Selecting a suitable high/low temperature servo motor requires a comprehensive consideration of environmental conditions, performance requirements, material compatibility, and system reliability. Below are the key steps and considerations:

1. Define Operating Environmental Conditions

Temperature Range: Confirm the minimum and maximum temperatures the motor must withstand (e.g., -40°C to +85°C), as well as the rate of temperature change.

Humidity, Dust, and Corrosiveness: High/low-temperature environments may involve additional factors (e.g., condensation, salt spray), requiring materials with appropriate protection ratings (IP rating).

Vibration and Shock: Mechanical strength may degrade under extreme temperatures, so the motor’s structural vibration resistance must be evaluated.

2. Key Performance Parameters

Torque and Speed:

At low temperatures, increased lubricant viscosity may raise starting torque, requiring additional margin.

At high temperatures, magnetic performance (e.g., permanent magnet demagnetization) may degrade, necessitating high-temperature-resistant materials (e.g., samarium-cobalt magnets).

Power Matching: To prevent overheating due to efficiency loss at high temperatures, calculate actual thermal dissipation under load.

Feedback System: Encoders or resolvers must operate reliably in extreme temperatures.

3. Materials and Structural Design

Temperature-Resistant Materials:

Housing: Aluminum alloy (lightweight) or stainless steel (corrosion-resistant).

Seals: Silicone or fluorocarbon rubber (resistant to low-temperature brittleness and high-temperature aging).

Lubricants: Fully synthetic grease (e.g., PTFE-based) suitable for a wide temperature range.

Thermal Management:

High-temperature environments: Enhance cooling (e.g., heat sinks, forced air cooling).

Low-temperature environments: Optional heating elements to prevent condensation.

4. Electrical Compatibility

Insulation Class: Select materials with at least Class F (155°C) or Class H (180°C) insulation.

Cables and Connectors: Use shielded cables resistant to high/low temperatures to prevent cracking or melting.

5. Brand and Certifications

Special Certifications: Such as military (MIL-STD), automotive (AEC-Q200), or aerospace standards.

Supplier Experience: Prioritize vendors with proven experience in high/low-temperature motor applications.

6. Testing and Validation

Environmental Simulation Testing: Test motor start-stop and load performance in extreme temperatures using thermal chambers.

Lifetime Testing: Evaluate performance degradation after long-term thermal cycling.

7. Cost and Maintenance

Total Cost of Ownership: Higher-spec motors may cost more but reduce downtime losses.

Maintenance Convenience: Modular designs simplify seal or bearing replacement.

Recommended Selection Process

Define Requirements: Environmental parameters, load curves, dynamic response needs.

Preliminary Model Selection: Screen motors based on torque-speed curves.

Field Testing: Conduct small-batch trials and monitor performance.

Common Pitfalls

Ignoring Startup Characteristics: Locked-rotor current may surge at low temperatures, requiring protective circuitry.

Over-Reliance on Spec Sheet Data: Manufacturer data is often measured under ideal conditions; real-world derating is necessary.

By following a systematic selection process, high/low-temperature servo motors can achieve stable operation in extreme environments, balancing performance and reliability.

Zhonggu Weike Power Technology Co., Ltd. is a National Specialized, Sophisticated, and Innovative Enterprise specializing in the R&D, manufacturing, and application of special motors for harsh environments, including vacuum, high-temperature, cryogenic, and radiation conditions. Our products are widely used in aerospace, satellite communications, space observation, biomedical engineering, and genetic sample storage.

Radiation Hardened Stepper Motors are specially designed for environments with ionizing radiation (e.g., X-rays, gamma rays, neutron radiation). These motors must maintain reliable operation under radiation exposure. Below are their primary applications and essential characteristics.

I. Typical Applications

Nuclear Industry & Power Plants

Nuclear reactors (control rod drives, valve adjustments, inspection equipment).

Nuclear waste handling systems (robotic arms, conveyor mechanisms).

Fusion experiments (e.g., precision positioning in tokamak devices).

Medical Radiation Environments

Radiotherapy equipment (e.g., collimator control in gamma knife or proton therapy systems).

