






Magnetic Stirring Water Bath for Laboratory Heating and Multi-Sample Preparation
The KingPo Magnetic Stirring Water Bath is a multi-position laboratory instrument integrating thermostatic water-bath heating and magnetic stirring. It is designed for heating, mixing and temperature-controlled processing of chemical reagents, biological samples and laboratory solutions.
The system provides independently controlled stirring positions, adjustable rotational speeds and a water-bath temperature range of ambient temperature +5°C to 100°C. Available in 1-, 2-, 4- and 6-position configurations, it supports simultaneous processing of multiple samples, with a maximum stirring volume of 1,000 mL per position.
- Model Series: KP-MSWB-1A / 1AB, KP-MSWB-2A / 2AB, KP-MSWB-4A / 4AB, KP-MSWB-6A / 6AB
- Stirring Positions: 1, 2, 4 or 6 independently controlled positions
- Temperature Range: Ambient temperature +5°C to 100°C
- Temperature Control Accuracy: ±0.1°C
- Temperature Fluctuation: ±0.5°C
- Stirring Speed: 0–2400 rpm (A models); approximately 200–2400 rpm (AB models)
- Maximum Stirring Volume: 1,000 mL per position
- Timer Range: 0–999 min
- Heating Power: 400 W / 800 W / 1600 W / 2400 W, depending on configuration
- Power Supply: 220 V AC, 50 Hz
Magnetic Stirring Water Bath
Product Overview
The KingPo KP-MSWB Series Magnetic Stirring Water Bath combines a stainless steel water bath, an electrical heating system and multiple magnetic stirring positions in one laboratory instrument.
The water-bath heating system provides a controlled thermal environment for sample containers, while the magnetic drive rotates the stir bars inside the containers to promote liquid circulation and mixing. This integrated arrangement allows samples to be heated and stirred simultaneously without requiring separate heating and stirring equipment.
Each stirring position can be operated independently, allowing laboratories to process multiple samples at the same time. The series is available in four configurations to accommodate different sample quantities and laboratory workflows.
The equipment incorporates an immersion-type ring heating structure, a built-in temperature probe and an LED digital display. The stainless steel bath provides corrosion resistance for routine laboratory applications, while the PTFE-based magnetic stir bars are designed for elevated-temperature and chemically demanding environments.
Technical Specifications
General Specifications
| Parameter | Specification |
|---|---|
| Brand | KingPo |
| Product Name | Magnetic Stirring Water Bath |
| Model Series | KP-MSWB Series |
| Power Supply | 220 V AC, 50 Hz |
| Temperature Range | Ambient temperature +5°C to 100°C |
| Temperature Control Accuracy | ±0.1°C |
| Temperature Fluctuation | ±0.5°C |
| Stirring Speed – A Models | 0–2400 rpm |
| Stirring Speed – AB Models | Approximately 200–2400 rpm |
| Timer Range | 0–999 min |
| Temperature Sensor | Built-in temperature probe |
| Display | LED digital display |
| Stirring Control | Independent control at each position |
| Heating Method | Immersion-type ring heating |
| Water Bath Material | Stainless steel |
| Maximum Stirring Volume | 1000 mL per position |
| Stir Bar Material | PTFE and magnetic steel construction |
Model Configuration
| Parameter | 1 Position | 2 Positions | 4 Positions | 6 Positions |
|---|---|---|---|---|
| Models | KP-MSWB-1A / 1AB | KP-MSWB-2A / 2AB | KP-MSWB-4A / 4AB | KP-MSWB-6A / 6AB |
| Stirring Positions | 1 | 2 | 4 | 6 |
| Motor Power | 40 W × 1 | 40 W × 2 | 40 W × 4 | 40 W × 6 |
| Heating Power | 400 W | 800 W | 1600 W | 2400 W |
| Maximum Stirring Volume | 1000 mL × 1 | 1000 mL × 2 | 1000 mL × 4 | 1000 mL × 6 |
| Drain Outlet | No | No | Yes | Yes |

