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Dual Travel Pumps on Bomag BW177DH-5, BW177PDH-5 Single Drum Vibratory Rollers Increase Gradeability

Part of Bomag’s new “Dash 5” Series of single drum rollers, the smooth drum BW177DH-5 and padfoot drum BW177PDH-5 feature a dual travel pump drive system for increased gradeability.

Part of Bomag’s new “Dash 5” Series of single drum rollers, the smooth drum BW177DH-5 and padfoot drum BW177PDH-5 feature a dual travel pump drive system for increased gradeability.

Part of Bomag’s new “Dash 5” Series of single drum rollers, the smooth drum BW177DH-5 and padfoot drum BW177PDH-5 feature a dual travel pump drive system for increased gradeability. With one travel pump dedicated to drum drive and one for the rear axle, these Bomag single drum rollers climb up to 24 percent higher grades than rollers employing a single travel pump and parallel flow hydraulic system. Built with no-spin rear differential, both the BW177DH-5 and BW177PDH-5 deliver up to 58 percent gradeability with vibration and 61 percent without.

The rollers’ elevated front frame design increases the space between the drum and frame to prevent material plugging when compacting heavy cohesive soils. Both compactors offer two vibration frequencies of 1,860/2,280 VPM (31/38 Hz) and dual amplitude to tailor compaction output to jobsite conditions. The BW177DH-5 and BW177PDH-5 deliver 25,179 lb. (112 kN) centrifugal force in high amplitude and 16,636 lb. (74 kN) in low to quickly compact up to 18-in. (45.7 cm) lifts of granular soil and up to 14-in. (35.5 cm) mixed-soil lifts. Excelling at compacting silts and clays, the padfoot BW177PDH-5 can quickly compact up to 8-in. (20.3 cm) thick lifts of these cohesive materials.

Offering the latest in emissions-reducing technology, the Tier IV Final Kubota turbocharged diesel engine offer 74 hp (55.4 kW) output. Featuring the Bomag ecomode operation, the rollers use intelligent engine control to run the engine in the optimum range, resulting in up to 30 percent lower fuel consumption.


The advanced BW177DH-5 and BW177PDH-5 vibratory rollers can be equipped with options that improve compaction performance, machine utilization and return on investment. Both rollers offer the optional Bomag Terrameter system, providing economical compaction and continuous compaction assessment during and after the project. The optional Bomag Telematic, available for all Tier IV final machines, boasts advanced diagnostics to track roller location, operating hours, idle time, fuel consumption, engine service codes and maintenance reminders.

The new Bomag BW177DH-5 and BW177PDH-5 single drum vibratory rollers offer an operating speed ranging from 0 to 6.2 mph (0 to 10 kmh). Combined with high vibration output, the rollers compact up to 550 cu. yds./hr (420 cu m/hr) of granular soil, mixed soils at rates reaching 420 cu. yds./hr (321 cu m/hr) and up to 185 cu. yds./hr (141 cu m/hr) of cohesive soil. These versatile and productive rollers can be used on a wide range of applications from residential and commercial construction to parking lots to utility and municipal projects to highway construction and maintenance.

An updated operator’s compartment offers easy entry from either side of the machine and a more spacious operating platform with intuitive control layout for more comfortable roller operation. The optional climate controlled, fully enclosed cabin elevates operator comfort and productivity regardless of ambient weather conditions. Roller design delivers improved sightlines to the front and rear of the machine for increased operating safety. A wide opening engine hood and easy-to-reach service points from ground level simplifies machine maintenance to increase uptime.

For more information, call 803/337-0700 or visit www.bomag.com/us.