Precision Woven Sleeves for Consistent Particle Classification in Flour Mills
Skytech Ultrafab Plan Sifter Sleeves are precision-woven nylon, polyester, or stainless steel wire mesh sleeves for use in plan sifter and centrifugal sifter equipment in flour milling, semolina, rice, and grain processing. Manufactured to exact dimensional tolerances for all major plan sifter OEM frames including Bühler, Ocrim, Sangati, and Alapala, our sleeves deliver consistent particle-size grading, long mechanical life, and easy cleaning.
What Are Plan Sifter Sleeves?
Plan sifter sleeves are the filtration and classification elements used in plan sifter machines — the core size-separation equipment in flour mills and grain processing plants. Each sleeve fits over a wooden or metal frame inside the sifter box and acts as a precision sieve through which ground flour, semolina, or grain passes. The aperture size of the sleeve determines the particle size separation — coarser sleeves for break passages and finer sleeves for reduction passages in the milling flow chart. Consistent aperture size and dimensional accuracy are critical for flour quality and mill performance.
Plan Sifter Sleeves
Features and Benefits
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Precise Aperture Tolerance:
Precision-woven monofilament mesh with ±3% aperture tolerance ensures consistent particle classification and stable flour quality across all milling passages
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Wide Aperture Range:
Available from 50 µm (fine flour classification) to 4000 µm (coarse grain grading) in a single sleeve product range covering all mill flow chart requirements
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Food-Safe Materials:
Nylon 6.6 and polyester monofilament meeting FDA 21 CFR and EU food-contact material regulations for direct contact with food grain and flour products
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Antistatic Options:
Antistatic monofilament grades reduce static build-up on sleeve surfaces — preventing fine flour particles from adhering to the mesh and reducing effective aperture size
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Stainless Steel Wire Mesh:
SS 316 wire mesh sleeves for grain and seed processing applications requiring metal-detectable sieve elements or resistance to cleaning chemicals
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OEM Frame Compatibility:
Sleeves manufactured to the exact frame dimensions of all major plan sifter OEMs — Bühler, Ocrim, Sangati, Alapala, Prokop, and custom frames
Technical Specifications
| Parameter |
Details |
| Available Materials |
Nylon 6.6 Monofilament, Polyester Monofilament, SS 316 Wire |
| Aperture Range |
50 µm – 4000 µm |
| Aperture Tolerance |
±3% (standard) | ±2% (precision grade) |
| Food Contact Compliance |
FDA 21 CFR, EU 10/2011 (nylon and polyester grades) |
| Antistatic Option |
Available for nylon monofilament grades |
| Max Temperature |
Nylon: 90°C | PES: 120°C | SS: 200°C |
| OEM Frames Covered |
Bühler, Ocrim, Sangati, Alapala, Prokop, custom |
| Sleeve Form |
Heat-bonded, sewn, or framed to customer drawing |
Applications
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Flour Milling:
Plan sifter sleeves for all break, reduction, and sizing passages in wheat flour, durum semolina, and specialty grain flour production
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Rice Processing:
Rice grading and classification sifter sleeves for whiteness grading, broken rice separation, and flaking operations in rice mills
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Maize and Corn Milling:
Maize grits, corn flour, and hominy grits particle classification in plan sifter machines in maize wet and dry milling operations
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Pulse and Spice Processing:
Dal, lentil, chickpea, and spice powder grading sleeves for consistent particle size in pulse mills and spice grinding facilities
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Starch and Feed:
Modified starch and animal feed particle classification sifter sleeves in starch conversion and compound feed manufacturing plants
Why Choose Skytech Ultrafab for Plan Sifter Sleeves?
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Mill-Flow Expertise:
Deep knowledge of flour mill flow charts — application engineers can specify the correct aperture size and monofilament grade for every passage in the milling process
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OEM Dimensional Accuracy:
Sleeves manufactured to ±0.5 mm frame dimension tolerance — critical for consistent sifter performance and prevention of bypassing around the sleeve edges
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Antistatic Technology:
Antistatic monofilament grades reduce blinding and improve throughput in high-flour-volume fine-passage plan sifter applications
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Fast Replacement Supply:
Common aperture sizes and OEM frame dimensions held in stock for same-week dispatch — minimising unplanned milling downtime from sifter sleeve failure
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Food Safety Compliance:
Full food-contact compliance documentation — FDA and EU regulation certificates supplied with every flour milling plan sifter sleeve order