DRETOP UR5-90LV High-Temperature Vacuum Drying Oven

Overview

The DRETOP UR5-90LV High-Temperature Vacuum Drying Oven is an engineered solution for thermal processing under controlled low-pressure environments. It operates on the principle of vacuum-assisted thermal desorption: by reducing ambient pressure inside the chamber to ≤133 Pa, the boiling point of volatile components—including water, solvents, and residual gases—is significantly lowered. This enables efficient, uniform drying, degassing, annealing, and outgassing of heat-sensitive or oxidation-prone materials without thermal degradation. Designed for sustained operation up to 500 °C, the UR5-90LV integrates robust thermal architecture with precision vacuum integrity, making it suitable for applications demanding strict process repeatability, inert atmosphere compatibility, and compliance with laboratory-grade thermal validation protocols.

Key Features

• High-Temperature Capability: Stable temperature control from ambient +10 °C to 500 °C, validated for continuous operation within this range using a microprocessor-based PID controller with 0.1 °C resolution and ±1 °C uniformity across the 90 L stainless steel chamber (450 × 450 × 450 mm).
• Vacuum Integrity System: Double-layer stainless steel inner chamber with argon arc-welded seams; high-temperature silicone door gasket; optional water-cooled jacket and integrated circulating water unit to suppress seal thermal aging and maintain long-term vacuum stability.
• Thermal Safety Architecture: Dual-stage overtemperature protection including independent mechanical limit controller, real-time deviation alarm, and automatic shutdown upon exceeding user-defined thresholds. Additional safeguards include short-circuit, overload, ground-fault, and overheat circuit protection.
• Intelligent Control Interface: Standard large-format LCD display with tri-color data visualization (setpoint, PV, status), self-diagnostic fault code reporting, programmable timer, and optional upgrade paths to color touchscreen controllers (UR5-LBV-II series) supporting multi-segment ramp-soak profiles.
• Modular Vacuum Protection: Factory-integrated B-type (for low-moisture loads) or E-type (for high-moisture loads) vacuum pump protection systems—featuring condensate traps, thermal bypass, and post-chamber gas cooling—to extend pump service life and ensure consistent vacuum performance across extended cycles.

Sample Compatibility & Compliance

The UR5-90LV accommodates a broad spectrum of sample forms—including powders, thin films, semiconductor wafers, battery electrode sheets, ceramic green bodies, aerospace composites, and pharmaceutical excipients—without mechanical disturbance, thanks to its fanless vacuum environment. Its stainless steel interior and removable, height-adjustable trays support GLP/GMP-aligned handling and cleaning validation. The system meets foundational requirements for ASTM E2276 (vacuum oven qualification), ISO 17025-compliant calibration traceability, and supports audit-ready documentation when paired with optional RS485/USB interfaces and embedded printers. Optional inert gas inlet valves enable nitrogen or argon purging for oxygen-sensitive processes, satisfying USP , ICH Q5C, and FDA 21 CFR Part 11 data integrity prerequisites when used with compliant software configurations.

Software & Data Management

While the base model features standalone microcontroller operation, optional digital instrumentation (UR5-LBV-I/II variants) provides full data logging capability: time-stamped temperature/vacuum profiles, cycle start/stop events, alarm history, and user authentication logs. All recorded data are exportable via USB or serial interface in CSV format for integration into LIMS or ELN platforms. The II-series color touchscreen controller supports password-protected user roles, electronic signature capture, and configurable audit trails—enabling alignment with FDA 21 CFR Part 11 and EU Annex 11 requirements where validated software deployment is mandated.

Applications

• Thermal stabilization and moisture removal from lithium-ion battery cathode/anode materials prior to cell assembly
• Outgassing of optical components, vacuum chamber subassemblies, and MEMS devices
• Controlled pyrolysis and binder burnout in ceramic and metallurgical powder processing
• Pre-bake treatment of PCBs and semiconductor packaging substrates to eliminate trapped volatiles
• Accelerated aging studies of polymer encapsulants and adhesive formulations under inert vacuum
• Residual solvent extraction from pharmaceutical intermediates and fine chemical syntheses
• Heat treatment of aerospace alloys requiring oxidation-free annealing at elevated temperatures

FAQ

What is the maximum operating temperature of the UR5-90LV?
The UR5-90LV is rated for continuous operation up to 500 °C, with thermal stability maintained across the full internal volume.
Does the system include vacuum pumping hardware?
Yes—standard configuration includes a rotary vane vacuum pump, carbon steel sound-dampening cabinet, circulating water unit, and either B-type or E-type vacuum pump protection module.
Can the chamber be purged with inert gas?
An optional inert gas inlet valve (e.g., N₂ or Ar) is available as an accessory, enabling controlled atmosphere operation during heating and cooling phases.
Is temperature calibration traceable to national standards?
All DRETOP high-temperature ovens ship with factory calibration certificates; third-party accredited calibration services (NIST-traceable) are available upon request.
How is vacuum level monitored and controlled?
Vacuum degree is displayed digitally (optional) or via analog gauge; process sequencing—including vacuum hold, heating ramp, and inert gas backfill—can be programmed on LBV-II controllers.