Precise force, elongation and strength measurement for rubber, plastic, metal, leather, packaging and various other materials

A Universal Testing Machine is a versatile laboratory and quality control system used to evaluate the mechanical properties of materials under controlled test conditions. It enables the determination of tensile strength, compression resistance, elongation, flexural behavior, tear resistance, peel strength, shear force and adhesion strength.

Knowing how raw materials, semi-finished products and finished products react to the forces they may encounter during actual use is essential for reliable quality assessment. A product may appear visually acceptable while still failing to meet the required mechanical performance. Without measuring its behavior under pulling, compression, elongation, separation or deformation, it is difficult to make a reliable assessment of its durability.

The Universal Testing Machine can be used for rubber, plastics, footwear components, leather, metals, wires, packaging materials, wood and many other product groups. Its compatibility with different grips, fixtures and elongation measuring systems allows the machine to be adapted to a wide variety of specimens and test methods.

Main Purpose of the Machine

The primary purpose of the Universal Testing Machine is to determine the mechanical strength of a specimen by applying controlled tensile or compression forces. During testing, the applied force, elongation or deformation of the specimen, and the point of rupture or separation can be recorded and evaluated.

The system can be used to assess performance characteristics such as:

  • Maximum tensile force

  • Breaking strength

  • Compression resistance

  • Elongation

  • Flexural behavior

  • Tear resistance

  • Peel force

  • Shear force

  • Adhesion strength

  • Elastic or permanent deformation behavior

The results obtained from the machine can support product development, raw material selection, production control, supplier evaluation and pre-shipment quality verification processes.

What is a Universal Test?

A universal test refers to a group of mechanical testing methods used to measure how a material behaves when subjected to different types of force. The term “universal” indicates that the same testing system can be used for multiple test procedures when fitted with suitable grips, fixtures and accessories.

In a tensile test, the specimen is held from both ends and pulled apart at a controlled speed. In a compression test, the specimen is compressed between two surfaces. Peel and adhesion tests measure the force required to separate bonded layers. Tear tests evaluate the resistance of a material to the propagation of an existing cut or tear initiation point.

The common purpose of these tests is to reproduce, under controlled laboratory conditions, the mechanical stresses that a product may encounter during real use.

Importance and Purpose of the Test

Mechanical strength testing is an important part of quality control because mechanical performance directly affects product reliability and service life. Products that are exposed to tension, compression, bending, peeling or adhesion forces should be tested to verify that they can withstand the expected service conditions.

The main purposes of testing include:

  • Determining whether a material meets defined performance requirements

  • Detecting quality differences between production batches

  • Evaluating how raw material changes affect product performance

  • Comparing different product designs

  • Identifying production defects at an early stage

  • Reducing the risk of rupture, separation or excessive deformation

  • Evaluating compliance with customer specifications

  • Generating measurable and comparable quality records

Regular testing helps not only to identify defective products but also to improve production processes. When results are monitored over time, changes in process stability and product quality can be identified more easily.

Scientific Basis of the Test

The scientific basis of universal testing lies in measuring the relationship between the force applied to a specimen and the deformation produced in the material. The testing machine detects the applied load through its force measurement system, while the motion control system applies force to the specimen in a controlled direction and at a defined speed.

During a tensile test, the specimen elongates while the applied force is continuously measured. In the initial stage, the material may behave elastically, meaning that it can substantially return to its original shape after the load is removed. As the force increases, permanent deformation may begin, eventually followed by rupture.

In compression testing, the deformation of a material under compressive force is measured. This approach can be used to evaluate crushing resistance, shape retention or compressive behavior in materials such as foams, packaging components, plastics and rubber products.

In peel and adhesion tests, the force required to separate two bonded surfaces is measured. The obtained values can provide useful information about adhesive performance, surface preparation, coating quality, lamination processes and production conditions.

Recording force and movement data at a high acquisition rate allows the operator to analyze not only the final break point but also the material behavior throughout the entire test.

Use of the Machine

Before the test begins, the specimen is prepared according to the selected testing method. The specimen shape, surface condition and positioning between the grips can directly affect the result, so careful preparation is important.

First, suitable grips or fixtures are selected according to the type of test. Tensile tests require grips capable of holding the specimen securely without excessive slipping or premature damage. Compression tests require suitable compression fixtures, while peel, tear and adhesion tests may require specific accessories depending on specimen geometry.

After the specimen has been positioned correctly, the test parameters are defined. These may include test speed, movement direction, force limit, stopping criteria and data acquisition settings.

When the test starts, the AC servo motor-controlled motion system applies force to the specimen in a controlled manner. Data from the force measurement and movement systems are transferred to the computer. At the end of the test, maximum force, breaking point, elongation behavior and the relationship between force and movement can be evaluated.

For reliable results, correct specimen alignment, suitable grip pressure and an appropriate test speed are essential. Slippage, misalignment or failure near the grip area may influence the measurement result.

Technical Information

The load resolution of the machine can be configured as 1/200,000 or 1/300,000. It can also be defined according to user requirements when necessary. High load resolution supports more detailed monitoring of small force variations, especially during sensitive testing applications.

The load range operates without the need for separate measurement ranges, allowing full-scale measurement under the same amplification configuration.

The speed accuracy is ±0.5%. Controlled test speed contributes to repeatable and comparable results between specimens. This is especially important in tensile, peel and adhesion tests, where changes in testing speed may affect the measured values.

The movement resolution is 0.00003 mm. This high level of resolution supports the detection of very small changes in specimen movement and deformation.

Computer data acquisition can be performed at 200 measurements per second or, depending on the configuration, 500 measurements per second. A high acquisition rate is particularly useful for observing fast mechanical events such as rupture, tearing, slipping or sudden bond separation.

