M1403L Micro Stirling Engine Model with Brushed LED Motor Overview The M1403L is a singlecylinder external combustion Stirling engine model that converts heat into mechanical motion and electrical output. A brushed motor with integrated LEDs demonstrates the conversion by producing alternating colored light as the engine runs. The model combines precision engineering and materials for accurate demonstration and a quality tactile finish. Key benefits Demonstrates thermodynamic conversion from heat to electricity in a clear, visual way using an LEDequipped motor. Precision components deliver smooth piston movement and reliable internal gas circulation, making it suitable for education and technical demonstration. quality materials and CNCfinished aluminum base provide a durable, feel compared to models using plastic parts. Compact size and modest weight make it suitable for desktop display, classroom use, and handson hobby projects. How it works Heat applied to the quartz heating tube drives the Stirling cycle in the 16 mm power cylinder. The piston motion transfers power via a pulley system to the brushed motor. The motor generates current that lights the LEDs, which change colors alternately to visualize engine output. Materials and manufacturing highlights Heating tube: quartz tube selected for thermal performance under rapid expansion. Power cylinder and piston: 16 mm SUJ alloy steel, heat treated and precision ground to a 0.01 mm tolerance for gas sealing and smooth operation. Structural and moving parts: stainless steel and SUJ alloy steel where strength and wear resistance are required. Base, bracket, flywheel, heating cylinder head, and power cylinder head: 6061 aluminum alloy, CNC machined, polished, and anodized for a refined appearance and durable finish. Flywheel and pulley: flywheel diameter 55 mm, pulley diameter 25 mm, designed for stable rotational performance. Specifications Model: M1403L Motor type: Brushed motor with LED Black size L x W x H: 190 x 100 x 95 mm Blue size L x W x H: 198 x 100 x 90 mm Net weight: 680G Total weight with packaging: 780G Heating tube inner diameter: 19 mm Piston stroke: 16 mm Piston diameter: 16 mm Flywheel diameter: 55 mm Pulley diameter: 25 mm Materials: quartz tube, stainless steel, SUJ alloy steel, 6061 aluminum alloy (base, bracket, flywheel, heating cylinder head, power cylinder head) Use scenarios Classroom demonstration: Show the Stirling cycle and energy conversion principles during physics lessons or lab sessions. Desktop educational display: Use as a handson model for hobbyists and students studying thermodynamics or mechanical design. Science fair or project: Provide a working exhibit that converts heat into visible electrical output with alternating LED colors. What makes this model stand out Precisionengineered SUJ steel piston and cylinder with 0.01 mm tolerance for reliable sealing and smooth motion. CNCmachined and anodized 6061 aluminum base and components for a durable, end finish. Integrated brushed motor with LED output that visually indicates the engine converting heat into electrical energy. Quartz heating tube and robust metal construction instead of plastic parts for a tactile, longlasting model. Model M1403L is a compact, wellmachined Stirling engine model suited for education, demonstration, and hobby use, offering a clear visual representation of heat to electricity conversion through its LED motor output.