Maximize Extraction. Minimize Power Consumption.
SED’s Milling Systems, also known as Milling Tandems, are precision-engineered units designed to extract maximum juice from prepared sugarcane with optimal energy efficiency. Featuring Three-Roller Mills with independently driven rollers, VFD-controlled motors, and integrated feeding mechanisms like the Toothed Underfeed Roller (TUFR), these systems ensure uniform load distribution, high juice recovery, and smooth bagasse handling.
Built for continuous operation and energy efficiency, SED Milling Systems combine automation, precision engineering, and robust construction to deliver consistent performance while reducing operational costs.
HowIt Works
Cane Preparation
Harvested cane is fed onto a Cane Carrier, then chopped into smaller pieces by the Chopper and Cutter to improve extraction efficiency.
Cane Distribution
Chopped cane is evenly distributed in the Main Rack and directed toward the first mill for crushing.
Milling Process
The milling tandem consists of a series of Three-Roller Mills:
- Top Roller : Initiates compression and feeds cane to the lower rollers.
- Toothed Underfeed Roller (TUFR) : Provides consistent grip and feed for uniform extraction.
- Feed Roller (Chevron Grooved) : Ensures steady feeding and reduces slippage.
- Discharge Roller: Smooth bagasse discharge while maintaining optimized juice extraction.
Each roller has an independent VFD-controlled motor, eliminating reliance on energy-intensive main drives.
Sequential Milling
Bagasse is further chopped in intermediate cutters and passed to subsequent mills for enhanced extraction. The number of mills is adapted to plant scale and desired efficiency.
Juice Collection
Extracted juice from each mill is collected and transferred to the Mixed Juice Tank for downstream processing.
Bagasse Handling
Dry fiber (bagasse) is conveyed to storage yards using belt conveyors for reuse or power generation.
Challenges with Conventional Mills
High power consumption
Complex mechanical alignment
Frequent downtime and skilled maintenance
Bulky civil foundation requirements
High power consumption
Frequent downtime and skilled maintenance
Complex mechanical alignment
Bulky civil foundation requirements
SED’s MillDrive System Solution
Compact inline planetary drives
Eliminates heavy foundations and civil structures
Fewer components, spares, and lubrication points
Full automation with low-speed operation (1–4 RPM)
Key Advantages
| Efficiency | Direct Benefit |
|---|---|
| >90% Gearbox Efficiency | Reduced power bills to 10kw/Ton of cane |
| Variable Frequency Drives | Precision milling = Maximum juice extraction |
| Low-Speed Operation (1–4 RPM) | Higher Primary & Reduced Mill Extraction (PME/RME) |
| Fewer Components & Maintenance Points | Lower downtime & OPEX |
| No extra Foundation Required for gearbox and motor | Saved civil costs & faster erection |
| Semi-skilled Operation Feasible | Reduced manpower costs |
| Fully Auto Mode | Consistent performance with minimal supervision |
Streamlined DesignOptimized Savings
Join hundreds of global sugar factories already maximizing their yield while minimizing costs. Contact us today to discuss how Spray’s mill systems can upgrade your operations for the future.
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