Cat® SDX Screed Plate System

Features at a Glance

Innovative Material Flow

    
• Angular surface provides a kneading action as it passes through the grooves
    
• Tapering flat surface at the back of the plates provides a smooth finished surface
    
• Confined mixing action manipulates aggregates to reduce air voids and increase density while creating a more uniform surface texture
    
• Optimized aggregate structure promotes surface temperature uniformity for more consistent compaction
    
• Enhanced structural integrity minimizes roller shoving for better smoothness
    
• Increased stiffness strengthens unconfined edges, promotes better joint matching

Increased Density and Smoothness

    
• Kinetic mixing action helps increase the bond interface between the asphalt binder and aggregate
    
• Mixing action of the angular plates promote better thermal uniformity for improved compaction characteristics
    
• Increased density enables compaction to take place on a hotter surface shortening the compaction train
    
• Increased stiffness leads to better longitudinal edge profiles and higher joint densities due to less lateral movement of the mix when being compacted
    
• Higher densities produced by the screed plates can lead to increased bonus opportunities

Faster Screed Plate Changes

    
• Hardware-free screed plate installation saves time and effort
    
• Tapered blocks integrated into the screed plates fit over the beveled edge of the adapter plates and are held in place with high-temperature silicone retainers that maintain tension for reliable performance
    
• One-time adapter plate install attaches to the screed frame utilizing the existing screed plate orientation
    
• Heating elements attach to the adapter plates
    
• Modular screed plates come in 300 mm (12”) sections that weigh approximately 16 kg (35 lbs.). The plates are interchangeable across the screed width to help maximize wear.
    
• The center screed section consists of 100 mm (4”) plates that weigh approximately 5 kg (12 lbs.). These narrow plates allow for crown at the center of the screed.