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Atlas Copco Introduces Dynapac F800T Paver

The Dynapac F800T paver is designed specifically for North American customers and meets Tier IV Final emission regulations.

Mon August 18, 2014 - National Edition
Construction Equipment Guide

Atlas Copco has introduced a new 8-ft. (2.4 m) tracked paver to complement its existing 10-ft. (3 m) highway class paver range. The Dynapac F800T paver is designed specifically for North American customers and meets Tier IV Final emission regulations.

Smooth Material Flow

The F800T has a working width of 8 to 19 ft. (2.4 to 5.8 m) and paves to 12 in. (30.5 cm) thick. Features such as a safe-impact push-roller system, chamfered hoppers, dual bar feed conveyors and the world’s thinnest auger chain box ensure a smooth and continuous flow of material for best mat quality, according to the manufacturer.

The Dynapac F800 series’ safe-impact push-roller option ensures that shock from bumping the truck is not transmitted to the screed.

The material hopper can hold up to 13.5 tons (12 t) of asphalt, matching the largest material hoppers available in this class. Chamfered corners on the hopper discourage asphalt from sticking at the corners and allow easy cleaning at the end of paving shift. Dynapac F800 series pavers also can be equipped with hydraulically operated aprons. The aprons prevent spillage at the front and provide easy dumping of residual asphalt back into the hopper.

The Dynapac F800 paver’s independently controlled, dual-bar feed conveyor system with large auger flights ensures continuous flow of material. The 17-in. (43 cm) diameter auger flights are the largest in the industry and are attached to the world’s thinnest center chain box at just 6 in. (15 cm) wide, eliminating centerline segregation, according to the manufacturer.

Both auger and conveyor speed control are achieved through an integrated feed control system using four ultrasonic sensors. The integrated hydraulic tunnel option eliminates material spillage toward the track and provides optimum material head.

Power-Packed Performance

The Atlas Copco Dynapac F800T tracked paver’s six-cylinder, 173 hp Cummins QSB 6.7 Tier IV Final engine provides ample power for a wide variety of jobsite conditions. The six-cylinder engine means less strain on engine components and increased longevity. The ECO mode setting further reduces fuel consumption during paving operations.

Hydraulic components on the Dynapac F800T match the F1000 10-ft. paver range, which ensures availability of parts. The oversized hydraulic components also generate less heat, which reduces fatigue loading and increases component life.

An efficient cross-flow cooling system with a hydraulically-driven, temperature-dependent variable speed fan significantly reduces the noise level. A variable speed fan uses less energy, meaning more power for paving applications even in extremely hot working conditions. The bypass valve on the hydraulic oil cooler quickly brings the machine temperature to operating parameters, reducing idle time in cold working conditions.


The Dynapac F800T paver is equipped with a high-performance frictional undercarriage system capable of pushing trucks even while its own hopper is fully loaded. The paver is supported by three oversized wheel sets (four wheels per set). The oscillating bogie wheels allow the paver to run on uneven surfaces without affecting mat quality.

A heavy duty torque hub combined with a two-speed hydraulic motor provides ample torque while paving, with travel speeds up to 8.5 mph for transportation from job to job. The low deck height and balanced center of gravity combine for a smooth ride.

Operator Station

Operator visibility is a key design factor of the new F800 paver. The low operating deck and engine cover height, dual swing-out operator consoles and position of the operator station closer to the auger compartment keep the operator in constant communication with the truck driver and screed men to ensure the best paving.

The Dynapac F800 series’ dual swing-out operator consoles are fitted with simple toggle switches and controls that permit the operator to focus on the paving process. The controls are assembled in operation-specific groups by frequency of use, allowing operators to respond instantly to varying conditions. Both operator consoles have electronic displays for accurate readout of paving parameters.

Carlson Screed

The F800 series pavers are equipped with the Carlson EZIV08-15 front mounted electrical screed. Options like safety edges, berm attachments and bolt-on extensions also are available.

Controls for the screed operator are fitted with simplified toggle switches accessible even with gloved hands. The load-sensing hydraulic system consumes less power and provides a faster response to varying widths and slope changes.

Power for screed electrical heating is provided by a tractor-mounted 34 kV hydraulically-driven generator. The generator also provides ample reserve power to connect night lighting accessories and wide width packages. The generator maintains a frequency control at 60 Hz regardless of the load or speed of the engine. This control allows frequency-dependent tools or accessories to connect to the generator.

Maximizing Uptime

The Dynapac F800 series is designed for maximum uptime with simplified service concepts. The hydraulic system is fitted with redundant circuits and manual overrides to keep the paver up and running all the time. Quick disconnect fittings aid pressure tests and keep the paver spillage-free.

A relay logic system and reduced number of computers simplify tracking the electrical system. The DP200 display on both consoles shows engine- and paver-related fault codes, which help operators and technicians diagnosis problems and choose corrective action. Calibration of the hydraulic pumps and of electrical devices such as joysticks is possible from the DP200 display itself, eliminating the need for a laptop at the job site.

Centralizing filters and other maintenance items reduce scheduled service downtime. Cummins Tier IV technology has increased engine maintenance intervals to once every 500 hours.

Environmental Benefits

The Tier IV Final engine reduces exhaust emission of particulate matter and nitrous oxides by 90 percent. Noise also is reduced through the use of a hydraulically driven, temperature controlled cooling fan.

The ECO Mode combined with an improved common rail technology engine reduces the fuel consumption significantly over previous generation engines.

For more information, call 800/732-6762 or visit

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