Digital hot plate-magnetic stirrer
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Digital hot plate-magnetic stirrer

Digital hot plate-magnetic stirrer
A digital hot plate-magnetic stirrer is a laboratory device that combines two essential functions: heating and stirring. It is widely used in chemistry, biology, and physics laboratories for preparing solutions, mixing chemicals, and conducting experiments that require controlled heating and stirring.
Model : (DL-300)
Brand : DUNLIN
Origin : TAIWAN
Set-up plate Dimensions : Ø 135 mm
Motor type : DC Motor
Speed range : 0-1500 rpm
Display : 5 Inch LED Display
Heating temperature range : Room Temp. 0-280°C
Temperature display : 5 Inch LED Display
Temperature display accuracy : ±0.1
Protection class according to DIN EN 60529 : IP42
Power Supply : 200-240V 3A
Dimensions ( W x D x H ) : ( 255 x 152 x 80 ) mm
Key Components of Digital hot plate-magnetic stirrer:
Hot Plate (Heating Element):
– Provides a flat surface that heats up electrically.
– Controlled via a digital interface for setting precise temperatures.
– Often features over-temperature protection for safety.
- Magnetic Stirrer:
– Uses a rotating magnetic field to spin a magnetic stir bar placed in the liquid.
– Ensures even mixing of the solution without manual stirring.
– Speed can be adjusted digitally.
- Digital Display and Controls:
– Allows precise setting of temperature and stirring speed.
– Typically includes an LCD or LED screen.
– Some models have programmable settings and timers.
- Temperature Sensors: – Built-in or external probes (like a PT100 or thermocouple) for accurate temperature control.
Features of Digital hot plate-magnetic stirrer:
– Temperature Range: Usually ranges from ambient to 300°C or higher.
– Stirring Speed: Typically ranges from 100 to 1500 RPM.
Material: The top plate is often made from ceramic, aluminum, or stainless steel to ensure durability and chemical resistance.
Applications Digital hot plate-magnetic stirrer:
– Dissolving solids in liquids.
– Heating samples while stirring to ensure uniform temperature distribution.
– Conducting chemical reactions that need constant stirring and controlled heat.
– Biological and pharmaceutical sample preparation.
Benefits of using a Digital Hot Plate & Magnetic Stirrer in laboratory and industrial settings:
- Precision and Control- Digital Interface: Allows accurate setting and monitoring of temperature and stirring speed.- Consistent Results: Ensures reproducibility in experiments and solution preparations.
- Efficient Mixing and Heating- Uniform Mixing: Magnetic stirring eliminates hotspots and ensures even distribution of solutes.- Simultaneous Operation: Ability to heat and stir at the same time improves efficiency.
- Safety Features- Overheat Protection: Prevents accidents by automatically shutting off at unsafe temperatures.- Sealed Surface: Reduces risk of contamination and easy to clean.
- Versatility
– Suitable for a wide range of applications including chemical synthesis, biological experiments, and pharmaceutical processes.- Compatible with various types of containers and volumes.
- Compact and User-Friendly- Takes up minimal bench space.- Simple to operate with user-friendly controls and displays.
- Durability- High-quality materials like ceramic or stainless steel tops resist corrosion and wear.
- Time-Saving Speeds up preparation of solutions and reactions compared to manual stirring and separate heating. Would you like these benefits presented in a slide format or for a product brochure?
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- Fabric samples are treated with synthetic perspiration solution (acidic or alkaline).
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- The assembly is loaded into the tester and pressed under specific pressure.
- it’s then incubated at 37°C (body temperature) for a fixed time (typically 4 or 16 hours).
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- Accurate Sweat Simulation - Mimics real-life effects of acidic and alkaline perspiration on fabrics.
- Improves Product Quality - Ensures textiles retain color and don’t bleed or stain when worn.
- Supports Standard Compliance - Follows ISO and AATCC test standards for global market approval.
