Quick answer. First decide tension-only or universal frame. A tensile testing machine pulls; a universal testing machine pulls, pushes and bends. If every test you run is in tension - yarn, fabric strip, film, wire, adhesive bond, webbing - a tension-only machine such as TTM-0001 or TTM-0002 is often the better buy, because the budget goes into the load cell, the grips and the strain measurement rather than into a compression capability you will not use. If you also need compression, flexure or a three-point bend, choose a frame from the universal testing machines range. Then specify capacity, grips and strain, in that order.
Three records, coded TTM-0001 to TTM-0003: a computerised tensile testing machine, a tensile testing machine, and a break fixture for testing handles. The third is a fixture rather than a machine - it mounts on a testing machine and does nothing on its own - and its name appears to have a spelling error in our catalogue, so ask for its specification and the machine it fits before ordering it.
Where this listing ends and the universal machines begin. A tensile testing machine pulls. A universal testing machine pulls, pushes and bends, and the universal testing machines listing holds a wider set, including servo and servo-hydraulic frames, impact and cupping testers and the Rockwell and Brinell hardness machines. If every test you run is in tension - yarn, fabric strip, film, wire, adhesive bond, webbing - a tension-only machine is the cheaper and often better buy, because the money goes into the load cell, the grips and the strain measurement rather than into a compression capability you will not use. If you need compression, flexure or a three-point bend as well, buy the universal frame. That is the whole decision, and it is worth making deliberately rather than by default.
Three specifications decide whether a tensile machine produces data you can defend. Everything else - frame colour, touch screen, number of test templates - is secondary to these.
| Decision | What goes wrong when it is got wrong |
|---|---|
| 1. Load cell capacity | The commonest error is buying too big. Accuracy on a testing machine is normally quoted as a percentage of reading, valid only down to a stated fraction of capacity; below that fraction the machine is not specified at all. A machine sized for steel bar cannot be trusted on a yarn. Put your typical breaking loads in the upper part of the range, and if your materials span orders of magnitude, ask about interchangeable load cells rather than one compromise |
| 2. Grips | Grips are where tensile tests fail as tests. A specimen that breaks at the jaw has not been measured - the result is the grip, not the material. Each material family needs its own: wedge or pneumatic jaws for metals and plastics, roller or capstan grips for yarn and wire so the specimen is not cut by the jaw, flat faced rubber-lined jaws for coated fabric and leather, bollards for webbing. A machine quoted without grips is an incomplete quotation |
| 3. Strain measurement | Crosshead travel is not specimen strain. It includes the stretch of the whole load train and any slip in the grips, so a modulus or an elongation calculated from crosshead movement is wrong, sometimes badly. If your reports quote modulus or strain at a stated stress, you need an extensometer - clip-on or non-contact - and it has to be specified, calibrated and included |
Extensometers are listed in the universal machines range. Ask for one to be quoted with the machine if any of your methods require strain, because retro-fitting is usually more expensive than buying it at the start.
Speed and control mode. Standards specify either a rate of grip separation or a rate of increase of stress, and some specify a change of rate part way through a test. Ask which control modes the machine offers, what the speed range is at the slow end as well as the fast, and whether a method can hold, cycle or return automatically. A machine with one fixed speed will not satisfy a method that names a rate.
Frame stiffness and daylight. Ask the vertical test space between grips and the crosshead travel, because long-extension materials - elastomers, films, knitted fabric - run out of travel on a short frame long before they break. Ask the throat depth if you test wide specimens.
Verification, not just calibration. There is an international standard for verifying the force-measuring system of a static uniaxial testing machine, and it defines accuracy classes. Ask which class the machine is verified to, for the verification certificate, what range of force the verification covers and what a local re-verification costs. This is the single document a customer, an auditor or an accreditation assessor will ask for, and a machine with a calibration sticker but no verification certificate and class is a weaker position than it looks.
Software, on the computerised machine. What it calculates and reports; whether raw data exports in a format a spreadsheet reads; the licence terms and the cost of an additional seat; the operating systems it supports and whether it installs on the computers you actually have; and whether the machine can run a test and give a peak load without the computer, because a testing machine should outlive several generations of software. Ask also how test methods are stored, since a method library that cannot be backed up is a risk.
