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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COLOR FASTNESS TO WASHING MACHINE
Color fastness to washing machine refers to a fabric’s resistance to fading or bleeding when subjected to washing processes. This test measures how well the dye or colorant stays on the fabric when exposed to water, detergent, heat, and mechanical action—conditions typically found in household or industrial washing machines. Purpose of Color fastness to washing machine - To evaluate the durability of dyed or printed textiles during laundering.- Essential for determining fabric quality and suitability for end-use (e.g., clothing, upholstery). Test Method Usually based on international standards such as: - ISO 105-C06 - AATCC 61- IS 3361- AATCC 28/61/132/151/190, BS 1006 C01-C05, ISO 105 Part C01-C06/C08/D01, M&S C4/C5/C10A/P3B, FTMS 191-5610, NEXT TM2/3/5, GB/T 5711/3921 Procedure (Simplified)1. Sample Preparation: - A fabric specimen is stitched with undyed adjacent fabrics (usually cotton or wool).2. Washing: - Washed in a laboratory washing machine using standard detergent, water, and specific temperature/time settings (e.g., 40°C for 30 minutes).- Drying: - After washing, the sample is dried, typically air-dried or tumble-dried.4. Evaluation: - Color change and staining on adjacent fabrics are assessed using a gray scale (1 to 5 scale; 5 = no change, 1 = severe change). - Results may also be evaluated visually under standard lighting.
- Supports Brand Reputation - Reliable color fastness contributes to a premium product image and consistent performance.4. Compliance with Standards - Meets industry requirements (e.g., ISO, AATCC), crucial for export, certifications, and regulatory compliance.
- Improves Process Control- Helps identify dyeing or finishing process issues early, leading to better production control.6. Reduces Rework and Waste - Minimizes production losses due to color defects after washing.
- Essential for Specific End Uses - Critical for items subject to frequent washing (e.g., uniforms, baby clothes, hospital linens).8. Supports Material Selection - Guides textile manufacturers in choosing appropriate dyes and fabrics for specific applications.
- Assessment of Color Change and Staining- Evaluates both the fabric’s color retention and the staining of adjacent fabrics using grey scales (1 to 5 rating).4. Multi-Fiber Fabric Use - Tests include fabric stitched with adjacent test strips (cotton, wool, etc.) to assess color bleeding onto different fibers.
- Multiple Test Options - Includes domestic, accelerated, and industrial washing conditions depending on the end-use of the fabric.6. Temperature and Time Control - Precise control over wash temperature (e.g., 40°C, 60°C) and duration (e.g., 30 mins), simulating specific washing cycles.
- Detergent and Additive Use - Uses standardized detergent formulations with/without optical brighteners, and sometimes alkaline or oxidizing agents.8. Reproducible and Quantifiable - Provides repeatable results that can be objectively measured and documented.
- Applicability to All Textile Types - Suitable for dyed, printed, or coated fabrics across various fibers (cotton, polyester, blends, etc.).
- Rate of temperature rise: Maximum speed for 2ºC/min 7. Internal materials: Imported Stainless Steel 316L 8. Control panel: Touch screen
- Rack point control function helps to replace containers easily 10. Safety device: Safety door switch, over-temperature protector and dry heating protector 11. Heating media: Distilled water 12. Power supply: AC220V 50Hz 30A
Steam Soaping machine
Steam Soaping Machine
A Steam Soaping Machine is a specialized laboratory apparatus used in textile dyeing processes, particularly for post-dyeing treatments like soaping, which enhances color fastness and removes unfixed dyes from fabric samples. This machine is designed to perform soaping treatments on dyed textile samples using steam. Soaping is a critical step in dyeing, especially for reactive dyes, as it removes unfixed dye particles, ensuring better color fastness and preventing dye bleeding. The steam soaping process involves treating the dyed fabric with a soaping solution at elevated temperatures, facilitated by steam, to achieve optimal results. ⚙️ Key Features of Steam Soaping Machine - Beaker Material: Constructed with high-grade 316L stainless steel for excellent corrosion resistance and durability.- Operation Modes: Offers both automatic control and manual water filling options, providing flexibility in operation. - Drainage System: Equipped with an automatic drainage device for efficient removal of used solutions.- Temperature Control: Precise temperature regulation to maintain optimal soaping conditions.- Compact Design: Suitable for laboratory settings, occupying minimal space while delivering effective performance. ✅ Benefits of Steam Soaping Machine - Enhanced Color Fastness: Effectively removes unfixed dyes, resulting in improved wash and rub fastness of the fabric.- Efficient Processing: Reduces the time required for post-dyeing treatments compared to conventional methods.- Consistent Results: Provides uniform treatment across samples, ensuring reproducibility in testing and quality control.- Resource Optimization: Minimizes water and chemical usage through controlled processing parameters.- Versatility: Applicable to various fabric types and dye classes, making it a valuable tool in research and development. Typical Applications - Laboratory Testing: Used in dyeing laboratories for evaluating the fastness properties of dyed samples. - Research and Development: Assists in developing and optimizing dyeing processes and formulations. - Quality Control: Ensures that dyed fabrics meet specified fastness standards before bulk production. In summary, a Steam Soaping Machine is an essential laboratory instrument in the textile industry, facilitating efficient and effective post-dyeing treatments to enhance the quality and durability of dyed fabrics. Features of Steam Soaping Machine:- High-Grade Stainless Steel Beakers - Made from 316L stainless steel for excellent chemical and heat resistance.
