Purchase of Steel Double-Drum Roller

Tarrant County is seeking bids to purchase a steel double-drum roller to assist with the compacting of asphalt or dirt at road work job sites. The steel double-drum roller must have specific features such as an operating weight of 25,000 pounds, a drum compaction width of 68 inches, a drum diameter of 51 inches, and a drum offset for decreased roller marks. The roller must also have a minimum vibratory frequency of 61 hertz, two steel vibrating drums, four drum scrapers, a hydrostatic drive transmission, and a four-cylinder water-cooled diesel engine. • The roller must have a gross horse power of 130 HP at 2,200 revolutions per minute. • The roller must have a fuel tank capacity that can sustain it for ten hours of operation. • The roller must have an electrical system powered with 12 volts or 24 volts. • The roller must have DOT-approved working lights in the front and rear. • The roller must come with a roll-over protection system and a backup alarm.