1. After the test is completed, clean the Water Cool Light Fastness Tester and control system and clean the equipment regularly.

2. Check the condition of the machine regularly to maintain the integrity of all parts and components.

3. Maintain temperature and humidity stability to prevent damage to the machine and control system caused by high temperature, excessive humidity, dust, corrosive media, water, etc.

4. For parts prone to rust, apply anti-rust oil and check them regularly.

5. The Light Fastness Tester (water-cool) has been calibrated before leaving the factory. Non-professionals are not allowed to calibrate it at will.

6. Non-professionals are not allowed to dismantle the machine at will. After each dismantling and repair, measurement and performance calibration must be carried out to avoid affecting the accuracy of the test.

7. No unauthorized modification of the machine is allowed during its use.

8. The filter should be cleaned regularly. Any traces left on the mirror surface should be wiped off with a very soft cloth. If there are stains on the quartz glass tube, it can be cleaned with hydrochloric acid, and the infrared and ultraviolet filters can be cleaned with 20% citric acid.

9. Since dust in the air will contaminate the glass and affect the efficiency of the lamp in irradiating the sample, it needs to be cleaned every 3 to 4 weeks of use.

10. Clean the air filter regularly, preferably by blowing it with compressed air or dry brushing it with a soft-bristle brush.

11. When the xenon arc lamp has worked for 1000-1500 hours and the filter has worked for 1000 hours, in order to avoid irradiance deviation caused by device aging, new accessories must be replaced (depending on the attenuation of the light source).

12. In order to avoid irradiance deviation caused by device aging, the xenon arc lamp should be replaced with a new one after working for 1000-1500 hours and the filter should be replaced after working for 1000 hours (depending on the attenuation of the light source).

13. To ensure the normal operation of the Light Fastness Test Chamber, the water level in the water tank must be checked regularly. When not in use for a long time, the water should be drained cleanly. When draining, first lead the plastic pipe connected to the manual reversing valve at the outlet of the water pump out of the chassis, put the pipe mouth away from the instrument and fix it properly (to avoid getting the instrument wet), pull up the reversing valve handle, turn on the power switch, and the water will be automatically drained. After draining, return the reversing valve handle to its original position (flat to the right).

AVENO recommended product:

Light Fastness Tester (water-cool)  AC02

Any demand can be referred to us!

Sales Dept Tel: +86 15280858852

Email: sales@avenotester.com

Skype: sales@avenotester.com

Web: www.avenotester.com

Weather Fastness Tester is essential to understand the expected performance of a product and to make informed decisions about its use and application. Lightfastness Tester (Air Cooled) is primarily used to determine the color stability and durability of fabrics, dyes, pigments and other materials when exposed to light.

Do you want to know more about the Air-cool Light Fastness Tester?

Principle:

The specimen is exposed to controlled light levels, typically using a xenon arc lamp as the light source. The intensity, wavelength and duration of the exposure can be precisely adjusted to the required testing standards and requirements. This allows for accurate and repeatable testing, ensuring consistent results that can be used to predict how a material will perform in the real world.

Standards

JIS L0843, GB/T 16422.1, GB/T 14576, GB/T 9344, GB/T 8427, GB/T 1189, GB/T 8430, ISO 105-B02/B04, AATCC TM16, M&S C09/C09A, ASTM G26, G155, ASTM D2565 D4459 D6695

AVENO recommended product:

Light Fastness Tester (air-cool) AC01

Any demand can be referred to us!

Sales Dept Tel: +86 15280858852

Email: sales@avenotester.com

Skype: sales@avenotester.com

Web: www.avenotester.com

Circular Rubbing Colour Fastness Tester GT-KC52: Features, Operation, and Buying Guide

If you’ve been in manufacturing, then you may have heard of how important colour fastness is. Whether a product’s colour can withstand friction damage affects its quality and brand reputation. In this process, an accurate and reliable testing instrument is key.

But why do you need the GT-KC52 Circular Friction Colour Fastness Tester?

Let’s delve in to answer your whys.

What is the Circular Rubbing Colour Fastness Tester GT-KC52

This Rubbing Colour Fastness Tester is used for assess colored materials friction damage and surface color transfer. It is suitable test the upper materials, such as leather, plastics and fabric etc.

