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Home >> Products >> Industrial Specialized Testing >> Abrasion & Wear Test >> Brake lining compress strain & thermal expansion testing machine

ISO 6313 brake pad thermal expansion tester

Brake lining compress strain & thermal expansion testing machine

Model: UT1058-CSTE, ISO 6313, ISO 6310

UnitedTest is a professional manufacturer of automotive friction material laboratory test equipment, supplying brake lining compressive strain and thermal expansion testing machine fully compliant with ISO 6310 and ISO 6313 standards. This integrated test bench combines compressive strain test function per ISO 6313 and thermal expansion‑dimensional growth measurement function per ISO 6313 in one single frame, widely used for disc brake pad assemblies, brake lining coupons and friction material sample quality control, material formulation development and automotive brake component certification testing.

Target test objects include original equipment disc brake pads, aftermarket brake linings, cut friction‑material coupon specimens, bonded or moulded brake pad assemblies with backing plates. It measures room‑temperature compressibility, hot compressibility at elevated temperature, compressive strain value, pad thermal swell, thermal growth, backing‑plate temperature transfer, and dimensional change caused by heat load, which are critical parameters for evaluating brake pedal travel, brake fluid displacement, brake judder and noise risk of road‑vehicle brake systems.

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General Introduction

Brake Lining Compressive Strain & Thermal Expansion Testing Machine | ISO 6310 ISO 6313 | UnitedTest

UT1058-CSTE Brake pad compression strain and thermal expansion tester is used to measure the compression strain of brake pad assemblies, whether disc brake or drum friction materials, from cut samples; it also measures the thermal expansion and heat transfer properties of disc brake pads. The compression strain of brake pads is an important design parameter, useful for evaluating the required fluid volume for initial braking, brake pedal travel, and the tendency for brakes to cause vibration or noise. It's also part of the brake pad characteristics and a parameter for quality control.

This tester can measure the compression rate of brake pads under both normal and high temperatures, helping to assess the compression strain or 'compression rate' of friction materials or brake pad assemblies. During high-temperature testing, it can simultaneously measure heat transfer and strain in the brake pad assembly.

The control system is easy to use, with accurate temperature control and detection, and precise displacement measurement. The tester uses a computer-controlled system where initial parameters are entered via a keyboard, the loading process is automated, and the test results can be printed or saved directly.

UnitedTest is a professional manufacturer of automotive friction material laboratory test equipment, supplying brake lining compressive strain and thermal expansion testing machine fully compliant with ISO 6310 and ISO 6313 standards. This integrated test bench combines compressive strain test function per ISO 6310 and thermal expansion‑dimensional growth measurement function per ISO 6313 in one single frame, widely used for disc brake pad assemblies, brake lining coupons and friction material sample quality control, material formulation development and automotive brake component certification testing.

Key Features

Main features
Application Scenarios
Standards Covered
How the Machine Works
Keywords

Measurement and control system uses computer and Ethernet bus control equipment.

The system controls the FESTO pneumatic proportional valve through Ethernet control equipment to achieve pressure control, fast control speed, stable boost and depressurization, accurate and reliable temperature detection and control, and accurate displacement measurement. The initial parameters are input by the keyboard, and the loading process is completed automatically. After the test results are processed by the computer, they are printed out by the printer and saved.

Rigid uniaxial load‑bearing frame for stable compression test, eliminating frame‑deviation interference

Servo‑controlled loading system: adjustable test pressure range matching ISO 6310 pressure requirements for passenger car and commercial‑vehicle brake pads

High‑accuracy force transducer: ≤1 FS accuracy; high‑resolution displacement sensor: 0.001 mm resolution for tiny thickness‑change capture

High‑temperature heating platen: max 450 °C, precise temperature closed‑loop control, embedded thermocouple mounting holes conforming to ISO fixture requirements

Multi‑channel temperature acquisition module for platen and backing‑plate temperature logging

Dedicated sample fixtures: for full disc‑brake‑pad assembly and small coupon specimens; auxiliary thermal‑conductive plate fixture for pads with noise‑insulation shims

Industrial PC + UnitedTest proprietary test software:

Built‑in ISO 6310 and ISO 6313 standard test procedure templates

Automatic frame deflection compensation

Real‑time curve plotting: load‑deflection curve, temperature‑dimensional‑change curve

Auto‑calculation: compressive strain, compressibility C, hot compressibility C400, thermal swell value, thermal growth, temperature transfer value

Customizable test report export in PDF / Excel format for lab‑report submission

Environmental condition monitoring channel for sample conditioning reference (temperature & relative humidity)

Brake pad & lining manufacturers — Quality control of compressive strain and thermal swell for every production batch.

