Structured Manufacturing Data (2026)

Agitator/Stirrer Assembly

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Agitator/Stirrer Assembly used in the Chemical Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Agitator/Stirrer Assembly is characterized by the integration of Drive Motor and Main Shaft. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel 316L construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Mechanical assembly within a crystallization vessel that provides controlled agitation to promote crystal formation and prevent sedimentation.

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Product Specifications

Technical details and manufacturing context for Agitator/Stirrer Assembly

Definition
A critical component of crystallization vessels consisting of a motor-driven shaft with attached impellers or paddles that rotates to create fluid motion within the vessel. This assembly ensures uniform temperature distribution, prevents localized supersaturation, promotes nucleation and crystal growth, and maintains suspension of solid particles during the crystallization process.
Working Principle
The assembly is driven by an electric motor that transmits torque through a shaft to impellers submerged in the crystallization solution. As the impellers rotate, they create fluid shear and circulation patterns that mix the solution, distribute heat evenly, prevent crystal settling, and control crystal size distribution through controlled agitation intensity.
Common Materials
Stainless Steel 316L, Hastelloy C-276
Technical Parameters
  • Shaft diameter and length, impeller diameter, number of impellers (mm) Per Request
Components / BOM
  • Drive Motor
    Provides rotational power to the shaft
    Material: Cast Iron/Stainless Steel
  • Main Shaft Part
    Transmits torque from motor to impellers
    Material: Stainless Steel 316L
  • Impeller/Paddle Part
    Creates fluid motion and mixing patterns
    Material: Stainless Steel 316L/Hastelloy
  • Seal Assembly Part
    Prevents leakage at shaft-vessel interface
    Material: PTFE/Ceramic

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Agitator/Stirrer Assembly.

chemical crystallization agitator assembly stainless steel 316L stirrer for crystallization Hastelloy C-276 agitator shaft industrial crystallization vessel stirrer mechanical agitator for crystal formation

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Crystallization Vessel
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar (gauge)
flow rate: 0.1 to 5 m/s tip speed
temperature: -20°C to 200°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ Aqueous salt solutions ✓ Organic solvent mixtures ✓ Pharmaceutical slurries
Unsuitable: Highly corrosive media (e.g., concentrated hydrochloric acid)
Sizing Data Required
  • Vessel volume (m³)
  • Desired mixing intensity (tip speed, m/s)
  • Slurry viscosity (cP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue failure
Cause: Excessive radial loads from process imbalances, misalignment, or improper lubrication leading to spalling and premature wear.
Shaft seal leakage
Cause: Abrasive particle ingress, thermal cycling, or mechanical seal face degradation due to dry running or cavitation-induced vibration.
Maintenance Indicators
  • Unusual high-frequency vibration or audible grinding from the drive assembly
  • Visible fluid leakage around the shaft seal or discoloration/overheating at bearing housings
Engineering Tips
  • Implement precision laser alignment during installation and re-alignment after maintenance to minimize bearing loads and shaft deflection.
  • Establish condition-based monitoring with vibration analysis and thermography to detect early-stage bearing/seal degradation before catastrophic failure.

Compliance & Manufacturing Standards

Reference Standards
ISO 1940-1:2003 (Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state) ANSI/ASME B73.1-2012 (Specification for Horizontal End Suction Centrifugal Pumps for Chemical Process) DIN 28136-2:1994 (Agitators - Dimensions, nominal speeds, power input)
Manufacturing Precision
  • Shaft runout: ≤0.05mm at bearing journals
  • Impeller blade thickness uniformity: ±0.5mm across all blades
Quality Inspection
  • Non-destructive testing: Magnetic particle inspection of welds and critical components
  • Performance validation: Hydrostatic pressure test at 1.5x maximum operating pressure for 30 minutes

Factories Producing Agitator/Stirrer Assembly

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Supply Chain Compatible Machinery & Devices

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Automated system for precise dispensing and homogeneous blending of powdered chemicals.

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Automated Solvent Recovery and Purification System

Automated system for recovering and purifying industrial solvents.

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Frequently Asked Questions

What are the benefits of using Hastelloy C-276 in agitator assemblies for chemical manufacturing?

Hastelloy C-276 offers exceptional corrosion resistance against a wide range of aggressive chemicals, including chlorides and acids, making it ideal for harsh crystallization environments where material integrity is critical.

How does the agitator assembly prevent sedimentation in crystallization vessels?

The assembly's impeller/paddle design creates controlled fluid motion that keeps particles suspended, ensuring uniform crystal growth and preventing solids from settling at the bottom of the vessel.

What maintenance is required for the seal assembly in these agitators?

Regular inspection for wear and leakage is recommended, with replacement based on operational hours and chemical exposure. Proper lubrication and alignment during installation help extend seal life in demanding chemical environments.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Chemical Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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