| Type: | Graphite Shaft |
|---|---|
| Composition: | Graphite |
| Carbon Content: | High-Carbon |
| Grade: | Industrial Grade |
| Forming Way: | Isostatic Graphite |
| C Content: | 99.99% |
| Samples: |
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| Customization: |
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Graphite rotor is a commonly used critical component in vacuum pumps, especially in environments with high vacuum or corrosive gases. It is typically employed in rotary vacuum pumps, such as molecular pumps and turbo molecular pumps.
Material: Graphite rotors are made from graphite, a material known for its excellent high-temperature resistance, chemical stability, and mechanical strength. This enables graphite rotors to operate in various harsh vacuum environments.
Structure: Graphite rotors usually feature a design with rotational symmetry, allowing for the uniform extraction of gases during operation. They may consist of a series of spiral or helical shapes, contributing to the efficiency of the vacuum pump.
High Temperature Resistance: Graphite rotors exhibit excellent resistance to high temperatures, enabling them to operate effectively in high-temperature environments without failure. This makes them particularly well-suited for applications that involve handling high-temperature gases or operating under elevated temperature conditions.
Corrosion Resistance: High-purity graphite typically demonstrates outstanding resistance to corrosion, providing an advantage in handling corrosive gases or chemicals.
Lightweight: Graphite is a relatively lightweight material, aiding in reducing rotor inertia, making it easier to achieve high-speed rotation, and enhancing pump efficiency.
Self-Lubrication: Graphite possesses self-lubricating properties, reducing friction, extending the lifespan of graphite rotors, and decreasing maintenance requirements.
Thermal Conductivity: Graphite exhibits excellent thermal conductivity, aiding in the uniform dispersion of heat in high-temperature environments and preventing overheating.
Stability: Graphite rotors typically exhibit stable mechanical performance during operation, maintaining stable operational status over extended periods.
Manufacturability: Graphite is relatively easy to machine, allowing for the manufacturing of various complex shapes to accommodate different pump designs and requirements.
Wide Applications: Due to its superior properties, graphite rotors find extensive applications in areas such as vacuum pumps, gas separation, and the chemical industry, among others.
| Item | Unit | Guarantee value | Typical value |
| Bulk Density | g/cm³ | ≥1.72 | 1.74 |
| Specific Resistance | μΩ.m | ≤9 | 8.5 |
| Flexural Strength | Mpa | ≥13.5 | 15.5 |
| Compressive Strength | Mpa | ≥32 | 38 |
| Termal Conductivity | W//mk | ≥120 | 140 |
| Ash Content | % | ≤0.2 | 0.1 |
Graphite rotors find wide applications in various rotating equipment, including:
>>Vacuum Pumps: The most common application is in vacuum pumps, where graphite rotors are used to create a vacuum environment. This type of vacuum is often employed in scientific research, laboratory applications, semiconductor manufacturing, medical devices, and various industrial processes.
>>Gas Separation and Processing: Graphite rotors are also utilized in gas separation and processing systems. They assist in extracting, compressing, and treating gases to meet specific purity requirements, such as oxygen, nitrogen, and others.
>>Chemical Industry: In the chemical industry, graphite rotors are employed in vacuum drying, distillation, and other processes to remove unwanted gases or vapors, ensuring that reactions take place in an ideal, gas-free environment.
>>Aerospace: In the aerospace sector, graphite rotors can be used to simulate space environments, test vacuum containers for aerospace components, or create experimental conditions under low pressure.
>>Medical Devices: In medical devices, such as nuclear magnetic resonance (NMR) instruments and electron microscopes, graphite rotors are used to maintain a vacuum environment within the equipment, ensuring its proper operation.
>>Laboratory Equipment: Graphite rotors are also commonly found in laboratory equipment, such as vacuum furnaces, vacuum freeze dryers, etc., used for processing samples under laboratory conditions.
Q1: What information should I let you know if i want to get a quotation?
A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly supply us drawings).
The required more information, such as Surface Condition, Tolerance Request, The Quantity, and other mechanical and technical details.
If it is possible, please also provide the application of products, we will recommend the most suitable products with details for confirmation.
Q2: How do you gurantee the quality of the products?
A: Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.
Q3: Can you guarantee the prompt delivery?
A: Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.
Q4: What is your lead time?
A : It usually needs about 15- 20 days after receiving the PO.
Q5 : What is your payments terms?
A : T/T, L/C, Western Union, etc., could be acceptable.
Q6 : Can we visit your company?
A : Yes, for sure, It's my pleasure to visit our company.
Q7 : What is the shipping cost?
A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.
Q8 :What is the transportation way?
A:If the Gross Weight ≤45kg, it's better by express such as TNT, DHL, FedEx,, etc.
If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.
If the Gross Weight ≥ 100kg ,you can choose by Air or Sea to the nearest port.
Q9 :How service you can offer your clients?
A:We provide presales service in various forms, for example, making investment budget,manufacturing planning,etc.so that customer make a reasonable plan with less cost. Moreover,we will also provide after sale service ,for example,free training about machine applications ect.
Suppliers with verified business licenses
Audited Supplier 
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