Hotplate Magnetic Stirrer BJPX-SC11-Pro
Hotplate magnetic stirrer with ceramic coated aluminum disc (φ140mm), brushless DC motor, 5L capacity, 100–1500 rpm stirring, PID temperature control RT–300°C (±1°C), LED display, and PT100 sensor. Compact, quiet, and precise.
| Brand | Biobase |
| Model | BJPX-SC11-Pro |
| Disk Material | Ceramic coated aluminum disc |
| Working Surface | φ140mm |
| Max Volume | 5L |
| Rotation Range | 100-1500 rpm |
BJPX-SC11-Pro Hotplate Magnetic Stirrer
The BJPX-SC11-Pro is a professional-grade hotplate magnetic stirrer featuring a ceramic coated aluminum disc for corrosion resistance, easy cleaning, and long service life. Equipped with a brushless DC motor for low noise and extended durability, PID temperature control for precise heating up to 300°C, and LED display for clear parameter monitoring.
Key Features
- Ceramic coated aluminum heating plate — corrosion-resistant, easy to clean, long service life
- Brushless DC motor — low noise, long life, strong magnetism
- PID temperature control with PT100 sensor — ±1°C accuracy, 0.1°C display resolution
- High-temperature resistant polymer shell — durable construction
- Timing, forward and reverse, locking and other functions
- Waste heat high temperature alarm (>50°C) for safety
- LED display for real-time parameter monitoring
Technical Parameters
| Model | BJPX-SC11-Pro |
| Disk Material | Ceramic coated aluminum disc |
| Working Surface Size | φ140mm |
| Motor Type | Brushless DC motor |
| Maximum Volume | 5L |
| Rotation Range | 100–1500 rpm |
| Display | LED |
| Temperature Control Range | RT–300°C |
| Temperature Control Method | PID control |
| Temperature Display Resolution | 0.1°C |
| Temperature Control Accuracy | ±1°C |
| Temperature Sensor | PT100 (Standard) |
| Waste Heat High Temp Alarm | >50°C |
| Heating Power | 300W |
| Motor Power | 9W |
| Power Supply | AC100-230V 50/60Hz |
| Timing Range | 0–99h59min |
| Machine Size (mm) | 250 × 150 × 95 |
| Net Weight (kg) | 1.3 |
| Packing Size (mm) | 300 × 200 × 150 |
| Gross Weight (kg) | 2.2 |
Applications
Ideal for chemistry, biology, and pharmaceutical laboratories requiring precise temperature control and magnetic stirring for sample preparation, solution mixing, and chemical reactions.
How It Works
The hotplate magnetic stirrer operates on two integrated principles: resistive heating and electromagnetic stirring. The heating element uses electrical resistance to generate controlled thermal energy, with temperature regulation achieved through feedback control systems that maintain set temperatures within specified tolerances. A magnetic field generator beneath the heating surface creates a rotating electromagnetic field that drives magnetic stir bars placed in sample containers.
The magnetic coupling between the rotating field and the stir bar provides consistent agitation without direct mechanical contact with the sample. This non-contact mixing method eliminates contamination risks while ensuring uniform heat distribution and sample homogeneity. Temperature sensors provide continuous monitoring for precise thermal control during extended operations.
Features & Benefits
Brand
- Biobase
Model
- BJPX-SC11-Pro
Disk Material
- Ceramic coated aluminum disc
Working Surface
- φ140mm
Max Volume
- 5L
Rotation Range
- 100-1500 rpm
Temp Range
- RT-300°C
Temp Accuracy
- ±1°C
Motor Type
- Brushless DC
Weight
- 29.98 kg
Dimensions
- L: 42.0 mm
- W: 43.6 mm
- H: 38.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Integration Design | Combined heating and magnetic stirring in single unit | Entry-level models may require separate hotplate and stirrer components | Reduces bench space requirements and simplifies experimental setup for routine heating and mixing protocols |
| Control Interface | Independent temperature and stirring speed controls | Basic models may have limited parameter adjustment options | Allows fine-tuning of both thermal and mixing parameters for optimal experimental conditions |
| Heating Surface | Chemical-resistant heating platform | Standard models may have basic surface coatings | Provides durability when working with common laboratory solvents and reagents |
| Safety Systems | Integrated thermal protection and control systems | Entry-level units may have basic safety features | Reduces risk of overheating and equipment damage during extended operations |
The BJPX-SC11-Pro provides integrated heating and stirring capabilities with independent parameter control in a compact benchtop design. The chemical-resistant heating surface and safety systems support routine laboratory applications requiring simultaneous temperature control and magnetic agitation.
