Two Station Battery Cap Pressure Testing Machine for Cylindrical Cell Safety Vent and Disconnect Pressure Inspection

Product Overview

This precision testing system is engineered specifically for quality inspection and batch sampling of cylindrical lithium-ion battery top cap assemblies. By applying controlled pneumatic pressure to individual cap specimens, the equipment accurately captures both the current interrupt device (CID) electrical disconnect pressure threshold and the ultimate safety vent bursting pressure value. It provides battery manufacturers and research laboratories with critical empirical data to verify safety mechanisms before cell assembly.

Designed to support high-throughput battery manufacturing lines, pilot facilities, and quality assurance laboratories, the unit features a dedicated dual-station architecture. It accommodates both 18-series (such as 18650) and 21-series (such as 21700) battery caps simultaneously or independently. The integration of high-accuracy sensing hardware and automated pneumatic clamping ensures rapid cycle times, seamless switching between product formats, and minimal operator-induced variability during high-volume testing routines.

Built for continuous industrial operation, the apparatus integrates an internal single-stage gas booster pump that elevates standard factory compressed air up to high testing pressures without requiring external nitrogen gas bottles. Its rigid structural frame, heavy-duty pneumatic cylinders, and industrial PLC control architecture ensure long-term mechanical reliability, repeatable pressure ramp rates, and complete operator safety during destructive burst evaluations.

Key Features

• Dedicated Dual-Station Architecture: Features two independent testing stations customized for 18-series and 21-series cylindrical cell cap geometries, enabling multi-format sampling on a single footprint without frequent tooling changeovers.
• Integrated High-Ratio Pneumatic Booster: Utilizes an efficient single-stage air-driven gas booster pump that transforms standard 0.5–0.6 MPa shop air into testing pressures up to 6.0 MPa, completely eliminating the operational expense and safety hazards of high-pressure nitrogen gas cylinders.
• High-Precision Digital Pressure Sensing: Employs an industrial-grade digital pressure transmitter with rapid response times and high resolution, capturing exact CID disconnect trip points and burst rupture peaks with superior repeatability.
• Advanced PLC and Touchscreen Control: Controlled via an intuitive touchscreen interface running dedicated inspection software, providing real-time pressure curve display, automated threshold capture, and programmable test parameters.
• Intelligent Solenoid Valve Sequencing: Features an engineered pneumatic control circuit with dedicated auxiliary solenoid valving and custom PLC logic, ensuring smooth booster cycling, stable pressure ramping, and rapid exhaust venting upon rupture.
• Dual-Mode Data Traceability: Equipped with a built-in micro dot-matrix printer for immediate physical receipt generation on the production floor, alongside USB flash drive export capabilities for digital archiving and PC-based statistical process control.
• Heavy-Duty Pneumatic Clamping Fixtures: Dual air cylinder-driven clamping modules apply uniform, high-force sealing around the perimeter of the cap sample, preventing peripheral leakage and ensuring pure axial pressure loading.
• Comprehensive Operator Safety Enclosure: Designed with physical burst shielding and integrated pressure relief interlocks to protect inspection personnel from high-velocity gas discharge or component fragmentation during destructive rupture testing.

Applications

Technical Specifications

Why Choose This Product

• Zero Consumable Gas Overhead: Unlike conventional high-pressure burst testers that require recurring purchases of high-pressure bottled nitrogen, this equipment operates entirely on standard workshop compressed air. Its internal booster pump delivers clean, efficient pressure magnification up to 6.0 MPa, dramatically reducing ongoing operating expenditures.
• Optimized Dual-Format Productivity: With dedicated, pre-aligned tooling stations for both 18-series and 21-series cap formats, quality technicians can test diverse cell components on the same benchtop platform. This eliminates downtime associated with mechanical fixture changeovers and recalibration.
• Precision Engineering and Repeatable Metrics: Built with premium digital pressure transmitters, rigid pneumatic clamping actuators, and precision-machined seal interfaces, the unit provides exceptional measurement accuracy. It captures subtle CID electrical disconnection events and sharp burst pressure peaks with absolute clarity.
• Turnkey Data Management and Quality Auditing: Standardized with an onboard micro dot-matrix printer and USB data logging, the system satisfies stringent automotive and industrial traceability standards. Quality records can be printed instantly for physical lot travelers or exported for statistical process control in digital databases.
• Robust Construction and Dedicated Support: Built from industrial-grade structural components and backed by comprehensive technical expertise, this testing system delivers continuous reliability in demanding quality control environments.

Contact our technical sales team today to request a quotation or discuss customized clamping fixtures tailored to your specific battery cap geometry.

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