Jiubin Instruments JB-1000 High-Temperature Box-Type Muffle Furnace
| Brand | Jiubin Instruments |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | JB-1000 |
| Heating Configuration | Box-Type Muffle Furnace |
| Maximum Operating Temperature | 1000 °C |
| Rated Power | 2.5 kW |
| Compliance | CE-marked design per IEC 61000-6-3 (EMC) and IEC 61000-6-2 (Immunity) |
Overview
The Jiubin Instruments JB-1000 is a benchtop box-type muffle furnace engineered for precise, repeatable high-temperature thermal processing in academic, industrial, and quality control laboratories. It operates on resistive heating principles using high-purity Kanthal A1 alloy heating elements embedded within a multi-layer ceramic fiber insulation chamber—ensuring rapid heat-up, excellent thermal uniformity (±5 °C at 1000 °C across the working zone), and minimal energy loss. The furnace’s muffle architecture isolates samples from direct contact with heating elements and combustion byproducts, making it suitable for ashing, calcination, heat treatment, sintering, and residual moisture analysis where atmospheric purity and temperature stability are critical. Its compact footprint (W × D × H: 450 × 450 × 550 mm) and front-loading door with double-sealed ceramic gasket support safe, routine operation under ambient lab conditions.
Key Features
- Temperature range: Ambient to 1000 °C, digitally adjustable in 1 °C increments via integrated PID controller with auto-tuning capability
- High-efficiency insulation: 120 mm thick ceramic fiber board (density ≥128 kg/m³) yielding surface temperature <50 °C at maximum setpoint
- Dual-stage overtemperature protection: Independent mechanical limit switch (cut-off at 1050 °C) plus electronic safety thermostat
- Stainless steel interior chamber (304 grade) with reinforced corners and seamless welds for corrosion resistance and long-term dimensional stability
- Intuitive 3.5-inch TFT LCD interface with real-time temperature curve display, programmable ramp-soak profiles (up to 10 segments), and data logging via USB export
- Compliant with IEC 61010-1 Edition 3.0 for electrical safety in laboratory environments; RoHS-compliant materials throughout
Sample Compatibility & Compliance
The JB-1000 accommodates standard crucibles (alumina, quartz, or nickel-based), porcelain boats, and ceramic trays up to 150 mm × 150 mm × 80 mm in internal chamber dimensions. It supports ASTM E1529 (Standard Test Methods for Determining Ignition Characteristics of Plastics), ISO 1171 (Ash Content of Coal and Coke), and USP <231> (Heavy Metals Limit Tests) sample preparation protocols. All thermal cycles comply with GLP documentation requirements when paired with validated calibration records (traceable to NIST-certified reference thermocouples). Optional Class II biological safety cabinet integration is available for controlled-atmosphere applications requiring inert gas purging (N₂ or Ar).
Software & Data Management
Furnace operation and thermal profile management are supported via Jiubin’s optional PC-based LabFurnace Control Suite (v2.4), compatible with Windows 10/11 and macOS 12+. The software enables remote monitoring, automated report generation (PDF/CSV), and audit-trail-enabled event logging aligned with FDA 21 CFR Part 11 requirements—including user authentication, electronic signatures, and immutable record retention. Calibration history, maintenance logs, and deviation alerts are timestamped and exportable for internal QA review or external regulatory inspection (e.g., CNAS, ILAC-G18, or ISO/IEC 17025 accreditation audits).
Applications
- Residue and ash content determination in pharmaceutical excipients, food matrices, and polymer composites
- Pre-treatment of catalyst supports and ceramic precursors prior to XRD or BET surface area analysis
- Thermogravimetric sample conditioning for TGA-FTIR coupling experiments
- Controlled oxidation studies of metallic alloys and battery electrode materials
- Calibration verification of thermocouples and RTDs using fixed-point reference materials (e.g., Al, Zn, Sn ITS-90 points)
- ISO 5660 cone calorimeter specimen conditioning and post-test residue weighing
FAQ
What is the recommended calibration frequency for the JB-1000?
Annual calibration is advised for routine QC use; biannual calibration is required for GLP/GMP-regulated workflows. Calibration must include at least three points (200 °C, 600 °C, and 1000 °C) using a certified reference thermometer traceable to national standards.
Can the furnace operate under inert or reducing atmospheres?
Yes—optional flanged inlet/outlet ports (M12 thread) allow connection to mass flow controllers for continuous N₂, Ar, or forming gas (5% H₂/95% N₂) purging. Chamber pressure must remain at or slightly above ambient to prevent air ingress.
Is the JB-1000 suitable for overnight unattended operation?
It is rated for continuous operation up to 72 hours when configured with active cooling interlock and monitored via LabFurnace Control Suite. Unattended use requires prior risk assessment per institutional EH&S policy and installation of an independent temperature cut-off relay.
Does the unit include a certificate of conformance?
Each JB-1000 ships with a Factory Certificate of Conformance (CoC) detailing serial number, firmware version, and compliance statements against IEC 61010-1 and RoHS Directive 2011/65/EU. UKCA/CE Declaration of Conformity is available upon request.
