China RP603L mini wheel asphalt paver with 6m paving width
Product description
RP603L paver is the first full-hydraulic medium 3 series wheeled paver released . This machine adopts full-hydraulic drive and electro-hydraulically automatic control, featuring advanced technologies and reliable performance. It's extensively applied for the large scope paving operations, including sidewalks, non-motorized vehicle lanes, urban roads, and small roads. With the paving width continuously adjustable from 2.5m to 6.0m, it's especially suitable for the maintenances of classified highways.
| Model |
RP603L |
| Basic paving width |
2.5~4.75 m |
| Max. paving width |
6 m |
| Max. paving thickness |
260 mm |
| Paving speed |
17 m/min |
| Production speed |
400 t/h |
| Hopper Capacity |
13t |
| Engine model |
Shangchai SC4H |
| Engine power |
103 kW |
| Transport Dimension |
6660*2600*3180 mm |
| Transport Weight |
16.5t |
A paver (paver finisher, asphalt finisher, paving machine) is a piece of construction equipment used to lay asphalt on roads, bridges, parking lots and other such places. It lays the asphalt flat and provides minor compaction before it is compacted by a roller.
The asphalt is added from a dump truck or a material transfer unit into the paver's hopper. The conveyor then carries the asphalt from the hopper to the auger. The auger places a stockpile of material in front of the screed. The screed takes the stockpile of material and spreads it over the width of the road and provides initial compaction.
The paver should provide a smooth uniform surface behind the screed. In order to provide a smooth surface a free floating screed is used. It is towed at the end of a long arm which reduces the base topology effect on the final surface. The height of the screed is controlled by a number of factors including the attack angle of the screed, weight and vibration of the screed, the material head and the towing force.
To conform to the elevation changes for the final grade of the road modern pavers use automatic screed controls, which generally control the screed's angle of attack from information gathered from a grade sensor. Additional controls are used to correct the slope, crown or superelevation of the finished pavement.
In order to provide a smooth surface the paver should proceed at a constant speed and have a consistent stockpile of material in front of the screed. Increase in material stockpile or paver speed will cause the screed to rise resulting in more asphalt being placed therefore a thicker mat of asphalt and an uneven final surface. Alternatively a decrease in material or a drop in speed will cause the screed to fall and the mat to be thinner.
The need for constant speed and material supply is one of the reasons for using a material transfer unit in combination with a paver. A material transfer unit allows for constant material feed to the paver without contact, providing a better end surface. When a dump truck is used to fill the hopper of the paver, it can make contact with the paver or cause it to change speed and affect the screed height.
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