Founded in 1995, China Dongda Power Industry Co., Ltd. is one of the few rotary engine manufacturer and distributor in China that has patents on the generator, motor, power supply, engine, alternator, diesel and gearmotor design, supply and sale. Our custom rotary engines has obtained the certifications of ISO9001-2000, GS/TUV, CE, VL, EPA, QHS, SON, CAP and SRS and we have won EPA 2005 Motor Year Certification. Our 30 QC staff carefully performs inspections at every stage of production, from the time we receive raw materials to packaging. Noise, power, and stability are tested to ensure that our engines can endure 580 hours of constant use. We also can design and deliver OEM/ODM samples in one month.

The XR 50 is a 4-stroke Wankel rotary engine. This ultra high performance engine produces an incredible 48hp and has such a high flat torque curve that the traditional heavy gearbox is not necessary. The engine is designed to have service interval similar to that of a traditional four stroke which keeps you out on the track and greatly reduces operating costs. More powerful, lighter weight, cleaner operating, smoother running, and cheaper to maintain. The idea to build a 4-stroke rotary engine for karting was developed in 1995, when it was considered that environmental regulation would ultimately demand replacement for the currently used 2-stroke system. The current XR 50 engine has been running successfully for over two years and has reached markets all over the world. It is a 294cc single plate rotary, with a simple design that offers 48 hp but less emissions, vibrations, noise and weight than its 2 and 4 stroke counterparts. Package Includes - Engine, Carb, Engine Mount (Less Clamps), Clutch with Sprocket. Requires - Radiator, Water Pump and Hardware, Waterline Hoses, Chain, Rear Sprocket (#428), and some small parts like fuel line etc.

The smooth 1308cc two-rotor rotary engine features both intake and exhaust ports in the side housings. This configuration permits larger port area, which increases power significantly. Zero overlap between intake and exhaust ports allows the RENESIS to utilize a lean air/fuel mixture, while unburned fuel is retained for combustion in the next cycle. A high compression ratio and delayed exhaust port timing improve thermal efficiency. The 3-stage induction system features variable intake paths, such that a long route is used for low rpm and a short route at high rpm. A flat torque curve and lightweight rotors produce fast acceleration. Ultra-fine fuel injectors are used to improve fuel atomization. Small, high power coils provide a more powerful spark for enhanced ignition. As a result, complete combustion is ensured across the engine’s entire speed range. An advanced engine management system and drive-by-wire electronic throttle provide more precise control than conventional systems.

Go to China Motor & Engine Manufacturer Catalog or China Motor & Engine Products Catalog to find more China Products!