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W4 Custom Machined Stainless Steel Flange Weldment

W4 Custom Machined Stainless Steel Flange Weldment

The W4 custom stainless steel flange weldment combines precision CNC machining with expert TIG welding. Featuring a robust machined base with threaded mounting holes and a seamlessly welded central cylinder, this component offers exceptional structural integrity and corrosion resistance for demanding fluid handling or heavy-duty mounting applications.

 

 

  • Material :

    304 / 316L Stainless Steel (Carbon Steel available)
  • Surface Treatment :

    Natural Machined Finish, Sandblasting, Passivation, Electropolishing
  • Process Involved :

    CNC Milling, CNC Turning, Drilling/Tapping, Precision TIG Welding

Custom Machined Stainless Steel Flange Weldment (W4)

Precision CNC Machining • Expert TIG Welding • Leak-Proof

 

 

CNC Machined Metal Flange Weldment

Product Overview

 

Precision CNC Machining: We utilize advanced CNC milling and turning centers to craft the heavy-duty flange base and cut precise threaded mounting holes strictly according to your 3D models, ensuring perfect mechanical alignment.

 

Expert TIG Welding Integration: The central cylindrical boss is joined to the base plate using high-precision TIG welding. This produces a flawless "stack of dimes" weld seam that guarantees exceptional structural strength and zero leakage.

 

Assembly-Ready Delivery: Parts arrive fully deburred, precisely threaded, and rigorously inspected. We provide ready-to-use structural components that seamlessly integrate into your complex mechanical or piping systems.

 

 

Product Specifications

 

Specification Details
Material 304 / 316L Stainless Steel (Carbon Steel available)
Fabrication Processes CNC Milling, CNC Turning, Drilling/Tapping, Precision TIG Welding
Surface Treatment Natural Machined Finish, Sandblasting, Passivation, Electropolishing
Tolerance ISO 2768-m (CNC machined features up to +/- 0.05mm)
Thread Standards Metric (M-series), UNC/UNF (Customizable based on design)

 

What Can Be Customized

 

Customization Aspects Specific Parameters & Capabilities
Geometry & Dimensions Custom triangular, square, or circular flange base shapes with specific material thicknesses
Thread Sizes & Pitch Custom tapped mounting holes tailored to your specific mating hardware and torque requirements
Welding Specifications Specific weld penetration depths and post-weld treatments (e.g., natural seam or grinding flush)

 

Application Industries

 

  • Fluid Processing Systems: Provides secure, leak-proof mechanical connections for high-pressure industrial piping and valve assemblies.
  • Automotive & Heavy Machinery: Functions as a highly durable mounting bracket or bearing housing for heavy-duty drive systems.
  • Marine & Offshore Equipment: Utilizes premium 316L stainless steel for maximum corrosion resistance against harsh saltwater environments.
  • Food & Beverage Automation: Offers a sanitary, highly corrosion-resistant structural base for processing machinery and conveyor systems.

 

 

Integrated Manufacturing Capabilities

From Precision CNC Machining to Advanced TIG Welding, we handle it all.

01

Process Flow

RAW

Machining

CNC Milling & Turning

FORM

Drilling

Tapping & Threading

JOIN

Welding

Precision TIG & MIG

COAT

Finishing

Passivation / Polishing

TEST

Assembly & QC

Tolerance / Leak Testing

02

Core Equipment

Cutting & Stamping

12KW Fiber Laser: Max 25mm thick
CNC Punching: 30 Tons (AMADA)
Hydraulic Press: Max 500 Tons

Automated Forming

21 Press Brakes: TRUMPF/AMADA
4 Bending Robots: Automated
Max Length: 4000mm (300 Tons)

Robotic Joining

13 Welding Robots: Panasonic
Riveting Center: 12-Station Servo
Laser Welding: 1500W Handheld

Advanced Validation

3D Scanner: FreeScan-X7 (0.03mm)
IP Testing: IPX5-6 Water Spray
Vision System: Planar Inspection

03

Finishing Options

  • Powder Coating & Painting Durable finishes in all RAL colors (Spray/Powder).
  • Plating & Electrocoating Zinc Plating, Electroplating, and E-Coat for steel.
  • Passivation & Polishing Restoring corrosion resistance for stainless steel.

In-House Capabilities:

Shot Blasting Auto Polishing Screen Printing

 

Xiamen Huapusheng Sheet Metal Manufacturing Co., Ltd.

Why Partner with Huapusheng?

 

 Factory-Direct Value Leveraging our 30,000m² facility in Xiamen and automated robotic lines, we eliminate middlemen to offer competitive pricing without compromising quality.

 

Certified Reliability We adhere to ISO 9001 & IATF 16949 standards. Every component is validated using IPX5-6 labs and 3D Scanners to meet strict industrial specifications.

 

DFM & Engineering Support Beyond fabrication, our engineers provide DFM analysis to optimize your 3D files, reducing material waste and simplifying assembly for mass production.

 

Scalable Capacity From 50 prototypes to 50,000 units, our fleet of 12KW lasers and 4 bending robots ensures rapid ramp-up and on-time delivery.

 

 

Frequently Asked Questions

 
Can you guarantee the welded flange is leak-proof for fluid applications? +

Yes. We can perform rigorous structural and penetrant testing on our welded components to ensure they are completely leak-proof and meet high-pressure fluid handling requirements.

Do you offer post-weld surface treatments for stainless steel? +

Yes. We provide comprehensive passivation and electropolishing services to remove any weld discoloration, restore the protective oxide layer, and maximize corrosion resistance.

What are your tolerances for the tapped mounting holes? +

By utilizing state-of-the-art CNC machining centers, we routinely hold tight tolerances of +/- 0.05mm for tapped holes and critical dimensions, ensuring perfect alignment with your mating parts.

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