Vaccum Flanges
- Superior Vacuum Integrity: Made to ensure sealed connections in high and ultra-high vacuum settings.
- Tight Dimensional Tolerance: Maintained within ±0.05 mm for high-accuracy system installation.
- Wide Size Capability: Diameter options from 50 mm to 1200 mm or total weight under 80 kg.
- Custom Machining Available: Shapes, grooves, bolt patterns produced according to drawings.
- Universal Compatibility: Supports ISO, CF, KF, and custom vacuum systems.
Technical Specifications
| Parameter | Specification |
| Product Name | Vacuum Flanges |
| Diameter Range | 50 mm – 1200 mm or max 80 kg |
| Tolerance | ≤ ±0.05 mm |
| Surface Finish | Smooth, scratch-free sealing surfaces |
| Materials | SS304, SS316, Super Duplex, F55, F60, 904L |
| Standards (Optional) | ISO / CF / KF / Custom |
| Flange Types | ISO-KF, ISO-K, CF, custom shapes |
| Manufacturing Process | CNC machining, grinding, and polishing |
| Surface Treatment | Polishing, passivation, and cleaning |
| Sample Availability | 2 pcs free samples |
| Application Fields | Vacuum chambers, semiconductor tools, R&D, coating systems |
| Packaging | Protective bag + plywood case |
Raw Materials
We produce and purchase raw materials strictly according to customer requirements, ensuring full compliance with project specifications, mechanical properties, and international standards.
Main steel grades we produce:
Steel Grade | Standards | Classification | Products |
1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4871 | EN 10222-5 | L | Forged flanges and Forged parts |
F304, F304L, F316, F316L, F321, F316T, F310, F904L | ASTM A182 | L | Forged flanges and Forged parts |
F51, F53, F55, F60 | ASTM A182 | L | Forged flanges and Forged parts |
LF2 | ASTM A350 | V | Forged flanges and Forged parts |
F11, F22 | ASTM A182 | V | Forged flanges and Forged parts |
A105 | ASTM A105 | N | Forged flanges and Forged parts |
CNC Machining Capabilities
We operate multiple machining lines and CNC centers engineered to deliver tight tolerances, superior surface finishes, and consistent quality for complex forged components.
Equipments and Quantities | ||
Item No. | Equipments | Quantities |
1 | Ramp CNC lathe | 6 |
2 | Normal lathe | 8 |
3 | Machining center | 4 |
4 | CNC lathe | 10 |
Inspection & Quality Control
To ensure the high quality of non-standard flanges, we are equipped with professional testing and inspection systems:
- 3D Measurement Equipment
- Ultrasonic Cleaning Machine
- Physical & Chemical Testing
- Dimensional Inspection
Packaging for Non-Standard Flanges
We provide protective packaging options according to customer needs:
- Anti-rust treatment
- Plastic film wrapping
- Wooden cases
- Wooden pallets
- Custom packaging available
Why Choose Boberry
Complete In-House Manufacturing
Integrated forging, heat treatment, machining, and inspection ensure stable quality, faster lead times, and full control over every production stage.
European-Market Proven Quality
Long-term supply to Germany, Austria, Switzerland, and Nordic countries demonstrates our ability to meet strict technical standards and customer expectations.
Custom Engineering Support
Tailor-made stainless-steel parts based on your drawings, with trial samples available to validate design, performance, and fit before full-scale production.