The communication interface is USB 2.0, allowing test data to be transferred to a computer for monitoring, recording and evaluation.

The motion system is driven by an AC servo motor. Servo motor technology enables precise control of speed, direction and movement throughout the test, supporting stable and repeatable operating conditions.

The electrical power configuration can be adapted to the facility infrastructure and user requirements. The machine can operate with three-phase power configurations at either 50 Hz or 60 Hz.

Different grips and elongation measuring devices can be added according to the intended testing application. This enables the machine to be adapted to different materials, specimen types and test procedures.

Advantages

One of the main advantages of the Universal Testing Machine is its ability to perform multiple mechanical tests on a single platform. This can reduce the need for separate test systems for each application and help laboratories organize testing procedures more efficiently.

Key advantages include:

  • Suitability for tensile, compression, elongation, flexural, tear, peel, shear and adhesion tests

  • Compatibility with different material groups

  • Precise force and movement measurement

  • Controlled and stable test speed

  • High-frequency data acquisition

  • Computer connectivity for digital result monitoring and recording

  • Adaptability through different grips and accessories

  • Generation of comparable data for product development and quality control

  • Support for repeatable testing conditions

Technical Advantages

High load resolution allows small changes in force to be monitored in greater detail. This feature supports sensitive peel and adhesion measurements as well as higher-force tensile and compression applications.

The high movement resolution supports detailed evaluation of specimen deformation. It is particularly valuable in applications where elongation, flexibility and elastic behavior need to be analyzed precisely.

The AC servo motor enables stable and controlled test speeds. Stable speed control is important for improving the comparability of results obtained from different specimens.

The high data acquisition rate reduces the risk of missing sudden force changes during testing. Rapid events such as rupture, tearing or sudden adhesive separation can therefore be recorded in greater detail.

The ability to use different grips and elongation measurement systems makes it easier to adapt the machine to different testing requirements. This allows a single system to be used for quality control across a wide range of materials and product groups.

Contribution to Quality Control

The Universal Testing Machine supports quality control processes by providing measurable and recordable test results. Mechanical weaknesses that cannot be identified through visual inspection alone can be evaluated through numerical data.

Regular testing of production samples helps identify differences between batches. Results below the expected performance level may indicate issues related to raw material quality, production temperature, formulation, bonding conditions, surface preparation or process settings.

Comparing current test data with historical production results supports the monitoring of quality trends. This makes it easier to identify potential production problems before products reach the customer.

The machine can also support research and development activities by enabling different materials and production methods to be compared. The effects of design or formulation changes on tensile, compression, tear or adhesion performance can therefore be measured directly.

Support for Export and Certification Processes

For products intended for export, verification of mechanical performance is important for demonstrating consistency and compliance with customer expectations. Numerical test results obtained with the Universal Testing Machine can support the evaluation of products against customer specifications or internal quality criteria.

Regularly maintained test records can also contribute to demonstrating that quality control activities are carried out systematically. Test results may be used as supporting data during customer audits, supplier assessments, product development documentation and quality management activities.

For certification or conformity assessment processes, the applicable test method and acceptance criteria should be determined according to the requirements of the relevant organization or specification. When suitable grips, fixtures and test parameters are selected, the Universal Testing Machine can support the mechanical measurements required within these processes.

Areas of Use

Rubber Industry

Tensile strength, elongation, tear resistance and flexibility are important performance characteristics for rubber products. Seals, hoses, sheets, profiles and similar rubber components can be evaluated using the machine.

Plastics Industry

Plastic raw materials, sheets, films, molded parts and finished plastic components can be subjected to tensile or compression tests. The results can support material selection and optimization of production parameters.

Footwear Industry

Soles, uppers, bonded components and layered structures can be evaluated through tensile, peel, flexural and adhesion tests. These tests help assess the risk of opening, separation or mechanical failure during use.

Leather Industry

Natural and synthetic leather materials can be tested for tensile strength, elongation, tear resistance and layer separation behavior. The results provide useful information about processability and service durability.

Metal and Wire Products

Metal specimens and wire products can be tested for tensile force, breaking behavior and elongation. These tests help verify material quality and production consistency.

Packaging Industry

Packaging films, tapes, bags, sealed areas and similar materials can be tested for tensile strength, tear resistance, peel force and adhesion. These measurements are important for evaluating whether the packaging can maintain its mechanical integrity during handling, transportation and storage.

Wood and Timber Products

Wood-based and timber specimens can be evaluated for compression, tensile behavior or connection strength depending on the test setup. These tests support the assessment of structural behavior and suitability for intended use.

Adhesive and Lamination Applications

Bonded surfaces, coatings and multilayer materials can be tested for peel and adhesion strength. The results can support the evaluation of adhesive selection, application quantity, curing conditions and surface preparation quality.

Standards

No standards were specified under an “Applicable Standards” or “Relevant Standards” section in the provided product information. Therefore, no standard number or additional standard reference has been included.

Conclusion

The Universal Testing Machine is a versatile test system designed to measure important mechanical properties such as tensile strength, compression resistance, elongation, flexural behavior, tear resistance, peel force, shear force and adhesion strength. Its suitability for rubber, plastics, leather, footwear, metals, wires, packaging materials and wood makes it useful for both laboratory and production quality control applications.

High load resolution, precise motion control, AC servo motor technology and high-frequency data acquisition contribute to accurate, detailed and repeatable test results. The ability to use different grips and elongation measuring systems also makes it easier to adapt the machine to different specimen types and testing requirements.

Evaluating mechanical performance through numerical data is important for reducing production defects, improving product reliability and maintaining consistent quality. The Universal Testing Machine helps manufacturers understand material behavior in greater detail and supports quality decisions based on measurable test results.