Product Brief Introduction
The ZT 550cc UAV engine is a high-performance horizontally opposed four-cylinder two-stroke drone gasoline engine independently developed for medium-to-large commercial civilian unmanned aerial vehicles. As a high-power EFI UAV gasoline engine, it fills the performance gap between mid-displacement light-duty power units and heavy-lift large drone engines.
This drone gasoline engine integrates mature electronic fuel injection technology and all-in-one starter-generator module, solving the pain points of poor high-altitude power attenuation, complicated wiring and unstable power supply that traditional carburetor UAV engines often encounter. Adopting aviation aluminum alloy as the main body material and high-precision machining process, the whole machine owns outstanding anti-drop, anti-fatigue and anti-vibration capabilities during long-hour continuous flight.
With balanced power, flexible speed adjustment and strong payload carrying capacity, the ZT 550cc UAV engine has become a mainstream premium propulsion solution for global civilian aerial industry users, setting new standards for reliability and comprehensive performance of commercial drone power systems.
Complete Technical Specification Table
| Specification Item | Exact Parameter |
|---|---|
| Full Model | ZT 550cc UAV Gasoline Engine |
| Displacement | 550cc |
| Max Power Output | 49.62HP / 37kW |
| Operating Speed Range | 1300rpm – 7500rpm |
| Static Thrust (100m Altitude) | 70kg |
| Recommended Matching Propeller | 30×20, 30×23, 30×25 |
| Cylinder Layout | Horizontally Opposed 4 Cylinders |
| Cylinder Bore × Stroke | 66mm × 40mm |
| Maximum Matching Take-off Weight | 220kg |
| Standard Fuel Lubrication Ratio | 50:1 |
| Net Weight of Main Engine | 18.3kg |
| Rated Fuel Consumption | 14L/h |
| Engine Cycle Type | Two-stroke |
| Optional Accessories | Exhaust Pipe, Electric Starter, Integrated Generator |
| Fuel Type | High-purity unleaded aviation gasoline |
Detailed Structural & Technical Highlights
Intelligent Electronic Fuel Injection System for High Altitude
Different from conventional carburetor drone gasoline engines, this UAV gasoline engine adopts a full electronic fuel injection ECU control system. The real-time monitoring module automatically adjusts fuel injection volume according to ambient air pressure, altitude and temperature, effectively avoiding insufficient combustion and power loss in high-altitude low-oxygen environments. It also realizes cold quick start and stable idle speed under low-temperature conditions, improving overall environmental adaptability of the UAV engine.
All-in-One Self-starting Generator Module
The integrated starter-generator two-in-one design is a core upgrade of this ZT 550cc UAV engine. It realizes automatic electric start without external starter equipment, while continuously outputting stable power for onboard mapping sensors, aerial cameras, data transmission modules and other payload devices. This integrated structure reduces redundant wiring inside the drone cabin, lowers assembly difficulty and cuts extra dead weight of the whole aircraft.
Robust Aviation-Grade Electrical Connection System
All circuit terminals of this drone gasoline engine use standardized aviation dedicated plugs, compared with ordinary plastic connectors, aviation plugs feature stronger anti-vibration, anti-loosening and waterproof performance. It prevents circuit disconnection or signal failure caused by strong airflow vibration, bumpy takeoff and landing, greatly improving the safety and stability of long-distance commercial flight missions.
Horizontally Opposed Four-Cylinder Balanced Vibration Reduction Structure
The horizontally opposed 4-cylinder two-stroke layout of the UAV engine makes the reciprocating inertia force of each cylinder offset mutually during operation, bringing ultra-low vibration and linear smooth power output. The aviation aluminum alloy cylinder block undergoes surface hardening treatment, with excellent impact resistance and fatigue resistance; the streamlined overall shape optimizes airflow resistance during flight, further lifting flight efficiency of the UAV.
