Plybond Tester

About Plybond Tester

A Digital Plybond Tester is a precision instrument used to measure the internal bond strength of paper and paperboard especially multi-ply materials like duplex board, kraft board, or corrugated paper. It helps determine how well the layers of paper are bonded together.

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Key Features of a Digital Plybond Tester:

Digital Display: Shows readings in joules or ft-lb with high accuracy.

Microprocessor-based Control: Ensures repeatability and reliability of results.

User-Friendly Interface: Simple button operation and LED/LCD screen.

Auto Reset Function: For ease of repeated testing.

Sample Clamping System: Holds test specimen securely during test.

Adjustable Release Mechanism: Controls pendulum release for consistent energy transfer.

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Typical Test Process:

1. A paperboard specimen is clamped between two plates.

2. A pendulum or hammer mechanism strikes the bonded plies.

3. The tester measures the energy absorbed in separating the plies.

4. The result reflects internal bond strength, crucial for packaging applications.

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Technical Specifications (may vary by model):

ParameterValue

Test Range00.5 ft-lb (or 00.7 J)

Accuracy1% of reading

DisplayDigital LCD or LED

Power Supply220V / 50Hz or battery-operated

CalibrationAuto or manual calibration

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Applications:

Duplex board quality testing

Corrugated board ply strength checking

Carton manufacturing

DIGITAL PLY BOND TESTER

Model: FSC-DPB-1003 (as seen on the label)

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Manufacturer (visible on the side machine)

FIBER SCIENTIFIC COMPANY, India known for paper testing equipment.

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Key Components in the Image

1. Digital Control Panel (Top left):

Keypad for setting up test parameters.

Digital screen for test results (usually in Joules or ft-lb).

2. Sample Clamping Station (Middle):

Equipped with multi-position clamps to hold paper specimens.

Tight and aligned to ensure accurate testing.

3. Pendulum/Impact Mechanism (Right upper vertical rod):

Applies impact to separate the bonded layers.

Operated either manually or through digital trigger.

4. Roll of Tape (left side):

Used for preparing or positioning the paper samples.

5. Manual Lever/Handle (Bottom right):

Used for loading/unloading or resetting the pendulum.

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How It Works

1. Cut and place a sample between clamps.

2. Secure it using the rotating knobs.

3. Initiate test via control panel or lever.

4. The pendulum hits the bonded area.

5. The energy absorbed during delamination is recorded digitally.

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Typical Output

Bond strength is shown in ft-lb, Nm, or Joules.

Higher values indicate stronger ply bonding in the paper.