Oil-Free Trapezoidal Nut for Vacuum Chambers

As a professional manufacturer focusing on extreme environment transmission parts, Maitu provides high-performance Oil-Free Trapezoidal Nut for Vacuum Chambers, effectively solving the core pain points of lubricant outgassing, contamination and poor sealing in vacuum chamber transmission. According to the vacuum level, working temperature and load requirements of your vacuum chambers, we can customize key parameters such as thread specification, nut structure, material purity and surface treatment. Its oil-free integrated design eliminates the risk of lubricant volatilization and outgassing, ensuring the vacuum degree of the chamber and avoiding contamination of the internal environment and workpieces.

Product Technical Specifications

Note: * indicates special specifications, which can be customized according to the vacuum level, temperature and load requirements of vacuum chambers.

Core Advantages for Vacuum Environment

1. Low-outgassing oil-free structure: Adopts high-purity solid lubricant integrated molding technology, no lubricant volatilization or outgassing, the outgassing rate is less than 1×10⁻⁸ Pa·L/s, which can effectively maintain the high vacuum degree of the chamber and avoid pollution of the internal environment.

2. High-sealing adaptability: The thread is processed by precision grinding technology, with tight meshing, no gap and no air leakage, matching the sealing requirements of high-vacuum and ultra-high-vacuum chambers, ensuring the stability of the vacuum environment during transmission.

3. Extreme environment adaptability: The Oil-Free Trapezoidal Nut for Vacuum Chambers can operate stably in the vacuum range of 10⁻³ Pa to 10⁻⁹ Pa, and adapt to the temperature range of -40℃ to 350℃, meeting the working conditions of different types of vacuum chambers such as high-temperature vacuum furnaces and low-temperature vacuum storage tanks.

Key Performance Parameters

1. Material Purity: Utilizes a high-purity bronze alloy (purity ≥ 99.95%) combined with composite solid lubricants. Subjected to high-temperature purification, the ash content is controlled to below 50 ppm, ensuring zero residual impurities to prevent contamination of the vacuum chamber interior and the workpiece.

2. Wear Resistance and Stability: Enhanced through a specialized surface strengthening treatment, the surface hardness reaches HRC 50–55. Compared to standard oil-free nuts, the wear rate is reduced by 50%, enabling stable transmission during prolonged vacuum operation without deformation or failure.

3. Corrosion and Oxidation Resistance: The surface features a vacuum-compatible anti-oxidation coating, providing resistance against residual gases and corrosive media present within the vacuum chamber, thereby preventing oxidation and corrosion under high-temperature vacuum conditions.

4. Transmission Precision: Thread precision meets ISO Grade 4 standards, with a pitch error of less than ±0.003 mm. This ensures precise positioning of internal vacuum chamber components, satisfying the high-precision adjustment requirements of experimental and production equipment.

Our Advantages in Vacuum Component Manufacturing

1. Vacuum-specific R&D strength: Our R&D team has 6 senior engineers with more than 10 years of experience in vacuum transmission components, focusing on solving the outgassing, sealing and precision problems of nuts in vacuum environments.

2. Vacuum-level production control: Equipped with 2 professional production lines for vacuum components, and a dedicated vacuum testing workshop, each Oil-Free Trapezoidal Nut for Vacuum Chambers undergoes vacuum outgassing test and sealing test before leaving the factory to ensure product qualification.

3. Rich customization experience: We have customized more than 1,800 types of vacuum transmission components for vacuum equipment manufacturers, mastering the core needs of different vacuum chamber types (such as vacuum coating, vacuum drying, vacuum experimental chambers).

4. Professional qualification certification: We have passed ISO 9001 and ISO 13485 certification, and the products have passed vacuum outgassing and sealing performance testing, meeting the international vacuum equipment industry standards and being recognized by many well-known vacuum equipment brands.

One-Stop Customization & Service

1. Professional demand consultation: Our technical team provides one-on-one vacuum environment adaptation consultation, deeply understands the vacuum level, working temperature, load and installation space of your vacuum chambers, and provides targeted product solutions.

