Carton Burst Strength Tester

Product Overview

The Carton Burst Strength Tester is a precision instrument designed to measure the maximum pressure resistance of corrugated cardboard, solid fiberboard, and other packaging materials under uniform radial pressure. This test determines the burst strength (also known as "Mullen strength"), a critical indicator of a material’s ability to withstand internal or external forces during transportation, stacking, or handling. The results help manufacturers optimize paper grammage, flute structures, and box design to meet industry performance standards.

Key Features

Accurate Burst Strength Measurement:
- Measures the maximum pressure a sample can withstand before rupturing, providing reliable data for quality control and material selection.
- Compliant with international standards such as ASTM D689, ISO 2758, and GB/T 454.
Dual Testing Modes:
- Supports standard burst testing (radial pressure) and optional ring crush testing (RCT) for versatile material evaluation.
High-Performance Components:
- Equipped with a precision hydraulic/pneumatic system for stable pressure application.
- High-accuracy load cells (±0.5% FS) and digital encoders ensure repeatable results.
User-Friendly Operation:
- Touchscreen HMI with preloaded test programs and customizable parameters (pressure speed, dwell time).
- Automatic calculation of burst strength (kPa or psi) and generation of test reports.
Safety & Durability:
- Overload protection and emergency stop function to prevent mechanical damage.
- Robust steel frame with anti-vibration design for continuous operation.

Technical Specifications

Parameter	Details
Burst Strength Range	500–5000 kPa (adjustable via pressure settings)
Test Area Diameter	Standard 31.6 mm (customizable sizes available)
Pressure Speed	10–200 kPa/min (programmable)
Sample Thickness	Up to 15 mm (dependent on fixture compatibility)
Data Accuracy	±0.5% FS (Full Scale)
Control System	PLC + HMI with USB/RS232 output, data logging, and report generation
Power Requirement	220V ±10%, 50/60 Hz, 5–7.5 kW

Components & Design

Frame:
- Heavy-duty steel construction with reinforced bearings for long-term stability.
Loading System:
- Hydraulic/pneumatic actuator with fine pressure adjustment for precise load control.
Fixtures:
- Replaceable burst test clamps and interchangeable anvils (e.g., circular or rectangular).
Safety Features:
- Safety guards, automatic shut-off, and pressure relief valves to protect operators.

Applications

Quality Control: Verify compliance with packaging industry standards (e.g., ISTA, ASTM).
R&D: Develop high-strength corrugated materials for heavy-duty shipping boxes or industrial packaging.
Performance Analysis: Predict material behavior under stress and optimize box design for cost-efficiency.

Compliance Standards

Aligns with ASTM D689 (Burst Strength of Paper), ISO 2758 (Paper Burst Test), GB/T 454 (Chinese National Standard), and TAPPI T 403 (Ring Crush Test).

Optional Accessories

Ring Crush Fixture: For combined burst and ring crush testing.
Data Acquisition Software: Advanced analysis tools for generating stress-strain curves.
Environmental Chamber: Simulates humidity/temperature effects on material strength.

Why Choose This Machine?

Precision: Certified calibration ensures traceable and repeatable results.
Efficiency: Automated workflows reduce testing time by up to 50%.
Versatility: Adaptable fixtures and parameters for diverse material testing needs.
Support: Includes on-site training, 24/7 technical support, and maintenance services.

Cardboard rupture strength testing machine