KR-128 Modular Torque Rheometer for Polymer Formulation & Processing Research
RT-128 Plastic Rubber Torque Rheometer
Application:
● Polymer material formulation design
● Raw material performance and quality inspection
● PVC melting characteristics test
● Test for plasticizer absorption performance of PVC dry mix
● Thermal and shear stability testing of thermoplastic materials
● Cross-linking characteristics determination for XLPE cross-linked ethylene
● Studying flow and solidification behavior of cross-linking polymers
● Formulation design of inorganic powder sintering molding materials such as metal and ceramics
Product Details：
Product Introduction
The KR-128 modular torque rheometer is a full-process polymer rheology testing platform built to replicate industrial compounding, extrusion and vulcanization conditions within lab environments. It captures real-time torque, melt temperature, pressure and rotation speed data, generating intuitive torque-time and torque-temperature curves to quantify plasticization performance, shear stability, cross-linking reaction and filler dispersion of all types of polymer raw materials.
This all-in-one system adopts a split modular design, freely compatible with internal mixers, single-screw extruders and parallel twin-screw modules to realize multi-scenario rheology characterization. It fully complies with ASTM D4440, ASTM D2538, ISO 6721 and domestic plastic testing norms, widely deployed in polymer R&D labs, PVC compound factories, rubber vulcanization workshops, new energy material institutes and third-party material certification labs for formula screening, raw material incoming inspection and production process parameter optimization.
Core Technical Advantages
- High-Precision Servo Drive & Cantilever Torque Sensor
Equipped imported closed-loop servo drive system to deliver 2–200rpm stepless adjustable rotation speed with speed error controlled below 0.5%FS. Self-developed cantilever beam torque sensor features 0.05%FS ultra-high resolution, fast signal response and wide 0–400N.m measuring range (customizable), accurately capturing subtle melt resistance changes during material plasticization.
2.Multi-Zone Precise Temperature Control System
Three-section independent heating circuit paired with high-precision T-type thermocouples, temperature range covers ambient temperature up to 350℃ (500℃ high-temperature version optional) with ±0.5℃ constant temperature precision. Fast heating speed reaches 200℃ within 11 minutes, eliminating temperature drift interference during long continuous mixing tests.3.Interchangeable Multi-Volume Mixer & Diversified Rotor Selection
Supports MX30/MX60/MX200/MX300 four standard mixing chamber volumes. Five types of nitrided alloy rotors (Roller, Banbury, Cam, Sigma, Delta) are optional to match thermoplastics, rubber, ceramic powder and cross-linking materials respectively, with 3:2 fixed rotor speed ratio to simulate industrial high-shear kneading effectMade-in-Ch….4.Wireless Real-Time Data Transmission & Multi-Functional Analysis Software
Wireless communication between mainframe and industrial PC avoids electromagnetic signal interference from workshop equipment. Supporting three sets of dedicated analysis software: mixer kneading program, extrusion rheology program and melt viscosity calculation program, realizing multi-curve superposition, data smoothing, automatic peak marking and one-click test report export.5.Expandable Modular Functional Combination
The universal main drive unit can be rapidly matched with auxiliary modules including single-screw extruder, parallel twin-screw extruder, automatic weighing feeding device, three-roll calender and film blowing unit. One set of host equipment completes mixing, extrusion, film forming and tensile sample preparation experiments, greatly reducing lab equipment procurement costs.6.Integrated Mobile Cabinet With Full Safety Protection
The whole machine adopts wheeled mobile frame with adjustable support feet for flexible lab layout. Equipped emergency stop button, over-temperature power-off protection and closed high-temperature mixing chamber to prevent hot melt splashing, meeting laboratory safety operation standards for long-time unattended testing.
Complete Technical Parameter Specification
1. Main Drive Host
表格
| Parameter Item | KR-128 Standard Model | KR-128 High-Temp Custom Version |
|---|---|---|
| Total Rated Power | 4KW | 7KW |
| Temperature Working Range | RT ~ 350℃ | RT ~ 500℃ |
| Temperature Control Accuracy | ±0.5℃ | ±0.5℃ |
| Rotation Speed Range | 2 ~ 200rpm stepless regulation | 2 ~ 200rpm stepless regulation |
| Speed Control Precision | ≤0.5%FS | ≤0.5%FS |
| Torque Measuring Scope | 0 ~ 300N.m (0~400N.m optional) | 0 ~ 400N.m |
| Torque Resolution | 0.05%FS | 0.05%FS |
| Real-Time Monitoring Data | Rotation speed, torque, multi-point temp, melt pressure | Same as standard |
2. Internal Mixer Module
| Spec Item | MX30 | MX60 | MX200 | MX300 |
| —- | —- | —- | —- |
| Effective Chamber Volume | 30ml | 60ml | 200ml | 300ml |
| Optional Rotor Types | Roller / Banbury / Cam / Sigma / Delta | Full series universal | Full series universal | Full series universal |
| Rotor Surface Treatment | Nitriding wear-resistant alloy | Same full series | Same full series | Same full series |
| Heating Segments | 3 independent heating zones | Same full series | Same full series | Same full series |
| Supporting Power | 2.8KW | 4.8KW | 6.2KW | 7KW |
3. Matching Extruder Module Parameters
- Single Screw Extruder (KR-733): Screw diameter 20mm, L/D ratio 25:1, 5-section independent heating, max temp 350℃
- Parallel Twin Screw Extruder (KR-736): Screw diameter 21.7mm, L/D 40:1, building block screw structure, speed 5~200rpm
Mixer Of Torque Rheometer
|
Model
|
MX30/MX60/MX200/MX300
|
|
Product name
|
Mixer Of Torque Rheometer
|
|
Volume
|
30ml/60ml/200ml/300ml
|
|
Rotor Type
|
Roller/Banbery/Delta/Cam/Sigma
|
|
Rotor Treatment
|
Nitriding treatment
|
|
Max. Temperature
|
RT~350℃
|
|
Temperature Precision
|
±0.5℃
|
|
Heating rate
|
200℃/11min
|
|
Gear ratio
|
3:2
|
|
Temperature sensor
|
K thermocouple
|
|
Heat method
|
Electrical heating
|
|
Heating segment
|
3 segments
|
|
Power
|
2.8kw/4.8kw/6.2kw/7kw
|
Single Screw Extruder
|
Model
|
KR-733
|
|
Product name
|
Single Screw Extruder
|
|
L/D
|
25:1
|
|
Screw Dia.
