YL-600S tandem rollers, small double drum roller according to norms of the order of operation. Production Capacity strict tandem rollers, establish the admissibility window, limit handling system, strengthen the capacity to register, notice, establish the online real-time monitoring and control, and strengthen the matter, after the regulation; mutual supervision among enterprises play a role in the establishment of a "blacklist" system, and resolutely crack down on illegal construction of production behavior. Vertical coal enterprises to actively promote restructuring and mergers and acquisitions, restructuring support the introduction of the policy, within years YL-600S tandem rollers fight between the 10 companies contributed to the downstream restructuring, business development and increase vitality. I. Introduction: First is equipped with a small roller operating lever forward and back handle and vibration handle, control of the travel direction of the small roller and whether vibration; configuration King tank to reduce the round supplement with water troubles, increased sustained equipment working hours; compact structure, small volume, it is easy to transport, easy transition operations; fitted with automatic self-cleaning blade pressed polyurethane, can effectively prevent dirt and asphalt adhesion on steel wheels, improving compaction on steel wheels smoothness of the two, the main technical parameters: walking speed: 0-4km / h Climbing ability: 30% Drive: hydraulic vibration control: automatic clutch static linear load: 53N / cm Nominal amplitude: 0.5mm Vibration Frequency: 70HZ excitation force: 20KN tank capacity: 20L hydraulic tank capacity: 21L Engine Model: GX270 Power: 9.0HP drum size: φ 425 × 600mm × 2 Packing size: 1450 × 1100 × 1200mm Net Weight: 550kg