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DD-90 Vibratory Asphalt Compactor

The DD-90 features dual 66 inch (1675 mm) wide drums and provides high performance capability for highway and other large paving jobs. Ten plus tons (9.1 metric tons) of static weight meet D.O.T. static rolling requirements for increased machine utilization. The DD-90 has a nominal capacity up to 250 tons (227 metric tons) of HMA per hour.



Standard Features

  • Non corrosive polyethylene water tanks, 250 gallon (946 liters) capacity
  • Impact spacing meter to provide consistent, uniform compaction of asphalt
  • 3/4, 1-1/4, 1-3/4, or 2 mph automatic vibration speed settings
  • Manual push button vibration control located on propulsion lever
  • Two complete and independent water systems with four water pumps and water flow control
  • Eight variable amplitude settings
  • Five-position rotating operator’s console for excellent visibility
  • Machined drum surfaces and chamfered drum edges
• Automatic reversing eccentrics

DD-90 SPECIFICATIONS
Machine Weights (with ROPS)

Operating Weight
21,073 lb. (9559 kg)
Static Weight at Front Drum
10,918 lb. (4952 kg)
Static Weight at Rear Drum
10,155 lb. (4606 kg)
Shipping Weight
19,903 lb. (9028 kg)

Machine Dimensions

Overall Length
200 in. (5086 mm)
Overall Width
75 in. (1910 mm)
Overall Height top of steering wheel
87 in. (2210 mm)
Overall Height (top of ROPS/FOPS)
119.5 in. (3035 mm)
Drum Base
126 in. (3200 mm)
Curb Clearance
17 in. (430 mm)
Outside Turning Radius
206 in. (5235 mm)

Drums

Drum Width
66 in. (1675 mm)
Drum Diameter
48 in. (1220 mm)
Shell Thickness (nominal)
0.75 in. (19 mm)
Finish
Machined, with chamfered edges

Vibration

Frequency Lo
1850 vpm (31 Hz)
Frequency High
2500 vpm (42 Hz)
Centrifugal Force maximum per drum
26,000 lb. (115.6 kN)
Centrifugal minimum per drum
5,840 lb. (26.0 kN)
Amplitude Settings
Eight
Nominal Amplitude maximum
.040 in. (1.02 mm)
Nominal Amplitude minimum
.016 in. (0.41 mm)

Propulsion

Type System
Closed-loop hydrostatic
Drum Drive (both drums)
Right-angle drive gear reduction
Speed
0-7.9 mph (0-12.7 km/hr)
Gradeability (theoretical)
26%

Engine

Make & Model
Cummins 4BTA 3.9
Rated Power
110 hp @ 2200 rpm (82kW)
Electrical System
12-volt DC, negative ground

Brakes

Service
Dynamic hydrostatic through propulsion system
Parking/Secondary
Spring-applied, hydraulically released (on each drum)

Steering

Design
Centerpoint articulation
Type System
Hydrostatic
Articulation Angle
+/- 40°

Water System

Type
Pressurized, electric diaphragm pumps with variable flow control
Filters
Three
Nozzles (hand-serviceable)
7 per drum
Tank Capacity
250 gal. (946 liters)

Miscellaneous Specifications

Fuel Capacity
45 gal. (170 liters)
Hydraulic Oil Capacity
40 gal. (150 liters)
Oscillation Angle
+/-10°




Options

ROPS/FOPS Roll-Over Protective Structure/ Falling Object       Protective Structure
Back-up alarm
Work lights
Inside wiper bars
Cocoa mats