Product Description

Product Description

Basic Feature

Material: PTFE

Density (at delivery):2.3 g/cm³

temperature range: -240°C — + 260°C

short term up to +315°C

pressure: from vacuum up to 200 bar

Chemical resistance:pH 0 -14

Properties and advantages of ptfe:
1. High temperature resistance — operating temperature up to 250ºC.
2. Low temperature resistance — good mechanical toughness;5% elongation can be maintained even when the temperature drops to -180ºC.
3. Corrosion resistance — inert to most chemicals and solvents, strong acid and alkali resistance, water and various organic solvents.
4. Weather resistance — excellent aging life in plastics.
5. High lubrication — lowest friction coefficient among CHINAMFG materials.
6. Non-adhesion — the surface tension of CHINAMFG materials is small and does not adhere to any material.
7. Non-toxic — with physiological inertia, no adverse reactions after long-term implantation of artificial blood vessels and organs

Standard Size(mm)

Length * Width:	1/16″*4″
Thickness:

Package

1). Packed by carton box by roll;

2). Packed by plywood case

Product application

 

The application of fluoropolymer products is developing fast in recent years.

PTFE is CHINAMFG as ” king of plastic”.As an alternative of traditional plastic, PTFE and other modified PTFE products are now widely used for their many advantages:

Non-stick;

Corrosion resistance;

CHINAMFG and sunshine tolerance;

Thermal stability;

Fire resistance;

Physiological inertia;

Electric insulation.

 

Here shows some main fields that PTFE products are widely used.

Chemical industry

Aerospace industry

Medical instruments

Electronic engineering

Semi-conduct industry

Machinery industry

 

Company Profile

HangZhou CHINAMFG Mechanical Part founded in 2571,located in beautiful Xihu (West Lake) Dis. disctrict following the high technology of CHINAMFG Slovakia.Our company mainly managed in spiral wound gaskets,PTFE gaskets,high temperature graphite gaskets,expanded PTFE gaskets,filled PTFE sheet,graphite sheet,Non asbestos sheet,disc spring,and other mechanical parts and valve,pump using gland packing.

We have large stock all the year around and we compete with good price,quick delivery, enthusiastic aftersale service to serve our customers around the world. Our all products are widely using in Metallurgy,Chemicals,Petrol Chemical industry,Electric industry,shipbuilding industry and others. We cooperate with main manufactures this field and exports our products to Europe,Southeast Asia,Africa,etc and get good feedback.Extremely good sealing performance; Non asbestos gasket working in top temperature upto 800ºC. Production technology in the international leading level, material can help plant save cost.

Our Tenet:

• Listen carefully to customers requirement.
• Build products quality with heart.
• Provide satisfying service with honest
• Remember good after-sale service is the only reason we live.

 

Certifications

exhibition

• Raw Material

  The self-developed advanced production equipment meets the diversified demands of products and saves cost and materials for users.

• Technical Assistance

  Efficient machining center to provide customers with a variety of conventional and unconventional quality sealing components, to speed up the production cycle, improve delivery speed.

• R & D Capabilities

  We have signed contracts with many express companies, such as Fedex, UPS, TNT, so as to facilitate various transportation needs and make transportation more rapid and convenient.

Packaging & Shipping

FAQ

 

Q1. Can you provide factory price?

A: Our products are directly supplied from CHINAMFG MECHNICAL factory at wholesale price. We will try our best to keep our price competitive in the market.

Q2. How can you guarantee quality?
A: We strictly implement ISO9001 quality system to control product quality.
Always have pre-production sample before mass production.
Always make final inspection before shipment.
We are a professional manufacturer with strong R&D team. CHINAMFG MECHNICAL equipped with leading laboratory testing equipment and professional testing personnel to ensure the stability of production and quality of products.

Q3. Can I have a sample order?
A: Yes, we welcome sample order to test and check product quality. Customized sample is also welcomed. 

