Digital tensile testing machine

Types of digital tensile testing machine

Instrument and equipment suppliers offer these tensile test machines in diverse types. That is because tensile tests differ by material application. Some tensile test machines work well with yarn and wire. Whereas, others suit textiles and rubber materials. Here are the common types of tensile testing machines:

• DIGITAL TENSILE TESTING MACHINES

  The digital tensile testing machine is a yardstick for tensile strength and yield strength. The machine uses a digital panel to track elongation and load values.

• Micro tensile testing machines

  Suppliers and manufacturers develop this machine to do micro tensile tests. It helps test biomaterials, microfibers, and thin films. Note that this machine works well for soft and slender materials.

• Hydraulic tensile testers

  Industry players widely use hydraulic tensile testers to do tensile testing on large specimens. This machine can develop a large magnitude of tensile force. In addition, they are well suited for heavy-duty applications.

• Automatic digital tensile testing machines

  The automatic digital tensile testing machine works best in large production. These machines have automated specimen alignment, stretching, and data capture. These reduce human error and enhance consistency.

• Instruments for Clamp

  In these machines, suppliers focus on the clamps' design for the specimens to test different materials. The clamps determine how suitable isolated materials will undergo tensile tests. Known tensile test machine clamps include:

  • Rubber tensile test machine clamps

  Manufacturers design rubber tensile test machine clamps to hold rubber samples firmly. The grips have a rubberized surface or indentation to prevent slipping.

  • Textile tensile testing machine clamps

  Textile clamps are narrow and have a smooth gripping surface. The surface is about 25 mm wide to ensure equal pressure across the fabric.

  • Wire tensile test machine clamps

  Wire clamps have two serrated jaws. The jaws bite into the wire for a firm grip with minimal deformation. Suppliers make some jaws with quick-release mechanisms.

Checking the tensile test machine's digital display

The digital panel in these tensile test machines is vital for precise measurements. Digital displays have a user-friendly interface to show real-time test progress. Here are the key parameters shown in the display:

• Load

  These tensile test machines load the weight applied to a specimen during a test. Users will find the load value, which is in Newtons (N) or pounds (lb), on the screen. This helps in getting the material's ultimate tensile strength (UTS).

• Elongation

  Digital displays keep elongation values as the material is stretched. They are in millimeters and help measure how tensile materials deform when stretched.

• Crosshead displacement

  The crosshead of a tensile machine moves at a fixed speed during the test. Crosshead displacement indicates how far it has moved from the start. Users will find this key parameter on the screen, too.

• Yield point

  Digital displays make yield point identification smooth. The yield point is where the material begins to deform permanently. Real-time showing of the yield point helps rapidly know the material's limit.

• Tensile Modulus

  The tensile test machines calculate the tensile modulus and show it on the screen. It is the load-to-elastic-strain ratio. The modulus value shows the material's elasticity level.

• Peak values

  Tensile gadgets also have peak load and elongation value indicators. They help easy peak value retrieval.

How to choose a digital tensile testing machine

Several factors guide industrial buyers as they select tensile testing machines. Here are those key factors:

• Testing requirements

  The prime aspect in material testing machine selection is the type of test it performs. That means buyers should go for machines that test samples in their industries. For instance, a tensile strength test machine suitable for fabric relies on textile clamps.

• Tension load capacity

  Buyers need to consider the maximum load the machine can develop. They must ensure that the load is above the tensile strength of the material. Those testing metals should go for machines that can develop a higher load limit.

• Precision and accuracy

  Buyers should consider the machine's gauge ability for elongation and load. Those conducting tensile tests on slender materials should get equipment with sub-Newton resolution. Also, machines with sub-millimeter elongation resolution work well for minute samples.

• Industry standards

  Tensile test machines usually conform to some standards. They include ASTM, ISO, and EN. Buyers should ensure the machine complies with the test standard applicable in their industries. Such a machine will produce results that are valid and credible.

• Machine control and operation

  Buyers should consider whether the machine is manual or automatic. Automatic machines are easy to operate, especially in large production. Those who opt for simple operations go for machines with a user-friendly interface.

• Material fixtures

  Appropriate clamps are important in this task. They include both the type and the material of the clamps. For example, a rubber tensile test machine tends to have clamps with rubberized inner surfaces. They prevent the specimen from slipping off when under tension.

• T-modes

  Tensile test machines have two modes: displacement and load. Buyers should go for machines with both modes. They enable the operator to switch easily between load and displacement control.

• Test speed

  Testing speed varies based on the material. For delicate materials, slow speed is necessary. In contrast, large specimens can go through tests at high speed. Buyers should ensure the machine speed range suits the material they test.

• Software

  Some modern tensile testers come with hooking software. The software helps in real-time data analysis and recording. It also allows for easy test parameter modification.

• Maintenance and support

  Buyers should consider the ease of maintaining the machine before purchasing it. They should also check for available spare parts and manufacturer support. This helps them avoid downtime when running the machine.

Q&A and professional tips for digital tensile testing machine

Q1: Which accessories go into digital tensile testing machines? And does each accessory work well for specific materials?

A1: Tensile test machines come with different accessories for distinct materials. Here are those standard accessories:

• Extensometers

  There are two common types of extensometers available. They are the contact and non-contact. Contact extensometers have metal or plastic clips that grasp the specimen. In contrast, non-contact ones use optical or video technology to measure elongation. They work well for slender or fragile materials. These extensometers work well for materials like metals and composites.

