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Two-cylinder general-purpose aero-engine (SZ500)

Two-cylinder general-purpose aero-engine (SZ500)

This is a 30kW two-cylinder horizontally opposed air-cooled two-stroke engine featuring solid-state magneto ignition, 500cc displacement, 17kg dry weight, 18L/h fuel consumption, compatible with pusher and tractor setups, with optional 24V starter and 30×26 inch propeller.

Product Parameters

ItemSpecification
Type2-cylinder horizontally opposed, air-cooled, 2-stroke
Power30 kW
Bore × Stroke75 × 56 mm
Displacement500 cc (2-cylinder)
Max Speed5900 rpm
Dry Weight17 kg
Dimensions440 × 290 × 310 mm
CarburetorAll-attitude, with choke
Generator36V 3-phase AC
CrankshaftHigh-strength alloy steel
PistonAluminum alloy, 21%–23% silicon
Cylinder BlockAluminum alloy, ceramic electroplating
Fuel Consumption18 L/h
Fuel92# gasoline + 2-stroke oil (20:1)
IgnitionSolid-state magneto
LubricationFuel-oil mixture
ApplicationPusher / tractor configurations
Options24V starter, 30×26 in propeller


Product Advantages

1. Fully In-House Integrated Production: Independent mold development, precision die-casting, CNC machining, automated assembly, and comprehensive testing; end-to-end quality control ensures excellence from the source and eliminates assembly-related defects;
2. OEM-Grade Quality Standards: Strict adherence to international OEM manufacturing processes and technical specifications; parameters, precision, and performance benchmark against top-tier global brands, ensuring consistent, compliant quality;
3. Seamless Compatibility Across Brands: Perfect fit for mainstream models from Bosch, Valeo, and Denso; direct drop-in replacement requiring no modifications—install and go with zero-error precision;
4. Precision Engineering for Durability: Micron-level CNC machining and reinforced alloy structures ensure vibration resistance, thermal stability (high/low temps), wear resistance, and low failure rates, offering a service life far exceeding standard replacement parts;
5. Rigorous Comprehensive Testing: Over ten factory-level performance tests simulating real-world operating conditions, significantly enhancing product consistency, stability, and safety;
6. Cost-Effective Supply Advantage: Fully controlled in-house supply chain eliminates middlemen; delivers OEM quality at competitive prices, with support for bulk supply and custom development.

Packaging and Transportation

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FAQ

A:

Choosing the right engine depends on your UAV’s maximum takeoff weight, required power, endurance target, installation space, and operating environment. Please share these requirements when making an inquiry so that a suitable engine model can be evaluated.

A:

Specifications vary by model. When comparing engines, please check rated power, engine weight, and fuel consumption under the specified operating conditions. Include your application requirements in your inquiry to request the relevant model specifications.

A:

Fuel and lubricant requirements depend on the engine model. Always follow the product manual for fuel grade, lubricant specifications, and mixing ratio where applicable. Confirm these requirements before operation, as unsuitable fuel or lubrication may damage the engine.

A:

We provide a stable after-sales warranty for all finished starter motors and formal spare parts. Under normal installation and working conditions, our products feature low failure rate and long service life. We support free replacement and technical solutions for quality problems caused by production process.

A:

Yes. As a professional source factory with an annual output of over 200,000 units, we have sufficient inventory for mainstream starter motor models and common spare parts. We can support long-term bulk orders, seasonal rush orders and fast sample delivery to ensure stable and on-time delivery.

A:

Sure. We can provide full set of export documents including MSDS certificate, product inspection report, OE parameter manual, packing list and commercial invoice. All documents meet international export standards and customs clearance requirements of various countries.

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