Custom Welding Services in China
Creating Strong, Reliable, and Precise Fabrications from Custom Machined and Sheet Metal Components.
- ISO 9001 Certified
- TIG, MIG & Spot Welding
- Certified Welders
Your Expert Partner for Custom Welding & Fabrication
Celerity Precision provides expert welding services in China as a core component of our integrated manufacturing solutions. Welding is the process of joining metal parts, typically by melting the base materials and adding a filler material to form a strong, permanent bond. It is essential for creating complex assemblies, structural frames, and custom fabrications that cannot be made from a single piece of material. Our dedicated welding department is staffed by certified, highly skilled welders and equipped with modern technology to deliver assemblies that are not only strong and durable but also precise and aesthetically clean.
Advanced Welding Processes for Any Requirement
We offer a range of welding processes to suit different materials, applications, and structural requirements, ensuring we always use the best technique for your project.
TIG Welding (Gas Tungsten Arc Welding)
The premier process for high-quality, precision welding. TIG welding produces exceptionally clean, strong, and aesthetically pleasing welds with minimal spatter. It is our preferred method for stainless steel and aluminum, and is ideal for applications where appearance and weld integrity are paramount, such as in medical and food-grade equipment.
MIG Welding (Gas Metal Arc Welding)
A highly efficient and versatile process, MIG welding is perfect for rapidly joining steel, stainless steel, and aluminum components. It offers an excellent balance of speed and quality, making it the workhorse for fabricating structural frames, industrial machinery parts, and thicker plate assemblies.
Spot Welding (Resistance Spot Welding)
An extremely fast and economical process for joining overlapping sheets of metal. Spot welding is ideal for high-volume production of enclosures, brackets, and assemblies made from steel or stainless steel, creating a strong bond at localized points without adding filler material.
A Full Spectrum of Weldable Materials
Metal
A lightweight, versatile metal with an excellent strength-to-weight ratio and natural corrosion resistance.
- Available Grades: 6061, 7075, 5052, 2024, 6063, 6082, 5083
- Common Finishes: As Machined, Anodizing, Powder Coating, Sand Blasting, Chromate (Alodine)
Steel
A strong, durable, and cost-effective material ideal for high-stress and industrial applications.
- Available Grades: Mild Steel (1018, 1020), Alloy Steel (4140, 4340), Tool Steel
- Common Finishes: Black Oxide, Zinc Plating, Powder Coating, Painting
Stainless Steel
Offers excellent strength and superior corrosion resistance, making it ideal for medical, marine, and food-grade applications.
- Available Grades: 303, 304/304L, 316/316L, 17-4 PH, 416, 420
- Common Finishes: Passivation, Electropolishing, Brushed Finish, As Machined
Have a Design Ready? Let's Make It Real.
The Celerity Precision Welding Advantage
Certified and Skilled Welders
Our welding team consists of certified professionals with deep expertise in TIG, MIG, and spot welding across a range of materials, ensuring every joint is strong and reliable.
Integrated "One-Stop" Fabrication
We manage the entire project lifecycle, from precision laser cutting and CNC machining the individual components to expertly welding and finishing the final assembly. This guarantees perfect fit-up and total quality control.
Precision Fixturing and Tooling
We design and build custom fixtures for complex weldments. This ensures that all components are held in their precise locations during welding, minimizing distortion and maintaining critical assembly tolerances.
Superior Weld Quality and Aesthetics
We pride ourselves on producing welds that are not only structurally sound but also clean and consistent. For cosmetic applications, we offer post-weld grinding and finishing to create a seamless appearance.
Adherence to Standards and Specifications
We can work to your specific welding callouts and industry standards, providing the documentation and quality assurance you need for critical applications.
Complete Finishing Services
After welding, we can seamlessly move your assembly to our in-house finishing departments for sand blasting, powder coating, painting, or passivation to deliver a fully completed product.
Advantages of the Welding Process
Creates Strong, Permanent Joints
Welding creates a permanent metallurgical bond that can be as strong as, or even stronger than, the base materials themselves.
Enables Complex Geometries
Allows for the creation of large, complex, and hollow structures that would be impossible or prohibitively expensive to machine from a single solid block.
Cost-Effective for Assemblies
It is often the most economical method for creating large or complex assemblies compared to casting or machining from billet.
Design Flexibility
Provides engineers with the flexibility to combine different material forms (e.g., sheet, tube, machined blocks) into a single, optimized fabrication.
Structural Rigidity
Welded joints create rigid, monolithic structures that are ideal for frames, chassis, and load-bearing applications.
Hermetic Sealing
TIG welding can be used to create leak-proof, hermetically sealed joints, which is essential for tanks, vessels, and vacuum chambers.
From Component to Assembly in 4 Simple Steps
Submit Design & Get Quote
Upload your CAD files for the assembly and individual components. Our team will review the design and provide a detailed quote.
DFM Review & Order Confirmation
We provide DFM feedback on joint design and fixturing. Once you approve, we begin fabricating the components.
Precision Welding & Assembly
Our certified welders use custom fixtures to precisely position and weld your components according to your specifications.
Inspection & Global Delivery
Every weldment is inspected for dimensional accuracy and weld quality before being finished (if required) and securely shipped.
Welding FAQ
What is the difference between TIG and MIG welding?
TIG welding uses a non-consumable tungsten electrode and is a slower, more precise process that creates cleaner, higher-quality welds. MIG welding uses a continuously fed wire electrode and is much faster, making it more efficient for production and thicker materials.
Will welding distort my parts?
The heat from welding can cause some distortion. We minimize this by using proper fixturing, optimized welding sequences, and post-weld stress relieving when necessary.
What materials are the easiest to weld?
Mild steel and 300-series stainless steel are generally the easiest and most common materials to weld with excellent results.
Do you offer DFM analysis?
Aluminum has high thermal conductivity (which pulls heat away) and a surface oxide layer that must be thoroughly cleaned and removed for a quality weld. It requires specialized equipment (AC TIG) and a high level of operator skill.
Do you grind the welds smooth after welding?
We can! A standard weld is left “as-welded.” If you require a smooth, seamless finish for cosmetic reasons, please specify “grind welds smooth” on your drawing.
What is a "weld callout" on a drawing?
It is a standardized symbol that provides specific instructions to the welder, such as the type of weld (e.g., fillet, butt), the size of the weld, and its location.