Rotating mechanisms in CT/PET-CT imaging devices.

Aerospace & Deep Space Exploration

Satellite and space telescope adjustment mechanisms (exposed to cosmic rays).

Rover mobility and sampling systems (e.g., Mars/Moon exploration).

High-Energy Physics Experiments

Particle accelerators (e.g., beam control and detector positioning in CERN).

Military & Security Applications

Automated systems in nuclear submarines or weapons facilities.

Radiation-monitoring robots (e.g., post-Fukushima disaster response).

II. Key Features of Radiation-Hardened Motors

Radiation-Hardened Design

Materials: Radiation-resistant ceramics, specialty plastics, and stainless steel housing (avoiding degradable organics like rubber or epoxy).

Electronics: Radiation-hardened ICs (e.g., space-grade), opto-isolation, or simplified circuitry (reducing semiconductor reliance).

High Reliability

Certified for radiation hardening (Rad-Hard) to ensure performance stability under cumulative radiation doses.

Sealed construction or inert gas (e.g., nitrogen) filling to prevent contamination.

High-Temperature Resistance & Heat Dissipation

Efficient thermal management (e.g., metal housings, conductive coatings) for radiation-induced high temperatures.

Low Maintenance & Long Lifespan

Brushless designs or solid lubricants to avoid lubricant breakdown from radiation.

Electromagnetic Compatibility (EMC)

Shielding against electromagnetic interference (e.g., nuclear EMP) to prevent signal disruption.

Precision Control & Torque Stability

Maintains micro-stepping accuracy without step loss (critical for medical/industrial positioning).

III. Additional Notes

Difference from Standard Motors: Radiation-resistant variants are costlier and often custom-built.

Alternatives: In low-radiation settings, shielded standard motors may suffice for cost savings.

Ctrl-Motor has been engaged in the R&D, production and sales of vacuum motors, high and low temperature motors,reducers,etc for 12 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. 

In modern industrial automation, motors serve as core driving components and are widely used in various equipment and systems. With continuous technological advancements, the performance requirements for motors have become increasingly stringent. For instance, in high-temperature environments, elevated temperatures can significantly affect motor performance, efficiency, and lifespan, as detailed below:

1. Reduced Efficiency

Increased Resistance: The resistance of motor windings (copper wires) rises with temperature, leading to higher copper losses (I²R) and reduced efficiency.

Changes in Iron Losses: High temperatures may exacerbate eddy current losses and hysteresis losses in the core (especially in permanent magnet motors), further decreasing efficiency.

2. Decreased Output Power

Thermal Limitations: Motors are typically designed based on rated temperatures. Under high temperatures, heat dissipation capacity declines, potentially forcing derated operation (reducing output power) to prevent overheating.

Demagnetization of Permanent Magnets (PMSMs): High temperatures can weaken the magnetic properties of permanent magnets, reducing magnetic field strength and consequently lowering torque and power output.

3. Accelerated Insulation Aging

Insulation Material Lifespan: High temperatures accelerate the aging of motor insulation materials (e.g., enameled wires, slot insulation). Empirical rules indicate that insulation life halves for every 10°C temperature increase (Arrhenius Law).

Breakdown Risk: Prolonged exposure to high temperatures may cause insulation cracking, leading to short circuits or ground faults.

4. Bearing and Lubrication Issues

Lubrication Failure: High temperatures reduce the viscosity or cause oxidation of lubricating grease, resulting in poor lubrication and increased bearing wear.

Mechanical Deformation: Thermal expansion of bearings or shafts may alter fitting clearances, causing vibration or seizing.

5. Impact on Control Systems

Sensor Drift: Temperature-sensitive components (e.g., thermocouples, Hall sensors) may produce erroneous readings, affecting control accuracy.

Electronic Component Failure: High temperatures reduce the reliability of drive circuits (e.g., IGBTs, capacitors), increasing failure rates.

6. Other Potential Issues

Thermal Stress: Differences in thermal expansion coefficients may cause structural deformation (e.g., between the stator and housing).

