CONSTMACH's log washer stands out as a practical solution for operations dealing with clay-heavy aggregates and contaminated materials. This machine addresses a common challenge in the aggregate processing industry: achieving thoroughly cleaned material while maintaining production efficiency. The 2000 × 7000 mm double-row model combines robust engineering with straightforward operation, making it a reliable choice for construction and mining applications.
At the core of this log washer's effectiveness lies its twin-shaft design equipped with specially engineered rotating paddles. These paddles create a powerful scrubbing action that breaks down stubborn clay content and removes heavy contaminants from aggregates. The double-row carrier spiral spoons, manufactured from S235JR steel with 8mm sheet thickness, work continuously to agitate and clean the material as it moves through the washing chamber. What makes this design particularly effective is the wear protection system: the arms are covered with casting material, and the helices feature Hardox coating. This combination ensures the machine maintains its cleaning performance even when processing abrasive materials day after day.
The shaft system deserves special attention. Constructed from Cr-Ni-Mo alloy steel and supported by SKF or FAG heavy-duty spherical roller bearings, these shafts rotate at a controlled speed of 15-25 rpm. This relatively slow rotation might seem counterintuitive, but it's precisely calibrated to maximize the scrubbing action without causing unnecessary wear or material loss. The housing, made from GS52 steel casting, provides the structural integrity needed to handle the mechanical stresses generated during operation. Operators can adjust both the angle and speed of the shafts, allowing them to fine-tune the cleaning process based on the specific characteristics of the material being processed.
The machine's capacity range of 200-400 tons per hour makes it suitable for operations of varying scales. It handles material with a feeding size up to 50mm, which covers most typical aggregate processing needs. Two 37 kW GAMAK brand motors (IE3 efficiency class, 1500 rpm) provide the power, and this dual-motor configuration ensures consistent performance across the entire capacity spectrum. The main body, constructed from S235JR A1 quality 8mm sheet in twisted type configuration, balances durability with practical maintenance access.
From a maintenance perspective, this log washer was designed with operational reality in mind. Critical components are accessible without extensive disassembly, which means routine servicing can be completed quickly. This design philosophy translates directly into reduced downtime and lower operational costs over the machine's lifetime. At 24,000 kg, the unit has substantial mass that contributes to its stability during operation, yet it remains manageable for installation and relocation when necessary.
The practical applications of CONSTMACH's log washer span multiple sectors. Construction sites benefit from cleaner aggregates that directly improve concrete quality and structural integrity. Mining operations use these machines to separate valuable minerals from clay and waste materials efficiently. Recycling plants find them essential for processing reclaimed aggregates, transforming previously contaminated material into construction-ready resources. Beyond producing cleaner output, the machine helps protect downstream equipment by removing abrasive contaminants early in the processing chain, extending the service life of crushers, screens, and other machinery.
CONSTMACH has engineered this log washer to deliver consistent results in demanding environments where aggregate quality cannot be compromised. The combination of durable construction, adjustable operation parameters, and efficient cleaning mechanisms makes it a sound investment for operations that depend on high-quality processed materials.
