Stainless Steel Tank Body: Capacity 500-10,000 liters

Component Specifications

Definition

A cylindrical or rectangular stainless steel vessel that forms the main containment structure of an industrial-scale yogurt fermentation tank. It is engineered to maintain precise temperature control (typically 40-45°C for fermentation), withstand internal pressures, and facilitate easy cleaning and sanitation. The body includes features such as insulation jackets, agitation systems, and ports for monitoring and process integration.

Working Principle

The tank body provides a sealed, temperature-controlled environment where milk is inoculated with bacterial cultures (e.g., Lactobacillus bulgaricus, Streptococcus thermophilus) and held at optimal conditions for fermentation. Heat transfer occurs through jacketed walls or internal coils, while agitation ensures uniform mixing and consistency. The stainless steel construction prevents contamination and supports CIP (Clean-in-Place) systems.

Materials

Austenitic stainless steel (e.g., AISI 304 or 316L), with food-grade certification. Thickness: 2-5 mm, depending on capacity and pressure requirements. Surface finish: Ra ≤ 0.8 μm (electropolished or mechanically polished) to minimize bacterial adhesion.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Ports	Inlet, outlet, sampling, CIP spray ball, temperature/pH probes
Capacity	500-10,000 liters
Agitation	Top-mounted or side-entry mixer (10-50 RPM)
Insulation	Polyurethane foam (50-100 mm thickness)
Design Pressure	0-3 bar
Operating Temperature	0-100°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14159, DIN 11850, 3-A Sanitary Standards

Parent Products

This component is used in the following industrial products

Industrial-Scale Yogurt Fermentation Tank

Temperature-controlled stainless steel vessel for large-scale yogurt fermentation.

View Product Details

Engineering Analysis

Risks & Mitigation

Microbial contamination due to surface defects
Temperature fluctuation affecting fermentation
Corrosion from acidic products or cleaning agents

FMEA Triads

Trigger: Improper welding or surface finish
Failure: Bacterial biofilm formation
Mitigation: Use certified welders, electropolish surfaces, and implement strict CIP protocols.

Trigger: Insulation failure or heater malfunction
Failure: Inconsistent fermentation temperature
Mitigation: Install redundant temperature sensors, regular calibration, and use high-quality insulation materials.

Trigger: Exposure to chlorides or acidic environments
Failure: Pitting corrosion
Mitigation: Specify 316L stainless steel for enhanced corrosion resistance and monitor cleaning chemical concentrations.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerance ±2 mm, temperature control ±0.5°C

Test Method

Pressure testing (hydrostatic or pneumatic), surface roughness measurement, microbial swab tests

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Stainless Steel Tank Body

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Frequently Asked Questions

Why is stainless steel used for yogurt fermentation tanks?

Stainless steel is corrosion-resistant, non-reactive, easy to clean, and meets food safety standards, preventing contamination and ensuring product purity.

How is temperature controlled in the tank body?

Temperature is regulated via a jacketed system (hot/cold water or glycol circulation) or internal coils, often with automated PID controllers for precision.

What maintenance is required for the tank body?

Regular CIP cycles, inspection for surface scratches or corrosion, and seal/gasket replacement to maintain hygiene and structural integrity.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Stainless Steel Tank Body