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NDJ-1C Digital Display Brinell Rotational Viscometer

The NDJ-1C digital-display Brabender rotational viscometer/high‑temperature viscometer employs the latest microcomputer‑driven technology, an imported stepper motor, and an LCD with backlight. It features stable rotational speed, excellent accuracy, programmable operation, user‑friendly controls, and fault‑alert functionality. The display directly shows viscosity, rotational speed, percentage torque, rotor number, the temperature of the test fluid, and the measurement time.

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Asphalt testing instruments

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lbt@lbt.ltd

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+86-15102211717

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NDJ-1C Digital Display Brinell Rotational Viscometer

Description

Product Introduction

The NDJ-1C digital-display Brabender rotational viscometer/high‑temperature viscometer employs the latest microcomputer‑driven technology, an imported stepper motor, and a backlit LCD display. It features stable rotational speed, excellent accuracy, programmable operation, user‑friendly controls, and fault‑alert functionality. The screen directly displays viscosity, rotational speed, percentage torque, rotor number, the temperature of the test fluid, and the measurement time.

Measurement information. The instrument’s full-scale range and linearity across all ranges are calibrated via the PC interface using standard samples of varying viscosities, ensuring exceptionally high accuracy and repeatability. The NDJ‑1C digital display Brookfield rotational viscometer/high‑temperature viscometer can determine the dynamic viscosity of high‑temperature molten materials such as hot‑melt adhesives, asphalt, and paraffin wax. With its advantages of accurate, rapid, intuitive, and user‑friendly operation, this instrument has been recommended in adhesive industry standards compilations and is widely adopted by customers in related sectors.

Key features:

1. The spirit level is positioned at the front for easy adjustment.

2. It has a timed measurement function.

3. The display resolution of the measurement data is two decimal places.

4. Measurement data is displayed directly on the LCD screen, eliminating the need for secondary calculations.

5. Comes standard with a sample adapter, requiring only a very small amount of sample—typically just 15–20 mL.

6. The high-temperature furnace employs an integrated, embedded heating system, ensuring uniform heat distribution and low thermal inertia.

7. The temperature controller employs the latest self-tuning PID control algorithm, ensuring precise temperature regulation. A large backlit LCD screen directly displays setpoint temperature, actual temperature, operating status, heating power, and other key parameters, making operation simple and intuitive.

8. The viscometer is equipped with an RS-232 interface, enabling direct connection to a miniature thermal printer.

Reference standard:

GB/T 2794-1995 Determination of Adhesive Viscosity, HG/T 3660-1999 Determination of Melt Viscosity of Hot-Melt Adhesives, and relevant standards for asphalt viscosity testing.

Technical specifications:

Parameter item	Specific explanation
Display mode	Backlit LCD display
Rotational speed (r/min)	0.5/1/2/5/10/20/50
rotor	21#, 27#, 28#, 29#
Measurement range	(MPa·s) 10 ~ 200,000 (200,000)
Measurement error	(Newtonian fluid) ±3%
Repeatability error	(Newtonian fluid) ±0.5%
Display precision	0.01 MPa·s
Scheduled measurement function	The measurement time can be set arbitrarily (less than 99 hours).
Heating method	Electric heating, with a heating power of 300 watts.
Temperature control range	Room temperature +10℃ ~ 250℃
Temperature control accuracy	0.1℃
Data Output Interface	There is
External dimensions	30x30x45cm
Weight	30kg

Standard configuration:

Serial number	Equipment/Accessory Name	Quantity	Serial number	Equipment/Accessory Name	Quantity
1	Host	1 unit	6	rotor	21#, 27#, 28#, 29#
2	Outer rotating drum	2 pieces	7	Temperature control device	1 piece
3	High-temperature heating furnace	1 piece	8	Power supply, cable	Two sticks
4	Data processing software	1 serving	9	Instruction Manual	1 serving
5	Warranty card	1 serving	10	Certificate of Conformity	1 serving

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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

Which materials can be measured by your Vicat softening point tester?

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

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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