Laboratory RM-200A Mixer Unit of Torque Rheometer

Product Description

The Principle of Mixer
The measuring principle is based on making visible the resistance the sample material opposes to
the rotating rotors. High-speed hot shearing provided by a pair of counter-rotating rotor in the mixer chamber made the material plasticizing from solid to melt.The corresponding torque moves a dynamo-meter out of its zero position .
In compliance with the existing standards and test specifications, a typical ' Rheogram ' (torque and temperature vs. time) is recorded for each sample material. We can analyse the structural changes of the material by the rheogram ,which shows the relationship between torque (viscosity) and temperature / time . The measured data can be displayed and stored numerically as a txt or excel file to further analysis during the measurement .
Technical parameters :

	Mixer-20		Mixer-60		Mixer-200		Mixer-300
Chamber volume	20ml		60ml		200ml		300ml
Mixer Material	630
Types of rotor	Roller,Banbury,Cam,Delta,Sigma (Roller standard ,others optional )
Rotor processing	After high precision polishing, the surface chromium plating
Speed ratio of rotors	3:2
Temp control system	RKC from Japan
Temperature sensor	J type thermocouple
Heating	Electrical Heating/3 zones, PID
Max. Temperature	350ºC
Loading	Manually+ Pneumatic
Max. rotor speed	150 or 200 or 240 r/min
Max. torque	80Nm	150Nm		250 Nm		250 Nm
Total power	1500 W	1700W		3600W		4800W
Weight	280 kg
Dimension(L×W×H)	650×600×1800 mm

Types of rotors Rotor is the core component of Mixer System. Different structural type of rotors are suitable for different mixing process and directly affect the products quality ,efficiency and energy consumption. Now, we have developed five kinds of rotors for the plastic and rubber materials ,as illustrated below. The rotors are made of special steel ,counter-rotation towards each other at the speed ratio of 3: 2 provide for excellent compounding and high shear mixing characteristics .

Photo	Name	Function
	Roller	It is usually used for testing thermoplastic materials and compounding with additives.
	Banbury	It is usually used for testing natural and synthetic elastomers with regard to flow and cure behavior, compounding with additives .
	Cam	It is usually used for testing thermo-plastic polymer, ceramic composites, food and other high-torque materials.
	Delta	It is usually used for testing cross-linking thermo-set polymer .
	Sigma	It is usually used for testing food, medicine, and plastisol materials, which have low-torque.

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