CF Variable Diameter Fixation Series - Precision Vacuum Connection Solutions

CF Variable Diameter Fixation Series - Precision Vacuum Connection Solutions

This series of reducers offers multiple size combinations, with various specifications available from CF35 to CF150, meeting the connection requirements of various vacuum systems. Each product undergoes helium mass spectrometry leak testing to ensure leak rates below 1×10⁻¹⁰ Pa·m³/s, making it an ideal choice for scientific research and industrial applications.

Why Choose the CF Variable Diameter Fixation Series?

1. Precision Machining - All dimensions strictly controlled within ±0.1mm tolerance range

2. Premium Materials - Uses 304 or 316 stainless steel ensuring corrosion resistance

3. Reliable Sealing - Helium mass spectrometry leak tested for ultra-high vacuum performance

4. Multiple Specifications - Various size combinations from CF35 to CF150 available

5. Wide Applications - Suitable for scientific instruments, semiconductor equipment, and various other fields

Key Features

1. Precise Dimension Control

   • All machining dimensions strictly comply with international standards

   • Surface finish reaches Ra≤0.8μm

   • Strict flatness and parallelism control

2. High-Quality Material Selection

   • 304/316 stainless steel material

   • Excellent corrosion resistance

   • Good stability in high-temperature environments

3. Reliable Sealing Performance

   • Helium leak rate <1×10⁻¹⁰ Pa·m³/s

   • Special surface treatment process

   • Aging tested for long-term stability

4. Easy Installation

   • Standardized flange interfaces

   • Clear dimension markings

   • Comprehensive installation guidance

5. Quality Assurance

   • 100% quality inspected

   • Material certification reports provided

   • Complete traceable inspection records

   • Technical Specifications

     Model	A (mm)	B (mm)	C (mm)	D (mm)
     CF35RA16	70	34	76	19.05
     CF35RA25	70	54	76	25.4
     CF63RA16	114	34	76	19.05
     CF63RA25	114	54	76	25.4
     CF63RA35	114	70	76	38.1
     CF100RA35	152	70	76	38.1
     CF100RA63	152	114	76	63.5
     CF150RA35	202	70	76	38.1
     CF150RA63	202	114	76	63.5
     CF150RA100	202	152	76	101.6

     General Specifications:

     • Material: 304/316 stainless steel

     • Operating Temperature: -20℃ to 200℃

     • Surface Treatment: Electropolishing

     • Vacuum Level: Up to 10⁻¹⁰ Pa

     • Sealing Method: Metal gasket sealing

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     Application Areas

     1. Scientific Instruments

        • Electron microscope vacuum systems

        • Mass spectrometer connection systems

        • Surface analysis instruments

     2. Semiconductor Equipment

        • Coating equipment vacuum connections

        • Etching machine vacuum systems

        • Ion implantation equipment

     3. Accelerator Devices

        • Particle accelerator vacuum pipelines

        • Synchrotron radiation devices

        • Vacuum beam transmission systems

     4. Industrial Equipment

        • Vacuum furnace connection systems

        • Freeze-drying equipment

        • Vacuum packaging machinery

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     Installation Guide

     Pre-installation Preparation:

     • Clean all sealing surfaces

     • Check if gaskets are intact

     • Prepare appropriate installation tools

     Installation Steps:

     1. Place metal gasket in the sealing groove

     2. Align flange bolt holes

     3. Tighten bolts evenly using crisscross pattern

     4. Use torque wrench with recommended torque values

     5. Perform leak detection

     Recommended Torque:

     • CF35 Series: 5-6 N·m

     • CF63 Series: 8-10 N·m

     • CF100 Series: 12-15 N·m

     • CF150 Series: 18-20 N·m

     Precautions:

     • Avoid reusing metal gaskets

     • Ensure sealing surfaces are clean and undamaged

     • Use specified torque values

     • Leak detection must be performed after installation

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     FAQ

     1. Q: How to choose the appropriate reducer model?
        A: Select the corresponding model based on the sizes of the two CF flanges that need to be connected in your system. For example, CF35RA16 indicates one end is CF35 flange, the other end is CF16 flange.

     2. Q: Can metal gaskets be reused?
        A: Reusing metal gaskets is not recommended as each compression causes permanent deformation, affecting sealing effectiveness.

     3. Q: What should be特别注意 during installation?
        A: Ensure absolute cleanliness of sealing surfaces, use correct installation torque, and tighten bolts evenly in crisscross pattern.

     4. Q: What is the vacuum performance of these reducers?
        A: All reducers undergo helium mass spectrometry leak testing with leak rates below 1×10⁻¹⁰ Pa·m³/s, suitable for ultra-high vacuum applications.

     5. Q: Are custom sizes available?
        A: We can provide custom services according to customer requirements, but detailed technical specifications are needed.

     6. Q: How to determine if a reducer needs replacement?
        A: If there is irreparable leakage, or visible damage and corrosion on sealing surfaces, replacement is needed.

     7. Q: What is the service life of these reducers?
        A: Under normal use and maintenance conditions, they can be used for over 10 years, depending on usage environment and frequency.

     8. Q: Are material certificates provided?
        A: Yes, we can provide complete material certificates and test reports.

     9. Q: How to clean and maintain?
        A: Recommend using lint-free cloth with acetone or alcohol for wiping, avoid using corrosive cleaners.

     10. Q: What is the delivery time?
         A: Standard models are usually in stock with 3-5 days delivery. Special specifications require 2-3 weeks production time.

     
     

     Conclusion

     The CF Variable Diameter Fixation Series, with its precise machining工艺, excellent sealing performance, and reliable quality assurance, serves as an ideal connection solution for ultra-high vacuum systems. Whether for scientific research or industrial production, this product series can provide stable and reliable performance. We recommend users select appropriate models based on actual needs and strictly follow installation instructions to ensure optimal performance.

     Professional Advice: We recommend users establish regular inspection and maintenance plans, replace metal gaskets after each disassembly, and record installation torque and test results each time to ensure long-term stable operation of the vacuum system.