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2026

An Analysis of the Applications of Tubular Emulsifying Pumps in the Fine Chemicals and Pharmaceutical Industries

2026-03-27

  In the mixing and emulsification stages of the fine chemicals, pharmaceutical and food industries, traditional batch-type agitation often faces efficiency bottlenecks and issues with batch-to-batch variability. The introduction of the ZJR tubular emulsification pump (in-line high-shear emulsifier) has simplified the complex process of ‘mixing, dispersion and emulsification’ into a highly efficient, continuous in-line operation. It is not merely a simple conveyance device, but rather a core piece of equipment that achieves microscopic homogenisation of materials through precise mechanical forces.
 


 

  I. Core Principle: The ‘Mechanical Force Field’ Effect Between the Stator and Rotor
  The core working components of the ZJR tubular emulsifying pump consist of a stator and a rotor. Its operating principle does not rely solely on agitation, but utilises the *centrifugal force and hydrodynamic effects* generated when the rotor rotates at high speed (typically up to 2800 r/min).
  Once the material is drawn into the working chamber, it undergoes multiple physical processes within the extremely narrow gap between the stator and rotor:
  1. Intense shearing: Shear forces generated by high-speed relative motion instantly tear apart droplets or particles;
  2. Centrifugal compression and impact: The material is flung at high speed against the inner wall of the stator, where it is broken down through impact;
  3. Turbulent homogenisation: Vigorous turbulence is generated within the chamber, achieving mixing at the microscopic scale.
  This process transforms originally immiscible solid, liquid and gas multiphase media into uniform, fine-textured and stable emulsions or suspensions within an extremely short time.
  II. Performance Advantages: Dual Enhancement of Efficiency and Stability
  Compared with traditional batch-type emulsification equipment, the in-line design offers significant process advantages:
  1. Continuous production, doubling efficiency
  The equipment is installed directly in series within the pipeline, with material entering at one end and exiting at the other, supporting 24-hour continuous operation. This not only substantially improves processing efficiency (the ZJR-280 model can handle up to 130 t/h), but also eliminates quality fluctuations between batches, ensuring product consistency.
2. Multifunctional integration: one machine, multiple uses
The ZJR pump integrates mixing, dispersion, crushing, dissolution, homogenisation and emulsification functions into a single unit. For low-viscosity materials, it can even replace some of the functions of a transfer pump, simplifying the process flow and reducing capital expenditure on equipment.
  3. Precise particle size control and high stability
  By adjusting the rotor-stator configuration and rotational speed, the particle size distribution of the finished product can be precisely controlled to achieve a narrower particle size range, thereby improving the physical stability of emulsions or suspensions and preventing separation or sedimentation.
  III. Technical Specifications and Selection Criteria
  The ZJR series offers a complete range from laboratory-scale to large-scale industrial production, with the following key technical features:
  1. Motor power: Ranges from 1.5 kW to 132 kW to accommodate different production capacity requirements;
  2. Processing capacity range: 0–1.5 t/h to 0–130 t/h (depending on the model);
  3. Rotational speed: Typically operates at a high speed of 2800 r/min to ensure high shear force;
  4. Suitable materials: Medium- to low-viscosity liquids; solid–liquid and liquid–liquid mixing systems;
  5. Material: Typically made of stainless steel, which is corrosion-resistant and complies with food and pharmaceutical hygiene requirements.
  Selection recommendations:
  1. Pilot and intermediate-scale trials: Low-power models such as the ZJR-60 or ZJR-100 may be selected to facilitate process optimisation;
  2. Large-scale production: For continuous, high-throughput processing, the ZJR-200 and higher models are the preferred choice;
  3. Special operating conditions: For materials with high viscosity or containing a large amount of solid particles, it is necessary to assess whether the equipment should be used in conjunction with pre-mixing equipment.
  IV. Typical Application Scenarios
  The application of this equipment covers virtually all industrial sectors requiring precision mixing:
  1. Personal care and cosmetics: Homogenisation and emulsification of shampoos, shower gels, face creams and lotions, ensuring a fine texture and smooth feel on the skin.
  2. Pharmaceuticals and Biotechnology: Dispersion and homogenisation of ointments, emulsions, suspensions and protein preparations, meeting GMP requirements for process stability.
3. Food and Beverages: Emulsification and stabilisation of fruit juices, sauces, chocolate and dairy drinks, improving texture and shelf life.
4. Chemicals and New Materials: Ultra-fine dispersion of coatings, inks, pigments and nanomaterials, enhancing product lustre and performance.
Conclusion
  Through its unique stator-rotor mechanical structure, the ZJR tubular emulsifying pump applies high shear forces to flowing materials, enabling a transition from batch production to highly efficient continuous processing. In modern industry, where product uniformity and production efficiency are paramount, it has become a crucial piece of equipment in precision emulsification and dispersion processes.