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LBTZ-30 Rubber–Use Non-Rotating Rheometer

The rotorless vulcameter is the most widely used instrument in the rubber processing industry for quality control, rapid testing, and fundamental rubber research. It provides precise data to optimize rubber formulation, accurately measuring parameters such as scorch time, optimum cure time, cure index, and maximum and minimum torque. It is extensively applied across various sectors of the rubber products industry.

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Rubber and Waterproofing Material Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBTZ-30 Rubber–Use Non-Rotating Rheometer

Description

Product Introduction:

The rotorless vulcameter is the most widely used instrument in the rubber processing industry for quality control, rapid testing, and fundamental rubber research. It provides precise data to optimize rubber formulation, accurately measuring parameters such as scorch time, optimum cure time, cure rate index, and maximum and minimum torque. It is extensively applied across various sectors of the rubber products industry.

Reference standard:

Rotorless Vulcanization Tester T10, T30, T50, T60, and T90 data that comply with the requirements of GB/T 16584 “Rubber—Determination of Vulcanization Characteristics Using a Non-Rotating Rheometer,” ISO 6502, and the Italian standard.

Product Features:

1. The rotorless vulcameter is equipped with the latest domestic software, featuring rapid heating (within 3 minutes) and high temperature‑control accuracy.

2. The rotorless vulcameter employs an alpha-type closed‑cavity mold structure.

3. The rotorless rheometer employs alpha‑type top‑mounted force sensor technology (sensor accuracy up to 0.001 N·m).

4. The rotorless rheometer employs an alpha‑type sealed mold cavity design, using imported sealing rings to hermetically seal the rotating and stationary cavities; moreover, the structure of this sealed mold cavity differs fundamentally from that of a conventional open‑type mold cavity.

5. The mold cavity is made from high-quality materials, ensuring rapid heat transfer and excellent resistance to deformation.

Working principle:

The rubber specimen is placed in an almost completely sealed mold cavity and maintained at the test temperature. The mold cavity consists of upper and lower halves, with the lower half undergoing a small linear reciprocating motion (oscillatory swing). This oscillation induces shear strain in the specimen, and the reaction torque (force) exerted by the specimen on the mold cavity is measured. The magnitude of this torque (force) depends on the shear modulus of the rubber compound. As the vulcanization test progresses, the shear modulus of the specimen increases; the computer continuously displays and records the torque (force). When the torque (force) reaches a steady value or a maximum, or even returns to its initial state, a torque–time curve—known as the vulcanization curve—is obtained. The shape of this curve is influenced by the test temperature and the characteristics of the rubber compound.

Technical specifications:

Parameter Category	Parameter content
Temperature control range	Room temperature–200°C
Temperature fluctuation range	±0.15℃
Torque resolution	1/500,000
Torque accuracy	0.3%
Torque unit	N·m, N·cm, N·in, kN·m, kN·cm, kN·in, kg·m, kg·cm, kg·in, lbf·m, lbf·cm, lbf·in, g·m, g·cm, g·in
Temperature display resolution	0.01℃
Mold-closing temperature recovery time	< 1.5 min
Temperature unit	C (Celsius), F (Fahrenheit), K (Kelvin)
Sampling rate	200 times/s
Supported languages	English, Simplified Chinese, Traditional Chinese.
Usage Standards	GB/T 16584, ASTM D5289, ISO 6502
Calculation parameters	ts1, ts2, t10, t30, t50, t70, t90, Vc1, Vc2
Software interface	USB2.0
Printed content	Date, time, temperature, vulcanization curve, temperature curve, ML, MH, ts1, ts2, t10, t50, t90, Vc1, Vc2
Power supply	220VAC±10%, 50±3Hz;
Size	L57cm x W70cmx H163cm
Weight	Gross weight: 300 kg, Net weight: 250 kg

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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

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

2026.06.05

★★★★★

“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.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“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.”

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LBTZ-30 Rubber–Use Non-Rotating Rheometer

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