Friction material R&D — Comparing new formulations against benchmark materials under ISO 6310/ISO 6313 protocols.

Automotive OEM & Tier-1 suppliers — Verifying supplier parts before assembly-line integration.

Independent test labs & certification bodies — Providing internationally comparable test reports for global market access.

Academic & research institutes — Studying the fundamental thermo-mechanical behavior of friction materials.

ISO 6310 (Road vehicles — Brake linings — Compressive strain test methods)	Compressibility / compressive strain of friction materials	Dimensional change of a brake lining under specified normal stress at room temperature
ISO 6313 (Thermal expansion / thermal swell of disc brake pad assemblies)	Effect of heat on dimensions and form of disc brake pads	Thickness-direction expansion of a disc pad under combined thermal + compressive loading, plus inter-layer temperature relationship

By complying with both ISO 6310 and ISO 6313, the UnitedTest Brake Lining Compress Strain & Thermal Expansion Testing Machine delivers globally recognized, comparable test data — simplifying product certification for markets in Europe, North America, South America, the Middle East, and Asia-Pacific.

The testing machine is typically composed of four integrated modules:

Main frame — Vertical load column with a servo-controlled hydraulic or electro-servo actuator.

Heating system — One or more heating plates (often up to 9 plates × 350 W) that simulate braking heat, reaching ≤ 500 °C.

Measurement system — High-precision displacement sensors (accuracy up to 0.001 mm) and Type-K thermocouples positioned at the hot plate, friction block, and back plate.

Computer control & data acquisition — Ethernet-based control unit drives a pneumatic proportional valve or servo valve; test parameters are entered via keyboard; the full load–deformation–temperature curve is recorded, displayed, printed, and saved.

This architecture enables the machine to perform ISO 6310 brake lining compressive strain tests at ambient temperature and ISO 6313 thermal expansion tests under combined thermal and mechanical loading — all within a single, automated workflow.

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Main Technical Specification

Ambient temperature	room temperature ~ 40℃
Maximum heating temperature	500℃
Maximum positive load	100 kN
Maximum loading rate	70 kN/s
Working stroke	10 mm
Maximum range of displacement sensor	10 mm
Hot plate size	195×138×60 mm
Press head adjustment range	0 ~ 60 mm
Positive pressure measurement accuracy	0.5% FS
Displacement measurement accuracy	0.5% FS
Temperature measurement accuracy	1% FSv1% FS
Positive load control accuracy	1% FS
Cooling water	regular industrial water
Loading method	electric servo loading
Power supply	AC three-phase five-wire 380V / 50Hz (±10%)
Weight	600Kg
Typical Test Parameters Output	Per ISO 6310: Compressive strain ε, room‑temperature compressibility, hot compressibility C400, corrected deflection, pressure‑thickness‑deformation data log Per ISO 6313: Thermal expansion value, thermal swell, thermal growth, backing‑plate temperature‑transfer curve, dimensional‑change vs temperature data

Why Choose UnitedTest Brake Lining Compressive Strain & Thermal Expansion Testing Machine?

As a professional manufacturer of friction‑material mechanical‑property test equipment, UnitedTest deeply understands ISO 6310 and ISO 6313 test‑fixture and procedure requirements. Our one‑bench integrated solution avoids purchasing two separate test rigs, saving laboratory space and investment cost. Every machine is pre‑calibrated before delivery, supporting customer‑site installation‑commissioning, operator training, long‑term after‑sales service and fixture customization for special‑size brake‑pad samples.

What Is a Brake Lining Compress Strain & Thermal Expansion Testing Machine?

A Brake Lining Compress Strain & Thermal Expansion Testing Machine (also called a brake pad compressibility and thermal expansion tester, friction material compressive strain test machine, or ISO 6310/ISO 6313 brake lining test rig) is a specialized laboratory instrument used to evaluate the compressive strain, thermal expansion (thermal swell), and heat-conduction behavior of disc brake pad assemblies, drum brake linings, and cut specimens of friction materials.

