Japanese EYELA N-1200BV Rotary Evaporator

Overview

The Japanese EYELA N-1200BV Rotary Evaporator is a high-precision, laboratory-grade solvent removal system engineered for reproducible, scalable concentration and purification of heat-sensitive compounds under reduced pressure. Based on the fundamental principle of rotary evaporation—where reduced ambient pressure lowers the boiling point of solvents while controlled bath heating and continuous sample rotation maximize surface area and mass transfer—the N-1200BV delivers stable performance across diverse organic, pharmaceutical, and natural product workflows. Its design integrates vacuum compatibility down to ≤399.9 Pa, programmable rotational speed (5–280 rpm), and dual-mode temperature control for both water and oil baths—enabling safe processing of low-boiling solvents (e.g., diethyl ether, dichloromethane) as well as higher-boiling media (e.g., ethylene glycol, silicone oil). The instrument conforms to IEC 61010-1 safety standards for laboratory electrical equipment and incorporates fail-safes including thermal cutoff fuses and dry-run protection sensors—critical for unattended operation in GLP-compliant environments.

Key Features

• Automated vertical lift mechanism with 100 mm motorized stroke and 130 mm manual extension, enabling precise positioning for flask coupling and vacuum integrity verification.
• Dual-mode heating bath (WI-type) utilizing electromagnetic induction for rapid, uniform temperature ramping from RT+5°C to 180°C—optimized for both aqueous and high-temperature oil-based applications.
• V-shaped vertical double-coil condenser (0.146 m² cooling area) with enhanced geometry to eliminate backflow of condensed vapor into the sample flask—a critical design element for analytical purity and quantitative recovery.
• PTFE vacuum sealing components rated for long-term use at high rotational speeds and aggressive solvents (e.g., acetone, THF, chloroform), ensuring leak-free operation and extended service life.
• One-touch quick-connect fittings for external chillers or recirculating coolers, minimizing setup time and reducing risk of misalignment during repeated connections.
• F-series glassware with proprietary synthetic resin coating: provides shatter resistance without compromising optical clarity or chemical inertness—meets ASTM D1003 for haze transmission and ISO 8536-4 for pharmaceutical glass container requirements.

Sample Compatibility & Compliance

The N-1200BV accommodates standard JIS-ground-glass joints (29/38 for main flask and shaft; S35/20 for collection flask), ensuring interoperability with EYELA’s full ecosystem of evaporative accessories—including distillation traps, fractional heads, and inert gas inlet modules. It supports sample volumes from 50 mL to 3 L using compatible pear-shaped, round-bottom, or short-path flasks. All wetted surfaces are constructed from borosilicate 3.3 glass (DIN ISO 3585) and PTFE—resistant to hydrolysis, oxidation, and halogenated solvents. The system is fully compatible with USP analytical instrument qualification protocols and supports audit-ready documentation when integrated with validated LIMS or ELN platforms. Optional vacuum controllers (e.g., EYELA V-1000) enable automated pressure ramping per ISO 21748 guidelines for uncertainty estimation in evaporation rate calibration.

Software & Data Management

While the N-1200BV operates via standalone microprocessor-based ON-OFF temperature control with digital LED display and membrane-key input, it is designed for seamless integration into networked lab infrastructure. Analog output ports (0–5 V or 4–20 mA) allow real-time logging of bath temperature and rotation speed into third-party SCADA or LabArchives systems. When paired with EYELA’s optional V-1000 vacuum controller or CCA-1110 chiller interface module, users gain access to time-stamped event logs—including vacuum setpoint deviations, temperature overshoots, and lift actuation cycles—supporting 21 CFR Part 11 compliance through external electronic signature and audit trail configuration. Firmware updates are performed via USB, with version history traceable in device metadata.

Applications

This rotary evaporator is routinely deployed in QC laboratories for residual solvent analysis (per ICH Q3C), in R&D settings for parallel compound library concentration prior to LC-MS injection, and in pilot-scale natural product isolation where thermal degradation must be minimized (e.g., terpenoids, alkaloids, polyphenols). Its 180°C oil-bath capability enables efficient removal of high-boiling-point solvents such as DMF, DMSO, and NMP—common in polymer synthesis and peptide coupling reactions. In academic core facilities, the N-1200BV serves as a shared-resource instrument supporting undergraduate organic labs (e.g., extraction of caffeine from tea) and graduate-level methodology development requiring strict adherence to ISO/IEC 17025 method validation criteria.

FAQ

What vacuum level is required for optimal performance with low-boiling solvents like diethyl ether?
For diethyl ether (bp 34.6°C at 1 atm), operation at ≤133 Pa (1 mmHg) is recommended; the N-1200BV achieves ≤399.9 Pa, making it suitable when combined with appropriate cold trap and chiller support.
Can the N-1200BV be used with corrosive solvents such as concentrated HCl or bromine solutions?
No—while PTFE seals and borosilicate glass offer broad chemical resistance, halogen acids and elemental halogens are not compatible due to risk of glass etching and seal degradation; alternative materials (e.g., PFA-lined systems) are advised.
Is the WI-type dual bath field-serviceable for electromagnetic coil replacement?
Yes—electromagnetic induction coils are modular and accessible via rear-panel service doors; replacement requires certified EYELA Field Service Engineer certification per IEC 62366 usability validation.
Does the N-1200BV meet CE marking requirements for export to the European Economic Area?
Yes—it carries CE marking under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU), with technical documentation available upon request for customs clearance.
What is the recommended maintenance interval for PTFE vacuum seals under continuous 8-hour daily operation?
Under typical usage with non-aggressive solvents, PTFE seals should be inspected every 6 months and replaced annually—or immediately if visible compression set, cracking, or vacuum decay exceeds 10 Pa/min at 400 Pa operating pressure.