Under constant pressure condition, rubbing can be carried out in dry or wet circle wool felt, the machine will stop when the preset rub count has bees reached. Fastness can be judged by the effect on the sample material or the transfer of color to the rubbing pad and assessed by reference to a standard gray scale.

Features of Rubbing Colour Fastness Tester

1. Rub fastness tester: test methods: dry rubbing, wet rubbing, perspiration rubbing, alcohol rubbing, organic liquids rubbing. (The probational liquid need to be prepared by customers)
2. The counter can pre-determined test counts and show actual test count. The machine will stop when the preset count has been reached.
3. Memory function: when preset count has not been reached, if to stop test by manual, the current number of test will be saved until to clear it to zero or continue testing; if to shutdown and restart the machine, the current data will be clear to zero, the preset count would be the value of last set.
4. Rotary Rubbing Fastness Tester: according to different requirements of testing, can be applied to correspondent load.

How to Operate the Rotary Rubbing Fastness Tester

Acceptance
Inspection accessories (according to order): Square iron block (dry rubbing test after organic solvent is moistened from the back), round aluminum block (help to cool sample during dry rub test), weight.

Adjust the level of the machine according to the level.
Confirm the power supply and connect it. Turn on the power switch and emergency stop switch.
Click "English" to enter the test interface.
Click "Micro" to check if the machine is working properly.
Make sure the friction head is lifting and lowering normally without any jamming.

Dry rub test operation
Install the wool felt: Lift the fixture and install the wool felt on it.
Place the specimen test side up and lower the fixture.
Install the weights.

Parameter settings:
Test times setting: Click "English", click "SETTING" to enter the parameter interface,
there are "Counter" and "Timer" modes, select "Counter" mode, click to set the number of times 64.
Speed set: 150 ± 5r/min.
Click "TEST" to return to the test interface, click "Zero" to clear, click "TEST" to start test.

For specimens with low melting or softening temperature coatings on the surface during testing, the machine should be stopped periodically to avoid heat damage.
A round aluminum block was placed over the area where the specimen was rubbed, and the specimen was placed on the circular aluminum block and allowed to sit for 30 seconds to help remove the heat before the test was continued.

When the testing cycles is reached, it will stop automatically. Lift up the fixture, remove the specimen and observe.

Comprehensive Testing of Insole Materials: Thickness, Flexing Index, Abrasion, and Water Absorption/Desorption

Insoles are a critical component in footwear that directly contacts the foot, providing comfort, support, and cushioning. To ensure the comfort, safety, and durability of insoles, a series of tests must be conducted.

Testing Items

The testing items for insoles primarily include the following aspects:

1. Thickness (mm)
The thickness of insoles directly affect their cushioning effect and support performance.

Test apparatus:
Thickness Gauge ( Leather ) GT-KD07
The thickness gauge is used to measure the thickness of vulcanized rubber and leather products. Clamp specimen between up and down parallel round plates. The pointed graduation is the thickness.

Standards:
IS 15298 (Part 1)
BS-903-A38, ISO-4648, AASTMD1813, ISO 2589, SATRA TM48
2. Flexing index (Only applicable for cellulose board)
Evaluate the durability and fatigue performance of insole materials or products under repeated bending and flexing conditions. Simulate the usage conditions of insoles under repeated bending conditions to test their fold resistance. Insoles with good fold resistance are less likely to break or deform during prolonged use.

Test apparatus:
Fibre Board Flexing Tester GT-KB07
Fibre Board Flexing Tester is used to determine flex test for shoe insole fiberboard and applicable for common leather shoes and sneaker insole fiberboard, but not for toe cap, counter-heel, semi-back and special leather shoes and sneaker insole fiberboard.

Standards:
Annex ‘F’

QB/T 1472, BS 5131: 4.2, SATRA TM3

Temperature and Humidity Climatic Test Chamber GT-C52
Temperature Humidity Test Chamber is for conditioning of samples prior to testing. It also can be used for a variety of materials of high - low temperature alternating test. The test temperature, humidity, time can be programmed. Provides conditions of temperature form -40degree to +150degree and of humidity form 20% to 98

Standards of climatic test chamber:
CNS, ISO, JIS, ASTM, DIN, BS, IEC, NACE, UL,MIL
3. Abrasion Resistance (400 cycles)
Evaluate the wear resistance of the insole through abrasion tests to ensure it does not wear out or damage quickly after prolonged use.

