Description

SCY Series Cylinder Cleaning Sieve – Efficiently Remove Coarse Impurities, Guard the First Step of Your Production Line

The SCY series cylinder cleaning sieve is a front-end pretreatment device in feed processing and grain cleaning sections, primarily used for primary cleaning of granular raw materials such as corn, wheat, soybean, and paddy. This equipment features a rotating cylindrical screen structure that efficiently removes coarse impurities such as corn cobs, stones, mud clods, ropes, and woven bag fragments, while also providing good separation of light impurities (e.g., straw, dust). With its compact structure, large capacity, and high screening efficiency, the SCY series is widely used in raw material receiving and cleaning processes of feed mills, flour mills, rice mills, oil mills, distilleries, and biomass pellet plants.

1. Equipment Overview and Model Designation

Main models of the SCY series cylinder cleaning sieve include SCY50, SCY63, SCY80, SCY100, etc. The number in the model indicates the screen cylinder diameter (in cm). For example, SCY63 means a cylinder diameter of 63 cm, with a capacity of 20-30 tons per hour; SCY100 is a large model with a capacity of 40-60 tons per hour. Users can flexibly select according to raw material receiving volume and line capacity.

2. Working Principle

The SCY cylinder cleaning sieve mainly consists of a motor, reducer, screen cylinder (cylindrical screen), feed hopper, discharge outlet, impurity outlet, and frame.

During operation, material flows continuously and uniformly into the rotating cylindrical screen through the feed hopper. The screen cylinder rotates slowly (typically 20-30 rpm) driven by a motor via a reducer. The material tumbles and slides as the cylinder rotates. Granular material smaller than the screen openings falls through and is discharged to the next process; coarse impurities larger than the screen openings move toward the end along the inner wall of the cylinder and are finally discharged through the impurity outlet. Light impurities (e.g., dust, awns) can be partially separated with the help of an aspiration system at the feed inlet.

3. Core Advantages & Technical Features

1. Large capacity, low power consumption
   The cylindrical screen structure provides a long material flow path, allowing much higher throughput than vibrating screens of the same size. The SCY100 can achieve 60 t/h with only 2.2-3 kW of motor power, resulting in extremely low energy consumption per ton.

2. Good cleaning efficiency, thorough impurity removal
   Removal rate for coarse impurities exceeds 99%, effectively protecting downstream equipment such as hammer mills and pellet mills from damage by foreign objects. Also reduces clogging risks.

3. Simple structure, reliable operation
   No complex vibrating mechanisms; the main moving part is a low-speed rotating cylinder, resulting in low failure rates. Bearings and drive components are sealed for long-term operation in dusty environments.

4. Easy screen replacement
   The screen cylinder uses segmented or one-piece screens secured with quick-clamping mechanisms. Screen replacement requires no special tools and can be completed in 15-20 minutes after shutdown. Common screen opening sizes are 12mm, 16mm, 20mm, 25mm, etc., selectable according to particle size and impurity characteristics.

5. Anti-clogging design
   The inner wall of the screen cylinder is equipped with guide plates or anti-winding devices to prevent long impurities such as ropes from wrapping around the cylinder. The impurity outlet is equipped with adjustable baffles or inspection doors for easy internal cleaning.

6. Suitable for various materials
   In addition to corn, wheat, soybean, and paddy, it can also clean coarse impurities from peanuts, coffee beans, pelleted feed, wood chips, plastic pellets, etc.

7. Sealed and environmentally friendly
   Fully sealed construction with dust extraction connections at inlet and outlet, preventing dust leakage and meeting environmental emission requirements.

8. Flexible installation
   Can be floor-mounted or suspended; discharge height can be customized. Optional feed surge hopper, permanent magnet drum, and iron removal device can form an integrated cleaning section.

4. Typical Applications

• Feed mill raw material receiving: Remove corn cobs, stones, ropes from corn, wheat, soybean meal to protect hammer mill hammers and pellet mill dies.

• Flour mill/rice mill: Primary cleaning of wheat and paddy before storage, removing straw, stones, mud clods to improve final product purity.

• Oil mill: Primary cleaning of oilseeds such as soybean, rapeseed, peanuts to reduce equipment wear.

• Distillery/alcohol plant: Cleaning of sorghum, barley, corn to ensure stable fermentation.

• Biomass pellet plant: Removal of bark, stones, metal from wood chips and straw to prevent damage to pellet mill dies.

5. Model Parameters and Selection Guide

Selection considerations:

1. Capacity requirements: Select model based on peak raw material receiving flow, generally 1.2 times the rated line capacity.

2. Material characteristics: For high-moisture, high-fiber materials (e.g., wet corn), choose larger screen openings; for poor flowability materials, consider longer cylinder or additional inner baffles.

3. Impurity types: If long impurities (ropes, bags) are prevalent, choose models with anti-winding devices and large impurity outlets.

4. Installation space: Pay attention to overall height and orientation of inlet/outlet for easy connection to bucket elevators or screw conveyors.

5. Dust collection: If strict environmental regulations apply or large dust generation, select models with dust hood and collector connections.

6. Maintenance and Care

1. Daily checks: Clean accumulated material at impurity outlet; check for screen cylinder clogging or wrapping; monitor bearing temperature (≤70°C).

2. Weekly checks: Check belt tension or reducer oil level; inspect screen for damage and replace if holes are found.

3. Monthly checks: Check bearing housing bolts and anchor bolts; clean material adhered to inner/outer walls of cylinder.

4. Semi-annual maintenance: Replace reducer gear oil (first change after 500 hours, then every 2000 hours); inspect all seals.

5. Wear parts management: Screens are wear parts – keep 2-3 sets of commonly used opening sizes; use premium brand bearings.

7. Common Issues and Solutions

Conclusion

The SCY series cylinder cleaning sieve, with its large capacity, low energy consumption, high cleaning efficiency, and simple, reliable construction, is an ideal equipment for raw material cleaning in feed, grain, and biomass industries. Proper selection and regular maintenance not only protect downstream equipment and extend line life but also improve final product quality. We offer the full SCY series from SCY50 to SCY100 as well as complete cleaning section solutions. Contact us for inquiries or sample testing.

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