Linear Expansion Apparatus Linear Expansion Apparatus
Product Code : SCL-MH-11975
The Linear Expansion Apparatus is a precision-engineered instrument optimized for the empirical determination of the coefficient of linear expansion in solid conductors. Utilizing the steam-heating jacket method with micrometer-scale resolution (0.01 mm), it facilitates rigorous thermal modeling compliant with ASTM E228 logic. This unit is intended for University-level physics laboratories and Vocational material testing curricula to validate thermodynamic properties of metallic alloys.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Expansion Rod Length |
500 mm (Nominal) |
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Rod Diameter |
4.5 mm to 5.0 mm |
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Material Set |
Triple Composition: Copper, Brass, and Steel/Iron |
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Resolution/Precision |
0.01 mm via integrated micrometer or dial indicator |
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Heating Chamber |
Well-lagged nickel-plated brass tube with triple tubules (Inlet/Outlet/Thermometer) |
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Support Structure |
Heavy-gauge channel base with detachable conical cups |
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Interface |
Low-friction screw alignment for zero-point stabilization |
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HS Code |
9027.80.30 (Instruments for expansion measurement) |
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Compliance Alignment |
Derived from ASTM E228 (Push-rod dilatometry principles) |
Key Pedagogical Outcomes (Bloom’s Taxonomy)
Feature: Integrated Steam Jacket. - Outcome: Allows students to simulate uniform isothermal heating environments, supporting Thermodynamics Module 3.1 (Thermal Expansion of Solids).
Feature: High-Resolution Micrometer (0.01 mm). Outcome: Enables precise quantification of microscopic dimensional changes, facilitating the calculation of specific expansion coefficients (α).
Feature: Multi-Material Comparative Rods. Outcome: Students analyze the relationship between atomic structure and thermal response, supporting Advanced Material Science learning objectives.
Feature: Triple Tubule Configuration. Outcome: Permits real-time temperature monitoring during heating cycles to establish steady-state equilibrium data points.
International Logistics & Compliance
This apparatus is designed for global distribution and high-frequency institutional use. Units are packed in export-grade seaworthy crating (ISPM-15 compliant) to ensure the integrity of calibrated micrometer systems during transit. Standard documentation includes a Manufacturer’s Authorization Form (MAF), IQ/OQ/PQ certification protocols for laboratory accreditation, and technical manuals in English. The tropicalized design and nickel-plated finishes are tested for corrosion resistance and operational stability in environments up to 45°C and 90% relative humidity.
Why Source from the OEM?
Procuring from the OEM ensures vertical integration of manufacturing, from the precision extrusion of metallic rods to the internal machining of the lagged steam jacket. Unlike third-party traders, our process involves batch-testing for uniformity and direct calibration of the micrometer interfaces against master gauges. Direct sourcing provides direct factory spares availability, including custom rod lengths and replacement jacket seals, ensuring long-term institutional ROI and equipment uptime.