2. Customization process support: For vacuum chamber-specific customization, we provide 2D/3D drawing design, sample trial production, vacuum performance testing and other one-stop services, ensuring that the product fully matches your vacuum equipment.

3. Vacuum packaging & transportation: Products are packaged in vacuum-sealed aluminum foil bags, with moisture-proof and dust-proof treatment, avoiding contamination and outgassing during transportation and storage, ensuring the product performance.

4. Efficient delivery guarantee: Standard vacuum-adapted products are in stock, and the delivery time is 3-7 working days; customized products are delivered within 10-18 working days, with professional logistics to ensure timely arrival.

5. After-sales technical support: Provide 24-month quality guarantee period, and send professional technicians to provide on-site installation, debugging and maintenance guidance for bulk orders, solving your use problems in time.

Vacuum Environment Use & Maintenance Guide

1. Cleaning specifications: Use high-purity alcohol and lint-free clean cloth to wipe the surface, do not use ordinary cleaning agents or water, so as not to leave residues and affect the vacuum degree and the self-lubricating performance of the Oil-Free Trapezoidal Nut for Vacuum Chambers.

2. Regular inspection & maintenance: It is recommended to check the thread meshing status, sealing performance and wear degree every 12 months. If there is any abnormality, it should be replaced in time to avoid affecting the vacuum environment and equipment operation.

3. Storage requirements: Store in a vacuum-sealed packaging bag, place in a clean, dry, low-humidity environment (temperature 10-20℃, humidity ≤30%), avoid contact with oil stains, dust and corrosive substances.

4. Installation precautions: Install in a clean environment, wear dust-free gloves during installation, avoid direct contact with the product surface, and ensure that the installation process is free of dust and impurities to prevent affecting the vacuum sealing performance.

Typical Application Fields

1. Vacuum coating equipment: Used in the precision lifting and positioning mechanisms of vacuum coating chambers, ensuring oil-free, low-outgassing operation, avoiding affecting the coating quality and the vacuum degree of the chamber.

2. Vacuum heat treatment equipment: Applicable to the transmission components of high-temperature vacuum furnaces, adapting to high-temperature and high-vacuum environment, ensuring stable transmission and no contamination of workpieces during heat treatment.

3. Vacuum experimental chambers: Used in the adjustment and positioning mechanisms of scientific research vacuum experimental chambers, meeting the high-precision and low-pollution requirements of experimental equipment, ensuring the accuracy of experimental results.

4. Vacuum packaging & drying equipment: Suitable for the transmission components of vacuum packaging and drying chambers, realizing oil-free operation, avoiding contamination of packaged products, and ensuring the vacuum sealing effect.

Common Questions & Answers

1. What is the outgassing rate of the Oil-Free Trapezoidal Nut for Vacuum Chambers? 

Our product’s outgassing rate is less than 1×10⁻⁸ Pa·L/s, which fully meets the high-vacuum and ultra-high-vacuum chamber requirements, and will not affect the vacuum degree of the equipment.

2. Can the product be used in ultra-high-vacuum chambers (vacuum degree ≤10⁻⁹ Pa)? 

Yes, our product is specially optimized for ultra-high-vacuum environments, with strict material purification and outgassing control, which can be safely used in ultra-high-vacuum chamber equipment.

3. Can you customize the product according to the special structure of our vacuum chamber? 

Yes, we can customize the nut structure, thread specification, flange design and material composition according to your vacuum chamber drawings and working requirements, and provide sample trial production and performance testing.

4. What is the service life of the product in long-term vacuum operation? 

Under normal use and regular maintenance, the service life of the product is more than 6 years, which is 50% longer than that of ordinary oil-free nuts, adapting to the long-term stable operation needs of vacuum equipment.

5. Do you provide vacuum performance test reports for the product? 

Yes, we can provide vacuum outgassing test reports, sealing performance test reports and material purity test reports to meet the audit requirements of your vacuum equipment production and scientific research.

6. How to solve the problem if the product affects the vacuum degree during use? 

Our technical team will provide on-site detection and debugging services, find out the cause of the problem, and provide free replacement if there is a product quality problem within the guarantee period.