LabCompanion Custom-Built Forced-Air Constant-Temperature Drying Oven, 20L Capacity

Overview

The LabCompanion Custom-Built Forced-Air Constant-Temperature Drying Oven (20L) is an industrial-grade thermal processing system engineered for precise, repeatable drying, curing, sterilization, and pre-conditioning of laboratory and pilot-scale samples. Designed around a robust forced-air convection architecture, the oven ensures uniform heat distribution across the entire chamber volume via high-efficiency axial fans and strategically positioned air inlets and exhaust ducts. Unlike natural-convection ovens, this model actively circulates heated air at controlled velocity—minimizing thermal gradients and reducing process variability. Its operational envelope spans from ambient +10°C up to 300°C, making it suitable for applications requiring elevated thermal stability without vacuum or inert atmosphere integration. The unit complies with fundamental safety and electromagnetic compatibility standards applicable to Class II electrical laboratory equipment per IEC 61010-1, and its structural design accommodates integration into GLP-compliant workflows when paired with validated procedures and audit-trail-capable controllers.

Key Features

• Forced-air convection system with adjustable airflow velocity and directional baffling for enhanced temperature uniformity (±0.5°C at steady state)
• Dual heating configuration options: electric resistance heating with internal air-heating elements, or external thermal oil circulation for higher thermal inertia and reduced surface oxidation risk
• Chamber constructed from either AISI 304 stainless steel (standard for corrosion resistance and cleanability) or electrogalvanized steel (cost-optimized alternative for non-aggressive environments)
• Intelligent programmable controller (optional ‘D’ series) featuring multi-segment ramp-soak profiles, real-time deviation alarms, and password-protected parameter locking
• High-precision PT100 sensor array with digital PID algorithm for dynamic temperature regulation and minimal overshoot
• Robust mechanical construction including double-wall insulated cabinet (rock wool insulation, ≥60 mm thickness), reinforced door gasketing, and heavy-duty casters with locking brakes
• Comprehensive safety suite: over-temperature cut-off (mechanical backup), door-open interlock, ground-fault circuit interrupter (GFCI), and thermal fuse protection

Sample Compatibility & Compliance

This 20L drying oven supports a broad range of sample types—including glassware, metal components, polymer substrates, pharmaceutical excipients, ceramic green bodies, and moisture-sensitive powders—provided they remain chemically stable within the specified thermal range. Chamber dimensions (940 × 700 × 1400 mm) allow accommodation of stacked trays, standard ISO/IEC 17025-compliant drying racks, or custom fixtures. The unit meets general requirements for laboratory equipment under ISO/IEC 17025:2017 (Clause 6.4.2 on environmental conditions), and its optional programmable controller supports data logging traceability aligned with FDA 21 CFR Part 11 principles when deployed with electronic signature-enabled software. While not intrinsically rated for hazardous locations, it may be installed in Class 1, Division 2 environments with appropriate site-specific risk assessment and ventilation verification.

Software & Data Management

The optional ‘D’ series intelligent controller provides an embedded 4.3-inch TFT LCD interface with intuitive menu navigation and real-time graphical display of setpoint, actual temperature, elapsed time, and alarm status. All temperature profiles, run logs, and event timestamps are stored internally (≥10,000 records) and exportable via USB port in CSV format for post-processing in Excel or LIMS platforms. When connected to LabCompanion’s optional Ethernet module (sold separately), the oven supports Modbus TCP communication for centralized monitoring across lab-wide SCADA systems. Audit trail functionality—comprising user ID, timestamp, parameter change, and reason-for-change fields—is enabled by default in compliant configurations, satisfying documentation requirements for GMP Annex 11 and ISO 13485 quality management systems.

Applications

• Moisture content determination per ASTM D229, ISO 758, or USP <731>
• Pre-drying of filter papers, crucibles, and volumetric glassware prior to gravimetric analysis
• Curing of epoxy-coated substrates, powder coatings, and adhesive bonds in materials R&D
• Accelerated aging studies for packaging materials and medical device components (per ISO 11607-1)
• Thermal conditioning of calibration standards before metrological evaluation
• Residual solvent removal from synthesized organic compounds in synthetic chemistry labs
• Stabilization of hygroscopic reference materials in metrology and reference labs

FAQ

What is the maximum operating temperature for this model?
The oven is rated for continuous operation up to 300°C, with full thermal stability and uniformity maintained across the entire chamber volume at that setpoint.

Can the chamber be configured with stainless steel lining only?
Yes—AISI 304 stainless steel is the standard chamber material option. Galvanized steel is available upon request for cost-sensitive applications where chemical exposure is minimal.

Is the unit compatible with external data acquisition systems?
Yes, via optional RS485/Modbus RTU or Ethernet/Modbus TCP interfaces. Integration with LabVIEW, MATLAB, or enterprise LIMS is supported using standard protocol drivers.

Does the oven support validation documentation (IQ/OQ/PQ)?
LabCompanion provides factory-assembled IQ/OQ templates and can supply certified temperature mapping reports (per ISO 14644-3) upon request. PQ execution remains the responsibility of the end user’s qualified personnel.

What power supply configurations are supported?
Internal heating operates on single-phase AC 220 V, 50 Hz. External thermal oil heating requires three-phase AC 380 V, 50 Hz. Electrical specifications are fully documented in the technical datasheet and installation manual.