact Tester. We also supply a dedicated Micro-meter Jig to verify notch depth before testing.

Can the same machine test composites and FRP samples?

Yes, within the machine's capacity. Our Computerised model (25 J) can test most laminated plastic composites and lighter FRP samples. For very high-impact composites or laminated FRP with thick cross-sections, please contact us — we can supply higher-capacity custom-built impact testers if required.

What units are the impact results reported in?

Our Computerised model reports impact strength in Joules per metre (J/m) as per ASTM D 256, kg-cm/cm as per IS standards, and Joules as the raw energy value as per ISO 180. Conversion between units is automatic in the PC software. The Analogue model displays results directly in Joules — conversion to J/m or kg-cm/cm is done manually using the specimen cross-section.

Computerised Single Screw Tensile Testing Machine

Name: Single Screw Tensile Testing Machine
Brand: International Equipments
SKU: SSTTM
Availability: InStock

About Tensile Testing Machine — Computerised Single Screw Tensile Tester Manufacturer in India

Tensile tester for checking tensile and Elongation of Plastics and Rubber as per ASTM D 638 / ASTM D 882 / ASTM D 527 / ASTM D 412 standards.
To check properties of Tensile & elongation as per ASTM D 638 / ASTM D 882 & ISO 527 standards. This equipment will have additional built-in programs for Peel, Bond, Cyclic endurance based on time, counts, load and extension with auto stop & auto reverse facility.

International Equipments is a leading manufacturer, supplier and exporter of Computerised Tensile Testing Machines (Tensile Testers) in India. Built at our Mumbai facility, our Single Screw Tensile Tester is engineered for laboratories that need accurate, repeatable tensile strength and elongation measurement of plastics, plastic films, rubber, elastomers, adhesives, woven sacks, yarns, cords and other flexible or rigid materials.

Our Tensile Testing Machine performs more than just standard tensile testing. With the built-in 32-bit microcontroller and PC interface software, the same instrument runs Tensile, Peel, Bond and Cyclic Endurance test routines — making it a cost-effective, multi-purpose mechanical tester for polymer, film, packaging, rubber and adhesive industries. The economical single-screw drive keeps the price accessible without compromising on the accuracy demanded by ASTM and ISO test standards.

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Computerised Single Screw Tensile Testing Machine Manufacturer India — International Equipments

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Specifications Table

Parameter	Specification
Drive Type	Single Screw
Load Capacity	Up to 500 kg* (other capacities supplied as per requirement)
Number of Load Cells	One
Cross Travel	Up to 1000 mm*
Speed Range	Variable between 10 mm/minute and 500 mm/minute
Controller	32-bit microcontroller with direct display
PC Interface	Yes — graphic display, results and printout through PC
Test Modes	Tensile, Peel, Bond, Cyclic Endurance (based on time, counts, load or extension)
Auto Stop / Auto Reverse	Yes (built-in)
Paint Finish	Powder coated
Power Supply	230 Volts, 50 Hz, single phase

* Equipment with other capacities can also be supplied as per the customer's requirement.

What is a Tensile Testing Machine?

A Tensile Testing Machine — also called a Tensile Tester, Pull Tester or Tension Tester — is a laboratory instrument that applies a controlled pulling (tensile) force to a specimen until it stretches and eventually breaks. While the test runs, the machine continuously records the applied load and the resulting elongation, producing a complete load-versus-elongation curve. From this curve, key material properties such as tensile strength, yield strength, elongation at break, Young's Modulus and percentage elongation are calculated automatically.

Tensile testing is the most widely used mechanical test in the plastic, polymer, film, rubber and packaging industries. Every batch of plastic granules, every roll of film, every spool of yarn and every bonded joint must meet a minimum tensile strength specification before it is approved for production or dispatch. A reliable tensile testing machine is therefore essential laboratory equipment for QC labs, R&D centres and contract testing houses.

About Our Computerised Tensile Tester

Our Computerised Single Screw Tensile Tester is a robust, microcontroller-based instrument with a single lead-screw drive that moves the cross-head smoothly and accurately at speeds between 10 mm/minute and 500 mm/minute. The machine is supplied with a precision load cell, an auto-stop and auto-reverse system, and a full PC interface that records every test, plots the load-elongation graph and calculates all standard tensile properties automatically.

Beyond standard tensile testing, the built-in microcontroller carries pre-programmed routines for Peel testing (for adhesives, tapes and laminate seals), Bond testing (for bonded joints and coated substrates) and Cyclic Endurance testing (where the same load or extension is applied repeatedly over time or counts). This makes the Tensile Testing Machine a genuine multi-test laboratory instrument at a single-tester price point.

Customers can choose from a wide range of grips and fixtures supplied with the machine, allowing the same tester to handle thin plastic films, rubber strips, wires, yarns, woven sacks, adhesive tapes and small rigid samples — simply by changing the grip or fixture.

