The SW-1850 Mobile Sand Screening and Washing Plant represents a practical engineering solution for operations requiring efficient processing of natural aggregates at a capacity of 150 tons per hour. This self-contained system integrates essential screening and washing equipment onto a single wheeled chassis, designed specifically for contractors and producers who need flexibility in their sand and gravel operations.
The plant's mobility sets it apart in the market. Built on a wheeled chassis equipped with hydraulic stabilization legs, the entire unit can be relocated between job sites without extensive dismantling. The compact transport dimensions of 16 meters in length, 3.65 meters in width, and 4.4 meters in height comply with international road transport regulations, making inter-site transfers straightforward. Once positioned, the hydraulic support system provides the stability necessary for continuous operation while maintaining the ability to move when project demands shift.
At the heart of the SW-1850 sits a 1,800 x 5,000 mm vibrating screen that handles material classification with integrated washing capabilities. Material enters through a dedicated feeding hopper positioned at 4,700 mm height, allowing trucks and loaders adequate clearance during loading operations. The feeding conveyor maintains steady material flow from the hopper to the screening deck, preventing surges that could compromise separation efficiency. This vibrating screen works in conjunction with a 600 x 6,000 mm screw washer, which removes clay, silt and other contaminants from the aggregate. The washing process ensures the final product meets specifications for concrete production and other applications where clean material is non-negotiable.
The fold-up stockpile conveyors provide another layer of operational flexibility. These conveyors can be positioned to create separate stockpiles for different size fractions, and their collapsible design reduces the footprint during transport. The total motor power requirement of 50 kW keeps energy consumption reasonable while maintaining processing capacity. For sites without reliable grid power, the plant can accommodate a diesel generator set rated at 100 kVA, though this remains an optional configuration for operators with existing power infrastructure.
Automation plays a significant role in the SW-1850's operation. The control system utilizes components from established manufacturers like Siemens and Schneider, integrated with a programmable logic controller that manages all plant functions. Operators control the entire system through a tablet interface, eliminating the need for multiple control stations and reducing the staffing requirements typical of larger fixed installations. This remote operation capability also improves safety by allowing personnel to monitor the process from a distance.
The plant's versatility extends beyond its primary washing function. Operators can remove the screw washer assembly and reconfigure the unit for dry screening applications when washing isn't required. This adaptability makes the SW-1850 suitable for various material types and project specifications without requiring a completely separate piece of equipment. The 32,000 kg operating weight provides stability during operation while remaining manageable for transport purposes.
CONSTMACH engineered the SW series to address the practical challenges faced by aggregate producers working across multiple locations. The quick installation time means less downtime between moves, and the reduced land requirements make the plant viable for sites where space comes at a premium. For operations processing natural sand and gravel where both screening accuracy and washing efficiency matter, the SW-1850 delivers consistent performance in a transportable package.