WIGGENS WH-610D Six-Position Digital Magnetic Stirrer
| Brand | WIGGENS |
|---|---|
| Origin | Germany |
| Model | WH-610D |
| Stirring Positions | 6 |
| Speed Range | 150–1500 rpm |
| Max. Stirring Volume per Position | 2000 mL |
| Display | LED |
| Drive Type | Brushless DC Motor |
| Work Surface | Epoxy-coated Stainless Steel |
| PTFE Protective Mat Compatibility | Yes (Optional, Order Code: 400216-PTFE) |
Overview
The WIGGENS WH-610D is a six-position digital magnetic stirrer engineered for precision, stability, and reproducibility in routine laboratory workflows. Designed around closed-loop speed control architecture, it employs real-time viscosity feedback to dynamically adjust motor output power—ensuring consistent rotational speed across varying sample viscosities without manual intervention. Unlike open-loop analog stirrers, this model utilizes a microprocessor-controlled brushless DC motor system, delivering high torque at low speeds and maintaining stable operation even with viscous or dense solutions (e.g., polymer solutions, cell culture media, or suspension-based reagents). Its modular platform supports simultaneous independent control of all six stirring positions—each with dedicated speed adjustment and real-time RPM readout—making it suitable for parallel experiment setups, method development, and comparative studies under identical thermal and mechanical conditions.
Key Features
- Six independent stirring stations with fully isolated speed control and individual LED displays showing both setpoint and actual RPM
- Brushless DC motor drive ensures quiet, vibration-free operation and extended service life—critical for long-duration incubation or sensitive optical assays
- Digital closed-loop regulation maintains ±3% speed accuracy across the full 150–1500 rpm range, regardless of load or viscosity fluctuations
- Epoxy-coated stainless steel work surface resists corrosion from common lab solvents, acids, and bases; surface hardness exceeds 6H per ISO 1518-1
- Integrated thermal protection circuitry prevents motor overheating during continuous operation or stalled-rotor conditions
- Optional PTFE protective mat (Order Code: 400216-PTFE) provides chemical resistance up to 260°C, anti-slip surface adhesion, and replaceable wear protection—compliant with ISO 9001 handling requirements for reusable lab accessories
Sample Compatibility & Compliance
The WH-610D accommodates standard laboratory glassware including beakers (50–2000 mL), Erlenmeyer flasks, and cylindrical reaction vessels. It is compatible with all commercially available magnetic stir bars (including PTFE-encapsulated, ceramic-core, and high-strength neodymium variants) up to 80 mm in length. The device meets IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments and conforms to EMC Directive 2014/30/EU. While not classified as a GLP/GMP-critical instrument per se, its digital audit trail capability (via optional RS-232 interface on WH-610D variants with firmware v2.1+) supports traceability requirements under FDA 21 CFR Part 11 when integrated into validated workflows.
Software & Data Management
The WH-610D operates as a standalone unit with no embedded software stack; however, select configurations support external data logging via RS-232 serial output (requires optional cable and terminal emulation software). Logged parameters include timestamped RPM values per channel, cumulative runtime, and fault codes (e.g., overtemperature, overload). When deployed in regulated environments, users may configure third-party LIMS or ELN systems to capture and archive these outputs—enabling alignment with ALCOA+ data integrity principles. Firmware updates are performed manually using vendor-provided utility tools; version history and update logs are retained per ISO/IEC 17025 documentation guidelines.
Applications
- Routine solution preparation in QC/QA labs (buffer dilution, standard stock mixing, titrant homogenization)
- Cell culture media conditioning prior to sterilization and filtration
- Parallel synthesis screening in medicinal chemistry and materials science
- Teaching laboratories requiring multi-student concurrent operation with individual parameter control
- Pretreatment of environmental water samples prior to filtration or extraction steps (e.g., EPA Method 1664)
- Viscosity-independent agitation during kinetic assays where constant shear rate is essential
FAQ
Can the WH-610D be used with corrosive solvents such as concentrated HCl or NaOH?
Yes—the epoxy-coated stainless steel surface provides broad chemical resistance; for prolonged exposure to aggressive agents, we recommend using the optional PTFE mat (Order Code: 400216-PTFE).
Is speed calibration traceable to national standards?
Factory calibration is performed against NIST-traceable tachometers; users may perform field verification using an external optical tachometer per ASTM E1530-22 Annex A1.
Does the unit support programmable ramping or timed operation?
No—this is a manually operated, non-programmable stirrer. For protocol-driven automation, consider the WIGGENS WH-610D-PC variant with optional PC interface module.
What is the maximum ambient temperature rating for continuous operation?
Rated for continuous use at ambient temperatures up to 40°C per IEC 60068-2-2; derating is required above this threshold.
Are replacement stir bars included with purchase?
No—stir bars are sold separately; recommended part numbers include WIGGENS WS-25 (25 mm) and WS-50 (50 mm), both PTFE-coated and magnetically balanced.
