Small single drum vibrating roller, mechanical hydraulic single drum compactor, DL550 single drum compactor promote the coal industry, information technology, improve the DL550 single drum compactor top-level design, the establishment of production, security, sales and other information platform integration. Improve the operational mechanism of monitoring and statistical information economy and achieve single drum vibrating roller coal output digital dynamic control, guide industry self-regulation. Build coal market system and trading platform to promote the traditional way of production, transportation need to link to the electronic mode of online transactions hand Single drum compactor type changes, optimize the allocation of coal resources in a wider range. First, the structural characteristics: When the device is in a state of vibration, the engine speed is constant; hydraulic system uses variable displacement pump and fixed motor integrated structure, composed of a closed-loop, high volumetric efficiency; the rotation direction of the motor by two-way variable pump control, output by changing the speed of the pump displacement is achieved; the volume of the system pump and motor is small, the whole structure is arranged more mobility; with a water spray system, easy to operate valves, pipes can be easily removed for cleaning and replacement ; joystick can be adjusted according to the different needs of different angles; aircraft are small, simple, easy to transport Second, the technical parameters: Rated power (kW) 3.3 work quality (kg) 560 Working speed (km / h) 0- 3.6 Theoretical gradeability, vibration on / off (%) 30/35 frequency (Hz) 55 Exciting force (kN) 15 Nominal amplitude (mm) 0.35 vibration wheel width (mm) 550