Double-drum Vibratory Compactors DD-130

  The DD-130 series features prominnet performances and high reliability, widely used in compacting asphalt roads and concrete engineering.The American patented intelligent vibration frequency gauge makes the operator control the machine easily, guaranteeing the best grading and density.
  

¡¤Vibration frequency gauge

The patented vibration frequency gauge can help the operator control the ratio of vibration frequency and travelling speed correctly. During work, when the pointer is in the green area, the best density and grading can be guaranteed.

¡¤The water-spraying system

It adopts two separate pressure water-spraying systems with each including two water pumps, three-stage water filter, two sets of water-spraying rods and injectors. The flow can be controlled automatically or by hand, ensuring the best results. In addition, the angle of the injector can be adjusted.

¡¤Easy maintenance

The open engine shield makes it convenient to access the part that need maintaining. The maintenance is time-saving and labor-saving.

¡¤Equipments for selection

Cab, awning.
  

1.  Engine
  It adopts water cold starting of Cummings 6BTA5.9 which boasts power of 130KW. The turbocharged cold engine utilizes lattice heating, meeting the requests of the cold weater in the north. When the temperature is 30 degrees below zero, the machine can still start and stop easily.
2. Hydraulic system
  The unique closed hydraulic circuit can minimize energy loss so that high-quality hydraulic parts and seal kit are used. The low-speed big torque transmission motor can make the speeds of the front and rear drums identical. Besides, the supply of parts is convenient.
3. Vibration system
  The DD-130 series boasts the patented vibration mechanism produced by Ingersoll-Rand. The mechanism can offer 8 adjustable amplitudes for the users during operation.High amplitude is recommended for thick lift compaction, low amplitude for thinner lifts and sensitive compaction areas. The dynamic pressure scope is 18.4-68.8KG/CM and the highest vibration force can hit 160KN. The DD-130 series' vibration system configuration with one vibration frequency and 8 amplitudes not only suits the domestic compaction of asphalt and gray soil, but also the compaction of changed asphalt through the newest technique. The successful use of the second ring of Beijing profits from the advanced vibration system.
  To prevent the road surface from being destroyed by starting and stopping, unique automatic vibration-starting system has been designed. When the speed reaches 0.8KM/H, the vibration starts automatically; when the speed is less than 0.8KM/H, the vibration stops automatically. At the same time, the intelligent control design increases the machine's safety performance.
  In order to get the best pressure effect, the DD-130 series is equipped with the unique patented product-vibration interval chart. During work, when the pointer is in the green area, the best density and grading can be guaranteed. All the vibration modules are controlled by integrate circuit.
  With the travelling direction changing, the vibration mechanism changes directions automatically to avoid ripples.
4. Instrument, operating system and brake system
  All the instruments, operating and brake systems boast high precision and durability, completely suiting the bad working conditons. The seat can be rotated 180 degrees and positioned in five locations so that the convenience of operation and observation can get guaranteed effectively. The brake system utilizes spring-applied, hydraulically released (SAHR) brakes with unsurpassed safety performances.