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Test Fixtures

UnitedTest offers versitle Custom UTM Fixtures according to widely ISO, ASTM, EN, DIN etc., international standards. UnitedTest mechanical test fixtures and clamps come in a variety of designs and materials and can be customized according to different types of samples and testing requirements. Include metals, polymers, composites, or other materials, unitedtest provide suitable fixtures, clamps, and accessories to achieve effective and reliable data. Our accessories are compatible with UnitedTest material testing machines as well as other brands like Instron, MTS, Zwick and more, capable of handling various forces and environmental conditions without compromising the integrity of the tests. 

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Peeling test

Peel testing is a basic mechanical test used to measure the performance of adhesive bonds. Peeling test involves applying a tensile force to a flexible substrate joined by an adhesive, which can be bonded to another flexible substrate (such as tape, film, or rubber) or a rigid substrate (such as metal, rigid plastic, or composite). UnitedTest have a wide range of peel testing equipment that can be configured for your exact test application. 


Our Peel Test Fixtures are designed to help laboratories and manufacturers test a wide range of bonded materials with greater consistency. Whether your application requires a 90° peel, 180° peel, T-peel, loop tack, climbing drum peel, or variable-angle setup, the right fixture can improve repeatability and support more dependable results. Suitable for a wide range of materials, including adhesives, labels, packaging films, laminated coatings, rubber, textiles, and sealants. Available in configurations aligned with widely used standards such as ASTM D903, ASTM D3330, ASTM D6252, ASTM D6862, ISO 8510-1, ISO 11339, and related methods.


Custom Solutions Available

Every material behaves differently during peel testing. That is why we also offer customized UTM fixture solutions based on your specimen size, peel angle, load capacity, substrate type, and testing standard. If you need a fixture matched to a specific adhesive system or product design, our team can help you select the most suitable setup.


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Tensile

The tensile test, also known as tension test, is the most fundamental and widely used mechanical property test in the field of material science and engineering. It evaluates a material’s behavior under axial tensile loads, measuring core performance indicators such as tensile strength, yield strength, elongation at break, and elastic modulus. These parameters directly determine a material’s ability to withstand stretching forces in practical applications, serving as the cornerstone for material selection, product design, quality control, and R&D innovation across industries. UnitedTest, a professional provider of mechanical testing equipment, offers high-precision tensile testing systems with customizable configurations, ensuring accurate, repeatable, and reliable test results for diverse materials and scenarios.


UnitedTest supplies tensile test fixtures and grips for films, adhesives, textiles, glass fibers, wood fasteners, steel pipes and other materials or components. Available solutions cover applications ranging from low-force film testing to heavy-duty pipe and component testing, with configurations designed around ASTM, ISO, EN and other recognized test standards.


UnitedTest custom UTM Fixtures can be selected or customized according to the specimen shape and dimensions, required load capacity, gripping method, testing standard and machine connection. 

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Compression

The compression test is one of the most fundamental and widely used mechanical property tests, focusing on evaluating a material’s behavior under axial compressive loads. It measures key performance indicators such as compressive strength, yield strength, compressive modulus, and deformation capacity, which are critical for determining a material’s suitability for applications where it must withstand squeezing, pressing, or crushing forces. This test is applicable to almost all solid materials, from metals and plastics to composites and building materials, and serves as a cornerstone for material R&D, quality control, and structural design across industries. UnitedTest, a professional provider of mechanical testing equipment, offers high-precision compression testing systems tailored to diverse industrial needs, ensuring reliable and repeatable test results.


Available solutions include compression platens, pipe flattening fixtures, radial compression fixtures and application-specific test accessories designed to support standards such as ASTM D695, ASTM D2412, ASTM F3036, ASTM C133, ISO 25539-2 and EN 61386-1.


Each compression fixture can be matched to the required specimen dimensions, test standard, load range and testing machine interface. Whether you need a standard fixture or a customized compression testing solution, UnitedTest can help you select the appropriate configuration for accurate, repeatable and efficient testing.


Contact us with your test standard, specimen drawing, material type and required load capacity to receive a recommended UTM fixture and quotation.

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Flexural

The flexural test, also known as the bending test, is a fundamental mechanical property test that evaluates a material's ability to withstand bending loads without fracture or permanent deformation. It focuses on measuring key performance indicators such as flexural strength, flexural modulus (stiffness), and flexural strain, which are critical for assessing how materials behave under non-tensile or compressive stress conditions in practical applications.


UnitedTest supplies 3-point and 4-point flexural test fixtures for measuring flexural strength, modulus, stiffness and bending performance. Our UTM fixtures are available for plastics, composites, metals, concrete, ceramics, wood and medical components, with load capacities ranging from 50 N to 2,000 kN. Adjustable spans, loading noses, support rollers and fixture dimensions can be configured to meet ASTM D790, ISO 178, ASTM E290, ASTM C78 and other applicable standards.


Tell us your material, specimen dimensions, test standard and required load range. Our engineers will recommend a suitable flexural test fixture or develop a customized solution for your testing machine.