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- Stainless Steel Frame - Corrosion-resistant body for durability and long-term use.
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- Standardized Loading Weight- Applies uniform pressure (usually 12.5 kPa) across all samples.
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- Complies with Test Standards - Meets ISO 105 E04, AATCC 15, and related perspiration fastness standards.
- Ease of Operation - Simple loading, unloading, and incubation process.
- High-Temperature Resistance - Can be used inside incubators at 37°C or ovens as required.
- Prepare the Test Solution - Mix artificial acidic or alkaline perspiration as per standard (ISO or AATCC).
- Cut the Fabric Samples - Cut both the test fabric and adjacent white fabric (usually cotton) to standard size.
- Soak the Samples - Immerse the fabric sandwich (test + adjacent) in the test solution for 30 minutes.
- Remove Excess Liquid - Gently squeeze or blot to remove extra moisture—do not dry.
- Load in the Tester- Place each sandwich between glass or acrylic separator plates in the tester.
- Apply Pressure - Tighten the top plate or place the standard weight on top to apply uniform pressure.
- Incubate - Keep the loaded tester in an oven or incubator at 37°C for 4–16 hours (depending on the method).
- Accurate Sweat Simulation - Mimics real-life effects of acidic and alkaline perspiration on fabrics.
- Improves Product Quality - Ensures textiles retain color and don’t bleed or stain when worn.
- Supports Standard Compliance - Follows ISO and AATCC test standards for global market approval.
- Protects Brand Reputation- Reduces customer complaints due to dye transfer or fading.
- Simple and Repeatable- Provides consistent pressure and conditions for reliable results.
- Multi-Sample Testing- Tests multiple specimens at once, saving time in labs.
- Durable and Low Maintenance- Robust frame with minimal moving parts makes it long-lasting and easy to care for.
- Dry and Evaluate - Remove, air dry the samples, then assess color change and staining using a gray scale.
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- They are sandwiched with adjacent fabric and placed between glass or acrylic plates.
- The assembly is loaded into the tester and pressed under specific pressure.
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- Supports Quality Control - Ensures consistent air permeability in fabric batches, critical for products like PPE, sportswear, and filters.
- Enhances Product Design - Helps in selecting or engineering fabrics with the right airflow properties for specific uses.
- Standard Compliance - Conforms to international testing standards (e.g., ASTM D737, ISO 9237), ensuring global credibility.
- Quick and Reliable Testing - Provides rapid results, increasing lab efficiency and production decision-making speed.
- Wide Material Compatibility - Suitable for woven, nonwoven, knitted fabrics, and even paper or coated materials.
- Improves Functional Performance - Helps optimize products for ventilation, moisture control, and thermal comfort.
- Reduces Product Failure - Identifies underperforming fabrics early, minimizing risks in high-performance applications.
- Digital Display - Shows air permeability readings clearly in units like L/m²/s or cm³/cm²/s.
- Precise Test Head/Clamp - Provides an airtight seal to prevent air leakage and ensure accurate results.
- Adjustable Pressure Settings - Allows testing under various pressure drops (e.g., 10–2500 Pa), depending on fabric type.
- Automatic Airflow Measurement - Built-in sensors or flow meters capture airflow rate automatically for quick analysis.
- Multiple Test Area Sizes - Interchangeable test plates to match different sample sizes and standard requirements.
- Data Logging and Export - Some models include USB or software connectivity for storing and exporting test results.
- Standard Compliance - Conforms to ASTM D737, ISO 9237, BS 5636, DIN 53887, etc.
- Robust Construction - Built with corrosion-resistant materials and durable components for long-term lab use.
- Low Maintenance - Simple cleaning and calibration process for reliable performance.
- Compact and User-Friendly Design - Ideal for lab benches and easy operation with minimal training.
- Prepare the Sample - Cut the fabric sample to the required size (usually circular, e.g., 20 cm²).
- Mount the Sample - Place the fabric securely in the test clamp or holder, ensuring no wrinkles or gaps.
