The double screws compost turning machine is specialized equipment designed for rail-mounted, in-trough operation. It utilizes two symmetrically and synchronously rotating spiral shafts to perform four key functions: turning, breaking up, oxygenating, and mixing materials. Specifically engineered for closed-loop operations in ground-level concrete fermentation troughs, the machine travels linearly back and forth along rails to turn organic waste across the full depth of the trough, thereby facilitating the ventilation, heat dissipation, and vertical material exchange essential for aerobic fermentation.
Livestock and poultry manure (chicken, cattle, pig, etc.); crop stalks, distillers' grains, spent mushroom substrate, and garden waste; municipal dewatered sludge, traditional Chinese medicine residues, and sugar mill filter mud; and various other organic waste residues. It accommodates fermentation feedstocks with high viscosity and fluctuating moisture content, allowing for direct feeding and turning without complex pre-crushing.
Small-to-medium-sized organic fertilizer processing plants (serving as the initial composting/fermentation stage within a complete production line);
On-site manure resource recovery facilities at large-scale livestock farms (for pre-treatment and sanitization of manure before land application);
Municipal environmental protection sludge disposal centers and crop stalk recycling/processing plants;
Edible mushroom production bases and agricultural planting parks (for the in-house fermentation of organic substrates).
Upstream: Combine a livestock manure dewatering machine with a straw crusher for pretreatment; maintaining a material moisture content of 50%-60% ensures optimal fermentation results.
Downstream: After composting is complete, integrate the system with an organic fertilizer screening machine, a disc granulator, and drying/cooling equipment to produce granular commercial organic fertilizer.
Multi-channel facilities: A rail-mounted transfer carriage is essential; a single twin-spiral turner can service 3 to 6 fermentation channels, offering the best cost-performance ratio.
The counter-rotating twin spirals create a three-dimensional turning action, lifting bottom-layer material while sinking surface material, ensuring no anaerobic clumps remain in the trough corners. Ample oxygen supply activates thermophilic bacteria, shortening the standard composting cycle to 10-15 days; it more effectively destroys insect eggs and weed seeds, resulting in finished organic fertilizer with uniform and stable nutrient quality.
Turning depths reach 1.5-3 meters, allowing for deeper, taller fermentation troughs; this requires 30% less land than shallow-trough systems for the same processing capacity, making it ideal for retrofitting sites with limited space. Standard models fit trough widths of 2-5 meters, with Huaqiang Heavy Industry offering custom solutions for troughs wider than 6 meters.
The machine features a streamlined structure with standardized wear parts (such as bearings and gears) that are easily sourced on the market. Automated, timed turning means only one person is needed for periodic inspections, eliminating the need for manual shoveling inside the trough; spiral blades can be replaced individually without replacing the entire shaft, resulting in lower long-term maintenance costs.
Operations take place entirely within enclosed fermentation troughs, minimizing dust and odor emissions; the system can connect to workshop deodorization ducts and comprehensive exhaust treatment systems, easily meeting local environmental compliance standards for manure processing. The turning process simultaneously breaks up clumps, reducing the feed load on downstream semi-wet material crushers and ensuring smoother workflow integration across the entire fertilizer production line.
Purchasing a Huaqiang Heavy Industry double screws compost turning machine entitles you to comprehensive, one-stop service covering the pre-sales, in-sales, and post-sales stages.
Pre-sales services include free on-site facility surveys and the customization of machine models and fermentation trough layouts based on your site, materials, and production capacity, as well as free planning of the entire organic fertilizer production process. Customers are welcome to visit the factory to inspect the machinery and conduct trial runs with their own materials; for international clients, we provide all necessary customs clearance documentation and actual photos/videos of the equipment.
During the sales process, we provide real-time updates on production progress and supply a full set of technical drawings and quality certificates upon shipment. Equipment is securely packaged and reinforced for delivery; we offer remote online guidance for track embedding and infrastructure construction to prevent installation errors, and assist with customs declaration and container loading for export orders.
Post-sales support includes on-site installation and commissioning by engineers, along with hands-on training covering equipment operation, routine maintenance, and basic troubleshooting; engineers can remain on-site to oversee production until your staff are capable of operating independently. The entire machine comes with a 12-month warranty, long-term supply of genuine spare parts, and scheduled follow-up inspections.
| Model | Main Motor | Small Car Moving Motor | Big Car Moving Motor |
Hydraulic Pump Motor |
| SLP-10m | 15KW | 1.5KWX2 | 1.5KWX2(4) | 4KW |
| SLP-12m | ||||
| SLP-15m | ||||
| SLP-20m |
