Lab two-roll mixing mills are essential machines used to masticate,disperse and mix ,including rubber, chemical ,plastic, and elastomer material , color masterbatch ,PVC ,polymer industries . It is an indispensable machine for formula development ,color matching ,small batch testing,and quality control in the plastic and rubber industries .
This lab two roll mill adopt special thermal oil to heat with accurate surface temperature on the two parallel rotating cylinders which facilitate mixing, processing the compound materials through a combination of compression and rotation.
When you choose a lab two-roll mill equipment, you may consider its heating ways ,there are mainly two type of heating system — electric heating or oil heating.
So, what’s the difference between these two type heating system ?
1. Heating Method
Electric Heating Two-Roll Mill
The electric heating two roll mill equipment adopt electric heaters (usually cartridge or induction type) embedded inside the cylinder rollers to directly heat the surface of two rolls. The temperature of rollers is regulated via digital controllers.
Oil Heating Two-Roll Mill
While the oil heating two roll mill uses thermal oil heated by an external oil heater. The hot oil circulates inside the rollers to evenly distribute heat.
2. Temperature Control & Uniformity
* Electric Heating:
Much faster to heats up the rollers.
Temperature control is relatively accurate but may have slight variation across the roll surface. Thus electric heating two roll mill are very ideal for applications where quick heating and moderate uniformity are acceptable. But it need to comsume lots of electric enery.
* Oil Heating:
While oil heating offers superior heat distribution and stability for the rolls .But it can maintains uniform temperature across the entire roll surface, especially beneficial for heat-sensitive materials.
Therefore ,oil heating two roll mills heat to the rolls slightly slower, but more consistent ,what is more ,it doesn’t need to comsume so much electric cost.
3. Maintenance & Operation
* Electric Heating:
The electric heating two roll mill is simple to design, much easier to maintenance. It doesn’t need for oil pumps, tanks, or plumbing. Thus it
lower initial cost.
* Oil Heating:
On the other hand ,the oil heating two roll mill is more complex on the design ,as its external heating unit and oil circulation system is complex. Furthermore , it is requires regular oil checks and occasional cleaning or replacement.
Thus ,the initial investment on oil heating two roll mill is higher and more expensive to maintenance.
4. Wide Application
The electric heating two roll mills are widely suitable for many area ,including:
* General lab use for university & institution.
* Rubber ,Silicone & plastic formulation trials
* Users needing a quick setup and lower cost
While oil heating two roll mills are ideal for :
* High-temperature processing
* Heat-sensitive materials
* Users needing precise and stable thermal control
So in conclusion ,whether to choose electric heating and oil heating two roll mill equipment depends on your processing needs, budget, and the materials you need to process. If you need simple to operate maintance and speed, electric heating is often enough. While if your process demands temperature stability and consistency, oil heating two roll mill will give you better results.
Looking for quality laboratory two roll mill equipment for your universtity ,institution or factories ? Take your phone and call us today ,talk with our expert .