CLG6620E Single Drum Vibratory Roller

The LiuGong CLG6620E is a hydraulic double-drive single drum vibratory roller with an operating mass of 20,000 kg, built for road construction and maintenance. It is powered by a Shangchai diesel engine rated at 147 kW at 2,200 rpm.

The compaction system delivers a centrifugal force range of 390 / 328 kN with a nominal amplitude range of 2.0 / 1.3 mm and a vibration frequency range of 28 / 32 Hz across two amplitude settings. The 2,130 mm wide drum and 592 N/cm static linear drum load support efficient coverage, while the operating mass is distributed with 12,600 kg on the vibrating drum and 7,400 kg on the drive axle.

Flexible non-impact vibration technology reduces the impact on the vibratory bearings and hydraulic system, extending component service life and helping the machine start, stop and switch amplitude without leaving ripples on the surface. The independent vibration chamber design requires only 6 L of lubricating oil, and the inverted engine layout with a wide-opening hood keeps the travel pump, vibration pump and filters within easy reach.

The hydraulic system uses imported piston pumps and motors for stable power delivery in demanding conditions. A built-in fan structure in the drum lowers the heat balance temperature, and active lubrication keeps the vibratory bearings lubricated and cooled.

Full hydraulic double drive provides strong traction, and forward, reverse and braking are controlled from a single lever without clutch or gear shifting. Standard equipment includes air conditioning, a three-stage damping system, a USB port, a radio, an adjustable seat and an adjustable control console. A liquid crystal display instrument panel with fault alarm keeps the machine status visible, and the ECO mode reduces fuel consumption during work, idling and travel. Optional equipment includes a padfoot drum, drive tires, chevron tires, a reverse camera and a compaction detection system.