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LBTZ-31 Unvulcanized Rubber Mooney Viscometer

Name: LBTZ-31 Unvulcanized Rubber Mooney Viscometer
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

A Mooney viscometer is an instrument in which, at a specified test temperature, the viscometer’s rotor rotates at a fixed speed, applying a defined shear stress to the sample. It measures the material’s resistance to the applied torque; the greater the resistance, the higher the Mooney viscosity and the lower the plasticity. Under conditions where the mold cavity and rotor geometry are fixed, the test temperature, rotor speed, and torque directly affect the accuracy of the Mooney viscosity measurement. Features and applications: microcomputer‑controlled, with digital display and automatic calibration; equipped with an imported intelligent digital temperature controller that offers simple setpoint adjustment, a wide temperature control range, and high reliability. All data can be automatically plotted, calculated, and printed.

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Rubber and Waterproofing Material Testing Equipment

Keywords:

LBTZ-31 Unvulcanized Rubber Mooney Viscometer

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Description

Product Introduction:

A Mooney viscometer is an instrument in which, at a specified test temperature, the viscometer’s rotor rotates at a fixed speed, applying a defined shear stress to the sample. The resistance of the rubber compound to this applied torque is measured; the greater the resistance, the higher the Mooney viscosity and the lower the plasticity. Under conditions where the mold cavity and rotor geometry are constant, the test temperature, rotor speed, and torque directly influence the accuracy of the Mooney viscosity measurement.

Features and Applications:

Microcomputer control, data display, and automatic calibration; equipped with an imported intelligent digital temperature controller for easy setpoint adjustment, a wide temperature‑control range, and high reliability. All data can be automatically plotted, calculated, and printed.

Reference standard:

Complies with GB/T 1232 « Determination of Mooney Viscosity of Unvulcanized Rubber 》, GB/T 1233 "Initial Curing Characteristics of Rubber Compounds" Determination of Mooney viscosity meter the Law and standards such as ISO 289 and ISO 667.

Main technical specifications of the rubber Mooney viscometer:

1. High-precision sensor: range 0–200 Mooney units. Mooney‑unit accuracy within ±0.5 units. Resolution: 0.1 Mooney unit. Control system: computer‑based control with an interface board for data acquisition, storage, processing, and printing of test results and curve analysis. Rotational system: gear‑reduction speed‑control motor coupled with a gear reducer and reduction gears. Rotor speed: 2 ± 0.02 r/min.

2. Temperature Control System: Equipped with an intelligent digital temperature controller that automatically adjusts PID control parameters in real time. Temperature control range: 0–200°C; temperature measurement accuracy: ≤±0.3°C; temperature resolution: 0.1°C.

3. Data transmission method: RS232 transmission

4. Display Mode: Viscosity‑106+WIN‑XP test software displays results on the computer screen; combined with user-friendly software and advanced hardware, the entire measurement process is made exceptionally convenient, fast, accurate, and enjoyable.

5. Rotor: Made of Cr6wv material; the large rotor has a diameter of Φ38.10 ±0.03 with 24 flat teeth, while the small rotor has a diameter of Φ30.48 ±0.03 with 19 flat teeth.

6. Measurement and Control Modes: User-friendly operation options include point-and-click with the mouse or touch‑activated buttons on the host panel.

Technical specifications:

Parameter Category	Parameter content
Temperature measurement range	0–200℃
Temperature measurement accuracy	≤±0.3℃
Control accuracy	≤±0.3℃
Temperature resolution	0.1℃
Torque range	0–200 Mooney viscosity
Calibration accuracy	100 ± 0.5 Mooney viscosity
Rotor speed	2 ± 0.02 rpm
Measurement time	0–200 points, resolution of 1 second
Ambient temperature	0–35°C
Relative humidity	<80
Test pressure	11.5 kN ±0.5 kN
Gas distribution	0.45‑0.6 MPa
Power supply	AC 220V 1kVA
Machine dimensions	Approx. 660×570×1300 mm
Machine weight	Approximately 260 kg

Introduction to the Software Functions of the Rubber Mooney Viscometer:

1. Test Standardization: Complies with standards including GB/T 1232 “Determination of Mooney Viscosity of Unvulcanized Rubber,” GB/T 1233 “Determination of Initial Curing Characteristics of Rubber Compounds by the Mooney Viscometer Method,” as well as ISO 289 and ISO 667, among others.

2. Specimen Information: The designated compound number, such as “Tire No. 5,” “RBS6,” and so on. If the user wishes to add a title or description to the printed drawing, they may enter any text of their choice.

3. Special Note on High‑Quality Features: A key advantage of the user‑friendly design is the ability to adjust the measurement time during testing. For example, if the rubber compound is estimated to require a 20‑minute measurement, but the actual test reveals that t18 is already measurable at 11 minutes—indeed, t18 can be detected as early as the 9th or 10th minute—then, for a small rotor, the measurement is complete; for a large rotor, too, the measurement is finished. At this point, there is no need to continue further. By pressing “Save,” the experiment immediately stops at the 9th or 10th minute, generating a complete Mooney curve, calculating all relevant data, and storing the data curve in the database. If, after 20 minutes, neither t18 nor t35 has been measured, the system will automatically advance the measurement by increments of several minutes (manual adjustment of the measurement time is also possible) until either t18 or t35 is detected. If, after 200 minutes, neither t18 nor t35 has been measured, the measurement will terminate automatically. This feature undoubtedly greatly simplifies operation for users, saving valuable time and reducing rubber material consumption.

4. Auto Scale: After measurement is complete, the software automatically adjusts the Y‑axis scale—ranging from 0 to 100 mV or 0 to 200 mV—based on the magnitude of the measured values, resulting in a more visually appealing display. When comparing multiple curves, even for entirely different rubber compounds with distinct curve shapes and varying measurement durations, the data can still be readily compared.

5. Databases: The software comes pre-configured with 100 numbered databases. Each database can store an unlimited number of measurement data sets. To facilitate future retrieval of tens of thousands of data sets spanning months, years, or even decades, users can organize data from different time periods into separate databases—this is precisely the purpose of assigning distinct database addresses.

6. Upon completion of the test, results are automatically saved; the system also automatically calculates the maximum Mooney viscosity, minimum Mooney viscosity, tH, tL, Mend, Tend, Δ15, Δ30, M1+4, M1+5, M1+6, M1+7, M1+8, M1+F, and other parameters.

Packing List for the Rubber Mooney Viscometer:

A. One copy of the operating manual.

B. One copy of the dedicated test software for the rubber Mooney viscometer.

C. One set of branded computers and one color printer.

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

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“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

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From Thomas Bennett, Quality Director, UK plastic pipe factory

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