- Steam-Based Heating - Uses direct or indirect steam to maintain consistent high temperatures ideal for soaping.
- Precise Temperature Control - Maintains stable temperatures (typically up to 98–100°C) for effective removal of unfixed dyes.
- Automatic and Manual Modes - Offers both programmable automatic cycles and manual operation for flexibility.
- Beaker Agitation or Rotation - Ensures uniform soaping action across fabric surfaces.
- Automatic Drainage System - Efficiently removes used soaping solution to speed up cycle changeovers.
- Compact Design - Fits well in lab settings while allowing multiple samples to be processed simultaneously.
- Safety Features - Includes pressure and temperature protection systems to ensure safe operation.
- Low Water and Chemical Use - Designed for minimal liquor ratios, enhancing sustainability.
- User-Friendly Interface - Simple digital controls or touch panel for easy operation and cycle programming.
- Prepare the Dyed Sample - After dyeing, rinse the fabric to remove surface dye and prepare it for soaping.
- Load the Fabric - Place the dyed fabric or sample into the beakers or holders inside the machine.
- Add Soaping Solution - Pour the prepared soaping agent (usually a detergent solution) into the beakers or tank as per recipe.
- Set Parameters
- Start the Cycle - Begin the soaping process. The machine will heat the solution using steam and agitate/rotate the beakers for even treatment.
- Drain and Rinse - After the cycle ends, the machine may auto-drain. Rinse the fabric with warm water to remove residual chemicals.
- Unload the Samples - Carefully remove the fabric. Inspect for evenness and color fastness improvement.
- Clean the Machine - Rinse and dry the beakers or tank to maintain hygiene for the next use.
used for sample soaping after dyeing in laboratory
Beaker material: 316L S/S
automatic control / manual filling water device, with automatic drainage device.
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Fabric Air Permeability Tester
Fabric Air Permeability Tester is a lab instrument used to measure how easily air passes through a fabric. It quantifies the air permeability, which is crucial for evaluating breathability, comfort, and functional performance in textiles. Purpose Fabric Air Permeability Tester: It determines the rate of airflow through a fabric sample under a set air pressure, typically reported in units like cm³/cm²/s or L/m²/s. Working Principle: The tester creates a pressure difference across the fabric sample and measures the volume of air flowing through it. Higher air permeability means the fabric is more breathable. Main Components of Fabric Air Permeability Tester: - Test Head / Clamp: Holds the fabric securely without leakage. - Pressure Regulator: Maintains a constant air pressure during testing. - Flow Meter or Digital Sensor: Measures the actual airflow rate through the fabric. - Display Unit: Shows readings of air permeability instantly. Applications of Fabric Air Permeability Tester: - Performance textiles (sportswear, PPE) - Technical fabrics (filters, tents, airbags) - Medical textiles (masks, gowns) - Nonwovens and industrial materials Benefits of Fabric Air Permeability Tester:- Accurate Breathability Measurement - Precisely measures how breathable a fabric is, essential for comfort and performance.
- 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.
r Permeability Tester
Appliance Range
It is used to TEST the air permeability of various textile fabrics, including industrial fabrics, nonwoven fabrics and other textile products and other breathable materials.
