What are the key selection points for experimental planetary mixers?
1、 Core competency: Matching materials with experimental requirements
Mixing capacity adaptation
Speed/power: Choose high speed (0-1500r/min) for low viscosity materials (such as solutions); For high viscosity materials (such as paste,>100000 cP), a low-speed high torque motor should be selected and equipped with a scraping blade.
Processing capacity: Select 0.1-50L tanks according to the volume of a single experiment to avoid overfilling or overfilling (it is recommended to charge 1/3-2/3 of the tank volume).
Mixing head: For low viscosity, use paddle/dispersing discs; for high viscosity, use anchor/screw belt discs. For dispersing particles, choose dispersing discs with shear function.
Material Characteristics Adaptation
Material: 316L stainless steel is selected for chemical/corrosive materials, and high borosilicate glass jars should be selected for observation materials.
Environment: For easily oxidizable materials that require defoaming, choose models with vacuum systems (vacuum degree≥ -0.09MPa), and for thermosensitive materials, choose models with cooling functions.
2. Key Performance: Ensuring Experimental Accuracy and Stability
Conventional requirements for temperature control accuracy± 1 ℃ precision jacket type temperature control (electric heating/water bath), high-temperature experiments (>100 ℃) choose thermal oil heating, and exothermic reactions require cooling coils.
Mechanical seals (superior to packing seals) are preferred for sealing and pollution prevention to prevent material leakage or air ingress; Parts that come into contact with materials need to be polished (Ra≤ 0.8μ m) to reduce residue.
III. Safety and Operation: Adapt to Laboratory Scenarios
Safety requires a fully enclosed protective cover and emergency brake lock to prevent injury from high-speed components; Corrosion resistant materials need to confirm the acid and alkali resistance level of the contact parts (such as 316L>304).
Convenient operation with touch screen/PLC control (supporting parameter preset and data recording), detachable mixing head/tank body (convenient for cleaning), and volume suitable for laboratory space (usually occupying less than 1 square meter).