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Our online quoting platform and broad range of capabilities make it easy to source custom parts for both prototyping and production
High quality Custom vacuum flanges are a must-have in high standard vacuum sealing as well as precision system interfaces for CNC precision machinery parts. BestPro factory provides the expertise in custom machined applications for these flanges, which are used extensively in research labs, semiconductor equipment, aerospace, and industrial vacuum systems.
BestPro does made-to-order machining for vacuum flanges per client request, e.g., CF, KF, ISO standard interfaces. Each flange is customized to your specifications, including material selection, machined, and finished surface.
| Material | Characteristics | Typical Applications | Customer Search Keywords |
| AISI 304 Stainless Steel | Corrosion-resistant, durable, moderate temperature | General vacuum, chemical labs | 304 flange, at the end of a length of stainless steel vacuum tubing is attached |
| AISI 316 Stainless Steel | High corrosion resistance, high temperature | Semiconductor, chemical, high-vacuum | 316 stainless flange, CF flange |
| Aluminum 6061 / 6082 | Lightweight, easy to machine | Mobile equipment, prototype systems | aluminum flange and steel core with Viton O-rings |
| Copper / Brass | High conductivity, thermal/electrical applications | Special-purpose vacuum systems for electric power or heat | copper flange, brass flange, conjunctive flange |
| Special Alloys | Customized performance | Aerospace, high-end research | custom alloy flange, high-performance flange |
| Process | Purpose | Typical Specs | Customer Search Keywords |
| CNC Turning & Milling | Shape and size precision | ±0.05 mm tolerance | CNC flange, precision flange |
| Deep Hole Drilling | Through-holes for assembly | Custom diameters | drilled vacuum flange, through-hole flange |
| Precision Tapping | Screw threads for bolts | ISO/ANSI/Custom | tapped flange, threaded flange |
| Chamfering & Deburring | Smooth edges & assembly | Ra < 0.8 μm | chamfered flange, deburred flange |
| Polishing / Electropolishing | Surface smoothness, vacuum sealing | Mirror finish optional | polished vacuum flange, electropolished flange |
| Nickel / Silver Plating | Corrosion resistance, conductivity | Custom thickness | nickel flange, plated flange, silver flange |
A semiconductor lab customer in Europe requested a batch of Φ150mm KF vacuum flange. Material: stainless steel AISI 316, machining tolerance: ±0.05 mm. The flange was used on a high-vacuum test stand, achieving excellent sealing performance.
BestPro offers complete custom machining, from prototype through production. We provide advice for material, accuracy fabrication, and surface treatment for your custom demand. Our clients can depend on us for prompt delivery, precision tolerances, and the highest quality custom vacuum flanges.
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No. 852, Wuxiang West Road, Yinzhou District, Ningbo City, China
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