The machine applies a precisely controlled normal force to a brake pad specimen while heating one face with a calibrated hot plate. High-resolution displacement sensors record thickness-direction deformation at room and elevated temperatures, and multiple thermocouples track the temperature gradient between the heating plate, friction block, and back plate. The result is a complete data set describing how a friction material compresses under load and expands when heated — two phenomena that directly affect pedal feel, brake drag, and thermal fade in real vehicles.

UnitedTest, as a professional manufacturer of material testing machines, supplies this class of equipment to friction-material makers, automotive OEMs, brake pad suppliers, and independent test laboratories worldwide.

Advantages of UnitedTest Testing Machine:

Specialized testing machine manufacturer — UnitedTest (Beijing United Test Co., Ltd.) has more than three decades of experience in designing and building material testing machines for metals, non-metals, polymers, and friction materials.

Global export provenance — UnitedTest equipment has been shipped to the USA, Brazil, Germany, Italy, Switzerland, Korea, Pakistan, Iran, Thailand, and many other countries.

Full-category capability — In addition to the Brake Lining Compress Strain & Thermal Expansion Testing Machine, UnitedTest manufactures electronic universal testing machines, hydraulic universal testing machines, compression testing machines, impact testers, hardness testers, torsion testers, and more — making it a one-stop testing laboratory partner.

ISO 9000-certified management system — Quality control is embedded in every production stage.

Customization & OEM/ODM — UnitedTest accepts OEM and ODM orders and can adapt the compress strain & thermal expansion tester to specific standards beyond ISO 6310/ISO 6313, such as GB/T 22310, GB/T 22311, ECE R90, TL-VW110-2.5, etc.

Responsive support — The sales and engineering team responds quickly to technical inquiries, offers on-site training, and provides long-term spare parts service.

Q1: What is the difference between ISO 6310 and ISO 6313?

A1: ISO 6310 specifies the method for measuring the compressive strain (compressibility) of brake linings/friction materials under normal stress at room temperature. ISO 6313 specifies the method for measuring the thermal expansion (thermal swell) of disc brake pad assemblies when subjected to heat and compressive load. A single Brake Lining Compress Strain & Thermal Expansion Testing Machine covers both.

Q2: Can the machine test both disc brake pads and drum brake linings?

A2: Yes. The machine is designed to test disc brake pad assemblies as well as cut specimens from drum brake linings and other friction materials, in compliance with ISO 6310 and ISO 6313.

Q3: How accurate is the displacement measurement?

A3: The displacement sensor offers a measurement accuracy of 0.001 mm, capturing even minute dimensional changes of the brake pad under load and temperature.

Q4: Does UnitedTest provide installation and training?

A4: Yes. UnitedTest provides on-site installation, calibration, operator training, and after-sales service for the Brake Lining Compress Strain & Thermal Expansion Testing Machine.

Q5: Can the machine be customized for other standards?

A5: Absolutely. Beyond ISO 6310 and ISO 6313, UnitedTest can configure the tester for GB/T 22310, GB/T 22311, ECE R90, TL-VW110-2.5, and other customer-specified protocols.

Q6: What parameter does ISO 6313 measure?

A6: ISO 6313 measures thermal‑caused dimensional change (thermal expansion, thermal swell, thermal growth) of disc‑brake pads under heating condition, and assesses heat‑transfer characteristic of complete brake‑pad assembly, simulating thermal load during real‑vehicle braking process.

Q7: Can one machine run both ISO 6310 and ISO 6313 test?

A7: Yes, UnitedTest integrated brake lining compressive strain & thermal expansion testing machine supports both standards on same test station, by switching test procedure and partial fixture setup.

Q8: What sample types can be tested?

A8: Full disc‑brake‑pad assemblies with backing plate, brake pads with shims, cut friction‑material coupon samples, moulded or bonded brake lining specimens.

Standard

ISO 6313 Disc Brake Pad Thermal Heat Resistance Test –

ISO 6313 Road vehicles - Brake linings - Effects of heat on dimensions and form of disc brake pads - Test procedure

ISO 6313 specifies a combined test method that simultaneously measures: 1, dimensional changes of a disc brake pad as a function of temperature, 2, the pad's resistance to heat transfer in the direction of the applied pressure.