Test apparatus:
IULTCS & Veslic Leather Abrasion Tester GT-KC01-1
This IULTCS & Veslic Leather Abrasion Tester is used for color fastness testing of leather, plastic and textile. Under the specified pressure, let white wool felt to do reciprocating abrasion to the surface of dye sample. After a specified count, to assess the color fastness of sample by checking the color change and fading of sample and the discoloration of white wool felt. Rubbing Fastness Tester can be used for dry abrasion testing and wet abrasion test.

Standards:
cl. 7.3.2.1 IS 15298 part 1
DIN 4843, ISO 11640, SATRA PM 173, AS/NZS 2210.2 section7.3
QB/T 2537, GB/T 20991 section 7.3, ISO 20868,
EN ISO20344 section 7.3, ISO 17700 Method A, GE-29
4. Water Absorption, mg/cm2 and Water Desorption, percent
Test the moisture absorption properties of the insole material to ensure it remains dry and comfortable during use. This is typically assessed through Water Absorption and Water Desorption tests.

Test apparatus:
Insole / Insock Absorption and Desorption Tester GT-KC07
This Insole / Insock Absorption And Desorption Tester is used to determine the water absorption and desorption of insole and insock for various shoes. The specimen, placed onto a wet base plate, is submitted to repeated flexing during under a given pressure (in the same manner as the insole of a shoe during working).

Standards
EN ISO 20344 section 7.2 , GB/T 20991 section 7.2
EN ISO 20347 section 5.7.3   AS/NZS 2210.2 section 7.2
EN 12746, ISO 22649, SATRA TM220, BS 3144 section 22
ISO5404, cl. 7.2.2 of IS 15298 part 1

The quality and performance of insoles directly affect wearing comfort and foot health. Through comprehensive insole material testing, the safety, comfort, and durability of insoles during use can be ensured.

Recently, Gachn group 4+4-color satellite-type flexographic printing press arrived in Africa and is about to begin installation and commissioning. With its outstanding performance and precise register technology, this satellite-type flexographic printing press is specifically designed for printing wide-format, thin, and difficult-to-control tension materials. Its arrival in Africa will inject new vitality into the local printing industry.

 

Equipment Highlights: Tailored to African Printing Needs

The core advantages of the Gachn Gourp 4+4color flexographic printing press are key to its ability to meet the demands of the African market.

Excellent Register Accuracy: The satellite-type structure ensures close contact between the printed material and the shared printing plate, minimizing tension fluctuations and deformation during drying. The press achieves register accuracy of ±15mm in the transverse direction and ±10mm in the longitudinal direction. Electronic registering is achieved without stopping the machine, ensuring high-quality printing even when printing roll-type PP woven fabrics as wide as 550-850mm.

Strong adaptability: It can handle roll materials with a maximum diameter of 1500mm. The unwinding reel uses a 6-inch air shaft and the rewinding reel uses an 8-inch air shaft. The print repeatability range is 400-1200mm. The photosensitive resin sheet supports thicknesses of 1.14/2.28mm. It can be used with 0.38mm double-sided tape, providing flexibility to meet diverse printing needs.

Efficient and stable operation: The maximum machine speed is 200m/min, and the maximum printing speed is 50-150m/min. It is equipped with 8 ceramic anilox rollers (LPI rollers can be customized upon request) and 8 printing cylinders (sizes determined by customer requirements). It also features 2 printing unit drying systems, a post-print drying system, and corona treatment equipment, ensuring both high printing efficiency and quality.

 

Installation Preparation: Detailed attention to detail lays a solid foundation for safety

Even when installing equipment thousands of miles away, preliminary preparation is crucial. Our team meticulously handles every step, from equipment transportation and protection to on-site planning.

Equipment Transportation and Inventory: Considering the potential for bumps, humidity fluctuations, and other issues during long-distance transportation, all equipment was packaged in custom protective packaging. Key components, such as the ceramic anilox roller (produced by Shanghai Murata, with a dynamic balancing accuracy of 10g) and the center roller (made of high-quality alloy steel, with a radial runout tolerance of ±0.010mm), were equipped with additional cushioning devices. Upon arrival at the site, technicians checked the parts list and individually verified core components, including the Inovance human-machine interface, Schneider circuit breaker, Shanghai Danma servo motor, and German FAG/Japanese NSK bearings, to ensure that no components were missing or damaged.

