Custom CNC Machined Ring Type Joint Flanges

We specialize in custom CNC machined Ring Type Joint flanges, designed to meet the highest standards for precision and reliability. With a streamlined supply chain and strict quality control, we consistently achieve a 98% product yield.

Brand Name: VMT

Name: CNC Machined Ring Type Joint Flanges

Processing: CNC Turning/CNC Milling

MOQ: No MOQ

Material: Aluminum/Stainless Steel/Brass/Copper, etc.

Dimensions: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, Custom Drawings

Size: 1/2″ (15 NB) to 48″ (1200NB), Custom needs

Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ), According to customer needs

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ISO 9001 IATF 16949 Rohs Certification

Complete Quality Control Management Department

Production Yield Rate Reaches 99.8%

40 Materials/Finishes Choose

Hardware Installation & Mechanical Assembly

Your Professional Custom CNC Machined Ring Type Joint Flanges Manufacturer

A flange, also known as a rim or collar, is a round, symmetrical part used to connect pipes, vessels, or mechanical components. It typically features bolt holes or threaded structures to ensure a secure fit.

With 15 years of precision machining experience, we specialize in custom CNC machined Ring Type Joint flanges made to meet strict industry standards. As a trusted manufacturer, supplier, and exporter, we focus on delivering flanges with outstanding quality, tight tolerances, and reliable sealing performance for high-pressure applications.

Our expert engineering team can support you with complex designs, suggest optimized manufacturing solutions, and help reduce production costs—ensuring you receive high-performance flanges tailored to your specific needs.

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Custom CNC Machined Ring Type Joint Flanges Features

Precision CNC Machining

Manufactured with tight tolerances and high surface finish to ensure accurate fit and long-term durability.

Competitive Pricing with Guaranteed Quality

Our factory-direct pricing offers excellent value without compromising on quality. Bulk order discounts are available.

Custom Sizes and Materials

Available in a wide range of sizes and materials to meet your project’s exact requirements.

Multiple Ring Designs Available

We support various ring types—oval, octagonal, RX, and more—to match your specific sealing needs.

Secure, Leak-Free Sealing

Each flange groove holds a metal ring that compresses when bolted together, forming a tight, leak-proof seal—ideal for high-pressure connections.

Excellent Corrosion Resistance

Made from materials like stainless steel or special alloys, these flanges offer outstanding resistance to seawater and corrosive environments.

Easy to Install and Replace

Compatible with industry-standard pipes and valves, making maintenance and replacement quick and efficient.

Reliable Under Extreme Conditions

Designed to handle high pressure, high temperature, and aggressive media where traditional gaskets may fail.

Custom CNC Machined Ring Type Joint Flange

Advantages of Our CNC Machining Ring Type Joint Flanges

Our custom CNC machined RTJ flanges are built to deliver high sealing performance in extreme environments. By compressing a metal ring into a deep groove when bolted, these flanges create a leak-proof seal that can withstand high pressure and high temperatures.

We offer RTJ flanges in a variety of materials, including stainless steel for excellent corrosion resistance and carbon steel for strong anti-blowout properties. Our advanced CNC machines—98 HAAS machines, 20 CNC lathes, and over 60 multi-axis centers—allow us to meet tight tolerances of up to 0.005 mm, ensuring perfect fit and performance. Whether you need oval, octagonal, or RX-type grooves, we can customize the design to suit your specific application.

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Quality Inspection of Custom CNC Machined Ring Type Joint Flanges

To ensure every RTJ flange meets your exact specifications, we follow a strict 12-step quality control process from raw material sourcing to final delivery. Each flange is visually inspected at every stage—cutting, machining, surface treatment, and packaging—to catch any defects early.

Our in-house QC team uses high-precision 2D and 3D projectors to check every critical measurement. From the first article inspection to in-process and final checks, we carefully monitor flange dimensions, ring groove tolerances, and surface finishes. Detailed inspection records are created and securely stored for two years, ensuring full traceability. Thanks to this rigorous system, we maintain a 99.98% yield rate.

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The Application of Custom CNC Machining Flanges

Custom CNC machined flanges, especially Ring Type Joint flanges are widely used in demanding industries that require strong, leak-proof connections. Their precision fit, high pressure tolerance, and material flexibility make them ideal for harsh environments.

The main Industry Applications:

Oil and Gas equipment
Offshore Technology
Seawater Desalination Plants
Chemical Industry
Airport, Malls, Buildings
Medical Industry
Pressure vessels, Reactor tanks, and Heat exchangers

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CNC Machined Ring Type Joint Flanges Material Selection

In the field of parts machining, especially for the material selection of customized products, VMT provides a wide range of options to meet the needs and application scenarios of different customers. The following are common materials:

Available Materials
Aluminum	AL6061,Al6063,AL2024,AL6082,AL7075, ADC12, ect.
Stainless Steel	SS201,SS301,SS303,S31803,SS304,SS316, etc.
Steel	Low carbon steel, medium carbon steel, high carbon steel, alloy steel, etc.
Copper	C11000,C12000, C36000, etc
Brass	H59,H62,H65,H68, H80, etc
Iron	A36,45#,1213,12L14, etc

Aluminum Parts	Anodizing, sandblasting anodizing, oil spraying, electroplating, wire drawing, polishing, etc.
Stainless Steel	PVD (vacuum coating), electroplating, passivation, etc.
Steel	Galvanized, black oxide, powder coating, etc.
Copper	Passivation, electroplating
Plastic	Painting, brushing (acrylic), printing, thermal transfer, etc.

Custom CNC Machined Ring Type Joint Flanges

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Your Professional Custom CNC Machined Ring Type Joint Flanges Manufacturer

Custom CNC Machined Ring Type Joint Flanges Features

Precision CNC Machining

Competitive Pricing with Guaranteed Quality

Custom Sizes and Materials

Multiple Ring Designs Available

Secure, Leak-Free Sealing

Excellent Corrosion Resistance

Easy to Install and Replace

Reliable Under Extreme Conditions

Advantages of Our CNC Machining Ring Type Joint Flanges

Quality Inspection of Custom CNC Machined Ring Type Joint Flanges

The Application of Custom CNC Machining Flanges

CNC Machined Ring Type Joint Flanges Material Selection

Typical Surface Treatment of Parts Products

As CNC machined

Sandblasting

Anodizing

Plating

Polishing

Powder Coating

Brushed

Painting

Electrophoresis

Blackened

Customized Logo

Water Transfer Printing

More Resource

12-Step Quality Inspection Process

DFM Analysis

Size Recognition

Materials Testing

CNC Prototyping and Machining

IPQC/FQC

SPC/CPK

Problem Found

Problem Solving

OQC

Surface Finishing

Full Inspection

Package

Our Certificates

More About Our Company

One-stop Service for Custom CNC Machining Flanges

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FAQ About Ring Type Joint Flanges

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