CSW-80 Screw Sand Washer ( Spiral Sand Washing ) 50-90 m3/h

The CSW-80 screw sand washer from CONSTMACH delivers reliable performance for operations requiring efficient cleaning of fine materials contaminated with clay and dirt. This spiral washing system handles capacities between 50 and 90 cubic meters per hour, making it a practical choice for medium-scale aggregate processing facilities. The machine processes gravel, sand, and crushed stone in the 0-5 mm range, removing unwanted impurities while maintaining material quality.

Built with an 800 mm diameter drum extending 8,000 mm in length, the CSW-80 features a robust construction designed for continuous operation in demanding environments. The twin 11 kW motors drive the system at 20 rpm, creating the optimal rotation speed for effective material washing without excessive wear. This configuration ensures thorough cleaning while minimizing energy consumption compared to higher-speed alternatives.

The heavy steel plate construction forms the foundation of the CSW-80's durability. CONSTMACH engineers specifically designed the body to withstand the abrasive nature of sand and gravel processing. The oil-lubricated heavy-duty gearbox represents another critical component, built to company specifications rather than off-the-shelf solutions. This custom approach results in a large operating service factor that extends the machine's working life considerably. Operators can expect years of reliable service with proper maintenance, reducing total cost of ownership.

Replaceable rubber paddles distinguish this screw washer from less flexible designs. These components contact the material directly during the washing process, and their replaceable nature means maintenance teams can swap worn paddles quickly without extended downtime. The single or twin shaft configurations provide flexibility for different application requirements, though the CSW-80 specifically utilizes the twin shaft setup for balanced operation.

Material enters the washer at one end, where the rotating screws lift it through a water flow of 45 to 65 cubic meters per hour. This water requirement remains manageable for most plant setups with basic water recycling systems. As the screws turn, they separate clay and dirt particles from the aggregate, allowing contaminated water to drain while clean material advances toward the discharge end. The process handles 0-3 mm material at 50 cubic meters per hour or increases to 90 cubic meters per hour for slightly coarser 0-7 mm feed.

Weighing 6,250 kilograms, the CSW-80 requires proper foundation preparation but doesn't demand the heavy infrastructure of larger washing systems. The convenient assembly design simplifies installation at new sites or when relocating equipment. Easy maintenance access points allow technicians to perform routine service without specialized tools or excessive disassembly.

CONSTMACH screw washers address a specific challenge in concrete and aggregate production: removing excessive fines and contaminants that reduce final product quality. The CSW-80 sits in the middle of the product range, offering capabilities beyond smaller units while maintaining the straightforward operation and maintenance that makes screw washers popular across the industry.