MD550 550cc EFI Self-Start Opposed Twin-Cylinder UAV Gasoline Engine – Heavy-Duty Long-Endurance Industrial Drone Power System

  1. Integrated electric self-start module: This drone gasoline engine cancels manual pull-start design, supports instant cold ignition at -30°C low temperature, simplifies ground preparation procedures for industrial UAV fleets.
  2. 550cc large-displacement boxer twin-cylinder layout: Delivers high torque and stable sustained power output, perfectly matches heavy-lift multirotor and large VTOL UAV platforms with over 30kg maximum payload demand.
  3. Closed-loop intelligent EFI fuel control system: The UAV gasoline engine automatically adjusts air-fuel mixture ratio under altitudes up to 4500m, eliminates power drop and flameout risks in plateau, cold and thin-air environments.
  4. Reinforced air-cooled dense fin heat dissipation: Expanded heat exchange area avoids overheat stall during continuous 6+ hours full-load flight, greatly extending the service life of this UAV engine.
  5. Multi-channel real-time safety monitoring: Built-in sensors for temperature, overspeed, low voltage and fuel shortage; transmits all operating data to flight controller via CAN bus for ground station monitoring.
  6. Low-vibration balanced piston structure: Horizontally opposed two-cylinder design offsets mechanical vibration, protects precision survey cameras, LiDAR and spraying equipment mounted on UAVs equipped with this drone gasoline engine.
  7. Universal cross-industry compatibility: Adaptable to agricultural large spraying drones, medium-long distance cargo delivery VTOL, fixed-wing aerial mapping aircraft and long-distance pipeline inspection unmanned equipment.
Product Overview
The MD550 550cc UAV gasoline engine is a dedicated civilian heavy-load internal combustion power unit independently developed for large commercial unmanned aerial vehicles. Different from small-displacement single-cylinder drone gasoline engines, this UAV engine adopts horizontally opposed twin-cylinder two-stroke architecture, full electronic fuel injection and built-in self-starter assembly, specially optimized for long-duration heavy-payload civilian aerial industrial missions.
All core assemblies including forged crankshaft, aviation alloy cylinder, full-function ECU and dual redundant ignition coil use aerospace-grade lightweight raw materials. Every finished MD550 drone gasoline engine undergoes an 80-hour full-power bench aging test before factory shipment to screen all assembly defects. As our flagship heavy-displacement model, the 550cc specification balances strong power output and controllable overall weight, solving the short endurance and limited payload pain points of pure electric UAV power systems. Global industrial clients widely select this UAV gasoline engine for farm large-area pest control, mountain remote logistics transportation, wide-range topographic survey and long-distance civil infrastructure inspection tasks.UAV engine

Complete Official Technical Parameter Table

Parameter ClassificationOfficial Standard Technical Index
Complete Official Model NameMD550 550cc EFI Self-Start UAV Gasoline Engine
Total Displacement550cc Horizontally Opposed Twin-Cylinder Two-Stroke
Cooling FormForced Air-Cooled with Thickened Reinforced Heat Dissipation Fins
Maximum Rated Power Output36HP Stable Continuous Power
Continuous Working Speed Interval1000rpm – 8300rpm
Standard Fuel-Oil Lubrication Mix Ratio30:1 (95# Unleaded Gasoline + Two-Stroke Fully Synthetic Lubricant)
Ignition Matching ConfigurationDual-Sensor Redundant CDI Electronic Ignition System
Startup ModeIntegrated Brushless Electric Self-Start (No Manual Pull Start)
Maximum Adaptable Flight Altitude≤4500 Meters Above Sea Level
Allowable Ambient Operating Temperature-30°C ~ +58°C
Primary Engine Body Raw MaterialHigh-Strength Aviation Die-Cast Aluminum Alloy
Factory Matched Standard Spark PlugNGK CM7 Iridium High-Temperature Spark Plug
Applicable Propeller Size Range2210 inch ~ 5024 inch (Customized by UAV payload)
Global Factory Standard Warranty Period12 Months Full-Coverage After-Sales Warranty
Sample & Bulk Purchase Rule1 Unit Supported for Independent Sample Performance Test

Independent R&D Core Component Introduction

Mirror ultra-fine CNC machined cylinder inner wall: Minimizes piston reciprocating friction loss, cuts running mechanical vibration and noise, raises the energy conversion efficiency of this UAV gasoline engine.