Practical Tips
Verify temperature accuracy quarterly using a calibrated thermometer placed in a test solution on the heating surface.
Why: Temperature drift can occur over time, affecting experimental reproducibility and reaction outcomes.
Clean the heating surface immediately after use while still warm, using appropriate solvents for any residues.
Why: Dried residues become more difficult to remove and can affect heat transfer efficiency.
Start stirring at low speed before increasing to prevent stir bar decoupling, especially with viscous solutions.
Why: Sudden high-speed rotation can cause the magnetic coupling to fail, stopping agitation entirely.
Never leave the unit unattended when heating flammable solvents, and ensure adequate ventilation.
Why: Solvent vapors can accumulate and create fire or health hazards, particularly in enclosed spaces.
If stirring becomes erratic, check that the stir bar is properly centered and the container is positioned correctly on the heating surface.
Why: Off-center placement can cause irregular magnetic coupling and ineffective mixing patterns.
Allow adequate time for temperature equilibration before beginning time-critical reactions or measurements.
Why: Thermal gradients during heating can create non-uniform reaction conditions that affect experimental results.
Setup Guide
What’s in the Box
- BJPX-SC11-Pro hotplate magnetic stirrer main unit
- Power cord (typical)
- Magnetic stir bars set (typical)
- User manual and safety documentation (typical)
- Warranty certificate (typical)
Warranty
ConductScience provides standard manufacturer warranty coverage with technical support for equipment defects and performance issues. Contact technical support for specific warranty terms and service procedures.
Compliance
References
Background reading relevant to this product:
What temperature range and accuracy can this hotplate achieve for temperature-sensitive reactions?
Consult the product datasheet for specific temperature range, accuracy specifications, and thermal stability parameters required for your experimental protocols.
What is the maximum stirring speed and what size containers can be effectively mixed?
Stirring speed range and optimal container sizes depend on the magnetic coupling strength and heating surface dimensions. Refer to specifications for maximum volumes and vessel compatibility.
How does the temperature control respond to thermal load changes when adding cold samples?
Temperature recovery time varies with heating power and thermal mass of the sample. The feedback control system will adjust to maintain setpoint, but recovery time should be verified for time-critical applications.
What safety features protect against overheating or equipment malfunction?
Safety features typically include temperature limiting, thermal protection, and fault detection. Consult the safety documentation for complete protective system details and emergency procedures.
Can this unit be used with organic solvents and corrosive chemicals?
Chemical compatibility depends on heating surface materials and sealing components. Review the chemical compatibility chart in the technical documentation before use with aggressive solvents.
What maintenance procedures are required to ensure long-term performance?
Regular cleaning of the heating surface, calibration verification, and inspection of control systems maintain optimal performance. Follow the maintenance schedule provided in the user manual.
How does this unit compare to separate hotplate and stirrer combinations?
Integrated units save bench space and reduce setup complexity but may offer less flexibility in independent parameter control compared to separate specialized instruments.
How do I program the bidirectional (forward/reverse) stirring function?
Press and hold the right button for 3 seconds to enter programming mode. The left screen shows 'run' (forward time) and then 'stop' (pause interval between directions). Use the left button to switch between settings and rotate to adjust the time (maximum 99 min 59 sec per setting). Press left button to start — the stirrer cycles automatically: forward → pause → reverse → pause → repeat. The 'A' indicator on screen lights up when bidirectional mode is active.
What is the maximum run time in bidirectional mode vs. forward-only mode?
In bidirectional (forward/reverse) mode, the maximum settable time per direction is 99 minutes 59 seconds. In forward-only (continuous) mode, the maximum run time is 99 hours 59 minutes.
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