WIGGENS WB1800-EC & WB3000-EC Separated High-Torque / High-Speed Digital Stirrers

Overview

The WIGGENS WB1800-EC and WB3000-EC are industrial-grade, separated-axis digital stirrers engineered for demanding laboratory and pilot-scale mixing applications requiring either high torque at low-to-moderate speeds or high-speed dispersion across a broad viscosity spectrum. Unlike integrated benchtop stirrers, their modular architecture physically decouples the motor unit from the control electronics—enabling safe, flexible integration into fume hoods, biosafety cabinets, jacketed reactors, and automated process lines. Both models employ brushless DC (BLDC) motors paired with sealed planetary gearboxes, delivering exceptional thermal stability, mechanical longevity, and silent operation (<55 dB(A) at 1 m). The closed-loop speed regulation system continuously monitors back-EMF and adjusts drive current in real time to maintain setpoint accuracy (±1 rpm) despite load fluctuations—critical for reproducible shear history in polymer solutions, suspensions, emulsions, and non-Newtonian fluids.

Key Features

• Separated motor–controller design enhances safety and spatial flexibility: motor can be mounted remotely while controller remains outside containment zones.
• High-efficiency BLDC motors with integrated thermal protection and IP54-rated enclosures ensure reliable operation under continuous duty cycles.
• TFT touchscreen interface displays real-time rotational speed, instantaneous torque (N·cm), and motor load percentage; supports multi-language UI and user-defined presets.
• Dual analog I/O (0–10 V input/output, 0–20 mA input) enables seamless integration with PLCs, SCADA systems, or environmental chambers for synchronized process control.
• USB 2.0 port supports bidirectional communication with Windows-based WIGGENS StirControl software for data logging, script-driven protocols, and audit-trail-compliant reporting (aligned with GLP/GMP documentation requirements).
• Standard 3 m shielded cable; optional lengths (1.5 m, 6 m, 10 m) accommodate custom reactor configurations without signal degradation.
• Aluminum chassis provides passive thermal management—dissipating heat generated by high-torque operation while minimizing vibration transmission to sensitive instrumentation.

Sample Compatibility & Compliance

These stirrers are validated for use with viscous media up to 300,000 cP (WB1800-EC) and shear-thinning dispersions up to 3000 rpm (WB3000-EC), supporting applications ranging from yeast fermentation broths and ceramic slurries to lithium-ion battery electrode pastes and pharmaceutical suspensions. The motor units meet IEC 61000-6-3 (emission) and IEC 61000-6-4 (immunity) standards for electromagnetic compatibility. Full CE marking confirms conformity with the EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. RoHS 2011/65/EU compliance ensures absence of restricted hazardous substances. Optional validation packages support IQ/OQ documentation per ASTM E2500 and ISO 9001:2015 quality system requirements.

Software & Data Management

StirControl software (v3.2+) provides full remote operation via USB connection, including ramp-up/down profiles, torque-limiting safeguards, and time-stamped CSV export of speed/torque/history logs. All parameter changes are timestamped and user-annotated, satisfying FDA 21 CFR Part 11 requirements for electronic records when configured with password-protected administrator access and audit trail activation. Data files include metadata such as instrument ID, firmware version, ambient temperature (if external sensor connected), and calibration status flags—facilitating traceability in regulated environments.

Applications

• Chemical synthesis: Homogenization of heterogeneous catalytic reactions under inert atmosphere.
• Biotechnology: Agitation of high-density microbial cultures in stirred-tank bioreactors (STRs) without foaming or shear-induced cell lysis.
• Materials science: Dispersion of nanomaterials (e.g., graphene oxide, CNTs) in polymer matrices with controlled energy input.
• Pharmaceutical development: Wet granulation trials, suspension formulation, and dissolution testing per USP .
• Food R&D: Emulsion stabilization studies and viscosity profiling of plant-based dairy alternatives.

FAQ

What is the difference between WB1800-EC and WB3000-EC in terms of mechanical design?
The WB1800-EC features a longer motor housing (225 mm vs. 165 mm) to accommodate higher-ratio gearing optimized for torque generation; the WB3000-EC uses a compact high-RPM rotor assembly with lower gear reduction for maximum angular velocity.
Can these stirrers be used in explosion-proof environments?
Neither model carries ATEX or IECEx certification; however, the separated architecture allows motor placement in Class I Div 2 zones when paired with intrinsically safe barrier modules on analog I/O lines.
Is torque measurement calibrated traceably to national standards?
Yes—factory calibration includes NIST-traceable torque transducer verification at three load points (25%, 50%, 100% of max rated torque), with certificate provided upon request.
Does the controller support Modbus RTU or Ethernet/IP protocols?
Native support is limited to analog I/O and USB; third-party gateways (e.g., Moxa EDS-205A) may be deployed for Modbus TCP bridging, subject to validation.
What maintenance is required over the instrument’s service life?
Zero scheduled maintenance: BLDC motors and sealed planetary gearboxes are lubricated for life; only periodic inspection of shaft couplings and cleaning of ventilation grilles is recommended.