 

Site Planning and Environmental Preparation: Based on the equipment's dimensions (16.8L × 3W × 4.3H m, weighing approximately 20 tons), the installation area was determined in advance with the customer, obstacles were cleared, and the equipment lifting route was planned. Furthermore, the on-site power supply (total power consumption 125kW) and air supply conditions were checked to ensure they met equipment operating requirements. For example, the electric heating and temperature control system required a stable power supply, and the pneumatic components (Taiwan AirTAC) required normal air pressure.

 

Installation Process: Professional Operation, Step-by-Step Precision

1. Basic Component Installation: Stabilizing the Equipment's "Frame"

First, install the frame and center roller. The center roller, the core of the satellite printing press, features a hollow, double-layer structure with a surface plating exceeding 200µm. During installation, specialized tools are used to adjust its levelness to ensure a radial runout tolerance within ±0.010mm. Next, the drive system, including the servo motor traction unit and T-shaped timing belt, is installed to ensure synchronized operation of the drive rollers, laying the foundation for subsequent printing accuracy.

2. Printing Unit Assembly: Building the Core Printing System

Next, assemble the eight printing units. Each unit is equipped with a ceramic anilox roller, a print cylinder, and a closed doctor blade (Changhong brand, imported Danish technology). When installing the ceramic anilox roller, ensure its parallelism with the print cylinder to ensure even ink transfer. The closed doctor blade utilizes a fully enclosed aluminum alloy design to reduce solvent evaporation. During installation, precisely adjust the contact pressure between the doctor blade and the anilox roller to ensure effective squeegeeing. At the same time, two sets of video inspection equipment (from Wuxi Kesai) were installed to monitor print quality in real time.

3. Auxiliary System Installation: Improving Equipment Functionality

Tension Control System: A dual-station unwinding and rewinding device was installed, equipped with a magnetic powder brake, a low-friction cylinder (from Fujikura, Japan), and a smooth float roller. This provides automatic tension compensation and closed-loop control, ensuring stable tension during the printing process and preventing loosening or deviation.

Drying and Cooling System: Two printing unit drying systems and one post-print drying system were assembled, equipped with a constant temperature chamber (including heating tubes, intelligent temperature controller, and PID temperature control) to ensure precise and controllable drying temperatures. After the cooling and traction device was installed, the cooling effect was tested to ensure that the printed material quickly cooled and set.

Correcting System: An automatic EPC ultrasonic probe correcting system (from Best, Germany) was installed, supporting manual, automatic, and center return functions, with ±65mm left and right adjustment, ensuring precise positioning of the material during the printing process.

4. Electrical System Connection: Implementing Intelligent Equipment Control

Finally, the electrical system is connected and debugged, including wiring components such as the Inovance PLC, Schneider temperature controller, and frequency converter, as well as debugging the human-machine interface. During the connection process, circuit safety is strictly checked to prevent short circuits or poor contact. During debugging, the interoperability of various systems, such as the coordination between the tension control and the web-correction system, is tested to ensure the equipment's automated and intelligent operation.

 

Debugging and Training: Comprehensively Ensure Efficient Equipment Operation

Equipment debugging: Technicians first conduct a dry run to test the proper operation of various components, such as the servo motor's speed control, the drying system's temperature stability, and registration accuracy. Subsequently, a test print run is conducted using roll-formed PP fabric to test printing results at various print speeds (50-150 m/min). Registration accuracy is adjusted to ±0.15 mm horizontally and ±0.15 mm vertically to ensure compliance with customer production requirements.

Customer Training: Comprehensive training is provided to customer operators, covering daily equipment operation, maintenance, and troubleshooting. Detailed equipment technical documentation and operating manuals are also provided to ensure customers can operate the equipment independently and safely.

 

Empowering African printing, ushering in a new chapter of cooperation

Gachn has consistently provided high-quality printing equipment and services to global customers with professional technology and a rigorous approach. The installation of the GC 4+4-850 flexographic printing press in Africa is not only a delivery of equipment, but also a transfer of technology and experience. We are confident that with the successful commissioning of this equipment, it will help local customers improve printing efficiency and product quality, and promote the development of the African printing industry. Going forward, Gachn will continue to deepen its presence in the global market, providing more customers with customized printing solutions, and working together to create a new future for the printing industry!

