ADX 250

Experience the perfect balance of power and reliability in a more compact form with the ADX 250—the newest twin-cylinder engine from ZDZ that draws on the proven success of its bigger sibling, the 500B4 . Get the same top-tier performance in a smaller footprint, ideal for UAV producers looking to optimize space without sacrificing quality.

Mirroring the 500B4’s Proven Design

  • Identical Concept & Construction: Built on the same foundation as the 500B4, ensuring robust power and unmatched reliability.
  • Smaller, Twin-Cylinder Package: Enjoy efficient performance while streamlining weight and space for tighter UAV designs.

Engineered for Industrial-Grade Reliability

  • Super Low Vibration: Minimize wear and tear with a design that maximizes flight stability and component longevity.
  • Easy Cooling & Secured Crankshaft: Count on minimal downtime and maximum durability with industry-leading heat dissipation.

Modularity that Puts You in Control

  • Custom Sensor Positions: Tailor additional sensors to meet unique mission requirements.
  • Optimized Cylinder Heads: Upgrade cooling capabilities or adapt for specialized operational needs.
  • Multiple Generator Options: Choose from three different generator types—front- or back-mounted—to best suit your power demands.

Enhanced Safety Features

  • DUAL SPARK PLUG Option: Elevate redundancy and reliability when safety is a priority.

Stop compromising on performance or space. Step up to the ADX 250—the new generation of CNC crankcase quad boxer engines from ZDZ—and discover how smaller design can still deliver big results. Upgrade today and experience the ultimate power, reliability, and value that set the ADX series apart in the UAV industry.

Displacement: 250ccm
Weight: 6070g, 7950grams with starter
Bore: 56mm
Stroke: 50mm
RPM range 1000-8500ot/min
Ignition:  Processor controlled 4,8-7V
Fuel mixture N95+rec. oil: 1:35
Recomm. twinblade props 34x16, 36x12, 36x14
Recomm threeblade props: 33x12, 33x14, 34x12

  1. Rotation Options: Our engines can be customized to operate in either a clockwise (CW) or counterclockwise (CCW) rotation. This provides flexibility to choose the rotation that best suits your specific system requirements.

  2. Exhaust system:  You can choose betwen standard SSA compact and direct mount systém or specific solution.

  3. Double Spark Plug Heads: Engines can be equipped with double spark plug heads to increase safety and reliability. This feature ensures that your engine continues to operate in the event of a spark plug failure, offering uninterrupted performance and peace of mind.

  4. Additional Sensor Mounting Position: Engines could be equipped with an additional sensor mounting position on either the cylinder heads or crankcase. This provides the flexibility to tailor the engine to your exact needs, allowing you to achieve optimal performance and functionality.

  5. Cylinder Head Redesign: Our engines can be completely redesigned to provide easier cooling or fit into your cowl space. This feature ensures that your engine not only performs at its best, but also fits seamlessly into your system.

  6. Electric Starter: Engines could be equipped with an electric starter for easy and efficient start-up. This feature saves time and effort, allowing you to focus on your work and get the job done quickly and efficiently.

  7. Automatic Deco Valves: Engines could be equipped with automatic deco valves, making restarts in the air easy and stress-free. This feature allows you to focus on your flight and enjoy a smoother and more comfortable experience.

  8. Power Generator: Engines can be designed with brushless generators that provide superior power to meet your specific needs. This feature ensures that you have the power you need to operate all of your equipment, no matter what the situation.

  9. Custom-Made Backplate: Engines could be designed with a custom-made backplate that offers a mounting point and design tailored to your specific needs. This feature ensures that your engine fits seamlessly into your system, providing optimal performance and functionality.

  10. Electronic Fuel Injection: Engines could be equipped with electronic fuel injection for improved efficiency and performance. This feature ensures that you get the most out of your engine, with increased fuel economy and power.