Zhengzhou Great Wall R-1050EX Large-Capacity Rotary Evaporator

Overview

The Zhengzhou Great Wall R-1050EX Large-Capacity Rotary Evaporator is an industrial-grade solvent removal and concentration system engineered for reproducible, scalable purification workflows in research laboratories, pilot-scale process development, and quality control environments. It operates on the principle of reduced-pressure distillation: a rotating evaporation flask increases surface area and promotes uniform thin-film formation under controlled thermal and vacuum conditions, enabling efficient and gentle separation of volatile solvents from heat-sensitive compounds. Designed for continuous operation at production-relevant throughput, the R-1050EX integrates high-power heating, dual-stage condensation, and robust mechanical construction to support demanding applications such as natural product extraction, polymer synthesis workup, pharmaceutical intermediate purification, and bulk solvent recovery.

Key Features

• 50 L evaporation capacity with Φ125 mm standardized flange interface—compatible with ISO-KF and DIN 28178 connections for modular integration into larger purification trains.
• Dual-stage vertical condenser system comprising a primary coil (1.150 m²) and auxiliary coil (0.607 m²), configured in triple-return geometry to maximize condensation efficiency across wide-boiling-point solvent mixtures (e.g., ethyl acetate/methanol/water azeotropes).
• Precision temperature control (±1.5°C) over a broad range (ambient +5°C to 95°C) via PID-regulated 6000 W immersion heater in a SUS304 stainless steel bath (Φ550 × 320 mm), ensuring thermal homogeneity and minimal gradient-induced decomposition.
• Variable-speed rotation (20–110 rpm) driven by a 370 W frequency-inverter motor, delivering stable torque even at low speeds for viscous or foaming samples.
• PTFE–fluorinated rubber dual-seal vacuum interface rated for long-term operation under ≤2 kPa/h pressure rise rate—and capable of reaching ≤100 Pa when paired with a high-efficiency diaphragm or oil-free scroll vacuum pump.
• Manual lift mechanism (0–180 mm travel) with precision-machined guide rails and locking brake, facilitating safe flask handling and alignment during batch loading/unloading.
• Explosion-proof control cabinet (IP54-rated, Class I, Division 1) compliant with IEC 60079-0 and GB 3836 standards—suitable for use in solvent-handling areas where flammable vapor accumulation is a concern.

Sample Compatibility & Compliance

The R-1050EX accommodates a broad spectrum of organic solvents (e.g., dichloromethane, acetone, toluene, THF), aqueous solutions, and moderately viscous reaction mixtures (up to ~500 cP). Its PTFE-wetted components—including the discharge valve core and sealing surfaces—ensure chemical resistance against strong acids, bases, and halogenated media. The system meets key regulatory expectations for laboratory equipment used in GLP-compliant environments: all electrical components conform to IEC 61000-6-2/6-4 EMC standards; thermal and rotational parameters are traceable via front-panel digital displays (no external calibration required); and mechanical design follows ISO 13850 for emergency stop functionality. While not FDA 21 CFR Part 11–certified out-of-the-box, audit-ready operational logs can be generated manually for GMP-aligned documentation protocols.

Software & Data Management

The R-1050EX features a dedicated digital control panel with independent LED displays for bath temperature, rotation speed, and real-time vacuum status. Though it does not include embedded data logging or PC connectivity as standard, its analog signal outputs (0–10 V or 4–20 mA) enable integration with third-party SCADA systems or programmable logic controllers (PLCs) for centralized monitoring. Users may record operational parameters—including start/stop timestamps, setpoint deviations, and observed evaporation rates—in standardized lab notebooks or electronic lab notebooks (ELNs) compliant with ALCOA+ principles. Optional RS485 Modbus RTU interface modules are available from authorized distributors for automated data capture in validated environments.

Applications

• Concentration of large-volume botanical extracts (e.g., >20 L crude ethanol tinctures) prior to chromatographic fractionation.
• Removal of residual solvents from API crystallization slurries under controlled temperature ramping to preserve polymorphic integrity.
• Recovery and reuse of high-purity ethyl acetate or heptane from kilogram-scale reaction workups—reducing consumables cost and waste disposal burden.
• Distillative drying of hygroscopic intermediates (e.g., metal-organic frameworks, lithium salt complexes) without thermal degradation.
• Parallel solvent exchange in polymer synthesis—e.g., replacing DMF with THF while maintaining solution viscosity below gelation threshold.

FAQ

What vacuum level can the R-1050EX achieve?
With its factory-standard vacuum seal and compatible high-capacity vacuum pump (e.g., GV-100 diaphragm pump), the system maintains ≤2 kPa/h pressure rise rate; when paired with a secondary vacuum trap and oil-free scroll pump, ultimate vacuum reaches ≤100 Pa.
Is the bath temperature calibrated to NIST-traceable standards?
The integrated PT100 sensor is factory-calibrated; users may perform field verification using a certified reference thermometer per ASTM E74 or ISO/IEC 17025 procedures.
Can the R-1050EX operate continuously for 8+ hours?
Yes—the 6300 W total power rating, thermally optimized condenser design, and reinforced bearing assembly support extended unattended operation under nominal load conditions.
Does the system comply with CE or UL safety directives?
It carries CCC certification for the Chinese market; CE marking requires additional conformity assessment by an EU-notified body for specific installation configurations.
What maintenance intervals are recommended for long-term reliability?
PTFE seals should be inspected every 200 operating hours; condenser coils require descaling with dilute citric acid solution every 500 hours; motor lubrication is not required (sealed-for-life bearings).