Cooling System Overload: Forced cooling systems (fans, liquid cooling) may operate at full capacity for extended periods in high-temperature environments, shortening their lifespan.

Countermeasures

Optimized Heat Dissipation: Enhance ventilation, adopt liquid cooling, or implement heat pipe technology.

Material Selection: Use high-temperature-resistant insulation materials (e.g., Class H insulation) and high-temperature lubricants.

Temperature Monitoring: Install temperature sensors for overheating protection or power derating.

Environmental Control: Avoid operating motors in enclosed or high-temperature areas; install additional cooling systems (e.g., air conditioning) if necessary.

Conclusion

High temperatures comprehensively affect a motor’s electrical performance, mechanical reliability, and control system stability. Proper thermal design and temperature management are crucial to ensuring stable motor operation in high-temperature environments. If your application requires prolonged operation under high temperatures, it is advisable to use motors specifically designed for such conditions to ensure sustained and reliable performance.

Zhonggu Weike Power Technology Co., Ltd. is a National Specialized, Sophisticated, and Innovative Enterprise specializing in the R&D, manufacturing, and application of special motors for harsh environments, including vacuum, high-temperature, cryogenic, and radiation conditions. Our products are widely used in aerospace, satellite communications, space observation, biomedical engineering, and genetic sample storage.

With a professional team in technology, manufacturing, and service, as well as Asia’s most comprehensive environmental and dynamic transmission testing facilities, we are committed to providing expert, high-quality solutions for every customer.

Overview

ICI pilling tester is a professional test equipment specially used to evaluate the anti-pilling performance of textile surface. The instrument provides objective data for textile quality control by simulating the friction effect of fabrics in daily use.

Main uses

1. Textile quality evaluation

(1) Used to determine the ability of various woven fabrics, knitted fabrics and non-woven fabrics to resist surface pilling during wearing and washing.

(2) Evaluate the anti-pilling performance of different fabrics (such as wool, cotton, chemical fiber and their blended fabrics).

(3) Provide objective basis for product quality control for textile manufacturers.

2. Product R&D support

(1) Help R&D personnel compare the anti-pilling properties of different fiber materials, yarn structures and fabric structures.

(2) Evaluate the effects of new textile materials or special finishing processes (such as anti-pilling treatment).

(3) Provide data support for product improvement and optimize production process parameters.

3. Standard compliance testing

(1) Implement pilling tests of international standards (such as ISO 12945), national standards (such as GB/T 4802.1) and industry standards.

(2) Provide compliance test reports for product certification.

(3) Ensure that exported textiles meet the quality requirements of the target market.

4. Consumer experience prediction

(1) Simulate the surface changes of fabrics under normal use conditions.

(2) Predict the appearance retention of products after actual wearing and washing.

(3) Provide consumers with product quality reference.

Application industries

(1) Garment manufacturing industry (especially high-end suits, sweaters and other products prone to pilling).

(2) Home textile industry (sheets, sofa fabrics, etc.).

(3) Industrial textiles.

(4) Quality inspection agencies and third-party testing laboratories.

(5) Textile colleges and research institutions.

ICI pilling tester provides the textile industry with an important tool for evaluating product durability and appearance retention through standardized testing methods, which plays an important role in improving product quality and consumer satisfaction.

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Say goodbye to traditional inefficiency and embrace intelligent loading - Jiachuang-Jina automatic loading machine for bagged cement leads the industry change

In the cement industry, traditional manual loading methods have long faced pain points such as low efficiency, high cost, prominent safety hazards and high dependence on manpower. In response to these challenges, Gachn Jeenar Company innovatively launched an automatic loading machine for bagged cement. With intelligent and automated technology, it completely reshapes the loading process and provides cement production companies with efficient, stable and safe excellent loading solutions!

Core advantages:

Efficiency leap, production capacity doubled:

Equipped with high-precision industrial robotic arms and intelligent transmission systems, the loading speed is as high as 120 tons/hour, which is more than 300% higher than manual efficiency, easily meeting peak order demand and greatly increasing loading throughput.

