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LBTZ-30 Rubber–Use Non-Rotating Rheometer

Name: LBTZ-30 Rubber–Use Non-Rotating Rheometer
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

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.

Category:

Rubber and Waterproofing Material Testing Equipment

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E-mail:

lbt@lbt.ltd

WhatsApp:

+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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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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It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.

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.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

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

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

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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.”

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

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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.”

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.”

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