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Thickened Stainless Steel Mixing Tank

Updated: 2026-08-12

Overview

Thickened stainless steel mixing tanks are industrial vessels engineered for high-capacity blending and storage applications. Their robust construction, typically using 304 or 316 stainless steel, ensures resistance to corrosion, high temperatures, and mechanical stress. These tanks are widely adopted in sectors requiring stringent hygiene standards, such as food processing, pharmaceuticals, and specialty chemicals. The thickened walls (6–10 mm) enhance durability, especially for viscous or abrasive materials. Customizable features include jacket options for heating/cooling, varied agitator types (e.g., paddle, anchor), and capacity ranges from 500 to 20,000 liters. Their design complies with industry standards like ASME or GMP, making them suitable for regulated environments.

Structure and Working Principle

The tank consists of a cylindrical body with a conical or flat bottom, a top-mounted agitator, and optional ports for material input/output. The agitator, driven by an electric motor, rotates at adjustable speeds to achieve uniform mixing. Jacketed models include an outer layer for thermal fluid circulation, enabling precise temperature control. Thickened walls mitigate deformation under heavy loads, while polished interior surfaces (Ra ≤0.6 µm) prevent bacterial buildup. Seals are often silicone or PTFE to maintain sterility. Advanced models integrate CIP (Clean-in-Place) systems for automated cleaning, reducing downtime.

Key Features

1. **Material Integrity**: 316L stainless steel offers superior resistance to chlorides and acids, ideal for corrosive environments. 2. **Sanitary Design**: Welded joints are ground smooth, and corners are radiused to eliminate crevices. 3. **Modularity**: Nozzles for sensors, vents, and sampling can be added per batch requirements. 4. **Energy Efficiency**: Variable-frequency drives (VFDs) optimize agitator power consumption. 5. **Scalability**: Stackable or horizontal configurations save floor space. 6. **Compliance**: Meets FDA, EHEDG, and 3-A standards for food/pharma use.

Application Areas

1. **Pharmaceuticals**: Homogenizing active ingredients or suspensions under GMP conditions. 2. **Food & Beverage**: Mixing sauces, dairy, or brewing ingredients. 3. **Chemicals**: Blending solvents, adhesives, or pigments. 4. **Cosmetics**: Emulsifying lotions or creams. 5. **Waste Treatment**: Aggregating slurries for further processing. Specialty variants serve niche roles, such as reactors for polymerization or fermentation.

Maintenance and Precautions

Regularly inspect agitator bearings and motor alignment to prevent imbalances. Use non-abrasive cleaners (e.g., nitric acid passivation) to maintain surface finish. Replace gaskets annually if exposed to extreme temperatures. Avoid overloading the tank beyond 80% capacity to prevent spillage during agitation. For jacketed tanks, monitor heat transfer fluid pressure to avoid leaks. Always verify material compatibility with the tank’s SS grade to prevent pitting or stress corrosion.

B2B Procurement Guide

1. **Supplier Evaluation**: Prioritize manufacturers with ISO 9001 certification and a portfolio of similar projects. 2. **Customization**: Specify required ports, agitator type, and surface finish (e.g., mirror polish for sanitization). 3. **Cost Factors**: Prices scale with material grade (316L costs ~20% more than 304), capacity, and automation features. 4. **Lead Time**: Standard units ship in 4–6 weeks; complex designs may take 10+ weeks. 5. **After-Sales**: Ensure availability of spare parts (e.g., seals, impellers) and technical support.

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