MDR 3000 Moving Die Rheometer
The toughest and most customizable moving die rheometer (MDR) for ultimate accuracy and repeatability of rubber cure rate analysis.
Advanced Features & Applications
- Rugged 3000 series machine frame for the most stable readings in laboratories or the harshest production environments
- Fanless and sealed housing, preventing debris from entering critical systems
- Patented MonTech wearless direct torque drive motor
- Software programmable strain modification (0.01° to 5.0°)
- Internal diagnostic and condition monitoring routines
- Optional cooling systems
- Includes MonControl LIMS instrument management software
- Designed for compatibility to any host-system for quick implementation into the laboratory or production floor
Advanced Modules
- Linear Automation
- Tray Automation
- Die Cavity Pressure Measurement System
- Die Cavity Pressure Control System
- Pneumatic Cooling System
Linear Automation
Easily improve productivity.
Linear automation systems are ideal for online testing, utilizing a fast and reliable direct conveyor feeder with the lower film as a transportation carrier.
5 or 10 Samples.
Ideal for online automated testing, this system features automated sample loading and unloading with a linear queue of either 5 or 10 test samples at a time.
Linear automation systems are always the preferred choice for very sticky materials such as silicones or glue that sample loading arm systems might not be able to handle.
Tray Automation
Maximum Efficiency
Tray automation systems allow users to queue larger amounts of samples and leave the testing system running totally unattended over long periods. With MonTech's patented direct sample hadling system, sample placement accuracy and test result repeatability is significantly increased. Samples are handled and monitored by a high-volume vacuum system, ensuring perfect sample pickup, transporation and drop-off - even for less than ideal test samples.
24, 48, or 100 Samples Tray
This system features automated sample loading and unloading with a direct tray-to-chamber handling system.
Die Cavity Pressure Measurement System
The system includes a combined force / torque transducer and a 2-channel amplifier system for real-time simultaneous measurements of torque and force. This system measures the normal force to calculate pressure within the rheometer's die cavity. The force transducer and amplifier are balanced automatically before each test. Measuring the pressure and torque simultaneously is an easy way to quantify the expansion/contraction of the compound before, during, and after vulcanization.
Die Cavity Pressure Control System
With this option, cavity pressure can also be controlled either to a programmed or an on-line calculated pressure level. The closing force and die gap are designed as a variable, independent axis so that the cavity pressure can be controlled. This system is especially suitable for test sequences that include curing and a cool-down of the sample for a dynamical mechanical analysis. This system can be utilized to compensate for material shrinkage to avoid any slippage in the test chamber. This technology is patented worldwide by MonTech.
Pneumatic Cooling System
This pneumatic air cooling system cools both dies separately using independent PID-controllers, rapidly cooling the instrument from higher to lower testing temperatures. When using non-Isothermal and RPA operation modes this system enables cooling at any point during the test.
- Allows test sequences to follow precise cooling ramps and steps
- Conducts friction heat away from the sample when testing at high shear rates
- Reduces non-productive time of the instrument and operator by shortening stabilization time
- Air lines have quick connects at each platen, and exhaust through the platen assemblies
- Air is supplied by an independent regulator on the back of the machine
Technical Specifications
Standards | ISO 6502 |
Die Configuration | Biconical, closed die system, sealed |
Die Gap | 0.45 mm nominal, variable die gap and closing force optional |
Sample Volume | approx. 4.5 cm3 |
Drive System | Direct, wearless servo drive system |
Closing System | Soft closing to prevent foil rips and damage of test sample |
Oscillation Frequency | 1.667 Hz (100 cpm) |
Oscillation Strain | +/- 0.01° to 5° (+/-0.014% to 70%) |
Torque Range | 0.01 to 250 dNm |
Normal Force / Pressure (opt.) | 0 to 10.000 kPa (1.450 lbin), Auto tare |
Temperature Control System | Ambient to 232°C, precision +/-0.03°C |
Temperature Check System | Recordings of the temperature gradient on the screen, microprocessor monitored |
Measured Data | Torque (dNm, lbf.in, kgf.cm), Temperature (°C, °F), Pressure (bar, kg per cm²), Time (min - min / min - sec / sec), Shear rate (1/s, rad/s), Cure rate (1/min, 1/sec) |
Calculated Data | S΄, S˝, S*, tan δ, phase angle, cure rate, more... |
Subroutines | Isothermal, non-isothermal, timed, temperature sweep, strain sweep, frequency sweep, shear rate sweep, multi sweep, relaxation, retardation, hysteresis, tension tests, LAOS, more... |
Data Interface | Ethernet (10/100 MBit), USB (int.), CF card (int.), RS232 (opt.) |
Data Points | Over 3500 data points available for each static subtest; Including S‘ Min, S‘ Max, TS 1, TS 2, TC 10, TC 30, TC 50, TC 90; Integrated, automatic reporting features for dynamic tests |
Pneumatics | min. 4.5 Bar / 60 psi |
Electrical | 200-240 V, 6 Amps, 47-63 Hz, Single phase |
Dimensions (H x W x D) | 59.84 in x 26.77 in x 23.62 in (152 cm x 68 cm x 60 cm) |
Instrument Options | - "M" version with mechanical drive system |
View Applications
- Isothermal Cure
Isothermal cure experiments are the most common quality control test in rubber and elastomer processing. With over 3500 data points available on MonControl, all characteristics including minimum / maximum elastic torque, scorch times, cure times and reaction rates are precisely calculated.
Pass / fail statuses and tolerance gates can be easily set and evaluated with each test.
- Cure with Simultaneous Sponging / Foaming / Blowing Reaction
Taking place during the curing process, foaming reactions produce cellular membrane-like structures within mixes and are vital part of compound development. The cellular matrix created during the foaming reaction reduces density, increases thermal and acoustic insulation, and affects the stiffness of the mix.
MonTech rheometers are optionally equipped with a precision normal force transducer in the die cavity. This advanced transducer reveals interrelations between the simultaneous cure and foaming reaction.
- Non-Isothermal Cure
MonTech MDRs and RPAs can be programmed to follow any non-isothermal temperature profile to simulate mixing, milling, extrusion, compression molding, injection molding and storage conditions.
Non-isothermal test sequences are executed in a single test and can be included with other dynamic tests for the most accurate data discerning material behavior.
- Advanced Cure Kinetics Modeling
Test data from similar static or dynamic test sequences executed at different temperatures are evaluated and modeled for an advanced cure kinetics analysis.
Information acquired includes: Reaction Rate, Order of Reaction (n), Rate Constant (k), Activation Energy (E) and Incubation Time (ti).