A tensile machine stores energy in the specimen and releases it at the break. On metals, wire and webbing that release is violent and fragments travel. Ask about the guarding: a polycarbonate screen or an interlocked enclosure, an emergency stop within reach of the operator, crosshead limit stops set so the machine cannot drive the grips together, and a safe arrangement for loading long specimens. On a hydraulic frame, ask about the pressure relief setting and where the pack discharges. And confirm the bolt-down requirement, because a floor-standing frame that is not anchored can move when a large specimen fails.
Load cell capacity and accuracy expressed as a percentage of reading with the lower limit of its valid range; verification class and certificate; crosshead speed range and control modes; vertical test space and crosshead travel; grips supplied, with the specimen types each suits, and the price of additional sets; extensometer type, gauge length and accuracy if strain is required; fixtures, including whether the handle break fixture fits the machine you are buying; software functions, licence terms, export format, supported operating systems and manual fallback; mass, footprint and bolt-down requirement; guarding and emergency stop arrangement; nominal voltage, frequency, phases and plug pattern; consumables and spares with prices, which here means grip faces, jaws, specimen dies and load cell service; and the warranty, commissioning and local service position. For any certification stated here, contact us for the latest copies of the relevant certificates before you rely on it in a tender or an accreditation file.
Related ranges: universal testing machines for compression, flexure, impact and hardness, fabric testing equipment and coated fabric testing equipment for textile-specific methods and grips, leather testing equipment, rubber testing equipment and plastic testing equipment for the materials most often pulled on these machines, and paper and packaging testing equipment for paper and board strength. The full set is listed under raw products testing. For a quotation, tell us the destination country, the materials and the standards you test to, your highest and lowest expected breaking loads and whether any method requires strain measurement - those four answers are enough for us to quote the right machine rather than the biggest one.
Smaller than most buyers expect: the commonest error is buying too big. Accuracy on a testing machine is normally quoted as a percentage of reading, valid only down to a stated fraction of capacity, and below that fraction the machine is not specified at all. A machine sized for steel bar cannot be trusted on a yarn. Put your typical breaking loads in the upper part of the range, and if your materials span orders of magnitude, ask about interchangeable load cells rather than one compromise. On the quotation, ask for accuracy as a percentage of reading with the lower limit of its valid range.
Grips are where tensile tests fail as tests: a specimen that breaks at the jaw has not been measured, because the result describes the grip, not the material. Each material family needs its own grips - wedge or pneumatic jaws for metals and plastics, roller or capstan grips for yarn and wire so the specimen is not cut by the jaw, flat faced rubber-lined jaws for coated fabric and leather, and bollards for webbing. A machine quoted without grips is an incomplete quotation, so ask which grips are supplied, the specimen types each suits, and whether additional sets are available.
If your reports quote modulus or strain at a stated stress, you need an extensometer. Crosshead travel is not specimen strain: it includes the stretch of the whole load train and any slip in the grips, so a modulus or an elongation calculated from crosshead movement is wrong, sometimes badly. The extensometer, clip-on or non-contact, has to be specified, calibrated and included. Extensometers are listed in the universal machines range; ask for one to be quoted with the machine, with its type, gauge length and accuracy, because retro-fitting later is usually the harder route.
Test standards specify either a rate of grip separation or a rate of increase of stress, and some change rate part way through a test, so ask which control modes the machine offers, the speed range at the slow end as well as the fast, and whether a method can hold, cycle or return automatically. A machine with one fixed speed will not satisfy a method that names a rate. Ask the vertical test space between grips and the crosshead travel, because elastomers, films and knitted fabric run out of travel on a short frame long before they break, and ask the throat depth for wide specimens.
Ask for verification, not just calibration. There is an international standard for verifying the force-measuring system of a static uniaxial testing machine, and it defines accuracy classes. Ask which class the machine is verified to, for the verification certificate, what range of force the verification covers, and how local re-verification is arranged. This is the single document a customer, an auditor or an accreditation assessor will ask for; a calibration sticker without a verification certificate and class is a weaker position than it looks. Contact us for the latest copies of the relevant certificates.
