Shanghai Youyi GZF-6150A 150L High-Temperature Vacuum Drying Oven (400 °C)

Overview

The Shanghai Youyi GZF-6150A is a 150-liter high-temperature vacuum drying oven engineered for precise thermal processing under reduced-pressure environments. It operates on the fundamental principle of vacuum-assisted thermal desorption: by lowering ambient pressure inside the chamber, the boiling points of solvents and volatile residues are significantly depressed—enabling effective moisture and solvent removal from heat-sensitive, oxidation-prone, or structurally complex samples at temperatures substantially below their atmospheric decomposition thresholds. Designed for continuous-duty laboratory and pilot-scale applications, the GZF-6150A maintains stable thermal conditions across its full 400 °C operating range (RT+10 °C to 400 °C), making it suitable for advanced material conditioning, pre-sterilization of glassware, residual solvent extraction in pharmaceutical intermediates, and inert-atmosphere annealing of ceramic precursors.

Key Features

• Robust 304 stainless steel interior chamber (500 × 500 × 600 mm) with seamless welds and electropolished finish for corrosion resistance, cleanability, and long-term vacuum integrity.
• High-efficiency electric heating system with aluminum alloy heat-distribution plates—engineered for rapid thermal response and minimal thermal gradient across the working volume.
• PID-based microprocessor temperature controller with 0.1 °C resolution, ±1 °C uniformity, and programmable ramp/soak profiles (optional 5-segment programming module available).
• Integrated power-failure recovery logic: automatically restores previously set parameters—including temperature setpoint, timer status, and vacuum hold state—upon grid resumption.
• Custom-formulated silicone door gasket with adjustable compression mechanism ensures reliable sealing down to ≤133 Pa; validated via helium leak testing during factory QA.
• Front-access design with reinforced cold-rolled steel outer casing and electrostatic epoxy-polyester coating for mechanical durability and chemical resistance.
• Real-time multi-parameter display on 4.3″ backlit TFT screen: chamber temperature, setpoint, elapsed time, remaining time, and vacuum level (when equipped with optional digital vacuum controller).

Sample Compatibility & Compliance

The GZF-6150A accommodates heterogeneous sample types—including lyophilized biomaterials, metal-organic frameworks (MOFs), battery electrode slurries, polymer composites, and sterilizable labware—without risk of oxidative degradation or particle displacement. Its vacuum environment eliminates convective air currents, preventing dispersion of fine powders and preserving sample morphology. The chamber’s inert-gas compatibility (via optional inlet valve and mass flow controller) supports nitrogen or argon purging protocols aligned with ISO 14644-1 cleanroom practices and USP sterile processing guidelines. While not certified to UL/CSA or CE for standalone safety compliance, the unit meets IEC 61010-1:2010 requirements for laboratory electrical equipment when installed per manufacturer-specified ventilation and grounding procedures. Documentation packages support GLP/GMP audit readiness, including calibration certificates for temperature sensors (traceable to NIM, China) and vacuum gauge verification reports.

Software & Data Management

The standard control architecture provides local operation only, with no network connectivity or remote monitoring capability. All operational data—including temperature logs, timer events, and alarm records—are stored internally in non-volatile memory and accessible via on-screen history review (up to 100 cycles). For regulated environments requiring electronic record integrity, the optional programmable controller adds 21 CFR Part 11–compliant features: user-level access control, electronic signatures, and immutable audit trails exportable via USB interface. Raw temperature and vacuum data can be exported in CSV format for integration into LIMS or statistical process control (SPC) platforms. Calibration parameters are write-protected and require administrator-level password authentication for modification.

Applications

• Drying of thermolabile APIs and excipients without Maillard reactions or racemization.
• Post-synthesis solvent removal from nanoparticle dispersions and sol-gel derived ceramics.
• Residual moisture analysis preparation for Karl Fischer titration (ASTM E203).
• Inert-atmosphere pre-baking of lithium-ion battery cathode materials prior to sintering.
• Dehydration of botanical extracts while preserving volatile terpenoid profiles.
• Conditioning of humidity-sensitive reference standards (e.g., NIST SRM 2890) in metrology labs.
• Pre-sterilization of volumetric glassware and filtration assemblies under vacuum-assisted steam-free protocols.

FAQ

What is the maximum allowable operating temperature for the GZF-6150A model?

The GZF-6150A is rated for continuous operation up to 400 °C. The GZF-6150B variant extends this to 500 °C but requires upgraded insulation and thermocouple grade.
Is the vacuum pump included with the base configuration?

No. A vacuum pump is optional and must be selected separately (2 L/min or 4 L/min oil-lubricated rotary vane models recommended). The chamber includes a standardized KF-25 vacuum flange.
Can the oven be operated under positive inert gas pressure?

No—it is designed exclusively for vacuum or atmospheric-pressure inert gas purging. Positive overpressure operation is not supported and voids warranty.
How is temperature uniformity validated across the chamber volume?

Uniformity is verified per ISO 17025-accredited internal procedure using nine calibrated PT100 probes placed at standardized locations (center, six face centers, and two corners); results are documented in the出厂 calibration report.
Does the unit support automated vacuum regulation during multi-step drying protocols?

Yes—when equipped with the optional digital vacuum controller, users can define target pressure setpoints per segment and enable auto-compensation via solenoid-controlled inert gas bleed.