Precise stacking, stable and reliable:

Using advanced positioning technology and adaptive stacking algorithms, ensure that bagged cement is neatly and stably stacked, effectively avoiding tilting and damage caused by uneven stacking during transportation, and significantly reducing the cargo damage rate.

Reduce costs and increase efficiency, and benefit in the long run:

One-button start, fully automated operation, significantly reducing manual dependence and related training investment, and effectively reducing comprehensive operating costs. The equipment investment payback period is short, achieving long-term economic benefits.

Flexible adaptation, intelligent interconnection:

Compatible with a variety of vehicle models (such as open cars, vans, etc.) and packaging specifications (50kg/ton bags, etc.). Support seamless docking with the factory MES/ERP system to achieve real-time monitoring and management of loading data, and assist in production decision-making.

Safety and environmental protection, people-oriented: The fully enclosed design effectively reduces dust dispersion and creates a cleaner working environment; completely eliminates the safety hazards caused by manual handling, ensures personnel safety, and fully complies with green factory construction standards.

Customer testimony:

After successful application at Jinniu Cement Plant, loading efficiency increased by 4 times, saving about 200 yuan/hundred tons of labor costs annually, and customer satisfaction increased significantly! The equipment operates stably, has a very low failure rate, and is easy to maintain, which solves the long-standing problem of "difficult recruitment" in one fell swoop.

Why choose Gachn-Jeenar?

Deep industry accumulation: Focusing on the research and development of automation equipment in the cement industry for 8 years, with mature and reliable technology and a deep understanding of industry needs.

Tailor-made solutions: Provide personalized solutions based on the actual working conditions of the enterprise, and provide full-process professional support from installation and commissioning to personnel training.

Worry-free after-sales service: 24-hour rapid response, relying on a complete service network covering the whole country to ensure the efficient and stable operation of the equipment throughout its life.

Have you ever wondered how the packaging bags for putty powder building materials and waterproof woven bags for cement are produced? The answer lies in a technology called "laminating"! Today, let's reveal the hero behind the scenes - laminating machine, and see how it uses high temperature and pressure to turn ordinary materials into powerful composite materials. ​

1. The magic of laminating machine: from plastic particles to composite film ​

The core work of the laminating machine is like "dressing" the material. Taking the extrusion laminating machine as an example, its work process is divided into four steps: ​

Feeding: Plastic particles are added to the hopper and fed into the extruder through the conveying device.

Heating and melting: The particles are heated, sheared and plasticized in the extruder to form a uniform molten plastic melt.

Extrusion coating: The molten plastic melt is evenly extruded through the extruder head (die lip) and coated on the surface of the running substrate to form a continuous film layer.

Cooling and solidification: The substrate coated with the film layer is quickly cooled by a cooling roller (usually a chrome-plated mirror roller) to solidify the molten plastic and form a flat and firm composite film.

2. With the support of black technology, these laminating machines are a bit "ruthless" ​

Different types of laminating machines have their own unique skills, especially in industrial production, they are synonymous with efficiency and precision. ​

Gachn group laminating machine: the ceiling of efficiency and precision ​

Imagine that a machine can "leak" dozens of meters of film per minute, and can also control the thickness error of the film to ±0.01! Gachn laminating machine has done this. It is equipped with an intelligent control system that can monitor the extrusion speed, temperature and substrate tension in real time to ensure that the transparency and tensile strength of each roll of film of different woven fabrics are exactly the same. ​

Gachn group(GACHN JEENAR) laminating machine: the behind-the-scenes promoter of high-end films ​

It can turn PP&PE materials into thin and tough films with efficient extrusion and precise temperature control technology. A "technical responsibility" indeed.​

3. Environmentally friendly and versatile, the "dream machine" of industrial production

In addition to the technical hard core, modern laminating machines have also "rolled" to new heights in environmental protection and multi-function. Many equipment use energy-saving heating systems, which reduce power consumption by 30% compared with traditional models; the exhaust gas recovery device equipped can convert harmful gases in the production process into harmless substances.