Tensile Tester Load vs Elongation Graph

Types of gripers

Pneumatic film grip for Tensile Tester — plastic film and laminate tensile testing

Wave grip for Tensile Testing Machine — HDPE PP polymer pipe strip tensile testing

Wire grip for Tensile Tester — wire and cable tensile testing

Self-tightening grip for Tensile Tester — rubber and elastomer testing

Three-point flexural fixture for Tensile Testing Machine

Compression plates fixture for Tensile Tester

Smaller wave grip for Tensile Tester — thin and narrow specimens

Roller grips for Tensile Testing Machine — stretchy and elastic materials

Results Displayed by the Tensile Tester

Direct Display on Microcontroller	Graphic Display & Printout through PC
Peak Load	Peak Load
Break Load	Break Load
Tensile Strength at Peak	Tensile Strength at Peak Load
Tensile Strength at Break	Tensile Strength at Break Load
Yield Load	Yield Load
Yield Stress	Yield Stress
% Elongation at Peak	% Elongation at Peak Load
% Elongation at Break	% Elongation at Break Load
Young's Modulus	Young's Modulus
—	Elongation at Peak Load
—	Elongation at Break Load
—	Load vs. Elongation Graph (graphic display & printout)
—	Average Value and Standard Deviation by Merging Multiple Tests

Built-in Test Programs

The tester is supplied with four pre-programmed test routines, all selectable from the controller — making it a genuine multi-test instrument:

Tensile Test
Standard pulling test until the specimen yields or breaks. Auto-calculates Peak Load, Break Load, Tensile Strength, % Elongation and Young's Modulus per ASTM D 638, ASTM D 882, ASTM D 527 and ASTM D 412.
Peel Test
Measures the force required to peel an adhesive layer, tape or laminate from a substrate at a controlled angle.
Bond Test
Tests the strength of a bonded joint between two layers or substrates.
Cyclic Endurance Test
Applies repeated load or extension based on time, count, load or extension to evaluate fatigue resistance.

Types of Grips & Fixtures Available

Our Tensile Testing Machine supports a wide range of grips and fixtures so that a single tester handles every common specimen type:

Pneumatic Grips
Air-actuated grips for thin films, foils and laminates.
Wave Grips
Self-tightening serrated grips for HDPE, PP and polymer strips.
Smaller Wave Grips
For thin or narrow specimens and small test pieces.
Wire Grips
For metal wires, cables and fine yarns.
Self-Tightening Grips
Roller-action grips that increase clamping force automatically.
Roller Grips
For rubber, elastomers and stretchable materials.
Flexural Fixtures
Three-point bending for rigid plastics and composites.
Compression Plates
For limited-range compression testing of small samples.

Single Screw Tensile Tester vs Twin Screw UTM — Which is Right for You?

Single Screw Tensile Tester (This Model)

Economical single-screw drive optimised for tensile testing of plastics, films, rubber, adhesives, yarns and woven sacks. Load capacity up to 500 kg covers most of the polymer film, rubber, fabric and adhesive QC requirements.

Built-in Peel, Bond and Cyclic Endurance programs add flexibility without raising the price.

Best choice for plastic film manufacturers, rubber units, packaging plants, adhesive producers, woven sack and FIBC industries, and small-to-medium polymer QC laboratories.

Twin Screw Universal Testing Machine (UTM)

Higher-end twin-screw drive with load capacity up to 5000 kg, cross-head speed from 0.5 to 800 mm/minute, and full compression and flexural test capability.

Twin-screw geometry gives smoother motion under heavy loads.

Best choice for FRP and composite manufacturers, plastic pipe units requiring compression testing, research labs needing full modulus analysis, and NABL-accredited test houses.

See our Universal Testing Machine page for full details.

Technical Information

ASTM D 638 — Tensile Properties of Plastics
ASTM D 882 — Tensile Properties of Thin Plastic Sheeting (Films)
ASTM D 527 — Older designation, equivalent to ASTM D 638
ASTM D 412 — Tensile Properties of Vulcanized Rubber and Thermoplastic Elastomers
ASTM D 903 — Peel or Stripping Strength of Adhesive Bonds
ISO 527 — Plastics: Determination of Tensile Properties
ISO 37 — Rubber Tensile Stress-Strain Properties
IS 2508 — Tensile Strength of LDPE Films (Indian Standard)
IS 13360 — Polypropylene Compounds for Moulding (Indian Standard)

Tensile strength and % elongation of HDPE, LDPE, LLDPE, PP, PVC granules and moulded samples
Film tensile testing — plastic films, laminates, multi-layer packaging films per ASTM D 882
Rubber tensile testing — vulcanised rubber, TPE, EMDM and elastomeric compounds per ASTM D 412
Yarn, cord, twine and FIBC strap tensile strength
Woven sack and raffia tape tensile testing
Peel strength of adhesive tapes, labels and laminates
Bond strength testing of glued joints, coated substrates and laminated sheets
Cyclic endurance and fatigue testing of polymers and elastomers
Wire, cable and fine-gauge metallic strip tensile testing
QC incoming inspection of polymer raw material and finished products

