Leak and Seal Strength Tester MF-700D
1、Product Overview
The Leak and Seal Strength Tester MF-700D is suitable for the quantitative determination of the seal strength of each sealed edge, the heat-sealing quality, the burst pressure of a whole bag, gross leaks by the internal-pressure method and the sealing performance of flexible packaging bags formed by various heat-sealing and adhesive processes, as well as composite sterile medical-device packaging bags under YY/T 0681. It also provides quantitative determination of the overall sealing performance, pressure resistance, cap-body connection strength, pull-off strength, heat-sealed-edge seal strength and butting strength of GB 17876 plastic tamper-evident bottle caps and tubes.
2、Application Fields
| Basic Applications |
| Plastic Composite Bags Tests the compression resistance of various plastic films, aluminum films, paper-plastic composite films, aluminum-plastic composite films and other packaging bags. |
| Flexible Tubes Covers various flexible tubes used in daily chemical products and other industries, e.g. flexible tubes of toothpaste, face cream, cosmetics, pharmaceutics and food. |
| Creep Test & Creep to Failure Test Covers various packaging bags and boxes. |
| Extended Applications |
| Burst Test of Blister Packs Covers various blister packs. |
| Aerosol Valves Tests the seal performance of various aerosol valves, e.g. valves of pesticide, hair spray, auto spray paint and medical spray packages. |
| Three-Sided Sealing Materials Tests the withstand pressurization stress of packaging bags with three-sided seal and one-sided open. |
| Pilfer-proof Closures Tests the seal performance of various tamper-evident closures, e.g. closures used in packages for Coke, mineral water, beverage, edible oil, sauce (soy, vinegar and cooking wine), three-piece cans (beer and beverage) and paper cans (cylinder shape for potato chips). |
3、Testing Principle
The Leak and Seal Strength Tester MF-700D operates on the positive-pressure principle and offers three selectable test modes.
A. Burst Test: A specified amount of gas is injected into the test specimen, and the maximum pressure it withstands before bursting is measured.
B. Creep: The specimen is pressurized to 70% of that maximum pressure and held for a specified period, during which any change in pressure is observed.
C. Creep-to-Burst: The specimen is pressurized to 90% of the maximum pressure, and the time taken for it to burst is recorded.
Standards: ASTM F1140, ASTM F2054, ISO 11607-1, ISO 11607-2, GB 10440, GB 18454, GB 19741, GB 17447，GB/T 17876, GB/T 10004, GB/T 10005, GB/T 17590, BB/T 0003, BB/T 0025, QB/T 1871, YY/T 0681, YBB 00252005, YBB 00162002
4、Key Features
★ One-Touch Intelligent Control
Intelligent control of pressurization, pressure holding, timing and pressure release; the entire test process is completed with one-touch operation for high testing efficiency.
★ Selectable Test Ranges
Selectable test ranges provide a wide measuring span and a broad range of applications.
★ Dual Test Methods
Two test methods are available: restrained and unrestrained expansion.
★ Flexible Test Modes
Full support for test accessories, flexible test modes and diversified compatibility.
★ Imported SMC Pneumatic Components
Equipped with pneumatic components imported from SMC, a world-renowned brand, delivering durable, stable and reliable performance.
5、Technical Specifications
| Parameter | Specification |
| Test Range | 0 ~1MPa |
| Accuracy | ±0.5% |
| Air Supply Pressure | 0.4~1MPa |
| Air Supply Port | Φ8mm polyurethane tube |
| HD Touch Screen | 7in |
| Operating Voltage | AC 220V, 50Hz |
| Total Weight | 20 kg |