Q4. What is your production lead time?
A: For mass production lead time, normally is 2-4 weeks after order confirmation according to volume and plHangZhou.

Q5. What is your mode of transportation and what about the transportation time?
A: For small sample delivery by courier, DHL, UPS, FedEx or TNT usually takes 3-5 days to arrive. 
For mass production cargo, airline and sea shipment generally take 7-45 days to arrive.
Above is in general condition and varies due to transportation distance and national policy.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

What are the Maintenance Requirements for Sleeve Couplings to Ensure Optimal Performance?

Proper maintenance is essential to ensure the optimal performance and longevity of sleeve couplings. Regular inspections and maintenance practices help identify early signs of wear, misalignment, or other issues that may affect the coupling’s performance. Here are some maintenance requirements for sleeve couplings:

1. Regular Visual Inspections:

Perform visual inspections of the sleeve coupling regularly. Look for signs of wear, corrosion, or damage on the coupling surface. Check for any visible misalignment between the shafts connected by the coupling.

2. Lubrication:

Some sleeve couplings may require lubrication to reduce friction and wear. Check the manufacturer’s recommendations for the appropriate lubricant and lubrication interval.

3. Check for Misalignment:

Monitor the shaft alignment periodically to ensure that the coupling is not subjected to excessive misalignment. Misalignment can lead to premature wear and failure of the coupling and connected equipment.

4. Inspect Fasteners:

Check any fasteners, such as set screws or clamps, that secure the sleeve coupling to the shafts. Ensure they are tight and secure to prevent any slipping or movement.

5. Evaluate Operating Conditions:

Assess the operating conditions of the motion control system regularly. Consider factors such as temperature, humidity, vibration, and exposure to corrosive substances. Make necessary adjustments or upgrades to protect the sleeve coupling from adverse conditions.

6. Balance the Coupling:

If the coupling operates at high speeds, balancing may be necessary to prevent excessive vibration and ensure smooth performance. Consider dynamic balancing for high-speed applications.

7. Replace Worn or Damaged Couplings:

If visual inspections reveal signs of significant wear, damage, or deformation, it is essential to replace the sleeve coupling promptly. Continuing to use a damaged coupling can lead to further issues and compromise system performance.

8. Follow Manufacturer’s Guidelines:

Always follow the manufacturer’s maintenance guidelines and recommendations specific to the sleeve coupling model. Adhering to these guidelines will ensure that the coupling performs as intended and maintains its service life.

9. Record Keeping:

Keep records of maintenance activities and inspections for each sleeve coupling in the system. This recordkeeping will help track the coupling’s performance over time and identify any recurring issues.

By following these maintenance requirements, motion control systems can maintain the optimal performance of sleeve couplings, minimize downtime, and extend the life of both the coupling and connected equipment.

What are some Real-world Examples of Successful Sleeve Coupling Installations and their Benefits?

There are numerous real-world examples of successful sleeve coupling installations in various industries, each demonstrating the benefits of using these couplings in different applications. Here are some examples:

• Pump Systems: Sleeve couplings are commonly used in pump systems to connect the motor shaft to the pump impeller. The simplicity and ease of installation of sleeve couplings make them a popular choice in this application. Benefits include reliable power transmission, easy maintenance, and cost-effectiveness.
• Conveyor Systems: In conveyor systems, sleeve couplings are used to connect the conveyor motor to the driving pulley shaft. The ability to accommodate misalignment and the low maintenance requirements of sleeve couplings contribute to the smooth operation and long service life of these systems.
• Automation Machinery: Sleeve couplings play a crucial role in various automation machinery, such as robotics and CNC machines. Their compact design and torsional flexibility ensure precise motion control and efficient power transmission.
• Industrial Mixers and Agitators: Sleeve couplings are used in mixers and agitators to connect the motor shaft to the mixing impeller or agitator. The ability to handle misalignment and dampen vibrations helps improve the equipment’s performance and reliability.
• Machine Tools: In machine tools, such as lathes and milling machines, sleeve couplings are utilized for connecting the motor to the tool’s spindle. The backlash-free characteristics of some sleeve couplings contribute to the precision and accuracy of machining operations.
• Automotive Industry: In the automotive industry, sleeve couplings are used in various components, such as windshield wipers, power windows, and power seats. Their compact size and ease of installation make them suitable for these automotive applications.
• Printing Equipment: Sleeve couplings are commonly used in printing presses to connect the motor to various rollers and cylinders. The simple design and reliable performance of sleeve couplings contribute to the efficiency of printing processes.