Related Standards
GB / T 5453, GB / T 13764, ISO 9237, ISO 5636, ASTM D737, etc.
Instrument characteristics
1. Automatic sample clamping, automatic nozzle replacement, and quick test.
2. Microcomputer processing, the test results are displayed directly, without manual table calculation;
3. Built-in continuous test mode, the test unit can be switched as needed.
4. Chinese LCD menu operation, configure computer interface.
Technical parameter
1. Range of sample pressure difference: 1 ~ 4000Pa
2. Measurable air permeability: 1 ~ 40,000mm / s
3. Measurement error: ≤ ± 2%
4. Measurable fabric thickness: ≤8mm
5. Test area: 5cm2; 20cm2; 50cm2; 100cm2
Ф50mm (≈19.6cm2)
Ф70mm (≈38.5cm2)
6. Nozzles: 11 in total (automatic replacement of digital setting)
CODE 00 01 02 03 04 05 06 07 08 09 10
DIAφ(mm)
0.8 1.2 2 3 4 6 8 10 12 16 20
7.Data Capacity:≤200 times tests
8.Power Supply:AC220V 50Hz 2KW
9.Weight:80Kg
10.Shape:1250×700×1250mm Digital Ink Rubbing Tester
Digital Ink Rubbing Tester

Digital Ink Rubbing Tester

Digital Ink Rubbing Tester
Bursting strength tester
Bursting strength tester

true burst
- Available with automatic test strip feeder Measurements are simple to make with the Mullen type Bursting Strength Tester. Fast automatic measurements Measurement starts automatically once a test piece has been placed in the measuring gap. The clamping foot descends, and a bursting strength measurement is made.
- Bursting pressure can reach up to 1.2MPa 5. The maximum burst and expansion degree can reach 70mm. 6. Strengthen the lighting system on the test surface. 7. The main aerodynamic force helps to clamp the sample system. 8. A variety of test areas are available, and the switching is easy.
- A variety of unit conversions between Chinese and English. 10. Reliable anti-pinch safety protection design. [Technical parameter]: 1. Test range: (0~1)Mpa (the range above 1Mpa needs to be customized) 2. The minimum graduation value: 0.0001Mpa 3. Pressurization mode: direct pressurization, timing pressurization, and expansion degree pressurization.
Orbital Shaker Machine
Orbital Shaker Machine

Orbital Shaker Machine
- Orbital Motion - Provides a smooth circular shaking pattern, ideal for gentle mixing without foaming or splashing.
- Adjustable Speed Control - Speed typically ranges from 50 to 300 RPM, depending on the model and application.
- Timer Function - Allows users to set shaking time from minutes to hours for precise control of experiments.
- Platform with Clamps or Mats - Holds flasks, beakers, test tubes, or trays securely during operation.
- Digital Display (in advanced models) - Shows speed and time settings for accurate and repeatable performance.
- Variable Capacity - Available in sizes to accommodate different lab needs—from a few samples to dozens.
- Quiet Operation - Designed for minimal vibration and noise during continuous use.
- Uniform Mixing - Ensures even distribution of dyes, chemicals, or cultures without manual stirring.
- Gentle Agitation - Ideal for delicate samples like cell cultures or fabric swatches, reducing damage or splashing.
- Hands-Free Operation - Allows continuous, unattended mixing—improving lab efficiency and freeing up personnel.
- Customizable Settings - Adjustable speed and timer let users tailor mixing to specific sample types and needs.
- Versatile Use - Suitable for a wide range of applications including dye mixing, sample incubation, chemical reaction enhancement, and microbial growth.
- Enhanced Reproducibility - Consistent shaking patterns and digital controls ensure repeatable results across experiments.
- Reduces Human Error - Automated operation minimizes variability and manual handling mistakes.
- Compact and Lab-Friendly - Takes up minimal space while accommodating multiple sample containers.
- Orbital Shaking Motion - Moves samples in a circular path for uniform and consistent mixing.
- Variable Speed Control - Adjustable shaking speed (typically 50–300 RPM) to suit different sample types.
- Digital Timer - Programmable run time for precise and repeatable operations.
- Flat Platform Design - Accommodates flasks, beakers, tubes, or trays with optional clamps or non-slip mats.
- LCD or LED Display (in advanced models) - Shows speed, time, and operating status clearly.
- Quiet Operation - Low-noise motor and stable base minimize vibration and disturbance in the lab.