4. The future is promising: the infinite possibilities of laminating technology

From daily necessities to high-precision materials, laminating machines use high temperature and technology to quietly change our lives. The next time you see plastic composite packaging, you might as well pay more attention to it - this thin layer of film contains the wisdom and innovation of countless engineers. If you are more curious about laminating technology, or want to know about application cases in specific fields, please leave a message in the comment area to discuss!

I. Instrument Introduction

ICI Mace Snag Tester is a test device used to evaluate the snagging tendency of fabrics when subjected to sharp objects. The instrument is widely used in the anti-snagging performance test of textiles, knitwear, woven fabrics and other materials, and is suitable for quality control, product development and standard testing.

II. Test Standards

ICI Mace Snag Tester is usually tested according to the following standards:

(1)ASTM D3939 (Standard Test Method for Snagging Resistance of Fabrics (Mace Test Method))

(2)ISO 16547 (Textiles — Determination of fabric propensity to snagging — Mace test)

(3)BS 5811 (British Standard)

III. Preparation before testing

1. Instrument inspection

(1) Make sure the instrument is placed horizontally to avoid vibration interference.

(2) Check whether the rotating arm and test pin (mace) are intact and free of wear or deformation.

(3) Ensure that the inside of the test box is clean and free of residual fibers or impurities.

2. Sample preparation

(1) Sample size: at least 200mm × 200mm (it is recommended to cut into a circle to fit the test box).

(2) Number of samples: usually 3-5 samples are tested to improve data accuracy.

(3) Sample status: should be humidified for at least 24 hours under standard atmospheric conditions (20±2℃, 65±4% RH).

3. Calibration (if necessary)

Use standard calibration fabric to calibrate the instrument to ensure consistency of test results.

Check whether the rotation speed meets the standard (usually 60±2 rpm).

IV. Test steps

1. Install the sample

(1) Fix the sample flatly on the sample clamp in the test box to ensure that there are no wrinkles.

(2) Adjust the sample tension so that it is close to the inner wall of the test box but not overstretched.

2. Set test parameters

(1) Test time: usually 600 revolutions (about 10 minutes), or adjust according to standard requirements.

(2) Rotation speed: 60 rpm (default value).

3. Start the test

(1) Close the test box door and ensure that it is securely locked.

(2) Press the start button and the instrument starts running.

(3) Avoid opening the door or interfering with the instrument operation during the test.

4. End of the test

(1) After the instrument stops automatically, remove the sample.

Inspect the surface of the sample for any snagging and record the number, length and severity of snagging.

V. Result Evaluation

1. Rating Method

Usually, visual rating method is used to judge by comparing with standard sample photos or rating cards:

Grade 1: Severe snagging (many long snagging)

Grade 2: Moderate snagging (obvious snagging)

Grade 3: Slight snagging (a few short snagging)

Grade 4: Almost no snagging (very slight)

Grade 5: No snagging (perfect)

2. Data Recording

(1) Record the snagging level of each sample.

Calculate the average value as the final test result.

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4-layer Stainless Steel Shelf

1. Durability: Stainless steel is known for its durability. It is resistant to rust, corrosion, and staining. This makes it suitable for use in environments where moisture or exposure to various elements might be a concern.
2. Hygiene:Stainless steel is easy to clean and maintain, which is particularly important in environments where cleanliness is crucial, such as kitchens, hospitals, or laboratories.
3. Strength:Stainless steel has high tensile strength, which means it can withstand heavy loads without bending or warping. This makes it suitable for storing heavy items or equipment.
4. Aesthetic Appeal:Stainless steel has a sleek and modern appearance that can enhance the overall aesthetic of a space. It is often used in contemporary designs and is versatile enough to complement various styles.
5. Versatility: Stainless steel shelves can be used in a variety of settings, including kitchens, industrial spaces, laboratories, and more. They are suitable for both residential and commercial applications.
6. Resistance to Temperature Fluctuations: Stainless steel can withstand extreme temperature changes without losing its structural integrity. This property is advantageous in environments where temperature variations are common.
7. Longevity:Due to its resistance to corrosion and wear, stainless steel shelves tend to have a longer lifespan compared to shelves made from other materials.

