The best industrial agitator for mixing solids and liquids bears the InoxMIM seal

InoxMIM’s TANDEM industrial blenders are high-performance mixing and agitation systems designed to process high-viscosity products under controlled pressure, temperature, and vacuum conditions.
 Its counter-rotating and modular configuration allows combining three agitation technologies in a single unit:

  • A TANDEM main agitator with a Anchor type blade and scrapers,
  • An auxiliary vertical agitator with a Cowles disc,
  • A bottom emulsifier that ensures homogeneous dispersion without aeration.

Thanks to this mechanical synergy, InoxMIM blenders offer optimized energy transfer, with fine and reproducible mixing results even in emulsification, dispersion, or complex reaction processes.

Manufactured entirely in AISI 316L stainless steel, with sanitary finishes and mechanical seals cooled by thermosiphon, these units are especially valued in the cosmetics, pharmaceutical, food, and chemical industries, where hygiene, precision, and stability of the final product are required.

Blenders

Technical advantages of the TANDEM system

The counter-rotating system of the TANDEM agitator guarantees a completely uniform mixture throughout the reactor volume, even in products with non-Newtonian rheological behavior.
 The interaction between the low-speed main shaft and the high-speed secondary shaft prevents the incorporation of air during the process, maintaining a stable texture and improving the final product quality.

Thanks to its modular configuration and the high power transmitted by the gearmotors, the TANDEM can process fluids of very different natures, from light emulsions to high-density pastes.
 This makes it a versatile unit capable of adapting to multiple formulations within the cosmetic, food, chemical, and pharmaceutical sectors.

The double mechanical seal system cooled by a pressurized thermosiphon allows continuous operation under vacuum or in a pressurized atmosphere up to 4 bar.
 This thermal control guarantees the shaft’s tightness, prevents fluid degradation due to temperature, and allows operation with sensitive or volatile products under safe conditions.

The scraper arms of the main agitator keep the tank walls free of adhesions, improving heat transfer between the product and the cooling or heating jacket.
 This effect significantly reduces thermal cycle times and ensures a uniform temperature throughout the volume, avoiding cold or overheated zones.

The synergistic combination of the three agitation systems (blade, Cowles disc, and bottom emulsifier) generates a highly efficient flow that shortens mixing times.
 In practice, this can translate into reductions of up to 40% in the total process time compared to conventional single-shaft systems, maintaining a constant quality batch after batch.

All TANDEM blenders are designed according to the most demanding standards in hygienic and industrial safety.
 The surfaces in contact with the product have a polished finish Ra ≤ 0.8 µm, and the materials are certified for food and pharmaceutical use, guaranteeing total traceability and regulatory compliance.

Critical elements, such as seals, bearings, and gaskets, are easily accessible and use standardized components from international suppliers.
 This simplifies preventive and corrective maintenance, minimizes downtime, and guarantees an operational availability greater than 98%, even in continuous production environments.

The FLUID pump pump is positioned as the most advanced solution in the range.
 Designed for dosing, flow control and recirculation of clean fluids, incorporating a high precision and low NPSHr hydraulic system.incorporates a high precision and low NPSHr hydraulic system.
 Allows stable flow stable flow control even under conditions of pressure variation, making it ideal forideal for use in pharmaceutical, cosmetic and biotechnology pharmaceutical, cosmetic and biotechnology installations..
 The variable speed motor and optimized geometry make it a strategic choice for highly demanding automated systems.

Operational and design advantages

  • Counter-rotating agitation system, consisting of a main shaft with scrapers and a high-speed secondary shaft.

  • Parallel gearmotor, which guarantees high torque and continuous operation.

  • Simple, double, or cartridge mechanical seals, with the possibility of cooling by pressurized thermosiphon.

  • Anchoring by DIN 2576 flange or IEC type, adaptable to tanks of different capacities and geometries.

  • Interchangeable components according to the type of fluid, viscosity, and process.

  • Versions with stainless steel fairing and frequency inverter, for fine adjustment of speed and control of transmitted torque.

  • Materials in contact with the product: AISI 316L.

  • External structural materials: AISI 304L or carbon steel, with Hastelloy or AISI 904L option for corrosive applications.

Most common industrial applications

Cosmetic and pharmaceutical industry

The TANDEM system is widely used in the manufacture of creams, lotions, ointments, masks, gels, or hair products, guaranteeing fine emulsions and homogeneous textures.

The combination of the Anchor type blade with scrapers and the bottom emulsifier prevents sedimentation and ensures total dispersion of solids and fat phase even in high-viscosity formulations.

Its sealed design, with a double and refrigerated mechanical seal, allows operation under vacuum or positive pressure, preventing contamination by air or evaporation of solvents.

blender para cosméticos
blender para salsas

Food industry

Suitable for mixing sauces, syrups, jams, spreads, and concentrated purees, the TANDEM system guarantees a uniform and lump-free product.

The combined rotation of the shafts and the scraping action optimize the thermal transfer of the tank, reducing the heating or cooling time and improving energy efficiency.

Chemical industry

In reaction, dissolution, or controlled polymerization processes, the TANDEM agitator maintains a stable mixture without degrading the product.

It is especially useful in the preparation of adhesives, resins, paints, detergents, and technical suspensions, where robust agitation and precise control of the reactor temperature are required.

blender para químicos

Frequently Asked Questions

The TANDEM system combines macroscopic agitation, dispersion, and emulsification in a single unit, using counter-rotating shafts and high-shear heads. This guarantees uniform results in viscous products where conventional agitators cannot maintain homogeneity.

Depending on the configuration and power, they can work with fluids from 5,000 to 100,000 cP, including cosmetic creams, adhesives, resins, or concentrated food pastes.

Yes. TANDEMs incorporate double mechanical seals cooled by thermosiphon, which allows operating in vacuum or at pressures up to 4 bar, maintaining the total tightness of the reactor.

The modular design allows adapting the head and anchors to existing tanks, both vertical and horizontal, reducing adaptation costs and guaranteeing compatibility with CIP/SIP systems.

Maintenance is minimal: it is recommended to periodically check the mechanical seal and bearings. The scrapers and blades are removable and can be replaced without special tools.

It allows increasing the relative speed between phases, improving homogenization and reducing the mixing time by up to 40% compared to single-shaft systems.

Yes. Versions are offered in AISI 316L, 304L, 904L, or Hastelloy, depending on the nature of the product and its chemical or thermal aggressiveness.

In cosmetics, pharmacy, food, and fine chemicals, especially in processes where viscosity, precision, and hygiene are determining factors.

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