|
20mm
|
|
Screw material
|
38GrMoAI
|
|
Max. Temp.
|
RT~350℃
|
|
Heating Segment
|
5 segments
|
Parallel Twin-screw Extruder
|
Model
|
KR-736
|
|
Product name
|
Parallel Twin-screw Extruder
|
|
L/D
|
40:1
|
|
Screw Dia.
|
21.7mm
|
|
Screw structure
|
Building block type
|
|
Speed
|
5~200rpm
|
|
Feeding method
|
Screw metering feeding
|
|
Screw material
|
40CrNiMoA
|
Product Details
Standard Test Operation Flow (Mixer Kneading Mode)
- Equipment Preheating & Parameter Setting
Install matched rotor and lock mixing chamber, set target temperature and rotation speed on PC software, start heating cycle until each zone reaches constant set temperature for 10 minutes stabilization.
- Sample Feeding & Sealing
Weigh standard volume polymer sample, pour into the feeding hopper, rotate hand wheel to press feeding piston to fully seal the mixing cavity and prevent material overflow during kneading.
- Automatic Kneading Rheology Test
Start the test program; counter-rotating rotors generate uniform shear force on molten material. The system continuously collects torque, temperature and time data to draw real-time rheological curves.
- Data Analysis & Curve Comparison
After preset mixing duration, stop the equipment and cool down the cavity. Software automatically identifies fusion peak, minimum torque and cross-linking characteristic points, supports overlapping multiple groups of experimental curves for formula performance comparison.
- Discharging & Chamber Cleaning
Open the mixing chamber after cooling to safe temperature, take out fully kneaded material and clean rotor and cavity inner wall with special cleaning tools to avoid cross-contamination of different formulations.
- Data Report Export
Save all test raw data and curves, generate standardized inspection reports containing fusion time, equilibrium torque and thermal stability indicators, export as editable PDF/Excel files for laboratory filing.
System Software
Wide Industrial Application Fields
PVC & Plastic Compound Industry
Test dry blend plasticizer absorption, melting performance and thermal shear aging resistance of UPVC/PP/PE raw materials; compare stabilizer, lubricant and filler addition ratio influence on processing performance.
Rubber & Elastomer R&D
Research vulcanization cross-linking characteristics of natural rubber and synthetic rubber; evaluate mixing uniformity of carbon black, silica and other reinforcing fillers.
Cross-Linked & Engineering Plastics
Detect cross-linking reaction curve of XLPE cable materials; test thermal decomposition and flow stability of high-temperature engineering plastics such as PA, PC and PPS.
New Energy & Inorganic Composite Materials
Formulation screening of conductive plastics, thermal conductive fillers, metal ceramic powder sintered materials; analyze dispersion effect of inorganic additives in polymer matrix.
Packaging & Extrusion Processing Enterprises
Predict process risks of blown film, pipe extrusion, granulation and injection molding; optimize screw speed, processing temperature and holding time based on rheological test data.
University & Third-Party Testing Institutes
Polymer material teaching experiments, new material formula development, product processing performance compliance testing for market access certification.
Optional Extended Auxiliary Modules
- Automatic Weighing Feeding Unit: Realize automatic material feeding and apparent viscosity-shear rate relational testing
- Die Diameter Tester: Automatically measure melt die swell value after extrusion
- Three-Roll Calendering Traction Machine: Produce uniform strip samples for tensile and thermal shrinkage testing
- Film Blowing & Optical Detection Module: Test transparency and impurity defects of extruded thin films
Standard Factory Delivery Kit
- KR-128 main torque rheometer drive host with mobile wheeled frame
- Selected volume internal mixer unit + matched alloy rotor set
- Complete temperature sensing and heating pipeline assembly
- Industrial control computer + multi-functional rheology analysis software U disk
- Emergency stop safety components and high-temperature cleaning tools
- Multilingual operation manual complying with ASTM & ISO standards
- Factory calibration inspection certificate and electrical wiring schematic
Global Distributor & After-Sales Support
We provide one-on-one remote test operation training and formula parameter debugging guidance, with long-term stable supply of replacement rotors, torque sensors and heating modules. Custom high-temperature versions and overseas 60Hz power conversion equipment are available for bulk orders. Exclusive regional agent policies include priority production scheduling, OEM private brand customization and full sets of high-definition product marketing pictures.
English Image Overlay Label Text
Main Banner Title: KR-128 Modular Torque Rheometer For Polymer Processing Research
Control & Software Tags: SPEED SET / TEMP CURVE / TORQUE RECORD / MULTI-CURVE OVERLAY / REPORT EXPORT
Feature Overlay Tags: 0.05% High Torque Precision / 5 Optional Rotors / Wireless Data Transmission / Mixer & Extruder Expandable / ±0.5℃ Precise Temp Control
Safety Operation Tip: Cool Mixing Chamber Completely Before Opening For Cleaning
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