Civilian Commercial Application Scenarios
This ZT 550cc drone gasoline engine is exclusively applied to non-military civilian commercial unmanned aerial vehicle industries, covering multiple mainstream global professional fields:
- Large-area aerial survey & mapping: Land resource census, highway engineering monitoring, mountain terrain scanning, municipal infrastructure inspection
- High-definition commercial aerial photography: Film and television aerial shooting, real estate panoramic shooting, scenic spot large-scale landscape photography
- Forest & ecological civilian patrol: Forest vegetation growth monitoring, wild animal habitat observation, wildfire civilian early warning inspection
- Disaster civilian rescue & environmental monitoring: River basin water quality inspection, flood area post-disaster aerial survey, regional air quality monitoring
- Long-endurance civilian industrial drones: Hybrid VTOL commercial UAVs, large fixed-wing long-distance cruise drones, agricultural large-area crop patrol drones
Packaging & Global Logistics Delivery
- Standard Export Packing: Shockproof foam internal lining + thickened reinforced export carton. All metal moving parts are wrapped with anti-rust grease paper to avoid oxidation and rust during long sea or air cross-border transportation.
- Diversified International Trade Terms: Support EXW, FOB, CIF, DDP and other mainstream cross-border logistics solutions, cooperate with global professional freight forwarders to deliver goods to designated ports, warehouses or customer addresses worldwide.
- Custom Wooden Case Packing Option: For bulk wholesale orders, thick plywood fumigated export wooden cases can be customized to resist violent handling during long ocean transportation.
- Delivery Lead Time: Single sample orders can be shipped within 7 working days; mass batch production orders will be delivered within 15–20 working days after deposit confirmation.
Factory Production & Strict Quality Control
Our factory owns complete CNC precision machining workshops, dedicated UAV engine assembly production lines and professional full-performance test benches. Every finished drone gasoline engine will pass comprehensive multi-link inspection before leaving the factory:
- Raw material incoming inspection: Aviation aluminum alloy, crankshaft, EFI component material composition and dimensional tolerance testing
- Semi-finished product precision processing calibration, matching clearance detection of four-cylinder components
- Full-load continuous running test for 2 hours, real-time monitoring power output, vibration value, fuel consumption and power generation stability
- Finished assembly inspection: Aviation plug circuit tightness test, EFI system altitude simulation test, fuel pipeline leak-proof inspection
- Final appearance anti-rust protection and shock-proof packaging inspection
Each ZT 550cc UAV engine is assigned an independent production serial number, and all test data is archived permanently to provide traceable quality guarantee for global wholesale and retail buyers.
Frequently Asked Questions
FAQ 1: What fuel and lubricating oil are required for this ZT 550cc UAV gasoline engine, and how to match the 50:1 mixing ratio accurately?
Answer: This drone gasoline engine requires high-purity non-ethanol unleaded gasoline above 95 octane, matched with special two-stroke aviation lubricating oil. The standard fuel-oil mixing ratio is 50 parts gasoline to 1 part lubricating oil. Ethanol-blended gasoline will generate massive carbon deposits inside the cylinder, damage the EFI injection nozzle and reduce engine service life. Low-octane leaded gasoline is forbidden. Please prepare mixed fuel strictly following the 50:1 ratio before each flight to prevent cylinder wear caused by insufficient lubrication.
FAQ 2: Can the ZT 550cc UAV engine be equipped with hybrid VTOL drones, and is it compatible with different propeller sizes?
Answer: Yes, this UAV gasoline engine is fully compatible with medium-large hybrid VTOL UAVs and heavy-lift fixed-wing civilian drones, supporting three standard propeller specifications: 30×20, 30×23 and 30×25. Propeller replacement only needs standard supporting fixing accessories without complex mechanical modification. If you need to customize other non-standard propeller sizes, please contact our professional technical team in advance to obtain power matching suggestions, avoiding engine overload damage or insufficient thrust during flight.
Inquiry & Cooperation Contact Guide
If you need sample testing, bulk wholesale quotation, technical parameter consultation, airframe matching customized scheme, or download operation manuals and installation drawings for the ZT 550cc UAV gasoline engine, please submit your inquiry via the website contact form or official business email. Our professional UAV power system technical sales team will reply to all your questions within 24 working hours, and provide free global after-sales service policy documents and technical guidance.
