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Dart Impact Tester AZA1335
The AZA1335 Dart Impact Tester from AZALAB is a precision-engineered instrument designed to evaluate the impact resistance of plastic films and sheets under controlled conditions. This test method involves the impact of a free-falling dart from a defined height, determining the energy required to rupture the specimen. It is an essential tool for quality assurance and material development in industries such as packaging, polymer manufacturing, film extrusion, and flexible material testing.
Description
The AZA1335 provides a quantitative measure of a film’s toughness and durability, ensuring that products such as packaging films, plastic bags, and laminated sheets can withstand real-world stresses like handling, transport, and impact loads during use. By simulating sudden impact events, it helps manufacturers guarantee that their materials meet the performance standards required for modern packaging and industrial applications.
This equipment complies with ASTM D1709-16A and IS 2508:1984 (R2003) test standards, ensuring that test results are internationally recognized and repeatable across laboratories. The test identifies the dart impact energy value, which represents the material’s ability to resist puncture or tear when struck by a falling object, making it a vital metric in film performance analysis.
Key Features
- Rugged metallic base for superior stability and long service life.
- Electromagnetic hold-and-release mechanism ensures precise, vibration-free dart release for accurate impact testing.
- Dual drop height configuration (660 mm and 1524 mm) to accommodate both Method A and Method B testing as per ASTM D1709.
- Circular annular clamping system designed to provide firm, zero-slip specimen holding, ensuring consistent test results.
- Digital LED display for clear, real-time indication of test parameters and impact readings.
- Powder-coated mild steel body provides enhanced corrosion resistance and durability in demanding lab environments.
- Simple, user-friendly operation suitable for both laboratory and field testing applications.
- Highly repeatable results, ideal for routine quality control and research testing in polymer film production.
- Complies with global testing standards (ASTM & IS), ensuring universal acceptance of data.
Working Principle
In a typical test, a hemispherical dart of known weight is allowed to fall freely from a specified height onto a clamped film specimen. The dart either ruptures or does not rupture the film. By varying the dart weight and recording the failure point, the impact energy required to cause rupture is determined. This value indicates the film’s impact strength or resistance to mechanical failure, providing critical information for product design and quality assurance.
Technical Specifications
| Parameter | Specification |
| Model Number | AZA1335 |
| Inside Diameter of Clamp | 127 mm |
| Release Mechanism | Electromagnetic hold and release |
| Diameter of Dart Head | Method A – 38 mm; Method B – 50 mm |
| Height of Fall | 660 mm and 1524 mm (Adjustable) |
| Maximum Weight Capacity (Dart Mechanism) | 2 kg |
| Clamping Unit | Circular annular type with zero slippage |
| Power Supply | Single Phase, 220 V AC |
| Material of Construction | Powder-coated mild steel |
| Overall Dimensions (L×W×H) | 415 × 500 × 2153 mm |
Applications
- Plastic Film & Sheet Manufacturing – for routine quality control and product development.
- Flexible Packaging Industry – evaluating impact resistance for packaging durability.
- Polymer Research Labs – studying mechanical properties of new film formulations.
- Paper & Laminate Testing – assessing toughness in coated or layered materials.
- Quality Inspection Centers – ensuring compliance with international packaging standards.
Standards Compliance
- ASTM D1709-16A – Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method.
- IS 2508:1984 (R2003) – Indian Standard for polyethylene film testing.
The AZA1335 Dart Impact Tester is a reliable, precise, and user-friendly testing solution designed for accurate evaluation of plastic film impact resistance. Its sturdy construction, dual testing heights, electromagnetic release system, and adherence to ASTM and IS standards make it an indispensable instrument for modern film testing laboratories and quality control departments in the packaging and polymer industries.
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