Miniaturized integrated EFI & self-start combined module: Compact structure saves UAV installation cavity space, supports real-time CAN bus data transmission and seamless communication with mainstream industrial flight control hardware.

Multi-layer anti-dust, waterproof and anti-corrosion surface coating: All exposed metal and circuit components are covered with heat-resistant rust-proof paint, adapting to dusty farmlands, humid coastal zones and alpine low-temperature working surroundings.

Optimized layered fin heat-dissipation architecture: Expands heat exchange area without excessive weight increase, effectively avoids thermal power attenuation during all-day continuous full-load flight of the UAV engine.

Modular split assembly layout: Self-start motor, exhaust pipe, ignition unit and fuel supply parts are fully detachable. Operators can complete daily inspection and wearing-part replacement without special professional disassembly tools.

Civil Commercial Application Scenarios

Large-Scale Agricultural Operation UAVs: High-volume liquid pesticide spraying, orchard full-area fertilization, forest large-range pest prevention and farmland crop growth health monitoring.

Heavy-Lift VTOL Cargo Delivery Drones: Remote mountain area bulk daily material transportation, regional heavy lightweight goods distribution, offshore island supply logistics transport.

Aerial Survey & Mapping Fixed-Wing UAVs: Large-area topographic mapping, national land resource census, ultra-wide-range 3D aerial photography modeling and river basin terrain detection.

Civil Large Infrastructure Inspection Platforms: Long-distance high-voltage power line patrol, wind turbine whole-blade safety inspection, cross-country oil & gas pipeline monitoring and large bridge structural stability scanning.

Ecological Environment Monitoring UAV Platform: Atmospheric multi-pollutant sampling, wide river surface water quality aerial inspection, large forest wildfire early warning patrol and natural vegetation resource tracking.

FAQ

FAQ 1: What core advantages does this 550cc EFI self-start UAV gasoline engine have compared with small-displacement drone gasoline engines and all-electric drone motors?

Pure electric drone motors rely entirely on lithium batteries for power supply, with continuous flight time generally limited within 40 minutes; heavy battery weight severely restricts drone maximum payload capacity, and power will drop sharply under low temperature or high altitude. Small-displacement drone gasoline engines below 300cc cannot support heavy payloads over 20kg and lack enough torque for large spraying tanks and industrial detection sensors.

Our MD550 550cc UAV gasoline engine uses high-energy-density gasoline fuel to support 6+ hours uninterrupted industrial flight, with strong torque output to carry over 30kg professional working equipment. The built-in electric self-start eliminates tedious manual startup work, and closed-loop EFI ensures stable power output under complex plateau and cold environments. For long-term commercial UAV fleet operation, its daily maintenance only requires regular replacement of two-stroke lubricating oil and spark plugs, effectively reducing the comprehensive operation cost for global industrial operators.

FAQ 2: Can we customize power parameters, self-start matching structure and installation interfaces of this 550cc UAV gasoline engine for mass orders?

Comprehensive personalized customization service is fully supported for bulk purchase orders exceeding 20 units. Our professional aviation power R&D team can adjust engine power curve, propeller mounting hole size, exhaust pipe length and self-start motor output parameters according to your self-developed drone frame structural drawings.

We can also rewrite the built-in EFI control program to match exclusive self-developed flight controllers, realizing customized real-time data feedback and safety protection threshold settings. For clients with special ultra-highland or extreme cold region long-hour operation requirements, we can upgrade heat dissipation fins and optimize fuel injection calibration to boost extreme-environment stability of the drone gasoline engine. You only need to send UAV dimension drawings and detailed mission parameter demands to our global sales team, and we will deliver a targeted MD550 UAV gasoline engine matching solution within 2 working days.

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