GLTlab SHA-10N 10-Position Digital Heating Magnetic Stirrer

Overview

The GLTlab SHA-10N is a precision-engineered 10-position digital heating magnetic stirrer designed for high-throughput laboratory workflows requiring simultaneous, independent thermal and mechanical control across multiple samples. Utilizing permanent magnet coupling and brushless DC motor technology, it delivers stable rotational torque with minimal heat generation and long-term operational reliability. Each of the ten stirring positions features individual speed regulation (100–2000 rpm in 1-rpm increments) and uniform heating via embedded resistive elements beneath a chemically inert ceramic-coated aluminum plate. The device operates on the principle of magnetic field-driven rotation—where a rotating internal magnet array induces synchronous motion in PTFE- or glass-coated stir bars placed within vessels—enabling contactless agitation ideal for sealed, sterile, or volatile systems. Its architecture supports reproducible mixing under controlled thermal conditions, making it suitable for applications ranging from buffer preparation and reagent dissolution to kinetic reaction monitoring and sample equilibration prior to analytical analysis.

Key Features

• 10 independently controllable stirring positions with consistent thermal distribution across the entire 495 × 130 mm ceramic-coated aluminum heating surface
• Dual LED digital display showing real-time setpoint and actual values for both speed (rpm) and temperature (°C)
• Brushless DC motor drive ensuring low electromagnetic interference, extended service life (>20,000 h), and precise speed resolution (1 rpm step)
• Programmable heating profile with adjustable ramp rate (~5 °C/min) and upper limit safety cutoff at 120 °C
• IP42-rated enclosure providing protection against solid objects >1 mm and vertically falling water droplets—suitable for standard wet-lab environments
• Chemical-resistant ceramic coating withstands repeated exposure to common solvents, acids, and bases without degradation
• Integrated overheat warning system with automatic power cutoff upon sensor anomaly or surface temperature excursion beyond calibrated range

Sample Compatibility & Compliance

The SHA-10N accommodates standard laboratory glassware including 25–1000 mL beakers, Erlenmeyer flasks, and cylindrical vials when used with appropriately sized magnetic stir bars (25–35 mm length recommended). Its uniform heating zone and consistent torque delivery ensure comparable mixing performance across all positions—critical for inter-sample comparability in QC testing, method validation, or multi-condition screening studies. While not certified to ISO/IEC 17025 or FDA 21 CFR Part 11 out-of-the-box, the instrument’s dual digital readouts, non-volatile parameter memory, and repeatable setpoint execution support GLP-compliant documentation practices when integrated into validated laboratory procedures. It complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets RoHS Directive 2011/65/EU for hazardous substance restrictions.

Software & Data Management

The SHA-10N operates as a standalone benchtop unit with no embedded microprocessor-based data logging or PC connectivity. All operational parameters—including speed setpoints, temperature targets, and runtime—are manually configured and retained in non-volatile memory during power cycling. For laboratories requiring audit trails or electronic recordkeeping, external USB or RS-232 data loggers may be interfaced via optional analog output modules (not included). When deployed in regulated environments, users are advised to maintain manual logs documenting batch numbers, operator IDs, start/end times, and observed thermal/stirring stability per position—consistent with ALCOA+ principles for data integrity.

Applications

• High-volume buffer and media preparation in molecular biology and cell culture labs
• Simultaneous dissolution testing of pharmaceutical excipients under controlled thermal conditions (aligned with USP & Ph. Eur. general chapter <701>)
• Pre-analytical sample homogenization for ICP-MS, HPLC, or titration workflows
• Accelerated stability studies involving temperature-dependent solubility or reaction kinetics
• Calibration standard preparation where viscosity- or density-sensitive mixing must be replicated across replicates
• Teaching laboratories requiring robust, multi-station instrumentation for undergraduate chemistry and engineering courses

FAQ

Is the SHA-10N compatible with corrosive reagents such as concentrated HCl or NaOH solutions?

Yes—the ceramic-coated aluminum surface exhibits strong resistance to common inorganic acids and alkalis under typical lab exposure durations. However, prolonged contact with hydrofluoric acid or molten alkali metals is not recommended.
Can the unit maintain ±0.5 °C temperature uniformity across all 10 positions?

Under steady-state conditions with identical vessel geometry and volume (e.g., ten 500 mL beakers), surface temperature variation across the active zone remains within ±1.2 °C at 80 °C, per factory calibration reports.
Does the device support external temperature probe feedback control?

No—temperature regulation is based solely on integrated surface-mounted RTD sensors. External probe integration requires third-party PID controllers and is not natively supported.
What is the expected lifetime of the brushless motor under continuous operation?

Rated for ≥20,000 hours of continuous use at nominal load, assuming ambient operating conditions (25 °C, <60% RH) and periodic cleaning of ventilation grilles.
Is CE or UL certification available for this model?

The SHA-10N carries CE marking per EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. UL listing is not currently held but can be pursued under customer-specific certification programs.