- Overload Protection - Prevents motor damage from excessive weight or resistance.
- Compact and Durable Build - Designed to fit standard lab benches and withstand regular use.
- Versatile Capacity Options - Available in various sizes to handle different numbers and sizes of containers. User-Friendly Interface - Simple control panel for easy setup and operation.
Brand: Dunlin
Origin: Korea.
Maximum. load capacity (with platform) is 7.5kg
Support orbital and linear shaking
Fashion design of high strength tempered glass on the front panel
LED display for easy-reading of speed and time simultaneously
Digital speed control system and micro-computer control make stable running and prevent sample splashing.
Brushless DC motor is maintenance-free and provides long service life
Over-load and over-speed detection and protection
Supports both orbital shaking and linear shaking and easy to switch the shaking mode
Continuous operation and timed operation in range of 0-99h59min are available
Automatic alarm by time controller allows for unsupervised operation
A wide choice of platforms for various applications
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Controller For IR Dyeing Machine

IR Dyeing machine controller
- Temperature Control:- Precisely regulates the infrared heaters to maintain uniform temperature across the dye bath. - Supports customizable heating curves (ramp-up, hold, and cool-down phases).
- Programmable Logic Control (PLC): - Allows operators to set and automate dyeing programs for different fabrics and dye types. - Supports multiple recipes or programs for different batches.
- Real-Time Monitoring and Feedback: - Monitors parameters like temperature, fabric rotation, bath circulation, and timing. - Provides real-time data and alarms for deviations.
- Touchscreen Interface / HMI (Human Machine Interface): - User-friendly interface for configuring and monitoring processes. - Multi-language support and graphical display of process curves.
- Data Logging and Traceability: - Records process data for quality control and traceability.
- Energy Efficiency Optimization: - Manages IR heater output to reduce energy usage. - Often includes features for auto shut-off or idle mode.
- Safety Features: - Includes emergency stop, over-temperature protection, and fault detection systems. 8. Connectivity: - Modern controllers may support Ethernet, Modbus, or other industrial communication protocols for integration into factory automation systems.
- Improved Dyeing Accuracy and Consistency
- Enhanced Energy Efficiency- Infrared heating is more energy-efficient than traditional heating methods.- The controller optimizes energy use by adjusting the IR output based on process needs, reducing overall energy consumption.
- Time Savings- Faster heating and cooling cycles due to infrared technology.- Automated processes reduce manual intervention and cycle times. 4. Better Process Control- Programmable dyeing cycles and precise control over each stage (heating, dyeing, rinsing, cooling).- Real-time monitoring and adjustments improve reliability.
- Reduced Water and Chemical Usage- More efficient dye penetration and fixation mean less water and fewer chemicals are needed for reprocessing or corrections.6. Lower Operational Costs
- Enhanced Safety Built-in alarms, emergency shut-off and automatic fault detection enhance operational safety.8. Data Logging and Traceability- Ability to record and review dyeing process data helps in quality control and troubleshooting.- Facilitates compliance with industry standards and audits.
- User-Friendly Operation- Modern touchscreen interfaces make it easier for operators to manage and monitor processes.- Multilingual support and visual feedback enhance usability.
IR Dyeing Machine Dunlin
IR Dyeing Machine Dunlin
IR Dyeing machine Dunlin is Safe, high efficiency, environment friendly, energy saving, optimum for new dyeing small sample machines0 - 3.5 ℃ / min Cooling rate 0.2 - 5 ℃ / min Cooling method Air-cooled Rotation speed 0 - 60 rpm Liquor ratio 1:5 -1:100 Power supply 1∮AC 220V 50/60HZ Dimensions( L x W x H) 670×670×780mm 860×680×780mm Weight 100kg 120kg Standard Accessories Cups 1set
Put the test sample. Cups stand 1set Place where to put cups. Protective glove 1set To avoid to be hurt by HT cups. Model: IF-24SCapacity: 24 pots Brad: DUNLIN Origin: China
Color dyeing tests for various dyestuffs of IR Dyeing machine Dunlin- Step dyeing tests. C. Dispersing, levelling and impregnating test. D. High or low liquor ratio exhausting tests. E. Fabric steak and staining tests. F. Concentration tests and others. Protection and Safety gates to protect. Temperature control accuracy +/- 0.2degree

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