MSK-TE500 Cylindrical Battery Cap Pressure and Leak Tester for 18650, 21700, 26650, 32650, and 4680 Cells
The MSK-TE500 is engineered to evaluate the integrity and safety features of cylindrical battery housings and their anti-explosive safety caps prior to final cell assembly. It is essential for verifying that battery casings do not leak electrolyte and that safety caps perform correctly under pressure conditions.
This tester operates primarily in two modes: a pressure decay leak test that simulates overpressurization inside the battery casing to detect electrolyte leakage or moisture ingress, and a pressurization test that measures the electric cut-off pressure and bursting pressure of the battery safety cap. The pressurization test involves a dome-shaped aluminum component that detaches to trigger electric cut-off before bursting under excessive pressure.
Key Features
- Pressure decay test ensures no electrolyte leaks and prevents moisture ingress into battery casing.
- Pressurization test evaluates electric cut-off and physical burst pressure of safety caps.
- Large touch panel for easy parameter setting including test pressure, maintenance time, and ramp rate.
- Precision pressure sensor records real-time pressure changes and generates pressure curves.
- Built-in air compressor provides up to 3 MPa maximum testing pressure.
- Manual nail penetrator integrated for pre-test cell punching.
- USB port enables data export for detailed analysis.
- Includes one set of 18650 battery testing dies; customization available for 21700, 26650, 32650, and other sizes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | MSK-TE500 |
| Testing Modes | Pressure decay leak test, Pressurization burst test |
| Maximum Testing Pressure | 3 MPa |
| Power Supply | DC 24V, 50W; includes 100-240VAC universal adapter (UL certified) |
| Control Interface | Large touch panel |
| Data Output | USB port for data download |
| Included Testing Dies | One set for 18650 batteries |
| Optional Testing Dies | Available for 21700, 26650, 32650, 4680 (customized, additional cost) |
Typical Applications
The MSK-TE500 is used in battery manufacturing and research laboratories to verify the sealing integrity and safety performance of cylindrical battery cells. It is critical for quality control of electrolyte containment and safety cap functionality in lithium-ion and other rechargeable battery formats.
Configuration and Operating Notes
Before conducting leak tests, the battery cap must be sealed using the MSK-510M sealing device (sold separately). The machine includes a manual nail penetrator to punch assembled cells prior to pressurization testing. Custom dies for battery sizes other than 18650 require contacting the manufacturer for details and additional costs.