Commercial Gas Rice Steamer Machine Steamer Cabinet

The gas rice steaming cabinet has the characteristics of high efficiency, energy saving, fast cooking, multi-function, easy operation and cleaning, etc.

Characteristics of a gas steamer cabinet:
1.Efficient and Energy-saving: Gas steamer cabinets typically use natural gas or liquefied gas as their energy source, which is more energy-efficient compared to electric power, helping to reduce costs.
2.Quick Steaming: Using gas as an energy source provides high temperatures, allowing for the rapid generation of steam to sufficiently steam food in a shorter time.
3.Temperature Control: They feature precise temperature control, allowing for adjustments to steam temperature as needed, ensuring even heating of food.
4.Multi-functionality: Apart from steaming rice, some gas steamer cabinets are designed for multi-purpose use, suitable for steaming vegetables, meats, and other foods.
5.Ease of Operation: Typically designed with simplicity in mind, they are easy to operate with intuitive control panels and buttons.
6.Space-saving: Compared to traditional steaming equipment, gas steamer cabinets are usually more compact in design, helping to save kitchen space.
7.Easy to Clean: Most gas steamer cabinets are made of stainless steel or other easy-to-clean materials, making them relatively easy to maintain.
8.Durable: Constructed from sturdy and durable materials, gas steamer cabinets generally have a long lifespan.

Electric Oven and Gas Oven

The choice between a gas or electric oven depends on various factors including cooking preferences, energy costs, and kitchen setup. Here are some considerations for each type:

Electric Ovens for Baking

Pros:
1.Even Heat Distribution:
●Electric ovens typically provide more consistent and even heat, which is crucial for uniform baking.
●They often have multiple heating elements that ensure the temperature is evenly distributed throughout the oven.

2.Temperature Accuracy and Stability:
●Electric ovens generally have better temperature control and stability.
●They maintain the set temperature more consistently, reducing fluctuations that can affect baking results.

3.Dry Heat:
●Electric ovens produce a dry heat, which is ideal for achieving crispy textures in baked goods like cookies, pastries, and crusts.

4.Convection Features:
●Many electric ovens come with convection settings that use a fan to circulate hot air, promoting even browning and faster cooking times.
●This is particularly useful for baking multiple trays at once.

5.Self-Cleaning Options:
●Electric ovens often come with self-cleaning features that make maintenance easier.

Cons:
1.Operational Costs:Electric ovens can be more expensive to run, especially in areas where electricity rates are high.
2.Preheating Time:Electric ovens typically take longer to preheat compared to gas ovens, which might be inconvenient for some users.
3.Power Outages:In the event of a power outage, an electric oven becomes unusable, which can be a significant drawback.

Gas Ovens for Baking

Pros:
1.Moist Heat:Gas ovens produce a more humid heat, which is beneficial for baking breads and items that require a moist interior and good rise.
2.Operational Costs:In areas where natural gas is less expensive than electricity, gas ovens can be cheaper to operate.
3.Faster Preheating:Gas ovens typically preheat faster than electric ovens, which can save time.
4.Usage During Power Outages:Gas ovens can still be used during power outages, provided they have a manual ignition option.

Cons:
1.Uneven Heat Distribution:Gas ovens often have hot spots and less even heat distribution, which can result in uneven baking.
2.Temperature Control:Maintaining a precise and consistent temperature can be more challenging in gas ovens.
3.Humidity:The humid heat produced by gas ovens might not be ideal for achieving crispy textures in baked goods.
4.Installation Costs:If a gas line is not already installed, the cost to install one can be significant.
5.Safety Concerns:There is a potential risk of gas leaks, which requires proper maintenance and monitoring.

Conclusion

For most baking tasks, electric ovens are generally preferred due to their even heat distribution, temperature accuracy, and features like convection baking. However, gas ovens have their own advantages, particularly for baking items that benefit from a moist cooking environment, such as breads. The choice ultimately depends on the specific baking needs, budget, and personal preferences.