DRETOP XZ-141-III Triple-Stack Integrated Vacuum Drying Oven

Overview

The DRETOP XZ-141-III Triple-Stack Integrated Vacuum Drying Oven is engineered for high-throughput, thermally sensitive drying and heat treatment under controlled low-pressure environments. Utilizing vacuum-assisted dehydration—where ambient air is evacuated via integrated or externally coupled rotary vane or corrosion-resistant diaphragm pumps—the system reduces the partial pressure of water vapor, thereby lowering the boiling point of solvents and moisture without thermal degradation. This principle enables rapid, residue-free drying of hygroscopic, oxygen-sensitive, or thermolabile materials—including lithium-ion battery electrode slurries, semiconductor wafers post-cleaning, pharmaceutical active ingredients (APIs), and biological tissue samples—while suppressing oxidation, hydrolysis, and volatile loss. The triple-chamber vertical stack architecture delivers 141 L total nominal capacity (47 L per chamber), maintaining independent thermal zoning capability across stacked units while sharing a common vacuum manifold and control interface—optimized for laboratories requiring parallel batch processing with consistent thermal and vacuum profiles.

Key Features

• Triple-stack monolithic design with structural rigidity and vibration-dampened mounting—minimizes inter-chamber thermal crosstalk and ensures long-term vacuum integrity.
• External four-side radiant heating system using embedded stainless steel-sheathed heating elements—eliminates internal hot spots, prevents vacuum arcing or carbon deposition, and supports uniform thermal distribution (±1 °C at 150 °C).
• Microprocessor-based PID temperature controller with programmable ramp-soak profiles, 9999-minute timer, over-temperature alarm & cut-off, and automatic data retention during power interruption.
• 304 stainless steel interior chamber with seamless welded corners, reinforced double-layer tempered glass observation window, and drawer-type perforated stainless steel trays (height-adjustable and removable for cleaning).
• Dual-stage mechanical door lock with zinc alloy handle and compression-sealed silicone gasket—achieves and sustains ≤133 Pa vacuum level with verified leak rate <1.0 × 10⁻² Pa·m³/s per chamber.
• Electrostatically coated carbon steel outer casing, fiberglass insulation between shell and chamber, and comprehensive safety suite including short-circuit, overcurrent, ground-fault, and overheat protection.

Sample Compatibility & Compliance

The XZ-141-III accommodates diverse sample formats: powders, thin-film coatings, granular composites, PCB assemblies, ceramic green bodies, and solvent-laden gel matrices—all without particle dispersion or surface oxidation. Its vacuum environment (≤133 Pa) falls within the medium-vacuum regime per ISO 27893:2018, enabling reliable moisture removal from porous media while preserving microstructural integrity. The system complies with IEC 61010-1 for electrical safety and meets essential requirements for GLP-compliant operation when configured with optional RS485 Modbus RTU interface and audit-trail-capable color touchscreen controller (P-series upgrade). For regulated pharmaceutical applications, optional inert gas purging (N₂ or Ar) via mass-flow-controlled inlet valve supports USP sterile drying protocols and OSHA PEL-compliant solvent recovery workflows.

Software & Data Management

Standard configuration includes an industrial-grade LCD controller with real-time display of chamber temperature, setpoint, elapsed time, and status codes. Optional upgrades include the P-series programmable logic controller (PLC) with Ethernet/IP connectivity or the VT-series 7-inch color touchscreen HMI supporting up to 10 user-defined drying cycles, event logging (timestamped temperature/vacuum traces), password-protected parameter editing, and export via USB 2.0 (CSV format). When integrated with laboratory information management systems (LIMS), the RS485 interface enables automated data capture compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, operator ID tagging, and immutable audit trails for QA/QC documentation.

Applications

• Electronics manufacturing: Pre-bake of OLED encapsulation layers, desiccation of MEMS packaging substrates, and post-plating moisture removal from flex circuits.
• Battery R&D: Solvent evaporation from cathode/anode slurry-coated foils; moisture control in solid-state electrolyte synthesis.
• Pharmaceutical development: Lyophilization pre-drying of monoclonal antibodies, residual solvent reduction in tablet granules per ICH Q5C guidelines.
• Materials science: Thermal aging of polymer nanocomposites under inert vacuum, outgassing characterization of aerospace adhesives.
• Academic research: Controlled pyrolysis of MOFs, vacuum annealing of 2D transition metal dichalcogenides, and low-temperature dehydration of cryo-sectioned histological specimens.

FAQ

What vacuum level is achievable, and how is it measured?
The system achieves ≤133 Pa (1 Torr) using a standard 20 m³/h rotary vane pump (V-series, optional); vacuum level is monitored via analog Bourdon-tube gauge or digital capacitance manometer (VD-series upgrade).
Can chambers operate independently—or must all three run simultaneously?
All three chambers share a single vacuum manifold and temperature control loop; they operate synchronously but support individual tray loading/unloading without breaking vacuum in adjacent units.
Is the XZ-141-III suitable for GMP production environments?
Yes—when equipped with VT-series touchscreen, RS485 interface, and optional 21 CFR Part 11 software package, it supports validated process execution, electronic record retention, and full traceability per Annex 11 requirements.
What maintenance is required for long-term vacuum integrity?
Quarterly inspection of door gaskets, annual calibration of temperature sensors (per ISO/IEC 17025), and biannual oil change for rotary vane pumps—documented in included maintenance log template.
Are custom chamber dimensions or higher vacuum options available?
Yes—DRETOP offers OEM engineering services for non-standard internal geometries, KF25/KF40 vacuum flanges, cold trap integration, and high-vacuum configurations down to 10⁻¹ Pa using dual-stage pumping systems.