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Tear

The tear test is a critical mechanical property evaluation method designed to assess a material’s ability to resist the propagation of a pre-existing crack or tear under applied force. Unlike tensile tests that focus on uniform stretching, tear tests simulate real-world scenarios where materials encounter localized damage (e.g., a nick in a film, a cut in fabric) and measure the force required to extend that damage. Key indicators derived from this test include tear strength, tear energy, and tear propagation resistance, which are essential for determining the durability and reliability of flexible and semi-rigid materials. 


UnitedTest, a professional provider of mechanical testing equipment, offers precision tear strength test fixtures for evaluating the tear strength and tear propagation resistance of plastic films, thin plastic sheets, fabrics, rubber, textiles, packaging materials, and other flexible materials.


Our tear testing fixtures are designed for secure specimen gripping, stable load transfer, and repeatable test results. Available solutions include fixtures for ASTM D1004 plastic film tear testing and ASTM D4533 fabric tear testing, with configurations compatible with different specimen types, force ranges, and universal testing machines.


Tell us your material, test standard, specimen dimensions, expected force range, and testing machine model. Our engineers will help you select a compatible UTM fixture or develop a customized tear testing solution for your laboratory, quality control, or product development requirements.

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Shear

The shear test is a critical mechanical property evaluation method that assesses a material’s ability to resist tangential forces that cause adjacent internal material layers to slide past each other. Unlike tensile or compression tests that focus on axial loads, shear tests simulate real-world scenarios where materials endure parallel, opposing forces—such as bolted joints under load, adhesive bonds, or structural components subjected to lateral stress. Key indicators derived from this test include shear strength, shear modulus, and shear strain at failure, which are essential for ensuring the structural integrity and reliability of materials and components. UnitedTest, a professional provider of mechanical testing equipment, offers shear test fixtures for evaluating the shear strength of composites, adhesives, rivets, rods, wires, coatings and other industrial materials. Our shear test fixture solutions support single shear, double shear, lap shear, Iosipescu shear and shear loading compression tests in accordance with ASTM F1044, ASTM F1160, ASTM B565, ASTM D4255, ASTM D5379, ASTM D3410, ISO 10123 and other relevant standards.


Available for test loads from 5 kN to 300 kN, these shear testing fixtures can be matched with UnitedTest universal testing machines or adapted to compatible third-party systems. Fixture dimensions, specimen holders, working holes, connection threads and loading capacity can be customized according to your specimen and testing method.

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Send us your test standard, specimen dimensions, material type, required load and testing machine model. Our engineers will help you select or configure the appropriate shear test fixture.


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Puncture

The puncture test is a critical mechanical property evaluation method designed to assess a material’s ability to resist localized penetration or rupture when subjected to a concentrated load from a sharp or blunt probe. Unlike tensile or flexural tests that focus on uniform stress, puncture tests simulate real-world scenarios where materials encounter sudden, point-like impacts or forced penetration. This test is widely used for flexible materials (e.g., films, fabrics) and rigid materials (e.g., plastics, metals, composites) alike, providing key data on puncture strength, puncture energy, and failure modes.


UnitedTest supplies puncture test fixtures for measuring the puncture resistance, penetration force and failure behavior of textiles, geotextiles, flexible packaging, plastic films and other sheet materials. Our puncture testing fixtures support ball burst, CBR puncture, film penetration and flexible packaging puncture tests in accordance with ASTM D3787, ASTM D6797, ASTM D6241, ASTM F1306, ISO 12236 and BS EN 14477. Available test capacities range from 1 kN to 50 kN, with different probes, clamping rings and specimen holders provided for specific materials and testing methods.


The fixtures can be matched with UnitedTest universal testing machines or configured for compatible third-party systems. Probe dimensions, clamping structure, connection interface and load capacity can also be customized according to your testing standard and specimen requirements. Send us your test standard, material type, specimen thickness, required load and testing machine model. Our engineers will recommend the appropriate puncture test fixture for your application.

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Auxiliary Device

Testing machine auxiliary device include the high/low temperature chamber, split furnace, video extensometer, long travel extensometer, sample marking equipment etc., 

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Accessories

Testing accessories include the different test sample, contact type extensometer etc., 

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FAQ

Q1. What are custom UTM fixtures used for?
Custom UTM fixtures are used to hold and support non-standard specimens during mechanical testing, ensuring stable clamping, correct alignment, and reliable test results.

Q2. Can custom fixtures be made for different specimen shapes?
Yes. Fixtures can be designed for flat, round, irregular, delicate, or oversized samples depending on the test method and material type.

Q3. Which test types can custom fixtures support?
Custom fixtures can be used for tensile, compression, flexural, peel, tear, shear, puncture, and other special mechanical tests.

Q4. Are custom UTM fixtures compatible with existing test machines?
Yes. Custom fixtures can be designed to match different universal testing machine interfaces and can be adapted for major brands when needed.

Q5. What materials can be tested with custom fixtures?
Custom fixtures can be made for metals, plastics, polymers, rubber, composites, adhesives, textiles, packaging, and more.

Q6. Do custom fixtures need to follow test standards?
Yes. In many projects, the fixture design should support the relevant ASTM, ISO, EN, or DIN test method to ensure repeatable and valid results.


Require More Customized Solutions?

We offer customization to meet your specific needs. Our expert team will collaborate with you to develop the perfect product for you
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Beijing United Test Co., Ltd.