Expert in casting inspection equipment and metal analysis
Comprehensive molten metal temperature measurement, furnace quality control, and chemical composition analysis solutions for steel mills, foundries, and laboratories.
Featured Products
Metal Melting Temperature Meter and Pre-Furnace Analyzer — Core Products

CYY-W330 Handheld Liquid Metal Thermometer
CYY-W330 Handheld Liquid Metal Thermometer
CYY-W330 Handheld Liquid Metal Thermometer — measures molten iron, steel, copper, and aluminum. CE certified with English interface.
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CYY-W600 Large-Screen Molten Metal Thermometer
CYY-W600 Large-Screen Molten Metal Thermometer
CYY-W600 Large-Screen Molten Metal Thermometer — Measures Cast Iron, Steel, Copper, and Aluminum. CE Certified with English Interface.
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CYY-W660 Wireless Large-Screen Molten Metal Pyrometer
CYY-W660 Wireless Large-Screen Molten Metal Pyrometer
CYY-W660 Large Display Wireless Temperature Measurement System — measures cast iron, steel, copper, and aluminum. CE certified with English interface.
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CYY-LK2 Pre-furnace Rapid Carbon-Silicon Analyzer
CYY-LK2 Pre-furnace Rapid Carbon-Silicon Analyzer
Carbon-Silicon Analyzer CYY-LK2 — On-site analysis of C and Si in molten iron. CE certified, English interface.
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CYY-LK7 Intelligent Carbon Silicon Manganese Analyzer
CYY-LK7 Intelligent Carbon-Silicon-Manganese Analyzer
Smart C-Si-Mn Analyzer CYY-LK7 — measures CEL, C%, Si%, Mn%, carburization ratio, tensile strength, and hardness. CE certified with 15-inch TFT display.
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CYY-TL5 Infrared Carbon-Sulfur Analyzer for Machining Manufacturing Plants
CYY-TL5 Infrared Carbon-Sulfur Analyzer for Machining Manufacturing Plants
CYY-TL5 Infrared Carbon-Sulfur Analyzer — Rapid C% and S% testing in steel, 35 seconds per sample, priced at just 1/5 of OES. CE certified.
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Professional Casting Inspection and Metal Analysis Equipment
Trusted by top enterprises
Serving the global metallurgy industry
5 years of experience
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Industry Solutions
Metal quality inspection solutions tailored to each manufacturing industry

Steel mill
Unstable molten steel temperature causes product defects.
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Iron Foundry
Non-compliant carbon and silicon content causes cracking and porosity in the product.
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Machine Shop
Difficulty in testing material hardness on-site
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Research Institute
High-precision analysis equipment for research
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Expertise in casting inspection and metal analysis equipment

Quick Steel Check Before Furnace Melting: CYY-TL5 -- Accurate Composition Adjustment in 3-5 Minutes
Carbon, sulfur, and external oxygen analysis for CYY-TL5: Rapidly measure C% and S% in molten steel before tapping. Results in just 3-5 minutes to precisely adjust composition before casting.
How does the carbon-silicon analyzer work in a cast iron foundry?
Understand the operating principle of the carbon-silicon analyzer CYY-LK2 for molten iron quality control at the furnace front to improve casting yield.

How to Choose the Right Liquid Steel Temperature Meter for Your Steel Plant
Guide to selecting the right liquid steel temperature measurement device based on production scale, accuracy requirements, and budget. Compare CYY-W600 and CYY-W330.

About Changyouyi
Nanjing Changyouyi Analytical Instrument Co., Ltd. is a professional manufacturer of casting inspection equipment and metal analysis tools in China. We integrate R&D, manufacturing, sales, training, maintenance, and technical consulting.
Our main products include molten metal temperature meters, carbon and silicon analyzers, thermal analysis systems, spectrometers, and laboratory testing equipment.
Contact Us
Request a quote or technical consultation
Address
NO. 8 HUASHAN RD., DEVELOPMENT ZONE, GAOCHUN, NANJING, CHINA
Phone
+86 18795833542
russ.gu77@gmail.com


