The laboratory vacuum emulsifying mixer is designed for cosmetic cream and lotion formulation development, small-batch testing, and emulsification process trials. It combines mixing, high-shear homogenization, heating and vacuum processing in a compact laboratory-scale system, allowing manufacturers to evaluate formulas before moving to larger production equipment.
For products such as creams, lotions and other emulsified formulations, the laboratory stage needs to reproduce the main processing conditions used in production. The laboratory vacuum emulsifying mixer provides a controlled vessel for preparing, mixing, emulsifying and testing small batches while giving manufacturers a practical basis for further process development.
What Is a Laboratory Vacuum Emulsifying Mixer?
A laboratory vacuum emulsifying mixer is a small-scale processing machine used to prepare emulsified products under controlled mixing and vacuum conditions.
The system combines a main emulsifying vessel with an agitator and high-shear homogenizer. Depending on the configuration, separate oil and water phase tanks can be used to prepare the two phases before they are introduced into the main vessel.
During processing, the agitator keeps the material moving through the vessel while the high-shear homogenizer provides the intensive mixing required for emulsification. Vacuum processing removes air from the vessel during mixing and helps reduce air entrainment in the finished batch.
This configuration makes the machine suitable for laboratory trials where manufacturers need to evaluate a formulation, processing sequence and emulsification result on a small scale.
What Can the Laboratory Vacuum Emulsifying Mixer Be Used For?
The machine is mainly used for small-batch development and testing of emulsified and viscous products.
Common applications include:
Face creams
Body creams
Lotions
Moisturizing creams
Cosmetic emulsions
Ointment-type products
Other oil-and-water based formulations
The actual application depends on the product formulation, viscosity, processing temperature and required emulsification process.
For manufacturers developing a new cosmetic product, the laboratory machine can be used to test different raw material combinations, processing temperatures, mixing conditions and homogenization parameters before determining the requirements for a larger production machine.
How Does a Laboratory Vacuum Emulsifying Mixer Work?
The working process generally consists of phase preparation, vacuum feeding, mixing, homogenization, heating or cooling, and final product discharge.
Oil and Water Phase Preparation
When the formula requires separate phase preparation, the oil and water phases can be prepared in their respective tanks.
Heating and mixing can be carried out according to the requirements of the formula. Once the phases reach the required processing condition, they can be transferred to the main emulsifying vessel.
Scraping Anchor Agitation
A wall-scraping anchor agitator continuously moves the material inside the main vessel.
The scraper follows the vessel wall while the central mixing action circulates the product through the working area. This helps maintain more uniform material movement, particularly when processing products with higher viscosity.
High Shear Homogenization
The high shear homogenizer provides intensive mixing in the main vessel.
During emulsification, the oil and water phases are subjected to strong shear forces so that one phase can be dispersed into the other. The homogenizer works together with the main agitator to develop the required emulsification effect.
Vacuum Processing
Vacuum processing is applied after mixing and emulsification to remove air from the product.
After high-shear processing introduces or disperses air within the batch, the vacuum system helps remove this air before the product is discharged.
Heating and Cooling
The main vessel can be configured with temperature control for processes that require heating or cooling.
Heating can be used during phase preparation or emulsification when the formula requires elevated temperatures. Cooling can then be used to bring the product down to the required processing temperature before final additions or discharge.
Main Components of the Laboratory Vacuum Emulsifying Mixer
Main Emulsifying Vessel
The main vessel is the central processing chamber of the machine. Mixing, homogenization, temperature control and vacuum processing take place around this vessel.
The vessel configuration can be selected according to the required laboratory batch size and processing method.
Wall-Scraping Anchor Agitator
The wall-scraping anchor agitator provides continuous low-speed movement of the material inside the main vessel.
It is particularly useful for creams and other viscous products where material movement near the vessel wall needs to be maintained during heating and mixing.
High Shear Homogenizer
The high shear homogenizer is the main component responsible for intensive emulsification.
The laboratory model uses a high speed homogenizing system with a maximum speed of 3000 rpm, allowing manufacturers to test emulsification conditions on a small batch scale.
Oil Phase Tank
The oil phase tank is used to prepare oil-soluble ingredients before they enter the main emulsifying vessel.
Its configuration and capacity can be selected according to the laboratory process and formula requirements.
Water Phase Tank
The water phase tank is used to prepare the aqueous phase of the formulation.
The water phase can be heated and mixed before being transferred to the main vessel for emulsification.
Vacuum System
The vacuum system supports vacuum feeding in the main vessel.
It is connected to the sealed emulsifying vessel and allows air to be removed after the mixing process.
Heating and Cooling System
The jacket around the main vessel provides temperature control during processing.
The heating or cooling configuration can be selected according to the required process temperature and laboratory operating conditions.
Control System
The control system is used to operate the agitator, homogenizer, heating, vacuum and other configured functions.
The control configuration can be adjusted according to the machine model and laboratory process requirements.
Why Use a Laboratory Vacuum Emulsifying Mixer for Formula Development?
Laboratory testing is an important stage between formula development and commercial production. A formulation needs to be processed under conditions that can provide useful information for later production planning.
A laboratory vacuum emulsifying mixer allows manufacturers to evaluate the interaction between mixing, homogenization, temperature and vacuum processing on a small batch. The results can then be used to determine the processing conditions and equipment configuration required for larger batches.
This is especially useful when developing creams and other emulsified products because the final product depends on how the different phases are prepared, combined and processed.
Custom Configuration for Different Laboratory Processes
Laboratory processing requirements vary according to the product and development stage. Some applications require separate oil and water phase tanks, while others can use a simpler main-vessel configuration.
The machine can therefore be configured according to the required batch capacity, product characteristics and processing procedure.
Laboratory Vacuum Emulsifying Mixer Technical Parameters
Item |
Specification |
Equipment Type |
Laboratory Vacuum Emulsifying Mixer |
Capacity |
15 L / 20 L / 25 L / 30 L |
Application |
Cosmetic formulation development and small-batch testing |
Main Vessel |
Stainless Steel |
Agitator Type |
Wall-Scraping Anchor Agitator |
Mixing Speed |
0 - 63 rpm |
Homogenizer Speed |
0 - 3000 rpm |
Recommended Products