JianHu JH-Series Walk-In Environmental Test Chamber
| Brand | JianHu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | JH-Series Walk-In High-Low Temperature Test Chamber |
| Price Range | USD 42,000 – 84,000 (FOB Shanghai) |
| Temperature Range | -70 °C to +150 °C |
| Refrigeration Method | Dual-Stage Compressor-Based Cooling |
| Explosion-Proof Configuration | Available (ATEX/IECEx-compliant variants) |
| Temperature Fluctuation | ±0.5 °C |
| Temperature Uniformity | ±2.0 °C (at working volume center) |
| Temperature Deviation | ±2.0 °C (vs. setpoint, per IEC 60068-3-5) |
| Heating Rate | ≤60 min (from -40 °C to +85 °C) |
| Cooling Rate | ≤45 min (-40 °C to +25 °C), ≤60 min (-70 °C to +25 °C), ≤80 min (-70 °C to +85 °C) |
| Internal Dimensions | Customizable (standard configurations from 2 m³ to 20 m³ |
Overview
The JianHu JH-Series Walk-In Environmental Test Chamber is an industrial-grade, large-volume thermal stress testing system engineered for precise, repeatable simulation of extreme ambient conditions across aerospace, automotive, electronics, and advanced materials R&D sectors. Based on forced-air convection with dual-stage cascade refrigeration and high-efficiency PID-controlled heating, the chamber delivers stable, traceable temperature profiles compliant with IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and MIL-STD-810H Method 501.7/502.7. Its structural architecture integrates stainless-steel inner walls, polyurethane foam insulation (≥150 mm thickness), and airtight double-door sealing—ensuring low thermal leakage, minimal energy consumption, and long-term operational integrity under continuous duty cycles. Unlike benchtop chambers, the JH-Series supports full-system validation of assembled equipment, battery packs, control cabinets, or prototype vehicles—enabling holistic reliability assessment under real-world thermal transients.
Key Features
- Robust walk-in design with customizable internal volumes (2–20 m³), supporting test specimens up to 3.5 m in height and 2.8 m in width
- Precision temperature control via 3-zone independent air distribution system, minimizing stratification and ensuring compliance with IEC 60068-3-5 uniformity requirements
- Dual-stage cascade refrigeration using environmentally compliant R404A/R23 mixed refrigerant, enabling reliable operation down to -70 °C without liquid nitrogen dependency
- Explosion-proof variants certified to ATEX Directive 2014/34/EU (Category 2G, Zone 1) and IECEx Ex d IIB T4 Gb for hazardous area testing
- Integrated safety interlocks including overtemperature cutoff, refrigerant pressure monitoring, door-open alarm, and emergency power-off circuitry
- Modular construction with removable panels and service access hatches—facilitating on-site maintenance, calibration, and future capacity upgrades
Sample Compatibility & Compliance
The JH-Series accommodates heterogeneous test loads—including fully assembled EV traction inverters, avionics enclosures, medical imaging subsystems, and polymer composite panels—without compromising thermal stability. Chamber interior surfaces are electropolished 304 stainless steel, non-outgassing, and compatible with ISO 14644-1 Class 5 cleanroom protocols when equipped with HEPA filtration add-ons. All standard configurations meet ISO 9001:2015 manufacturing quality management requirements and support GLP/GMP audit readiness through optional 21 CFR Part 11-compliant electronic logbook integration. Calibration documentation follows ISO/IEC 17025 principles, with NIST-traceable sensor certificates available per test cycle.
Software & Data Management
Control and data acquisition are managed via the JianHu ETS-Link™ software platform—a Windows-based application supporting real-time multi-channel logging (up to 64 thermocouple inputs), programmable ramp-soak profiles, and automated report generation in PDF/CSV formats. The system includes built-in audit trail functionality with user-level permissions, electronic signatures, and immutable event logging—fully aligned with FDA 21 CFR Part 11 Annex 11 requirements. Remote monitoring is enabled via Ethernet/IP or optional 4G LTE module, allowing secure web-based access to chamber status, alarms, and historical trend data without local network exposure.
Applications
- Aerospace component qualification per DO-160 Section 4 (temperature) and RTCA/DO-160G environmental stress screening
- Automotive ECUs and ADAS sensors subjected to ISO 16750-4 thermal cycling and cold cranking validation
- Lithium-ion battery pack thermal runaway propagation studies under UL 9540A and GB/T 36276 protocols
- Pharmaceutical packaging stability testing per ICH Q1A(R2) accelerated conditions (e.g., 40 °C/75% RH)
- High-power semiconductor module burn-in and life-cycle validation at elevated junction temperatures
- Material science research on polymer crystallinity, elastomer hysteresis, and metal fatigue initiation under thermal gradient loading
FAQ
What temperature uniformity standards does the JH-Series comply with?
It meets IEC 60068-3-5 Class 2 (±2.0 °C tolerance across 90% of working volume) and can be upgraded to Class 1 (±1.0 °C) with enhanced airflow optimization.
Is remote calibration verification supported?
Yes—optional integrated reference sensor ports allow third-party metrology labs to perform in-situ verification without chamber shutdown.
Can the chamber be integrated into an existing factory MES or LIMS?
Fully supported via Modbus TCP, OPC UA, or RESTful API interfaces for bidirectional data exchange with enterprise systems.
What is the typical lead time for custom-sized configurations?
Standard models ship within 8–10 weeks; bespoke chambers with structural modifications require 14–18 weeks from PO confirmation and final layout approval.
Does JianHu provide IQ/OQ/PQ documentation packages?
Yes—validated installation, operational, and performance qualification protocols are included as part of turnkey commissioning services, aligned with ASTM E2500 and EU GMP Annex 15 guidelines.
