Zhengxin K-PS Series Magnetic Coupling Drive Mechanical Stirred Reactor

Overview

The Zhengxin K-PS Series Magnetic Coupling Drive Mechanical Stirred Reactor is a precision-engineered laboratory-scale pressure reaction system designed for controlled synthesis, catalytic studies, hydrogenation, polymerization, and high-temperature/high-pressure chemical transformations. It operates on the principle of hermetic torque transmission via magnetic coupling—eliminating dynamic shaft seals and ensuring zero leakage under vacuum or elevated pressure conditions. This architecture meets stringent requirements for handling toxic, flammable, oxygen-sensitive, or highly corrosive reagents while maintaining full process integrity. The reactor’s modular design supports rapid vessel disassembly, enabling efficient cleaning, inspection, and liner replacement—critical for multi-step reaction workflows and cross-contamination prevention in regulated R&D environments.

Key Features

• Hermetically sealed magnetic drive system using rare-earth NdFeB magnets, rated for continuous operation up to 70 MPa and 600 °C—ensuring long-term reliability without seal wear or lubricant degradation.
• Vessel construction from ASTM A240 316L stainless steel (standard), with optional upgrade paths to ASTM B564 Hastelloy C-276, ASTM B265 Grade 2 titanium, or ASTM B536 zirconium for extreme corrosion resistance.
• Modular electric heating mantle with embedded NiCr alloy heating elements and thermal insulation; delivers uniform axial/radial temperature profiles with ±1 °C stability over full operating range.
• Brushless DC motor with closed-loop speed control (0–1500 rpm), integrated tachometer feedback, and programmable forward/reverse sequencing for emulsion stabilization or solid suspension enhancement.
• LCD-based PID temperature controller compliant with IEC 61508 functional safety principles; includes auto-tuning, ramp-soak programming, and dual timer modes (hold-time for isothermal holds, run-time for total cycle duration).
• Full-vessel detachability: heater jacket, vessel body, and top flange are mechanically uncoupled via standardized clamp joints—reducing maintenance downtime and supporting GLP-compliant documentation of component history.
• ASME BPVC Section VIII Div. 1–designed pressure boundary components, including rupture disc (set at 110% MAWP) and spring-loaded safety valve (set at 105% MAWP) with third-party certified calibration reports available upon request.

Sample Compatibility & Compliance

The K-PS reactor accommodates heterogeneous, homogeneous, and gas–liquid–solid multiphase systems across organic, inorganic, organometallic, and pharmaceutical synthesis. Standard configurations support reactions involving H₂, CO, NH₃, Cl₂, and anhydrous HF under inert or reactive atmospheres. Liner options—including ASTM D4894 PTFE, ASTM D3950 PPL, fused quartz (per ASTM E1527), and electropolished stainless steel—enable compatibility with strong acids (e.g., aqua regia), alkalis (e.g., molten KOH), and halogenated solvents. All pressure-bearing components conform to PED 2014/68/EU Category IV requirements. Documentation packages include material test reports (MTRs), non-destructive examination (NDE) records (RT/UT), and traceable calibration certificates for pressure and temperature instrumentation—supporting FDA 21 CFR Part 11 audit readiness when paired with validated data acquisition software.

Software & Data Management

While the base unit operates via standalone PID controller, optional integration with Zhengxin’s ZxControl™ LabSuite v3.2 enables real-time logging of pressure, temperature, stirring speed, and elapsed time at user-defined intervals (100 ms–60 s resolution). Data exports comply with ASTM E2500-22 for raw instrument data archiving and support CSV, XML, and PDF report generation with digital signatures. The software architecture implements role-based access control (RBAC), electronic audit trails per ALCOA+ principles, and encrypted local storage—facilitating compliance with ISO/IEC 17025:2017 clause 7.7 and EU GMP Annex 11 for computerized system validation.

Applications

• Catalytic hydrogenation of unsaturated compounds under controlled H₂ partial pressures (1–5 MPa) and temperatures (80–200 °C).
• Solvothermal synthesis of MOFs and nanomaterials using DMF, ethanol, or water at subcritical conditions (200–350 °C, 10–25 MPa).
• High-pressure oxidation kinetics studies with O₂ or air, including autoxidation inhibition testing per ASTM D942.
• Supercritical fluid processing (e.g., scCO₂ extraction or impregnation) with precise density tuning via pressure–temperature coordination.
• Pharmaceutical intermediate synthesis requiring strict exclusion of atmospheric moisture and oxygen—enabled by repeated vacuum/purge cycles using integrated needle valves.
• Corrosion testing of alloys in simulated geothermal brines (pH 2–12, Cl⁻ up to 200,000 ppm) per NACE TM0169.

FAQ

What certifications accompany the K-PS reactor for international shipment?
Each unit ships with CE marking (PED 2014/68/EU, EMC 2014/30/EU), RoHS 2011/65/EU declaration, and factory-issued pressure equipment conformity statement. ASME U-Stamp certification is available as a custom option.
Can the reactor be retrofitted with a mass flow controller for gas dosing?
Yes—standard 1/4″ Swagelok® ports accept commercial MFCs (e.g., Brooks Instrument SLA series) with compatible pressure rating; Zhengxin provides mounting brackets and gas-tight feedthrough adapters.
Is remote monitoring supported out-of-the-box?
The base model lacks Ethernet/WiFi; however, the optional ZxControl™ LabSuite includes RS485 Modbus RTU interface and optional WiFi-to-Modbus gateway for cloud-connected lab infrastructure.
What is the maximum allowable working pressure (MAWP) for the 1000 mL configuration?
All K-PS vessels are rated to 70 MPa MAWP regardless of volume; actual operational limits depend on selected liner material and temperature—consult the included pressure–temperature rating chart per ASME B16.5.
How is traceability maintained during preventive maintenance?
Vessel serial numbers, MTRs, NDE reports, and calibration logs are archived in QR-coded physical labels affixed to each major component—scannable via Zhengxin’s AssetTrack mobile app for automated service history synchronization.