The selection of high and low temperature servo motors requires focusing on the following core parameters:

Performance Parameters

1、Torque and Speed

Clarify the torque attenuation rate under extreme temperatures (e.g., torque reduction ≤10% at 120℃).

The speed adjustment range must meet low-temperature anti-slip requirements (e.g., polar equipment requires low-speed high torque).

2、Dynamic Response

The inertia ratio is recommended to be ≤10:1 (load inertia to rotor inertia ratio) to ensure rapid response during low-temperature startup.

Acceleration requirements (e.g., semiconductor manipulators require acceleration from 0 to 3000 rpm in <30 ms).

3、Precision Requirements

Positioning accuracy must account for thermal expansion effects (e.g., ±0.001 mm requires thermal compensation algorithms).

Encoder type selection: Use resolvers for low temperatures (anti-condensation) and optical encoders for high temperatures (temperature resistance ≥120℃).

4、Environment and Cost

Temperature Range: Specify stable operation requirements, e.g., from a minimum of -40℃ to a maximum of 120℃.

Initial Cost: Imported brands (e.g., Siemens, Yaskawa) are 30%~50% more expensive than domestic brands.

Maintenance Cost: Long-life designs can reduce replacement frequency (e.g., SYD series maintenance cycle of 20,000 hours).

5、Installation and Debugging

Load Inertia: Must be converted to the full load inertia on the motor shaft to avoid system adjustment difficulties.

Simulation Services: Suppliers should provide thermal simulation or dynamic load analysis reports.

6、Special Requirements

Brake Configuration: Brakes must be equipped to ensure safe stopping when there is a tendency for rotation.

Urgent Requirements: Custom models require a development lead time of 3-6 months.

Ctrl-Motor has been engaged in the R&D, production and sales of vacuum motors, high and low temperature motors-related drivers, stepper motors, servo motors, and reducers for 11 years. The high and low temperature motors can be adapted to any extreme conditions from -196℃ to 300℃, and the vacuum degree can reach 10-7pa, we can provide 10^7Gy radiation protection and salt spray protection products. 

High and low temperature motors are a specialized type of motor designed for stable operation in extreme temperature environments. They have special requirements regarding materials, lubrication, sealing, and manufacturing processes. They are widely used in various industrial and technological fields with demanding temperature requirements.

Here are the main industries where high and low temperature motors are applied:

I. Extreme Environments and Special Applications

Aerospace

Application Scenarios: Aircraft door actuation systems, engine starters, fuel pumps, environmental control systems (e.g., air conditioning compressors), robotic arms for space exploration equipment, Mars rovers.

Temperature Requirements: Must operate reliably in extremely low temperatures at high altitudes (-55°C or lower) as well as in high-temperature environments near engines.

Defense and Military

Application Scenarios: Drive and turret rotation systems for tanks and armored vehicles, missile rudder control, propulsion and auxiliary systems for naval vessels (especially submarines), field communication equipment.

Temperature Requirements: Must adapt to various global climatic conditions, from polar severe cold to desert heat, with extremely high reliability requirements.

Scientific Research and Laboratory Equipment

Application Scenarios: Environmental simulation test chambers (high/low temperature test chambers), moving parts within vacuum chambers, particle colliders, drive units for astronomical telescopes, polar research equipment.

Temperature Requirements: The experimental environment may range from ultra-low temperatures near absolute zero (-273°C) to high temperatures of several hundred degrees Celsius. Motors need to operate stably within these ranges without causing contamination (e.g., outgassing, volatilization).

 

II. Industrial Manufacturing and Process Control

Chemical and Oil & Gas Industry

Application Scenarios: Reactor agitators in refineries and chemical plants, pipeline valve control, liquefied natural gas (LNG) pumps, offshore drilling platforms.

Temperature Requirements: May be exposed to high-temperature steam, low-temperature cooling media, or be in flammable/explosive environments. Motors require explosion-proof and corrosion-resistant capabilities.

Food and Beverage Processing

Application Scenarios: Conveyor belt drives in freezing/cold storage facilities, agitators, filling equipment, high-temperature sterilization equipment.