The benefits of sleeve couplings in these real-world examples include:

• Easy Installation: Sleeve couplings are easy to install, reducing downtime during equipment assembly or maintenance.
• Misalignment Compensation: Sleeve couplings can accommodate minor misalignments, reducing the risk of shaft damage and increasing the equipment’s lifespan.
• Vibration Damping: Sleeve couplings dampen vibrations and shocks, minimizing stress on connected components and extending their service life.
• Cost-effectiveness: Sleeve couplings offer a cost-effective solution for many power transmission applications, making them a popular choice in various industries.
• Low Maintenance: Sleeve couplings require minimal maintenance, leading to reduced operating costs and increased productivity.
• Torsional Flexibility: The torsional flexibility of sleeve couplings allows for smooth power transmission, reducing the risk of equipment damage due to sudden torque spikes.

These real-world examples demonstrate how sleeve couplings contribute to the efficiency, reliability, and performance of diverse mechanical systems in numerous industrial settings.

Key Design Considerations for Using Sleeve Couplings in Motion Control Systems

When incorporating sleeve couplings into motion control systems, several important design considerations should be taken into account to ensure optimal performance and reliability:

• Shaft Alignment: Proper shaft alignment is crucial for sleeve couplings to function effectively. Misalignment can lead to increased wear, vibration, and reduced efficiency. Ensuring the shafts are aligned within acceptable tolerances will maximize the coupling’s performance and lifespan.
• Torque and Speed Ratings: Evaluate the motion control system’s torque and speed requirements to select a sleeve coupling that can handle the specified loads. Overloading the coupling can cause premature failure and compromise system performance.
• Shaft Size and Fit: Ensure the sleeve coupling’s inner diameter matches the shafts’ outer diameter accurately. An improper fit may result in slippage or decreased torque transmission. The sleeve coupling’s size and fit should be carefully checked during installation.
• Environmental Conditions: Consider the operating environment’s temperature, humidity, and exposure to dust or corrosive substances. Choose a sleeve coupling material that can withstand these conditions and resist degradation over time.
• Dynamic Balance: Sleeve couplings should be dynamically balanced to minimize vibration during operation. Unbalanced couplings can lead to increased stress on connected equipment and may cause premature wear and failure.
• Operating Speed: Be mindful of the motion control system’s operating speed. At high speeds, centrifugal forces may come into play, affecting the coupling’s performance. In such cases, using a flanged sleeve coupling or other high-speed coupling types may be more suitable.
• Installation and Maintenance: Follow proper installation procedures to ensure the coupling is securely and accurately mounted on the shafts. Routine maintenance should also be performed to check for signs of wear, misalignment, or other issues that might affect the coupling’s performance.
• Resonance and Damping: Consider the system’s natural frequencies and possible resonance points. Sleeve couplings offer some vibration damping characteristics, but additional measures like tuning and damping elements may be required to avoid resonance issues.
• System Flexibility: Sleeve couplings offer flexibility to accommodate minor misalignments, but the system’s overall flexibility should be assessed to ensure the coupling’s compensation capabilities do not lead to excessive flexing or bending of other components.

By carefully addressing these design considerations, motion control systems can benefit from the advantages of sleeve couplings, such as simplicity, cost-effectiveness, and misalignment compensation. Ensuring proper selection, installation, and maintenance will contribute to smooth and efficient power transmission, leading to reliable and precise motion control performance.

editor by CX 2024-04-22