Iron Circular Vibratory Screen for Filter

For a Vibro Screen constructed in SS304 (Stainless Steel 304), the distinction between contact parts and non-contact parts is critical for hygiene, durability, and compliance with food, chemical, or pharma standards. Here’s a structured breakdown:

🔹 Contact Parts (Material touches the product)

• Screen Frame & Mesh – The sieve frame and wire mesh where material is separated.
• Top Cover (with gasket) – Prevents dust leakage and ensures product containment.
• Discharge Chutes (oversize & undersize outlets) – Directs screened material.
• Clamping Rings & Gaskets – Ensure tight sealing between frames.
• Tray/Deck Assembly – Holds the mesh and provides structural support.
• Rubber/Silicone Seals (if food-grade) – Prevent leakage and contamination.

🔹 Non-Contact Parts (No direct product contact)

• Base Frame / Stand – Structural support, usually SS304 for corrosion resistance.
• Vibration Motor Housing – Mounted below, not in contact with product.
• Spring Assemblies – Provide suspension and vibration isolation.
• Fasteners, Bolts, and External Hardware – Used for assembly, not touching product.
• Electrical Junction Box & Wiring – For motor connection, isolated from product zone.

⚙️ Why SS304 for Both?

• Contact parts: SS304 ensures hygiene, corrosion resistance, and compliance with FDA/food-grade standards.
• Non-contact parts: Though not mandatory, many suppliers also use SS304 for uniformity, aesthetics, and durability—especially in food/pharma applications.