Sealed high-hygiene mixing

Bottom-Entry Magnetic Mixing Tank

A compact bottom-mounted magnetic drive arrangement for high-hygiene processes, cleanable product contact and effective mixing at reduced liquid levels.

Bottom-entry magnetic mixing tank installed with sanitary piping in a pharmaceutical cleanroom
Bottom-entry magnetic mixing tank arranged for sealed product contact and high-hygiene operation.

Quick answer

What this equipment is designed to do.

A bottom-entry magnetic mixing tank transfers torque through a containment boundary using magnetic coupling, avoiding a conventional rotating shaft penetration through the vessel wall. It is considered for high-hygiene duties, cleanability and useful low-level mixing.

Magnetic coupling changes the containment and maintenance approach, but it does not remove the need for careful process selection. Torque demand, viscosity, solids, operating level, temperature and cleaning cycle must remain within the selected mixer envelope.

Vessentra coordinates the vessel bottom, magnetic mixer, impeller clearance, drain outlet and service access. Product-contact materials and cleaning or sterilisation requirements are confirmed against the project specification.

Typical applications

Where this vessel fits.

Application details are reviewed before equipment configuration is finalised.

  • 01Pharmaceutical liquids
  • 02Bioprocess support fluids
  • 03Purified process solutions
  • 04Sensitive personal care batches
  • 05High-hygiene product holding
  • 06Clean liquid blending

Engineering configuration

Configured around your duty.

The equipment is developed from process inputs, operating conditions, cleaning requirements and site interfaces.

01

Magnetic drive selection

Required torque, speed, product properties and operating temperature are checked against the coupling and motor arrangement.

02

Bottom geometry

Mixer position, impeller clearance, outlet and drainability are coordinated to avoid conflicts and support cleaning.

03

Hygienic boundary

Product-contact materials, containment components and elastomers are selected for the medium and cleaning cycle.

04

Service access

Clearance beneath the vessel and removal paths are planned around installation and maintenance requirements.

Specification guidance

Define the operating basis before fabrication.

Project limits are confirmed through engineering review. These fields describe the decisions needed for an accurate, application-specific configuration.

Mounting Bottom-entry magnetic coupling
Product-contact boundary No conventional rotating shaft penetration
Operating range Verified for project viscosity, level and torque
Impeller Selected for circulation and shear objective
Product-contact material Defined by process compatibility
Cleaning CIP-ready features available
Sterilisation Project-specific SIP evaluation where required
Service clearance Defined around the selected drive and installation

Common questions

Answers for project planning.

How does a magnetic bottom-entry mixer work?

An external drive rotates magnets that transmit torque across a sealed containment boundary to the internal impeller, avoiding a conventional dynamic shaft penetration.

Is a magnetic mixer suitable for every viscosity?

No. Available torque, impeller size, speed, temperature and coupling design define the usable range. Product data must be reviewed before selection.

Why consider bottom-entry mixing at low liquid level?

Locating the impeller near the vessel bottom can maintain local circulation at lower levels, although the minimum effective level is specific to the tank and mixer geometry.

Can it be configured for pharmaceutical projects?

Yes, subject to the user requirement specification, materials, cleanability, sterilisation strategy, documentation and applicable project standards.

Talk to engineering

Start with the process requirement.

Share the product, working volume, operating conditions, cleaning method and project location. We will use them to structure the next engineering conversation.

Discuss your project