Microcomputer based burst strength testing machine

Product introduction of durability tester:

The ZY-NPY5600 Microcomputer-Controlled Bursting Strength Tester is a specialized instrument designed to measure the bursting strength of materials such as paper, paperboard, and single- and multi-layer corrugated board. It is also suitable for testing the bursting strength of non-paper materials such as silk, cotton fabric, copper foil, and aluminum foil.

How it works:

Using a pneumatic clamping method, the specimen is placed on an elastic rubber membrane and secured with a specimen clamp. Pressure is then applied uniformly, causing the specimen and the membrane to bulge freely together until the specimen ruptures. The specimen’s burst strength is the maximum pressure applied.

Core strengths：

7.0-inch touchscreen display with seamless switching between Chinese and English;
Pneumatic specimen clamping; film burst testing method;
The pressure plate features a circular opening aligned with the test axis, ensuring more stable and accurate data;
Automatic sample clamping eliminates operator influence during the testing process;
Sealed test indenter prevents film rupture;
Built-in calibration system with delayed pressure application control and delayed pressure release control; automatically resets after testing;
Built-in upper and lower limit protection devices and overload protection; film rupture is prevented even during empty testing or when exceeding the protection range.
Equipped with a dual-seal oil circuit system, ensuring high-strength, high-pressure sealing throughout the entire oil circuit to prevent oil leaks, thereby enhancing service life and stability;
Powerful data analysis capabilities display real-time test variations, including instantaneous force, strength, clamping force, maximum value, minimum value, average value, and burst index.

Product configuration:

Standard Configuration: Main unit, dedicated wrench, 5% silicone oil, rubber membrane, aluminum foil calibration sheet, mini printer, thermal paper, air tubing, power cord
Optional Accessories: Professional software, communication cable, silent air compressor (set)

Application scope of blasting strength testing machine：

Carton： Suitable for testing the burst strength of corrugated cardboard boxes, single-layer cardboard boxes, and heavy-duty cardboard boxes used for packaging products
Packaging cardboard：corrugated cardboard, box cardboard, white cardboard, burst strength test
Hardboard： suitable for color boxes, high weight cattle trucks, and gray cardboard for durability testing
Artificial leather：suitable for testing the burst strength of various artificial leather and leather
Other： Testing of burst strength of non paper materials such as fiber cloth, cotton cloth, silk, etc

Measurement range	80~6000kpa
Accuracy	≤ ± 0.25%
Resolution	0.01kpa
Deformation error	≤ 0.25mm
Concentricity of upper and lower plates	≤ 0.25mm
When the pressure of the adhesive film convex disc	10mm, (170~220)kPa； At 18mm, (250~350)kPa
Oil delivery speed	175 ± 5ml/min
Pressure outer diameter	35mm ± 1mm
Work displacement	53mm ± 2mm
Drive structure with	all steel chain drive to improve stability and lifespan
Deformation monitoring	can monitor sample testing in real-time
Upper pressure plate diameter	(31.5 ± 0.1) mm
lower pressure plate diameter	(31.5 ± 0.1) mm
Measurement head control	intelligent control pressure relief system
System power supply	0.5A solid-state power supply+3A industrial grade switching power supply (dual power supply for more stable current delivery)
Clamp positioning	sealing type free directional positioning test head, explosion-proof film
Positioning area	65.313cm ²
Clamping force	0~1200kpa (adjustable, clamping force depends on the pressure of the air pump)
Human computer interface	7.0-inch foldable touch screen
Print output	modular integrated thermal printer
Dimensions	450mm × 450mm × 620mm
Weight	approximately 60kg

Q1: What is a Bursting Strength Tester and why is it essential for packaging?

A: A Bursting Strength Tester, also known as a Mullen Tester, measures the maximum hydraulic pressure a material can withstand before rupturing. It is essential for the packaging industry because it evaluates the structural integrity of paper, corrugated board, and textiles, ensuring that boxes can protect contents during shipping and handling.

Q2: Which international standards does your equipment comply with?

A: Our instruments are strictly engineered to meet and exceed global testing standards, including:

ISO 2759: Board — Determination of bursting strength.
ISO 2758: Paper — Determination of bursting strength.
ASTM D3786: Standard Test Method for Bursting Strength of Textile Fabrics.
TAPPI T807/T810: Bursting strength of paperboard and corrugated board.

Q3: What is the difference between a Paper Burst Tester and a Cardboard Burst Tester?

A: The primary difference lies in the pressure range and the rubber diaphragm thickness. A Paper Burst Tester (Low Pressure) typically measures up to 1500 kPa for lightweight materials. A Cardboard Burst Tester (High Pressure) can measure up to 6000 kPa or more, using a thicker diaphragm to handle the higher force required to rupture corrugated board.

Q4: How often should I replace the rubber diaphragm and calibrate the machine?

A: The rubber diaphragm should be replaced when it loses its elasticity or shows visible wear (usually after 500-1000 tests, depending on the material). Calibration should be performed annually by a certified technician or using standard aluminum foil sheets to ensure the pressure sensor remains accurate.

Q5: Can the Bursting Strength Tester be used for non-paper materials?

A: Yes. Beyond paper and cardboard, our testers are widely used for textiles, non-woven fabrics, metal foils, and plastic films. As long as the material can be securely clamped and falls within the machine's pressure range, it can be tested for rupture resistance.