Labonce Labonce-240JM Precision Forced-Air Drying Oven (200 °C)

Overview

The Labonce Labonce-240JM Precision Forced-Air Drying Oven is an industrial-grade, convection-heated thermal chamber engineered for consistent, repeatable heat treatment of materials, components, and samples in research laboratories, quality control environments, and manufacturing R&D facilities. Utilizing a forced-air circulation system with optimized airflow dynamics, the oven maintains precise thermal stability across its 240-liter working volume—critical for applications requiring uniform thermal exposure without localized hot or cold zones. Designed for operational reliability under continuous use, it supports standard thermal protocols including moisture removal, pre-baking of substrates, curing of coatings, aging tests per ASTM D5422 and ISO 2812-3, and residual solvent evaporation in polymer and electronics manufacturing. Its maximum operating temperature of 200 °C aligns with common material qualification thresholds for plastics, adhesives, PCB laminates, and pharmaceutical excipients.

Key Features

• Forced-air convection system with rear-mounted centrifugal blower and multi-directional air ducting ensures <±3.0 °C temperature uniformity throughout the chamber at ≤200 °C.
• Robust dual-layer construction: exterior cabinet of cold-rolled steel with epoxy-polyester powder coating; interior chamber fabricated from 1.2 mm thick AISI 304 stainless steel for corrosion resistance and easy decontamination.
• Digital PID temperature controller with real-time display, adjustable ramp/soak profiles, and manual tuning capability for process reproducibility.
• Dual safety architecture: primary thermostat + independent mechanical over-temperature cut-off switch (settable up to 220 °C), compliant with IEC 61010-1 requirements for laboratory equipment safety.
• Energy-efficient insulation: 100 mm thick high-density mineral fiber insulation on all six surfaces minimizes thermal loss and improves ambient temperature stability during extended operation.
• Modular shelving system: two adjustable stainless steel shelves included; up to nine additional shelves (part no. LAB-SH-SS-550) can be installed to optimize vertical sample distribution.

Sample Compatibility & Compliance

The Labonce-240JM accommodates a broad range of sample types—including metal test coupons, ceramic wafers, printed circuit boards, polymer films, glassware, and bulk powder containers—without risk of cross-contamination or surface oxidation under controlled airflow. Its chamber geometry (550×550×750 mm internal) permits placement of ISO-standard environmental test trays (e.g., ISO 17025-compliant calibration plates) and ASTM E145-compliant reference blocks. The unit meets general safety requirements outlined in IEC 61010-1:2010 and is suitable for use in GLP-regulated environments when integrated with documented calibration and maintenance procedures. While not inherently 21 CFR Part 11 compliant, audit-ready data logging (via optional RS485 interface and Labonce DataLink software) supports traceability for GMP-aligned drying validation protocols.

Software & Data Management

The Labonce-240JM operates as a standalone instrument with local digital control, but supports external monitoring and data capture via optional accessories. An RS485 serial interface enables integration with SCADA systems or third-party data acquisition platforms using Modbus RTU protocol. When paired with Labonce DataLink v3.2 (sold separately), users can configure automated temperature logging at user-defined intervals (1–600 seconds), generate CSV-formatted time-stamped reports, and export calibration certificates compliant with ISO/IEC 17025 documentation standards. All logged data includes timestamp, setpoint, actual chamber temperature, and alarm status flags—enabling full retrospective analysis for internal audits or regulatory submissions.

Applications

• Pre-drying of analytical samples prior to gravimetric moisture content determination (ASTM D2231, USP <921>)
• Thermal conditioning of electronic components before solderability testing (IPC-J-STD-002)
• Curing of conformal coatings and encapsulants in aerospace and automotive electronics
• Aging studies of elastomers and thermoplastics per ISO 188 and ASTM D573
• Bake-out of vacuum chamber components and optical mounts in cleanroom assembly
• Stabilization of reference standards and calibration artifacts in metrology labs

FAQ

What is the recommended maximum continuous operating temperature?
The Labonce-240JM is rated for continuous operation up to 200 °C. For extended service life and optimal sensor longevity, sustained use above 190 °C is discouraged unless validated for specific process requirements.
Can this oven be used for sterilization or microbiological applications?
No. This model is not designed for steam sterilization, biological decontamination, or ISO 14644 cleanroom-certified operation. It lacks HEPA filtration, humidity control, and validated lethality cycles required for such applications.
Is NIST-traceable calibration available?
Yes. Labonce offers factory calibration services with NIST-traceable certificates (per ISO/IEC 17025) for both temperature uniformity and controller accuracy, delivered with each unit upon request.
How often should preventive maintenance be performed?
We recommend quarterly inspection of the blower motor, air filter (if equipped), door gasket integrity, and thermocouple mounting; annual recalibration is advised for regulated environments.
Does the oven support programmable ramp-and-soak cycles?
The base controller supports one-step ramp-to-setpoint operation. Multi-segment programming requires the optional Labonce Advanced Controller Module (ACM-240JM), which adds up to 32 programmable steps with dwell timing and event-triggered outputs.