• Sigma gauges

  These gauges measure the radius of the material as it deforms during tensile testing. Suppliers and manufacturers of testing instruments use these gauges to monitor plastic deformations on the gauge.

• Load cells

  Load cells measure the force applied to the specimen. Manufacturers use precision load cells for high accuracy. The data then helps determine the ultimate tensile strength and yield strength.

• Crosshead

  The crosshead moves at a defined rate of extension. Machines with precise crosshead control allow for steady or fluctuating extension rates. This makes them suitable for diverse materials.

• Sample grips

  Manufacturers provide varying grips for distinct materials. For instance, rubber grips suit plastic materials. At the same time, serrated edges work well for metals. Having the right grip facilitates optimal results when testing these materials.

• Mercerization gauges

  Merzerization gauges are vital in assessing the extent to which fibers are mercerized. The gauges have accurate measurement marks to show the percentage of fiber immobilization after mercerization.

Q2: Which other machines do buyers from business centers consider purchasing along with digital tensile testing machines?

A2: In limited redundancy, buyers tend to purchase these machines alongside digital tensile testing machines. Here are those machines:

• Compressive strength test machines

  The compressive tensile test machine they buy has the same parameters as the tensile test machines. Both are indispensable testing items for companies involved with construction materials.

• Rockwell hardness testers

  Like tensile testers, these remarkable gadgets gauge material qualities. However, they determine hardness rather than tensile strength. They help assess the resistance capability of materials under heavy loads.

• Products

  These are digital brinell testers. Business buyers never forget to purchase these small-sized and efficient testers. They work like Rockwell hardness testers as they measure the hardness of materials like metals.

Q3: What is the recommended routine for caring for a digital tensile testing machine?

A3: With the right practices, business owners can prolong the lifespan of their tensile testing machines. Here are those recommended practices:

• Consistent cleaning

  Business owners should clean the machine daily after tests. They should use a dry cloth to wipe the exterior and grips. This helps remove dust and debris. They should also assess the machine weekly for signs of wear. For damaged components, they should replace them promptly.

• Proper lubrication

  Owners should frequently lubricate moving parts per the manufacturer's guidance. Lubrication minimizes friction and wear. This enhances the machine's internal parts' functioning and lifespan. However, they should avoid oversaturating the machine with grease. Excess grease attracts dust, which clogs the machine and affects performance.

• Calibration and software updates

  As stated above, business owners should calibrate the machine per the manufacturer's recommendation. That ensures precise readings. If the machine has software, they should update it regularly. These updates enhance the system's performance and provide new features.

• Protect the machine from moisture

  Moisture can damage internal components and create rust. So, owners should store the machine in a dry environment. Using a cover also reduces dust accumulation.

• Power surge protectors

  To protect the internal electronic components from power surges, business owners should invest in surge protectors. The protectors keep electronic components safe from sudden power fluctuations.

Specifications and applications of the digital tensile testing machine

Technical specifications of digital tensile testing machines

Suppliers usually prepare tensile testing tools with the following specifications:

• Maximum load

  Load, for instance, can go up to 10 KN for these testers. So, business owners select devices based on the most severe tests their materials can withstand.

• Test space

  Some digital tensile test machines have 600 mm spaces. This space enables users to conduct tensile tests on large materials.

• Crosshead speed

  Speed varies depending on the specimen. So, the crosshead rate ranges from 1 to 100 mm/min. It allows operators to adjust speed based on the material tested.

• Elongation

  These machines capture elongation up to 999.9 mm. Normally, this parameter varies based on the material under test. So, it's good for gadgets to have high elongation capture for versatile uses.

• Dimensions of the machine

  Buyers should consider the actual size of the tensile machine. The machines can measure up to 900 mm in height. Plus, they occupy up to 600 mm in width and 300 mm in depth.

• Display

  Digital tensile testing machines feature LCD displays. These displays measure 95 mm by 65 mm. Users enjoy testing with data presented clearly. A good screen also has backlight functionality. This improves visibility in dim areas.

• Power supply

  These machines operate at 220 volts. People power most of them via direct current.

Areas of application for digital tensile testing machine

• Textiles

  Manufacturers use tensile testing machines to check the strength of fabrics. They help ensure that clothing and other textile products embark on durability and stretchability tests.

• Plastics

  Plastics can be in the form of films or rigid containers. The strength and flexibility of plastics are critical to their safety and efficacy. So, manufacturers conduct tensile tests to evaluate these properties and ensure compliance with industry standards.

• Rubber

  In the rubber industry, tensile tests determine the elasticity and strength of rubber compounds. The results assist in formulating rubber materials for tires, seals, and gaskets. This helps improve performance and longevity.

• Construction materials

  Builders utilize these machines to check the tensile strength of concrete and steel. It helps ensure structural integrity and safety in buildings and bridges. The testing results guide engineers in making informed decisions about material selection.

• Aerospace and automotive

  Aerospace and automotive industries also rely on tensile testing machines. The tests ensure that metals and composites can withstand extreme conditions and loads. This provides safety in aircraft and vehicles.

• Metals

  Metal components undergo tensile testing to evaluate their strength and ductility. This aids in quality control and material selection for mechanical components.

• Biomedical devices

  There is a need for biomaterials to undergo tensile testing. So, tensile testing tools help assess the strength and flexibility of materials used in implants and prosthetics. This ensures they can endure bodily stresses.