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Computerized Digital Display Pendulum-Type Coefficient of Friction Tester

With the development of the transportation sector, the issue of skid resistance on road surfaces—such as highways, urban streets, and airport runways—has attracted widespread attention from relevant authorities. The pendulum friction coefficient tester (hereafter referred to as the pendulum tester) is an instrument used to measure the friction coefficients of pavements, airport runways, pavement markings, and similar surfaces. It can also serve, through the measurement of typical pavement friction coefficients, as one of the bases for determining optimal tire formulations. This instrument is easy to calibrate and simple to operate; it has minimal impact on traffic during testing, yields relatively stable data, and can be used both indoors and outdoors. Principle: The pendulum tester is a dynamic pendulum‑impact type device. It is designed based on the fundamental principle that “the loss of potential energy of the pendulum equals the work done in overcoming friction between the rubber pad mounted at the end of the pendulum arm and the road surface as the pad slides across it.”

Category:

Pavement, Subgrade, and Aggregate Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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Computerized Digital Display Pendulum-Type Coefficient of Friction Tester

Description

Product Introduction:

With the development of the transportation sector, the issue of skid resistance on roadways, urban streets, and airport runways has garnered widespread attention from relevant authorities. The pendulum friction coefficient tester (hereafter referred to as the pendulum tester) is an instrument used to measure the friction coefficients of pavements, airport runways, pavement markings, and similar surfaces. It can also serve, through the measurement of typical pavement friction coefficients, as one of the bases for determining tire‑tread compound formulations. This instrument is easy to calibrate and simple to operate; it has minimal impact on traffic during testing, yields highly stable data, and can be used both indoors and outdoors.

Principle

The pendulum tester is a dynamic pendulum‑impact instrument. It was developed based on the fundamental principle that “the loss of potential energy of the pendulum equals the work done to overcome friction between the rubber pad mounted at the end of the pendulum arm and the road surface as it slides along.”

Technical Specifications:

Parameter item	Specific specifications
Head-shaking quality	(1.50±0.03)kg
Pendulum center distance (distance from the pivot point)	410±5mm
Oscillating torque	615,000 gram-millimeters
The normal static pressure of the rubber sheet on the road surface	(22.2±0.5)N
Rubber Sheet Specifications	76.2 mm × 25.4 mm × 6.35 mm (±0.5 mm); 31.75 mm × 25.4 mm × 6.35 mm (±0.5 mm)
Distance from the outer edge of the rubber sheet to the swing center	510mm±2mm
Total instrument mass	Approximately 12 kg
Set value precision and range	Setpoint resolution: 0.1 BPN; setpoint range: 0–150 BPN.
Charging power supply	DC 12V, 500mA
Temperature measurement accuracy and range	Measurement accuracy: 0.1°C; measurement range: 0–100°C.
Continuous operating time on a full charge	40 hours
Display configuration	3.3-inch Chinese-language LCD screen, simultaneously displaying operating status, swing value, temperature, battery voltage, and the number of test cycles, among other parameters.
Operating temperature of the computer grinder	-15 degrees to -65 degrees
Computer grinding machine external dimensions	750mm×580mm×650mm

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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?

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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?

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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Computerized Digital Display Pendulum-Type Coefficient of Friction Tester

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Address:Tianjin Jinghai Economic Development Zone

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