Plastic Film & Flexible Packaging Industry
Plastic Pipe Manufacturers (HDPE, PPR, PVC, PEX)
Rubber, TPE & Elastomer Producers
Adhesive, Tape & Label Manufacturers
Woven Sacks, FIBC, Raffia Tape & Yarn Industries
Recycled Plastic Processors
HDPE PLB Duct Manufacturers
Polymer Master-batch & Compounding Units
Wire, Cable & Conductor Industry
Textile Mills, Cord & Twine Manufacturers
Quality Testing Laboratories & Educational Institutes

Multi-Test in One Machine — Tensile + Peel + Bond + Cyclic Endurance — all pre-programmed into a single instrument so one tester replaces four specialised machines.
Economical Single Screw Design — Single-screw drive keeps the price accessible while still delivering ASTM and ISO compliant accuracy for the majority of polymer, film and rubber test specifications.
Auto Stop & Auto Reverse — Automatic protection of load cell and automatic return of cross-head to home position — no operator intervention between tests.
Direct Microcontroller + PC Display — Results shown on the controller AND exported through PC software with full load-elongation graph and statistical merging of multiple tests.
Wide Grip Library — Eight grip and fixture types — pneumatic, wave, smaller wave, wire, self-tightening, roller, flexural and compression — to handle any specimen geometry.
Up to 500 kg Capacity, 1000 mm Travel — Generous load and travel range covers virtually every polymer, film, rubber and yarn test requirement without over-spec'ing.
ISO & CE Certified — Designed and built at our Mumbai facility under ISO certified quality systems, CE mark for export.

FAQs

What is the difference between a Tensile Testing Machine and a Universal Testing Machine?

A Tensile Testing Machine is built primarily to apply tensile (pulling) load, with optional Peel, Bond and Cyclic Endurance routines. A Universal Testing Machine performs tensile, compression AND flexural testing on the same frame with much higher load capacity. If your lab mainly tests plastic films, rubber, adhesives, yarns and woven sacks up to 500 kg, the Tensile Testing Machine is the more economical and appropriate choice. If you also need full compression testing of plastic pipes or flexural testing of FRP/composites at higher loads, the Universal Testing Machine is the right pick.

What is the load capacity of the Single Screw Tensile Tester?

Our standard Single Screw Tensile Testing Machine offers a load capacity of up to 500 kg. We can also supply custom capacities (lower for fine films and yarns, higher for stronger materials) as per the customer's specific requirement. Please share your sample type and expected breaking load — our team will recommend the optimal capacity.

Which test standards does this machine support?

The Tensile Testing Machine supports all major international and Indian tensile-testing standards: ASTM D 638 (plastic tensile), ASTM D 882 (film tensile), ASTM D 412 (rubber tensile), ASTM D 903 (peel), ISO 527 (plastic tensile), ISO 37 (rubber tensile), plus Indian standards IS 2508 and IS 13360. The pre-programming facility lets the operator save test routines for each standard and recall them with one keystroke.

Can the same machine do Peel and Bond testing?

Yes. The microcontroller has built-in Peel, Bond and Cyclic Endurance programs along with the standard Tensile program. The operator simply selects the test mode, fits the appropriate grip or fixture, loads the specimen and presses Start. Auto-stop and auto-reverse handle the rest.

How does Cyclic Endurance testing work on this machine?

Cyclic Endurance mode applies a controlled load or extension to the specimen repeatedly, based on a user-defined trigger — time, number of counts, target load or target extension. After each cycle the auto-reverse brings the cross-head back to the start position. This is ideal for fatigue testing of polymer specimens, elastomers, adhesive joints and bonded products.

Do you supply grips with the Tensile Tester, or are they sold separately?

Each Tensile Testing Machine is supplied with the standard grips most suited to the customer's primary application (mentioned in the quotation). Additional grips — pneumatic, wave, wire, yarn, self-tightening, roller, flexural fixture, compression plates — can be ordered along with the machine or added later. We also manufacture custom grips for unusual specimen shapes.

What software comes with the machine?

A Windows-compatible PC interface software is supplied free with every Tensile Testing Machine. It plots the live Load-vs-Elongation curve, calculates all tensile results, merges results from multiple tests to compute average and standard deviation, and exports test reports suitable for ISO 9001 QC documentation. Software updates are provided to AMC customers at no extra charge.

Is the Single Screw Tensile Tester suitable for FRP / Composite testing?

For lighter FRP and composite samples within the 500 kg load range, yes. However, FRP and composite testing typically requires higher loads, full flexural-test capability and very high modulus accuracy — for those applications we recommend our Twin Screw Universal Testing Machine (UTM) with capacity up to 5000 kg and dedicated flexural fixtures.

Do you provide installation, training and calibration?

Yes. We provide free on-site installation, commissioning, operator training and a factory calibration certificate at the customer's location anywhere in India. Annual Maintenance Contracts (AMC) and periodic recalibration are available through our service network. International customers receive commissioning support remotely with detailed documentation; on-site international installation can be arranged at additional cost.

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Tensile Testing Machine — Computerised Single Screw Tensile Tester Manufacturer in India

About Tensile Testing Machine — Computerised Single Screw Tensile Tester Manufacturer in India