lab testing equipment, leak tester, coefficient of friction tester

COF-01 Coefficient of Friction Tester
Background
The coefficient of friction pertains to the friction present between two
surfaces. A lower coefficient of friction signifies that less force is needed
for sliding to commence, while a higher value indicates a greater force
requirement.
The coefficient of friction varies based on the specific materials involved. In
the context of packaging film, the coefficient of friction refers to the extent
of 'slipperiness' exhibited by the packaging material when in contact with
different components of the packaging machine or other materials.
The management of the coefficient of friction holds significance in enhancing
performance and mitigating issues during the creation, transportation, and
storage of packages.
Numerous factors, such as antiblock additives, corona treatment, antistatic
agents, inks, varnishes, and adhesives, can influence the coefficient of
friction.

Application
The COF-01 Coefficient of Friction Tester is designed to measure both static
and kinetic coefficients of friction for a wide range of materials. These
materials include plastic films, sheets, rubber, paper, paperboard, woven and
non-woven fabrics, metal-plastic composite belts used in communication cables
and conveyor belts, wood, coatings, brake pads, windshield wipers, shoe
materials, and tires. The tester can also be adapted or modified to accommodate
various other material types and testing standards.

Standards: ASTM D1894, ISO 8295, TAPPI T816, GB 10006

Formula
The coefficient of friction (COF) is calculated by dividing the force needed to
move one surface across another by the force perpendicular to the surfaces. The
formula is μ = f ÷ N, where μ represents the coefficient of friction, f is
the force of friction, and N is the normal force. There are two types of
coefficients of friction: static and kinetic.

Static COF (μs): The static coefficient of friction (μs) quantifies the force
required to initiate movement between two surfaces. In the packaging industry,
the static coefficient of friction is commonly used to assess the friction
between bags during stacking, cartoning, or palletization, especially when
plastic surfaces come into contact with each other.

Kinetic COF (μd): The kinetic coefficient of friction (μd) measures the force
necessary to sustain ongoing movement between surfaces. In the packaging
sector, the kinetic coefficient of friction finds application in scenarios
involving rolls of plastic films processed on packaging machinery. This is
particularly relevant for situations where plastic surfaces interact with metal
components.

Technical Features
The COF-01 Coefficient of Friction Tester has been aiding the flexible industry
since its inception.
1. It employs PLC control and an HMI touch screen for interaction. The design,
of industrial caliber, assures stability and extended service life.
2. The driving mechanism is powered by a stepper motor and a precision ball
lead screw.
3. It exhibits real-time test curves, and automatically records maximum,
minimum, and average test results.
4. Both static and kinetic coefficients of friction are gauged.
5. Compliance with multiple test standards is incorporated.
6. A dot matrix microprinter is integrated.
7. The test plane is constructed entirely from aluminum.
8. It offers RS232 output and professional software(Optional).
9. Local language display is supported(Customized).

Main Parameters
Load Cell 5 N(or as required)
Accuracy 0.5 F.S.
Sled 200±1g (or as required)
Sled Size 63.5mm*63.5mm (or as required)
Test Speed 100mm/min (ISO), 150mm/min (ASTM)
Dimensions 540mm(L)*380mm(W)*240mm(H)
Weight NW 21kg
Power 110~220V 50/60Hz

Minimum Order: 1 sets