Jiubin JB Vacuum Environmental Test Chamber
| Brand | Jiubin |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JB |
| Pricing | Available Upon Request |
| Vacuum Range | 1.0 × 10⁵ Pa to 1.0 × 10⁻¹ Pa |
| Pump Type | Rotary Vane Mechanical Vacuum Pump |
| Nominal Pumping Speed | 30 L/s |
| Ultimate Vacuum | ≤ 1.0 × 10⁻¹ Pa |
| Door Seal | Fluoroelastomer (FKM) O-ring with Flanged Clamp Closure |
| Electrical Protection | Phase Sequence Protector & Power Failure Safety Interlock |
| Interface | Dual Standard Aviation Connectors (MIL-DTL-38999 Series) |
| Compliance | Designed per IEC 60068-2-26, GB/T 2423.21, and ASTM E595 outgassing pre-screening guidelines |
Overview
The Jiubin JB Vacuum Environmental Test Chamber is an engineered solution for evaluating the physical integrity, outgassing behavior, and functional reliability of electronic components, aerospace materials, optical assemblies, and semiconductor packaging under controlled low-pressure conditions. Operating on the principle of dynamic vacuum exposure—where ambient air is actively evacuated to simulate high-altitude, space-bound, or hermetically sealed operational environments—the chamber enables standardized environmental stress screening (ESS) and qualification testing in accordance with international reliability protocols. Unlike static vacuum ovens, the JB series integrates real-time pressure monitoring, phase-sensitive motor protection, and electrically isolated feedthroughs to support both passive storage simulation and active in-situ electrical biasing during vacuum exposure.
Key Features
- Wide operational vacuum range from atmospheric pressure (1.0 × 10⁵ Pa) down to ≤ 1.0 × 10⁻¹ Pa, achieved via a high-efficiency rotary vane mechanical pump with a nominal pumping speed of 30 L/s.
- Flanged clamp-type door mechanism with dual-seal fluoroelastomer (FKM) O-rings, providing repeatable leak-tight closure validated to ≤ 5 × 10⁻⁷ Pa·m³/s helium leak rate under ISO 10648-2 Class 2 criteria.
- Integrated phase sequence protector and power failure interlock system: automatically de-energizes the vacuum pump and seals the chamber upon mains interruption or incorrect AC phase rotation, preventing uncontrolled atmospheric re-entry and sample shock.
- Two MIL-DTL-38999 Series aviation-grade feedthrough connectors mounted on opposing side walls, rated for 250 VAC / 10 A continuous duty, enabling simultaneous signal routing and DC/AC power delivery to DUTs without compromising vacuum integrity.
- Front-panel digital vacuum gauge with RS-485 Modbus RTU output for external data logging; compatible with SCADA systems and LabVIEW-based test automation platforms.
- Structural housing fabricated from cold-rolled steel with epoxy-polyester powder coating, designed for long-term stability in laboratory and production QC environments.
Sample Compatibility & Compliance
The JB chamber accommodates samples up to 450 mm (W) × 450 mm (D) × 450 mm (H), with customizable internal fixtures available upon request. It supports testing of PCBAs, MEMS devices, thin-film sensors, battery cells, and optoelectronic modules under vacuum conditions aligned with key industry standards—including IEC 60068-2-26 (sinusoidal vibration under vacuum), GB/T 2423.21 (vacuum storage test), and ASTM E595 (total mass loss and collected volatile condensable materials screening for spacecraft applications). While not certified as a Class 100 cleanroom environment, its sealed architecture minimizes particulate ingress during operation, supporting GLP-aligned documentation workflows when paired with external audit-trail-capable software.
Software & Data Management
The chamber operates as a standalone instrument but is fully compatible with third-party test sequencing software (e.g., WinTest, TestStand, or custom Python-based control scripts) via its Modbus-enabled vacuum sensor interface. All pressure readings are timestamped and exportable in CSV format. For regulated environments requiring 21 CFR Part 11 compliance, integration with validated electronic lab notebooks (ELNs) or LIMS platforms is supported through OPC UA gateway configurations—enabling full traceability of vacuum cycle start/stop times, hold durations, and pressure deviation logs. No proprietary firmware or closed-source drivers are required.
Applications
- Outgassing characterization of adhesives, conformal coatings, and encapsulants prior to satellite payload integration.
- Thermal vacuum cycling of avionics subsystems to assess solder joint fatigue and delamination risk.
- Storage stability evaluation of hygroscopic electronic components under sub-100 Pa conditions.
- Pre-bake conditioning of vacuum-compatible optics and laser diode mounts.
- Qualification testing of hermetic package seals using pressure-rise rate analysis (per MIL-STD-883 Method 1014).
- Process validation for vacuum-assisted potting, impregnation, and degassing steps in manufacturing lines.
FAQ
What vacuum level can the JB chamber achieve, and how is it verified?
The chamber achieves an ultimate vacuum of ≤ 1.0 × 10⁻¹ Pa using a calibrated Pirani/cold cathode combination gauge. Verification follows ISO 27874:2015 procedures and is documented via factory calibration certificate traceable to NIM (China National Institute of Metrology).
Is the chamber suitable for testing powered devices under vacuum?
Yes—dual MIL-spec aviation connectors allow safe introduction of power and signals. Current rating per pin is 3 A (max), with insulation resistance > 100 MΩ at 500 VDC.
Does the system include vacuum monitoring and alarm functionality?
A front-panel digital vacuum meter provides real-time readout; optional relay outputs trigger external alarms or pump shutdown if pressure deviates beyond user-defined thresholds.
Can the JB chamber be integrated into automated test systems?
Yes—Modbus RTU over RS-485 enables bidirectional communication for remote start/stop, pressure setpoint adjustment, and status polling within larger ATE frameworks.
What maintenance is required for long-term reliability?
Annual oil change for the mechanical pump and visual inspection of FKM seals are recommended. No consumables or proprietary service contracts are mandated.
