Stress Simulation Gelbo Flex Testing machine ASTM F392 Four test stations stationary movable mandrels

Product group
Flex Durability Tester

Cell Instruments Co., Ltd.

Cell Instruments Co., Ltd.

Product description

Product Details:

Place of Origin: China
Brand Name: Cell Instruments
Model Number: GFT-01

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: USD 1000~10000 Set
Packaging Details: export carton
Delivery Time: 5-8 working days
Payment Terms: TT LC
Supply Ability: 100 set/week

Detailed Product Description

Standard: ASTM F392
Method: Condition ABCDE
Power: AC110~220V
Warranty: 12 Months

Stress Simulation Gelbo Flex Testing machine ASTM F392 simulates the resistance against repetitive strain for films, composites and coating films, etc.

Flex failure property is determined by measuring the pinholes formed in the sample structure. Flex durability tester is also called Gelboflex.


The sample size (200 by 280 mm) is attached to the flex tester mandrels. The flexing action consists of a twisting motion combined with a horizontal motion (compression), thus repeatedly twisting and crushing the film. The test set up gives a twisting motion of 440º in the first 90 mm of the stroke and is followed by a straight horizontal motion of 65 mm. The speed is 45 cycles per minute.

Flex durability tester technical data

Flex Frequency 45 /minute
Horizontal Stroke 155 mm or 80 mm
Stations  ` 4
Flex Angle 440° (90 mm) or 400° (80 mm)
Sample Size 280 mm x 200 mm

Flex Durability Tester​ Features

PLC control and 7 inch touch screen operation
5 standard test modes and 4 test stations
Long and short stroke fast switching
Condition A, B, C, D and E can be chosen
Micro printer(Optional)
Standard: ASTM F392, "Flex durability of flexible barrier materials".

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