How to choose a dual planetary mixer？

The dual planetary mixer is mainly used for efficient mixing, dispersion, and defoaming of high viscosity and high-precision materials. It is widely used in industries such as new energy, electronics, chemical, food, and medicine, and is particularly suitable for production scenarios that require high uniformity and process stability.

The selection of dual planetary mixers should prioritize matching key parameters based on material characteristics, mixing objectives, and production scenarios to ensure that the equipment meets actual needs in terms of efficiency, compatibility, and service life.

1、 Clarify material characteristics and mixing objectives

The requirements for mixing strength, temperature control, and sealing vary greatly among different materials, which directly affects the selection direction:

High viscosity paste (such as lithium battery slurry, silicone gel): It needs to have strong power output and multi-stage dispersion ability. It is recommended to choose models with high-speed dispersion disks to ensure that clumps are dispersed and the mixing uniformity is improved. For example, when processing lithium battery slurry, staged pressurized stirring can achieve a solid-liquid mixing uniformity of 98.7%.

Thermally sensitive materials (such as food fillings and medicinal liquids) should be equipped with an intelligent temperature control system. The jacket temperature control module should maintain a constant temperature of 5-80 ℃ to prevent coking or deterioration. For example, constant temperature stirring at 45 ℃ can reduce the coking rate of Kashida sauce from 6.2% to 0.8%.

Volatile or toxic materials: High sealing design is required to prevent leakage. It is recommended to use multiple sealing structures (such as skeleton oil seal+labyrinth seal), and nitrogen can be filled to form a micro positive pressure zone to suppress dust rising.

2、 Matching core parameters with production requirements

Recommended parameter selection reference data

The volume of the mixing drum is selected according to the batch production, with a reserved margin of 10% -20%. Common specifications: 5L,10L,20L,50L,100L, 200L, 300L, 500L,600L,1000L,1100L,1500L

High viscosity materials with high revolution/rotation speed should be kneaded at low speed and dispersed at high speed. The revolution speed is 0-340 rpm, and the dispersion speed can reach 5800 rpm

Match motor power with material viscosity to avoid overload. The revolving motor power can reach over 30kW

The agitator type can be equipped with a variety of paddle types to adapt to different processes Fried Dough Twists paddle to improve the slurry dispersion uniformity by 40%

Suggestions for batch production of control systems: PLC automatic control supports program settings, data recording, and remote monitoring

3、 Structure and Material Selection

Mixing tank material: 304/316L stainless steel is recommended for the food and pharmaceutical industries, and fluorine lining or special coating can be selected according to corrosiveness in the chemical industry.

Scraping design: The PTFE scraper can achieve zero residue on the barrel wall, reducing single loss to 0.3kg/m ³, suitable for high-value materials.

Transmission mode: Gear transmission has high stability and is suitable for heavy-duty working conditions; Belt drive has low cost and easy maintenance.