Technical Specifications
| CR-30 | CR-60 | CR-200 | CR-300 |
| Volume | 30ml | 60ml | 200ml | 300ml |
Rotor type
| Roller，Banbury、Delta、Cam、Sigma
|
| Rotor ratio | 3:2
|
| Maximum torque | 300Nm
|
| Maximum temperature | 350°C, can be customized more than 500°C |
Heating method
| Three-zone electric heating
|
| Temperature control system | RKC temperature control system
|
Maximum speed
| 100Rpm | 200Rpm
|
| Cooling method | Compressed air cooling
|
Safeguards
| Mechanical + software double protection |
Mixing Rotor Series
The mixing rotor is the core working element of the ChangKai torque rheometer mixing unit. By changing the rotor geometry, a single main drive unit can cover thermoplastics, elastomers, thermosetting plastics, high-torque hard materials and low-shear powder systems.
| No. | Rotor | Material type | Typical materials |
|---|
| 01 | Roller | Thermoplastics | Polyolefins, PVC, linear polyester, polyamide, polycarbonate, polystyrene, polyacrylate |
| 02 | Banbury | Elastomers | Natural rubber, synthetic rubber, rubber compounds, TPE |
| 03 | Delta | Thermosetting plastics | Phenolic, urea-formaldehyde, unsaturated polyester, epoxy |
| 04 | Cam | High-torque hard materials | Ceramic raw materials, kaolin, colloidal clay, cement, clay, soil, sand |
| 05 | Sigma | Low torque / gentle mixing | Food applications, plastisol, PVC paste, pharmaceutical powders |
01 Roller · Thermoplastics
Medium shear and highly versatile — suited to viscosity testing and thermoplastic / thermoset mixing tests.
Materials: polyolefins (PE / PP), PVC, linear polyester, polyamide (PA), polycarbonate (PC), polystyrene (PS), polyacrylate, engineering plastics.
02 Banbury · Elastomers
High shear and strong dispersion, reproducing an industrial internal mixer — suited to high-viscosity elastomer compounding.
Materials: natural rubber (NR), synthetic rubber (SBR / EPDM / NBR), rubber compounds, thermoplastic elastomers (TPE).
03 Delta · Thermosetting plastics
Gentle shear to avoid over-shearing; suited to mixing and crosslinking of thermosets, used with a conical mixing chamber.
Materials: phenolic (PF), urea-formaldehyde (UF), unsaturated polyester (UP), epoxy (EP), thermoset moulding compounds.
04 Cam · High-torque hard materials
Medium shear with limited axial distribution; suited to viscous high-torque materials, ceramics and food systems.
Materials: ceramic raw materials, kaolin, colloidal clay, cement, clay, soil, sand, viscous high-torque food materials.
05 Sigma · Low torque / gentle mixing
Low shear and gentle mixing; suited to powder incorporation tests and torque-limited applications.
Materials: food materials, plastisol, PVC paste, pharmaceutical powder blending, low-shear powder compounding.
FAQ
What chamber volumes are available?
Four models correspond to four volumes: CR-30 is 30 mL, CR-60 is 60 mL, CR-200 is 200 mL and CR-300 is 300 mL.
Which rotors are standard, and which are optional?
Roller rotors are standard; Banbury, Delta, Cam and Sigma rotors are optional.
Which materials suit each rotor?
Roller for thermoplastics, Banbury for elastomers, Delta for thermosets, Cam for high-torque work and Sigma for low-torque work.
Can the mixer module be used on its own?
No — it must be combined with the main drive unit to form a complete mixing torque rheometer.
Which parameters can the mixing torque rheometer measure?
Rheological properties at different temperatures, shear rates and shear stresses, such as viscosity, shear stress and shear rate.
What are the maximum temperature and torque?
Maximum temperature 350 °C (customisable above 500 °C); maximum torque 300 N·m.
How are cooling and safety designed?
Compressed-air cooling, with mechanical and software dual protection. Heating is three-zone electric, with an RKC temperature control system.