Temperature Requirements: Must withstand low temperatures in cold storage (e.g., -40°C), and high-temperature steam and corrosive cleaning agents during washing and sterilization processes. Often must also comply with food-grade hygiene standards.

Plastics and Rubber Industry

Application Scenarios: Injection and mold clamping units of injection molding machines, drives for extruders.

Temperature Requirements: Motors are installed near high-temperature molds and need to withstand radiant heat and high ambient temperatures generated during equipment operation.

 

III. Civilian and Commercial Fields

New Energy Vehicles and Rail Transportation

Application Scenarios: Main drive motors for electric vehicles, air conditioning compressors, cooling water pumps; traction systems, door control, and air conditioning systems for high-speed rail and subways.

Temperature Requirements: Automotive motors must endure summer heat and winter cold, and themselves generate heat during operation, placing high demands on heat dissipation and cold-start performance. Rail transit motors also face outdoor climate challenges.

Medical Equipment

Application Scenarios: Medical centrifuges (e.g., blood separation), low-temperature refrigeration equipment, surgical robots, cooling systems in MRI (Magnetic Resonance Imaging) equipment.

Temperature Requirements: Some equipment needs to operate at ultra-low temperatures, while also requiring motors to run smoothly, with low noise and high precision.

Household Appliance Industry

Application Scenarios: Fans in high-end refrigerators, motors for rotating oven racks, drum drives for clothes dryers.

Temperature Requirements: Internal oven temperatures can reach 200-300°C, requiring motors capable of long-term heat resistance; freezer compartments in refrigerators require resistance to low temperatures.

 

Key Features of High and Low Temperature Motors

To adapt to these industries, high and low temperature motors typically possess the following characteristics:

Special Temperature-Resistant Materials: Use of high temperature-resistant insulation materials (e.g., Class H, C), high-temperature resistant permanent magnets (e.g., samarium-cobalt magnets), special sealing and lubrication materials.

Wide-Temperature Grease: Use of specialized grease that maintains good lubricating properties even at extreme temperatures.

Efficient Cooling/Heating Design: High-temperature motors focus on heat dissipation (e.g., adding cooling fans, water cooling jackets), while low-temperature motors may be equipped with heating belts to ensure cold starts.

Special Structural Design: Enhanced sealing to prevent condensation (low temperature) or harmful gases (high temperature) from intruding.

 

In summary, high and low temperature motors are the "core power" in numerous high-end equipment and special applications. They are essential wherever the operating environment temperature exceeds the range of standard motors (typically around -20°C to 40°C). Their application scope continues to expand with the development of technology and industry.

In the world of industrial equipment, ice storage units play a vital role. Their efficient operation not only ensures stable cooling for production and daily needs but also cuts costs for businesses. Proper maintenance is the key to extending their lifespan and keeping performance consistent—with the right care, your ice storage unit can last at least 5 years longer.

Daily Inspections: Don’t Overlook the Basics

Regularly check the unit’s exterior for damage and ensure all connections are tight. Loose screws should be tightened promptly to prevent component vibration from affecting stability. Also, inspect pipes for leaks: even minor drips, if ignored, can worsen over time, reducing cooling efficiency.

Cleaning: A Top Priority

Over time, dust and debris build up inside the unit, hindering heat dissipation and cooling performance. (Regularly clean) dirt from condenser and evaporator surfaces using professional cleaners—take care to avoid damaging components. Additionally, clean or replace air filters on schedule to ensure only clean air enters the unit, minimizing debris-related damage.
Electrical System Maintenance: Keep It Reliable
Check wires and cables regularly for damage or aging, and ensure all electrical connections are secure. Test control components like contactors and relays, replacing faulty ones promptly to prevent shutdowns or serious damage caused by electrical issues.

Lubrication: Reduce Wear and Tear

Follow the equipment manual to regularly add appropriate lubricants to moving parts like compressors and water pumps. Proper lubrication minimizes friction, reduces wear, and extends component life.

Maintaining an ice storage unit is a systematic process that requires attention to multiple areas. Through careful daily inspections, thorough cleaning, proper electrical upkeep, and timely lubrication, you can keep your unit in top condition. This not only extends its lifespan but also ensures reliable cooling, delivering long-term economic and social benefits.