A tensile machine stores energy in the specimen and releases it at the break, and on metals, wire and webbing that release is violent and fragments travel. Ask about the guarding - a polycarbonate screen or an interlocked enclosure - an emergency stop within reach of the operator, crosshead limit stops set so the machine cannot drive the grips together, and a safe arrangement for loading long specimens. On a hydraulic frame, ask the pressure relief setting and where the pack discharges. Confirm the bolt-down requirement too, because an unanchored floor-standing frame can move when a large specimen fails.
Ray Export is a manufacturer and exporter of laboratory, scientific and educational equipment based at Plot No. 449, HSIIDC Industrial Area, Saha, Ambala, Haryana 133104, India. Enquiries: [email protected], +91-9817319615.
Written by Palak Mall, Senior Content Writer. Technically reviewed by Arvind Kumar, Lab Equipment Specialist, 12+ years in laboratory and testing instrumentation. Last updated: 17 October 2026.
Every specification, including load cell accuracy and its valid range, speed range, test space, grips and extensometer, is confirmed in writing on the quotation. For verification or other certificates, contact us for the latest copies of the relevant certificates. No price is quoted here. Listing defects noticed: the listing holds only three records, and TTM-0003, the break fixture for testing handles, is a fixture rather than a machine and its catalogue name appears to contain a spelling error.
It depends on the Constant Rate of Traverse (CRT) guideline. The example is held between two jaws; the upper one is a stationary jaw while the opposite end is made to move at a known settled speed with the assistance of Motor, Gear Box and Lead Screw course of action. The heap applied on the Stationary jaw is detected by a sensor associated with stack cell which specifically shows the heap in Digital shape in Newton and kg. Bona fide programming and RS232 Port associate with the PC.
Technical Details:
Specification | Model/Capacity |
Capacity of Load frame | 30, 50, 100, 250, 500, 1000 (KG) |
Load cell capacity | 30KG to 1000KG |
Display | LCD Display For Manual Use / RS232 Port Connect to the Computer Display |
Max. Crosshead Travel (excluding grip) | 950 mm |
Max. Working Width | 350 mm |
No. of Screws) | 1 no |
Load Measurement | By Load Cell |
Speeds : A) Standard : Speed Provided B) Optional : AC Variable Speed Drive | 2 speeds 100 / 300 mm / min 1 to 500 mm / min |
Elongation Measurement Standard : a) Digital Encoder b) Sensor 1 mm Resolution | 1 mtr. scale Optional L.C. : 0.01mm L.C. : 0.1mm |
Load Accuracy | + 1% |
Grip (Tensile Test) | Screw grip |
Overall Dimension L X D X H (approx. in mm) | 775 X 525 X 1825 |
Approx. Weight | 140 Kg |
Supply Voltage a) STD machine b) AC Variable speed drive machine | 3 phase : 415V : 0.25HP Single Phase |
Tractable Testing Machine - Tensile quality and prolongation are the two prime attributes of the greater part of the crude materials, regardless of whether they are metals; or non metals, for example, elastic, cowhide, materials, plastic, paper; or completed items, for example, poles, wires, ropes, yarns, belts etceteras. These two properties regularly assume a noteworthy part in deciding the appropriateness of any crude material for any predefined application. It is, in this way, of most extreme significance to decide these attributes precisely, helpfully, and rapidly. and The Globe Tensile Testing Machines give a moderately modest approach to deciding the elasticity and prolongation of an assortment of crude materials, for example, elastic, cowhide, texture, plastics, belts, wires, etceteras. They depend on consistent rate of cross guideline, in which one end of the test example is held in a stationery hold while the opposite end is moved at a known settled speed with the assistance of an engine, outfit box, and screw course of action. and In electronic kind tractable analyzers, the heap applied on the stationary hold is estimated by a heap cell and is shown on a computerized pointer. The pointer has a pinnacle drive maintenance memory which can be reviewed to show the most extreme load applied on the test example before its disappointment. An over-burden assurance transfer is given to consequently stop the engine if the heap applied goes over the greatest limit of the heap cell. and An assortment of grasps reasonable for holding distinctive materials or for leading diverse tests is accessible as discretionary embellishments. and Arrangement to plot stack versus stretching charts can be given against particular necessity. mechanical lab supplies producers.
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