Model Selection Note:
A models provide a stirring speed range of 0–2400 rpm, while AB models operate at approximately 200–2400 rpm. The maximum stirring volume is specified per position.
Mechanical Dimensions and Sample Compatibility
| Parameter | Specification |
|---|---|
| Single Bath Diameter | 200 mm |
| Single Bath Height | 120 mm |
| Heating Ring Inner Diameter | 130 mm |
| Compatible Beaker Diameter | Less than 130 mm |
Key Features
Integrated Water Bath Heating and Magnetic Stirring
Combines two laboratory functions in one instrument. The water bath provides controlled sample heating, while the magnetic stirring mechanism supports continuous liquid mixing during thermal processing.
Independent Multi-Position Stirring
Each stirring position has independent speed control, allowing different samples to be stirred simultaneously with individual speed settings.
Flexible Multi-Position Configurations
Available in 1-, 2-, 4- and 6-position configurations to accommodate different sample quantities and laboratory throughput requirements.
Digital Temperature Control
The built-in temperature probe and LED digital display support temperature adjustment and monitoring, with specified control accuracy of ±0.1°C.
Immersion-Type Ring Heating System
The immersion-type heating structure is designed to provide uniform heat distribution throughout the water bath.
Stainless Steel Construction and PTFE Stir Bars
The stainless steel water bath provides corrosion resistance, while PTFE-coated magnetic stir bars support suitable laboratory heating and mixing applications.
Operating Principle
The KP-MSWB Magnetic Stirring Water Bath combines thermal energy transfer and magnetic coupling to heat and mix liquid samples.
Water Bath Heating
The electrical heating element heats the water inside the stainless steel bath. Heat is transferred through the surrounding water to the sample containers.
Magnetic Stirring
The magnetic drive rotates the stir bar inside each sample container, promoting liquid circulation and mixing.
Independent Processing
Each stirring position can operate independently, allowing multiple samples to be heated and stirred simultaneously.
Sample Vessel Compatibility
The KP-MSWB series uses a stainless steel water bath with a specified diameter of 200 mm and height of 120 mm. The heating ring has an inner diameter of 130 mm.
Sample containers should have an external diameter below 130 mm and be suitable for the required operating temperature and sample volume.
When selecting the sample vessel and magnetic stir bar, consider:
- Container diameter and available heating space.
- Liquid volume in each stirring position.
- Sample viscosity and mixing characteristics.
- Required operating temperature.
- Chemical compatibility of the vessel and stir bar.
The four- and six-position configurations include a water-bath drain outlet, while the one- and two-position configurations do not.
Typical Laboratory Applications
The KingPo Magnetic Stirring Water Bath supports laboratory procedures requiring controlled heating, liquid mixing and sample preparation.
| Application Area | Typical Use |
|---|---|
| Chemical Laboratories | Chemical reagent preparation, solution heating and mixing. |
| Biological Laboratories | Biological sample processing and temperature-controlled treatment. |
| Pharmaceutical R&D | Reagent preparation and laboratory solution processing. |
| University Laboratories | Experimental research, teaching and sample preparation. |
| Research Institutes | Controlled heating, stirring and sample conditioning. |
| Quality Control Laboratories | Routine solution preparation and laboratory testing workflows. |
Typical procedures include reagent heating, liquid dissolution, solution mixing, warm immersion and selected concentration procedures where water-bath heating is required.

Compliance & Regulatory Assurance
The KingPo KP-MSWB Magnetic Stirring Water Bath Series is designed for laboratory heating and magnetic stirring applications. Electrical safety, heating performance and electromagnetic compatibility should be evaluated according to the applicable requirements of the destination market. Product conformity documentation and regulatory requirements can be confirmed according to the selected model and configuration.
Technical Inquiry & Expert Support
Selecting the appropriate magnetic stirring water bath depends on the number of samples, sample volume, vessel dimensions, temperature requirements and stirring speed.
| 01. Stirring CapacityNumber of stirring positions and required sample volume per position. | 02. Sample VesselsContainer diameter and dimensions. |
| 03. Temperature RequirementsRequired operating temperature and heating conditions. | 04. Stirring SpeedRequired rotational speed range (rpm). |
| 05. Drainage RequirementsWhether a water-bath drain outlet is required. | 06. Electrical SupplyAvailable local voltage and power frequency. |
KingPo can assist in selecting a suitable KP-MSWB configuration according to your laboratory heating, stirring and sample preparation requirements.
Detail Display
FAQ
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