- Set Test Parameters - Adjust the air pressure drop according to the fabric type or standard (e.g., 100 Pa).
- Start the Test - Turn on the air supply and start the airflow through the fabric.
- Read the Measurement - The digital display will show the air permeability value in the selected units.
- Record the Results - Note the readings or export data if the device supports it.
- Repeat if needed - Test multiple samples or areas for accuracy and average the results.
- Clean and Maintain - After testing, clean the clamp and ensure the device is calibrated regularly.

Digital Elmendorf tearing tester
Digital Elmendorf Tearing Tester
Digital Elmendorf Tearing Tester is a precision instrument used to measure the tear strength of materials like woven fabrics, paper, plastic films, and nonwovens. It determines how much force is required to continue tearing a pre-slit sample. Key Functions of Digital Elmendorf Tearing Tester: - Measures propagation tear resistance, not initial tear. - Uses a pendulum to apply force; the energy lost during tearing is calculated to determine tear strength. - Equipped with a digital display for direct reading of results in grams or millinewtons. Core Components: - Pendulum Arm: Applies tearing force. - Clamps: Secure the sample before and after the tear. - Cutting Blade: Creates a precise slit at the start of the test. - Digital Display Unit: Shows the tearing force result clearly and instantly. - Counterweights: Optional weights for increasing test range (for stronger materials). Applications of Digital Elmendorf Tearing Tester: - Testing tear resistance of: - Textile fabrics (especially woven) - Paper and cardboard - Plastic films - Nonwovens - Packaging materials Benefits of Digital Elmendorf Tearing Tester:- Accurate Tear Strength Measurement - Provides precise data on tear resistance, critical for quality control and product performance.
- Digital Readout - Easy-to-read display gives instant, reliable results without manual calculations.
- High Reproducibility - Ensures consistent test outcomes due to controlled tearing angle and speed.
- Fast Testing Process - Simple loading and quick test cycle increase lab efficiency.
- Suitable for Various Materials - Tests a wide range of flexible materials like textiles, paper, plastic, and packaging.
- Customizable Range - Use of optional weights extends the test range for low to high tear strength materials.
- Low Sample Waste - Requires small fabric or material samples, reducing waste during testing.
- Standards Compliance - Meets international testing standards (e.g., ASTM D1424, ISO 13937) for credibility and uniformity.
- Precision Sample Clamp - Securely holds samples in place to ensure accurate tear initiation.
- Pre-Cutting Blade - Integrated knife creates a precise initial slit in the sample before tearing.
- User-Friendly Interface - Simple buttons and screen navigation for ease of operation.
- Standard Test Compliance - Compatible with ASTM D1424, ISO 1974, ISO 13937, and other tear strength standards.
- Sturdy Construction - Made with durable materials for long-lasting performance and stable operation.
- Compact Design - Space-efficient footprint ideal for laboratory environments.
- Data Output Options- Some models offer USB or printer connectivity for result documentation.
- Prepare the Sample - Cut the material (fabric, paper, film, etc.) to standard size (typically 100 × 63 mm for textiles) and slit it with the pre-cutter as required.
- Select Pendulum Weight - Choose the appropriate pendulum or add counterweights based on expected tear strength.
- Calibrate the Machine - Set the pendulum to its starting position and zero the display.
- Clamp the Sample - Fix one half of the sample in the stationary clamp and the other in the moving clamp.
- Cut the Initial Slit - Use the integrated blade to make a precise cut at the marked slit area (usually 20 mm).
- Release the Pendulum - Trigger the pendulum to swing and tear the sample through the pre-slit.
- Read the Result - The digital display will show the tearing force automatically (in g, mN, or cN).
- Record or Export Data - Save or print the result if your model supports USB or printer connection.
- Reset for Next Test - Reposition the pendulum and prepare a new sample for the next cycle.

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VeriVide Colour Assessment Cabinets

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