Double-Polished Screw Flight (Mirror-Finished Spiral Blade)

Product Overview

Double-Polished Screw Flights are precision-engineered conveying components featuring mirror-finished surfaces on both sides. These ultra-smooth spiral blades are specifically designed for industries requiring strict hygiene standards, contamination prevention, and optimal material flow characteristics. The dual-side polishing process creates a non-porous surface that resists material buildup and facilitates easy cleaning.

Key Features

1. Dual-Side Mirror Finish - Ra ≤ 0.4μm surface roughness on both faces

2. Hygienic Design - Eliminates bacterial harborage points for sanitary applications

3. Material Versatility - Available in 304/316 stainless steel or special alloys

4. Precision Forming - CNC-controlled fabrication maintains exacting tolerances

5. Non-Stick Properties - Ultra-smooth surface prevents material adhesion

6. Corrosion Resistance - Ideal for wet, acidic, or caustic environments

Technical Specifications

Performance Advantages

✔ Superior Cleanability - Meets strict sanitary requirements ✔ Reduced Product Contamination - Non-porous surface prevents bacterial growth ✔ Improved Material Flow - Minimizes friction and product degradation ✔ Extended Service Life - Corrosion-resistant materials withstand harsh cleaning ✔ Energy Efficiency - Low-friction surface reduces power consumption

Primary Applications

Food & Beverage Industry

• Dairy product processing

• Confectionery manufacturing

• Powdered food handling

• Pharmaceutical-grade ingredients

Pharmaceutical & Cosmetic

• Active pharmaceutical ingredients (APIs)

• Cosmetic powder conveying

• Nutraceutical production

• Vaccine manufacturing

Specialty Chemical

• High-purity chemical transport

• Food-grade additive handling

• Semiconductor material processing

• Biotechnology applications

Customization Options

• Material Selection: Various stainless steel grades and alloys

• Surface Finishes: From #4 Brushed to #8 Mirror polish

• Special Geometries: Custom pitch, diameter, and thickness

• Connection Methods: Welded, bolted, or sanitary clamp fittings

• Validation Packages: Material certifications and surface roughness reports

Quality Assurance

• ISO 9001 & 13485 certified manufacturing

• 100% surface inspection under controlled lighting

• Passivation and electropolishing available

• Full material traceability documentation

• Cleanroom packaging options