JULABO SemiChill SC2500w Circulating Chiller
| Brand | JULABO |
|---|---|
| Origin | Germany |
| Model | SC2500w |
| Cooling Method | Water-Cooled |
| Temperature Range | −20 to +80 °C |
| Cooling Capacity | 2500 W |
| Temperature Stability | ±0.1 °C |
| Circulation Pump Pressure | 3.5 bar |
| Circulation Flow Rate | 33 L/min |
| Reservoir Volume | 21–33 L |
| Operating Mode | Continuous |
| Refrigeration Compressor Type | Water-Cooled |
| External Pt100 Sensor Input | Integrated |
| Communication Interface | RS232 (optional), Profibus (optional) |
| Sound Pressure Level | ≤63 dB(A) |
| Classification per DIN 12876-1 | Class III (FL) |
| Ambient Operating Temperature | 5–40 °C |
| Dimensions (W×L×H) | 49 × 62 × 105 cm |
| Weight | 123 kg |
| Pump Connection | NPT 3/4″ |
| Internal Tubing ID | 3/4″ |
Overview
The JULABO SemiChill SC2500w is a high-performance, water-cooled circulating chiller engineered for precision temperature control in demanding semiconductor manufacturing, electronics testing, automotive R&D, and advanced energy applications. Unlike conventional tap-water cooling systems, the SC2500w delivers closed-loop thermal management with full environmental compliance and zero process water consumption. Its core architecture integrates a robust hermetic refrigeration circuit with a high-efficiency water-cooled condenser, enabling stable operation across a wide dynamic range of −20 °C to +80 °C. Designed specifically for industrial cleanroom and high-reliability lab environments, the unit meets stringent requirements for long-term continuous duty, chemical compatibility with non-conductive heat transfer fluids, and mechanical resilience under sustained thermal load. The system’s modular construction supports seamless integration into automated process lines via standardized communication protocols.
Key Features
- Water-cooled condensation system optimized for stable ambient conditions (5–40 °C), eliminating dependency on variable air temperature or humidity
- Precision temperature stability of ±0.1 °C across the full operating range, verified per ISO/IEC 17025-accredited calibration procedures
- High-capacity circulation pump delivering up to 33 L/min at 3.5 bar pressure, with stepwise flow and pressure adjustment via front-panel keypad
- Corrosion-resistant fluid path: all wetted components constructed from stainless steel (AISI 316) and chemically inert engineering plastics compliant with SEMI F57 standards
- Integrated external Pt100 sensor input for remote bath or process-jacket temperature feedback—enabling cascade control configurations
- Dual-stage safety architecture: independent overload protection for both compressor and circulation pump, plus real-time liquid level and pressure monitoring with visual LED indicators
- Flexible heat transfer media compatibility—including deionized water, 30–50% ethylene glycol/water blends, Thermal G®, and other low-conductivity dielectric coolants approved for semiconductor tool cooling
Sample Compatibility & Compliance
The SC2500w is validated for use with non-aggressive, non-particulate heat transfer fluids meeting ASTM D1384 (corrosion inhibition) and IEC 60439-1 (electrical insulation) criteria. Its fluid path design conforms to SEMI S2/S8 safety guidelines for semiconductor equipment interfacing. The unit is CE-marked and complies with EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU, and RoHS 2011/65/EU. For regulated environments, optional firmware enables audit-trail logging and user-access controls aligned with FDA 21 CFR Part 11 requirements when paired with JULABO’s certified software platform.
Software & Data Management
The SC2500w supports bidirectional communication via RS232 (standard) and Profibus DP (optional) interfaces, enabling integration into SCADA, MES, and LabVantage systems. JULABO’s optional WinControl software provides real-time graphing, event logging, alarm history export (CSV/PDF), and programmable multi-step temperature profiles. All parameter changes, setpoint adjustments, and fault events are timestamped and stored locally for ≥30 days—supporting GLP/GMP traceability and internal quality audits. Remote monitoring is possible via Ethernet gateway (not included), with secure HTTPS-based access requiring role-based authentication.
Applications
- Semiconductor photolithography tools requiring sub-0.2 °C thermal drift over 8-hour exposure cycles
- Power electronics thermal cycling tests (e.g., EV battery modules, SiC inverters) per AEC-Q200 and JEDEC JESD22-A108
- Laser diode and fiber amplifier cooling in optical communications R&D
- Calorimetric instrumentation (DSC, TGA) where baseline stability and low noise are critical
- Process jacket cooling for pilot-scale chemical reactors and crystallization units
- Environmental stress screening (ESS) chambers requiring synchronized coolant supply with programmable ramp/soak profiles
FAQ
What types of heat transfer fluids are compatible with the SC2500w?
Deionized water, ethylene glycol/water mixtures (30–50% v/v), Thermal G®, and other non-conductive, low-corrosivity coolants meeting ASTM D1384 and SEMI F57 specifications.
Is the SC2500w suitable for cleanroom installations?
Yes—the unit features sealed electronics, zero oil mist emission, and a stainless-steel enclosure rated IP20; optional HEPA-filtered air intake kits are available for Class 100/ISO 5 environments.
Can the chiller operate unattended for extended periods?
Yes—designed for 24/7 continuous operation with dual redundant safety circuits, automatic leak detection (via level monitoring), and configurable email/SNMP alerts for critical faults.
Does it support external temperature feedback control?
Yes—an integrated Pt100 input allows connection to an external process sensor for closed-loop temperature regulation independent of the internal bath sensor.
What maintenance intervals are recommended?
Compressor oil and refrigerant charge require verification every 24 months under continuous operation; pump impeller and filter inspection is recommended annually per DIN 32733 maintenance guidelines.
