Jianhu JH-VS Series Silent Energy-Efficient Vacuum Drying Oven

Overview

The Jianhu JH-VS Series Silent Energy-Efficient Vacuum Drying Oven is an engineered solution for low-temperature, oxygen-free sample dehydration in research laboratories and quality control environments. It operates on the fundamental principle of vacuum-assisted drying: by reducing internal pressure to ≤10 Pa, the boiling point of water and solvents is significantly lowered—enabling effective moisture removal at temperatures as low as 35 °C. This eliminates thermal degradation of thermolabile biomolecules (e.g., plasmid DNA, RNA, enzymes), prevents oxidative surface alteration in nanomaterials and battery electrode powders, and avoids structural collapse in hygroscopic or amorphous organic compounds. Unlike conventional forced-air ovens, the JH-VS Series maintains a sealed, inert environment throughout the drying cycle—ensuring sample integrity, measurement repeatability, and compliance with method-critical drying protocols in molecular biology, materials science, pharmaceutical development, and electrochemical research.

Key Features

• Ultra-low vacuum capability: Achieves and sustains ≤10 Pa via dual-stage oil-free vacuum pump (integrated or optional external), minimizing residual oxygen concentration to <100 ppm.
• PID-controlled precision heating: Stainless steel 304 chamber with uniform heat distribution; temperature stability maintained within ±0.5 °C across the operating range (RT +10 °C to 150 °C).
• Corrosion-resistant construction: Interior chamber, shelves, and door gasket fabricated from electropolished AISI 304 stainless steel—resistant to acids, alkalis, and condensate exposure during solvent drying.
• Silent operation: Acoustic noise level <52 dB(A) at 1 m distance—designed for shared lab spaces and ISO Class 5–7 cleanroom-adjacent installations.
• Energy-optimized thermal architecture: Insulated double-wall chamber with low-conductivity mineral wool and vacuum-jacketed door reduces power consumption by up to 38% versus legacy vacuum ovens (per IEC 62304-compliant efficiency testing).
• Intuitive HMI: 7-inch capacitive touchscreen with multilingual UI (English default), real-time vacuum/temperature logging, and programmable multi-step drying profiles.

Sample Compatibility & Compliance

The JH-VS Series accommodates standard laboratory containers—including borosilicate glass Petri dishes, centrifuge tubes (up to 50 mL), aluminum weighing boats, and custom sample trays—without compromising vacuum integrity. Its chamber geometry supports simultaneous drying of heterogeneous sample sets while maintaining thermal uniformity (±1.2 °C at 60 °C, per ASTM E2207 mapping). The system complies with ISO 17025 requirements for equipment qualification, supports IQ/OQ documentation packages, and enables GLP/GMP-aligned data traceability when paired with optional Ethernet-enabled data logger (21 CFR Part 11 audit trail capable). It meets EN 61000-6-3 (EMC) and EN 61010-1 (safety) standards, and is CE-marked for laboratory use in EEA markets.

Software & Data Management

The embedded control firmware records time-stamped vacuum pressure, chamber temperature, and elapsed cycle duration at user-defined intervals (1–60 sec resolution). Data exports in CSV format via USB port or Ethernet interface (Modbus TCP protocol). Optional PC-based software (Jianhu LabManager v3.2) provides real-time remote monitoring, alarm configuration (vacuum loss, over-temperature, timeout), and automated report generation compliant with ISO/IEC 17025 clause 7.7. All critical parameters are stored in non-volatile memory with tamper-evident timestamps—supporting retrospective analysis and regulatory review without reliance on external PCs.

Applications

• Molecular biology: Desiccation of nucleic acid preparations, enzyme-coated microplates, and lyophilized reagents without activity loss.
• Materials science: Dehydration of MOFs, perovskite precursors, and lithium-ion cathode slurries under inert conditions to preserve stoichiometry and crystallinity.
• Pharmaceutical QA/QC: Residual solvent removal from active pharmaceutical ingredients (APIs) per ICH Q5C guidelines; moisture content validation prior to tablet compression.
• Electronics R&D: Baking of flexible substrates and printed circuit boards to eliminate interlayer moisture before encapsulation.
• Food & agriculture analytics: Low-temperature drying of plant tissue samples for elemental analysis (ICP-MS), preventing volatile compound loss and chloride migration.

FAQ

What vacuum level does the JH-VS Series achieve—and how is it verified?
The system reaches ≤10 Pa using its integrated dual-stage dry scroll pump. Vacuum performance is factory-verified with a calibrated Pirani/capacitance manometer traceable to NIST standards; certificate included with each unit.
Can the oven be used for solvent removal beyond water—e.g., ethanol or acetone?
Yes—compatible with low-boiling-point organic solvents when operated below their autoignition temperature and with appropriate exhaust management. Consult solvent compatibility chart (provided in manual) for maximum safe operating temperature per compound.
Is third-party calibration support available?
Jianhu partners with ISO/IEC 17025-accredited calibration labs globally; on-site or return-to-factory services include temperature uniformity mapping and vacuum sensor recalibration.
How is chamber cleanliness maintained between runs?
The electropolished 304SS interior allows wipe-down with 70% ethanol or dilute nitric acid (≤10%). No porous coatings or adhesives are used—eliminating microbial harborage points and enabling validated cleaning procedures per EU GMP Annex 1.
Does the system support integration into a centralized lab automation network?
Via optional RS485/Modbus RTU or Ethernet/IP interface, the JH-VS Series can be controlled and monitored through LIMS or SCADA platforms—enabling batch-level parameter logging and event-triggered notifications.