MakeWave MKX-J4A Parallel Microwave Drying and Evaporation System

Overview

The MakeWave MKX-J4A Parallel Microwave Drying and Evaporation System is an engineered platform for high-throughput, energy-efficient solvent removal, concentration, and thermal drying of multiple samples under atmospheric pressure. Unlike conventional hot-air ovens or vacuum rotary evaporators—where heat transfer relies on conduction or convection—the MKX-J4A utilizes 2450 MHz microwave energy to induce volumetric dielectric heating within polar solvents and moist matrices. This internal excitation enables rapid, uniform temperature rise across sample volumes, minimizing thermal gradients and reducing processing time by up to 90% compared to conventional methods. Designed for both R&D laboratories and pilot-scale process development, the system integrates a 90 L multimode cavity with a precision-controlled rotating turntable and active forced-air cooling, supporting reproducible, scalable drying protocols without vacuum infrastructure or complex condensation traps.

Key Features

• Parallel processing architecture: Configured for simultaneous treatment of four standard glass trays (187 × 140 × 78 mm), with symmetrical radial positioning on a φ510 mm PTFE-coated rotating turntable for field homogeneity.
• Continuous-wave 4000 W microwave source: Non-pulsed, infinitely variable power delivery ensures stable thermal input and eliminates overshoot during ramp-and-hold cycles.
• Integrated infrared pyrometry: Contactless, cycle-based surface temperature monitoring (0–150 °C range) with real-time feedback to the control loop.
• Dual-mode thermal management: Combines microwave heating with programmable forced-air quenching via top and side-mounted cooling ducts—enabling rapid cooldown (<60 s from 120 °C to 40 °C) for thermally sensitive compounds.
• Industrial-grade PLC control system: Touchscreen HMI with graphical trend display (time vs. temperature, power, and elapsed duration); supports up to 20 user-defined protocols with editable setpoints, ramps, holds, and safety limits.
• Compliance-focused safety architecture: Interlocked door mechanism with λ/4 choke suppression; verified microwave leakage <5 mW/cm² (tested per GB 10436 and aligned with IEC 61000-3-2 emission limits).

Sample Compatibility & Compliance

The MKX-J4A accommodates a broad range of sample formats—including aqueous solutions, organic extracts, polymer dispersions, and lyophilized intermediates—within borosilicate glass trays or custom-fit containers (subject to dielectric compatibility and dimensional constraints). Its atmospheric operation eliminates requirements for vacuum-rated seals or condenser assemblies, simplifying maintenance and reducing cross-contamination risk. The system conforms to ISO 9001:2015 quality management standards and meets electromagnetic compatibility (EMC) requirements for laboratory environments. While not certified for GMP production use out-of-the-box, its audit-ready data logging (timestamped, non-editable parameter records), password-protected program access, and hardware interlocks support alignment with GLP documentation practices and internal SOP validation.

Software & Data Management

Data acquisition and protocol execution are managed via an embedded industrial PLC with a 7-inch resistive touchscreen interface. All operational parameters—including microwave power (% of max), cavity temperature (IR-derived), elapsed time, and cooling activation status—are logged at 1-second intervals and stored internally (≥10,000 cycles). Export is supported via USB flash drive in CSV format for external analysis in MATLAB, Excel, or LIMS platforms. No cloud connectivity or remote access is implemented, preserving data sovereignty—a design choice aligned with institutional IT security policies common in pharmaceutical and academic labs. Audit trails include operator ID (manual entry), program name, start/stop timestamps, and deviation alerts (e.g., temperature excursion >±5 °C from setpoint).

Applications

• Rapid solvent removal from reaction mixtures prior to NMR or MS analysis
• High-throughput concentration of natural product extracts (e.g., botanical tinctures, fermentation broths)
• Drying of catalyst supports, MOFs, and mesoporous silica gels under controlled thermal profiles
• Accelerated aging studies requiring precise moisture reduction without oxidative degradation
• Preparative-scale evaporation for crystallization screening workflows (e.g., polymorph assessment)
• Training and method development for microwave-assisted sample preparation in QC/QA labs

FAQ

Is the MKX-J4A suitable for flammable solvents?

Yes—when operated under strict adherence to solvent-specific safety protocols (e.g., limiting initial volume, using spark-proof stir bars, and maintaining adequate ventilation), the system has been validated for ethanol, acetone, and ethyl acetate. Chlorinated or peroxide-forming solvents require prior risk assessment.

Can the system be integrated into a laboratory automation network?

No native Ethernet or RS-485 interface is provided; however, digital I/O terminals (start/stop, fault signal, ready status) are accessible via terminal block for third-party PLC synchronization.

What calibration documentation is supplied?

Factory calibration certificates for IR sensor linearity (NIST-traceable reference sources) and microwave power output (calorimetric verification) are included. Users must perform periodic verification per internal SOPs.

Does the system meet FDA 21 CFR Part 11 requirements?

It does not include electronic signature capability or audit trail encryption required for Part 11 compliance; however, raw CSV logs may be incorporated into validated downstream systems meeting those criteria.

Is service support available outside China?

MakeWave provides remote diagnostics and English-language technical documentation. Local authorized service partners are available in select EU and ASEAN markets; contact regional distributors for coverage details.