Product Introduction 
The puncture tester operates on the pendulum impact principle. A puncture head of specified shape and dimensions is mounted on the end of a pendulum. The pendulum is released from a fixed height, swinging freely so that the puncture head punctures the clamped specimen at its lowest point. The energy consumed by the pendulum during the puncture process is indicated on the scale dial, representing the puncture resistance of the specimen in joules (J). This test simulates the impact from sharp objects that boxes may encounter during transport and handling, quantitatively characterizing the ability of corrugated board to resist puncture failure. The instrument is equipped with multiple scales, allowing users to select the appropriate measuring range for optimal reading accuracy. The quick-clamping mechanism and automatic handle return design ensure efficient and convenient operation.

Key Features 
Wide Range Multi-Scale System Equipped with four scales (A/B/C/D) covering a measuring range of 0-48 J with a minimum graduation of 0.05 J, accommodating testing needs from thin board to heavy-duty board.
International Standard Compliance Designed and manufactured in accordance with ISO 3036 and GB/T 2679.7, ensuring globally comparable test data.
Quick-Clamping Mechanism Specimen clamping uses a quick-clamp device for convenient operation, ensuring the specimen remains firmly in place during testing.
Automatic Handle Return The operating handle automatically returns to its original position after each test, simplifying workflow and improving testing efficiency.
Reliable Safety Protection Equipped with safety guards to prevent accidental pendulum contact and ensure operator safety.
Robust and Durable Construction Weighing approximately 100 kg with a solid, stable structure suitable for high-frequency, long-term use in laboratories and on production lines.
Intuitive and Easy Operation Mechanical pendulum structure with direct scale reading; no complex electronic components, making it easy to maintain and exceptionally durable.
Wide Industry Application Standard equipment for board and box manufacturers, research institutions, and commodity inspection agencies.

Main Technical Specifications

FAQ 
1. What is the difference between puncture testing, edge crush testing, and burst testing?
Puncture testing simulates the resistance of a box to penetration by sharp objects, reflecting dynamic impact resistance against localized failure. Edge crush testing evaluates the board's ability to resist compressive forces in the vertical direction, while burst testing measures the board's resistance to uniformly increasing pressure until rupture. These three tests evaluate board mechanical properties from different perspectives and complement each other.

2. How to select the appropriate scale?
For specimens with unknown strength, begin with the largest scale—Scale D (0-48 J)—for a trial test. Based on the result, select the scale that places the reading in the upper-middle range for optimal accuracy. For example, use Scale A for readings around 5 J and Scale B for readings around 10 J.

3. Are there requirements for specimen size and shape?
Specimens should be of a specified minimum size of corrugated board, flat-surfaced, and free from creases or damage. Refer to GB/T 2679.7 or the instrument's user manual for detailed size requirements and sampling methods.

4. How to calibrate and maintain the instrument?
The instrument is factory-calibrated. Routine verification can be performed by checking the pendulum's free swing and the scale zero position. Periodically add an appropriate amount of lubricating oil to moving parts and keep the equipment clean. If data anomalies are detected, contact our after-sales service for professional calibration and maintenance.

5. What should be done if the pendulum fails to puncture the specimen?
If the pendulum does not fully puncture the specimen, the specimen's strength exceeds the current scale's measuring range. Switch to a larger scale and retest until complete puncture is achieved. Readings obtained without complete puncture should not be considered valid test results.

6. What safety precautions should be observed during operation?
Ensure the specimen is firmly clamped before testing, and keep non-operating personnel away from the pendulum's range of motion. Never reach into the testing area after pendulum release. The instrument is equipped with safety guards; ensure they are in the correct position during testing. Refer to the user manual for detailed safety instructions.

After-Sales Service 
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Puncture Tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and testing method consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.