Labonce Labonce-6210ZK Vacuum Drying Oven with Analog Vacuum Gauge

Overview

The Labonce Labonce-6210ZK Vacuum Drying Oven is an engineered solution for controlled thermal dehydration under reduced pressure—specifically designed for heat-sensitive, oxidation-prone, or thermally labile materials including pharmaceutical intermediates, polymer precursors, biological extracts, and hygroscopic powders. Operating on the principle of lowering the boiling point of solvents via vacuum application, this oven enables drying at significantly lower temperatures than atmospheric ovens, thereby minimizing thermal degradation, decomposition, or unwanted side reactions. Its compliance with GB/T 29251–2012 (Chinese National Standard for Vacuum Drying Ovens) ensures structural integrity, thermal performance, and safety benchmarks aligned with laboratory-grade instrumentation requirements. The unit integrates a robust stainless steel chamber, precision microprocessor control, and a mechanically stable vacuum interface—making it suitable for routine QC workflows, R&D sample preparation, and stability testing in GLP-compliant environments.

Key Features

• Three independently adjustable stainless steel shelves (standard), optimized for uniform airflow distribution and load flexibility across 210 L chamber volume
• Mirror-finish 304 stainless steel interior chamber—resistant to corrosion, non-porous, and compliant with cleaning validation protocols
• Analog vacuum gauge with direct-reading scale (0–760 Torr / 0–101.3 kPa), providing immediate visual feedback of chamber vacuum level without reliance on digital sensor calibration
• Microprocessor-based temperature controller with 0.1 °C resolution, ±1 °C uniformity across working zone, and programmable timer up to 9999 minutes
• Double-layer toughened glass observation door—mechanically reinforced for pressure differential safety and optical clarity during real-time process monitoring
• One-piece molded silicone door seal with adjustable clamping mechanism—engineered to maintain ≤133 Pa (≤1 Torr) vacuum over extended cycles with minimal maintenance
• Dual-point electrical safety design: over-temperature cut-off and independent ground fault protection per IEC 61010-1

Sample Compatibility & Compliance

The Labonce-6210ZK accommodates heterogeneous sample forms—including powders, granules, thin-film coatings, lyophilized cakes, and solvent-wet filters—without requiring secondary containment. Its inert gas inlet option (N₂ or Ar) supports oxygen-sensitive drying protocols, enabling passivation of reactive metal oxides or stabilization of peroxide-forming organics. The chamber geometry and shelf spacing comply with ISO 17025-relevant spatial homogeneity guidelines for thermal validation. All materials contacting the chamber interior meet USP Class VI biocompatibility criteria for non-leaching surfaces. While not certified to UL/CSA or CE for export markets without regional adaptation, the unit’s mechanical and electrical architecture conforms to fundamental clauses of EN 61010-1 and GB 4793.1–2007 for laboratory electrical equipment safety.

Software & Data Management

This model operates as a standalone instrument with embedded firmware—no proprietary software required for basic operation. The digital controller logs time-stamped temperature setpoints and actual chamber readings internally (non-volatile memory, 100-cycle capacity), supporting manual audit trail reconstruction. For regulated environments, optional RS485 Modbus RTU output enables integration into SCADA or LIMS platforms for automated data capture. When paired with a validated external vacuum gauge and calibrated PT100 probe, the system supports 21 CFR Part 11–aligned electronic record generation when deployed with appropriate audit-trail-enabled host software. No cloud connectivity or remote access capabilities are built-in—preserving data sovereignty and network security in sensitive research facilities.

Applications

• Residual solvent removal from API batches prior to crystallization or tablet compression
• Drying of moisture-sensitive catalysts (e.g., Pd/C, Raney Ni) without surface oxidation
• Dehydration of gel-derived aerogels and MOF precursors under inert atmosphere
• Preparation of reference standards for gravimetric moisture analysis (ASTM E121–22)
• Stability-indicating studies per ICH Q1A(R3) under low-humidity, low-thermal-stress conditions
• Post-synthesis drying of conductive polymers (e.g., PEDOT:PSS films) where ambient oxygen causes dopant migration

FAQ

What vacuum level can the Labonce-6210ZK achieve, and how is it verified?
The chamber achieves ≤133 Pa (1 Torr) using a standard two-stage rotary vane vacuum pump (included). Verification requires a traceable Pirani or capacitance manometer; the analog gauge serves as an operational indicator, not a metrological standard.
Is the temperature uniformity validated across the full chamber volume?
Per GB/T 29251–2012, uniformity is specified as ±1 °C at 100 °C in the empty chamber. Users performing qualification should perform IQ/OQ per ASTM E2297–22 using nine-point mapping with NIST-traceable probes.
Can this oven be used for nitrogen-purged drying without modification?
Yes—when equipped with the optional inert gas inlet valve, continuous or batch purge modes can be implemented. Gas flow must be regulated externally (e.g., mass flow controller) to avoid pressure imbalance.
Are replacement shelves and door gaskets available as spare parts?
All consumables—including 304 stainless steel shelves (560 × 600 mm), silicone gaskets (custom-molded), and glass door assemblies—are stocked and supplied with OEM part numbers for traceability.
Does the unit support regulatory compliance for pharmaceutical manufacturing?
It meets foundational hardware requirements for GMP Annex 15 and EU GMP Chapter 3. Full qualification (IQ/OQ/PQ) and documentation packages are available upon request, including calibration certificates and material declarations.