The Great Wall R-1010EX Explosion-Proof Rotary Evaporator

Overview

The Great Wall R-1010EX Explosion-Proof Rotary Evaporator is an engineered solution for safe, scalable solvent removal and compound purification under reduced pressure in hazardous environments. Designed in strict compliance with IEC 60079-0 and GB 3836.1–2010 standards for explosion-proof electrical equipment, the system integrates a certified Ex d IIB T4-rated control cabinet with intrinsically safe signal routing, enabling operation in Class I, Division 1 (Zone 1) areas where flammable vapors—such as acetone, ethanol, diethyl ether, or chlorinated solvents—may be present during rotary evaporation. Its core principle relies on simultaneous rotation, controlled heating, and vacuum-assisted phase transition: the 10 L rotating flask spins at precisely regulated speeds (20–130 rpm via frequency-controlled motor), generating uniform thin-film formation across the large-diameter (Φ95 mm) evaporation surface. Heat transfer occurs via a SUS304 water/oil bath (ambient +5 °C to 95 °C, ±1.5 °C stability), while vacuum—achievable down to ≤100 Pa using an external compatible vacuum source—is maintained through a dual-seal system combining PTFE static gaskets and fluorocarbon (FKM) dynamic O-rings. This architecture ensures long-term leak integrity and minimizes solvent ingress into drive mechanisms.

Key Features

• Explosion-proof certification: Full system conformity to IEC 60079-1 (flameproof enclosure “d”) and GB 3836.2, with separate Ex d IIB T4-rated electrical cabinet (58 kg) physically isolated from the main unit.
• High-capacity evaporation platform: 10 L borosilicate glass rotating flask with Φ95 mm standard taper interface and 5 L collection flask—optimized for batch throughput in QC labs, pilot-scale synthesis, and pharmaceutical intermediate isolation.
• Dual-stage condensation: Vertical condenser assembly featuring primary (0.390 m²) and secondary (0.253 m²) cooling surfaces with triple-pass reflux geometry—enhancing condensate recovery efficiency for low-boiling solvents (e.g., dichloromethane, pentane) even at high vapor loads.
• Precision thermal and rotational control: Digital PID temperature regulation (±1.5 °C accuracy) and 0.1 rpm-resolution variable-frequency drive—enabling reproducible film thickness and evaporation kinetics across diverse solvent systems.
• Robust mechanical design: Manual vertical lift mechanism (0–160 mm travel) with locking brake; SUS304 bath vessel (Φ350 × 220 mm); castor-mounted base with locking wheels for lab reconfiguration.
• Integrated safety architecture: Triple-layer protection including overcurrent cutoff, earth leakage detection, and independent overtemperature shutdown—fully documented for GLP-compliant audit trails.

Sample Compatibility & Compliance

The R-1010EX accommodates a broad range of organic solvents, aqueous mixtures, and heat-sensitive crude extracts without degradation. Its PTFE/FKM sealing system resists swelling or creep when exposed to halogenated, aromatic, or polar aprotic solvents—critical for extended operational cycles in API purification or natural product isolation. The apparatus meets ISO 9001 manufacturing quality requirements and supports regulatory workflows aligned with FDA 21 CFR Part 11 (when paired with validated data acquisition software), EU GMP Annex 11, and USP Analytical Instrument Qualification. All wetted parts comply with USP Class VI biocompatibility standards. Vacuum integrity is verified per ASTM E477 (leak rate ≤2 kPa/h under static hold test).

Software & Data Management

While the R-1010EX operates via standalone digital controls (LED display for rpm and bath temperature), it features analog/digital I/O ports (0–10 V, 4–20 mA) for integration with third-party SCADA systems or LIMS platforms. Optional RS485 Modbus RTU communication enables remote parameter logging, alarm event timestamping, and electronic batch record generation—supporting 21 CFR Part 11-compliant electronic signatures when deployed with qualified validation packages. Audit trail functionality records operator ID, setpoint changes, fault codes, and runtime duration—retained for ≥30 days in non-volatile memory.

Applications

• Pharmaceutical process development: Solvent exchange in peptide synthesis, residual solvent removal from active pharmaceutical ingredients (APIs) prior to lyophilization.
• Agrochemical formulation: Concentration of pesticide emulsifiable concentrates (EC) and suspension concentrates (SC) under inert atmosphere.
• Academic research: Isolation of thermolabile natural products (e.g., terpenoids, alkaloids) from plant extracts using low-temperature, high-vacuum protocols.
• Materials science: Purification of polymer precursors and monomers; removal of unreacted initiators from step-growth condensation reactions.
• Environmental testing labs: Pre-concentration of volatile organic compounds (VOCs) from aqueous environmental samples per EPA Method 502.2 and ISO 15681-2.

FAQ

What explosion-proof certification does the R-1010EX hold?
The system complies with IEC 60079-1 (flameproof “d” enclosure) and GB 3836.2–2010 for Class IIB, T4 temperature class—suitable for Group IIB gases (e.g., ethylene, acetone) with maximum surface temperature ≤135 °C.
Can the R-1010EX be integrated into an automated purification workflow?
Yes—via its Modbus RTU interface and analog I/O, it supports synchronization with programmable logic controllers (PLCs), vacuum controllers, and chilled recirculators for fully sequenced evaporation cycles.
What is the minimum achievable pressure, and which vacuum pumps are recommended?
With a certified two-stage oil-sealed rotary vane pump (e.g., Welch 1402 or KNF NRP series), ultimate vacuum reaches ≤100 Pa; dry scroll pumps (e.g., Agilent IDP-10) are recommended for solvent compatibility and oil-free operation.
Is the condenser cooled by circulating water only, or can it support glycol-based coolant?
The dual condenser accepts both water (5–30 °C) and water-glycol mixtures (up to 30% v/v) via standard 10 mm quick-connect fittings—enabling sub-zero condensation temperatures for highly volatile solvents.
Does the system include documentation for IQ/OQ/PQ qualification?
Factory-supplied documentation includes calibration certificates for temperature and rotation sensors, material traceability reports, and a URS-aligned validation protocol template compliant with ASTM E2500 and GAMP5 guidelines.