Starch Factory Lack of Front-End Pretreatment, Desander Optimizes Whole Line Stability
March 17, 2026
In wet processing of cassava, potato, corn, sweet potato and other starches, front-end desanding pretreatment is critical to the stable operation of the entire production line. Many plants skip special desanding equipment to simplify layout or reduce initial investment, allowing sand, grit, mud and heavy impurities to enter the main separation system directly. These impurities cause accelerated wear, frequent blockages, seal failure and lower separation accuracy on hydrocyclones, pumps, pipes and screens. As a result, equipment failure rates rise, downtime increases, maintenance costs go up, and starch suffers from low whiteness, high ash content and unstable quality—seriously reducing overall efficiency and economic benefits.
As a professional front-end centrifugal desander for starch slurry, the Desander can be quickly installed after pulping and before main separation equipment to fill the pretreatment gap and remove impurities from the source, fully optimizing line stability. With an eccentric inlet, the unit creates a strong swirling flow; under centrifugal force and gravity, mud and sand settle rapidly for separation, and cleaned slurry flows steadily to downstream stages.
The whole unit has no moving parts, featuring simple structure, reliable operation, no jamming, no extra failure points and nearly zero daily maintenance. The body is made of SS304 stainless steel or wear-resistant nylon, offering high wear and corrosion resistance for long service life and 24-hour continuous production. The machine is CE certified to meet international food processing standards, suitable for both new and retrofitted starch lines worldwide.
The Desander comes in standard models of 10t/h, 15t/h, 20t/h and accepts customized capacity, perfectly matching different starch plant scales. It quickly improves full-line stability, reduces failure rates, extends equipment life and upgrades starch quality without major process changes.
- Prioritize adding a Desander to lines without front-end pretreatment to eliminate impurity-related failures.
- Select model based on actual hourly capacity: DS2 (10t/h), DS4 (15t/h), DS4+1 (20t/h).
- Choose SS304 or wear-resistant nylon construction for better durability and lower long-term cost.
- Standard layout: install after crushing/pulping and before refining hydrocyclones to form a stable “desanding + refining” process.
- Use CE-certified, no-moving-parts units for better overseas compliance and long-term stable operation.