Precision Welding Services

Process Principle + Advantages

Welding joins metal parts by melting and fusing material at the joint, while assembly combines welded and fastened components into a finished structure. Depending on material thickness and finish requirements, TIG or MIG welding can be applied to efficiently join everything from thin cosmetic panels to thick structural frames, offering strong, consistent joints and controlled heat input. We support both TIG and MIG welding to meet the fabrication demands of precision enclosures and heavy structural assemblies.

TIG Welding

The welder uses a tungsten electrode and shielding gas to melt and fuse the joint with precise heat control, representing the most controlled welding method.

Suitable for thin-gauge sheet metal, stainless steel, and parts requiring a visible, cosmetic weld.

Achieves consistent, spatter-free welds on materials as thin as 0.5 mm.
MIG Welding

In addition to standard TIG welding, a continuously fed wire electrode allows faster travel speeds across thicker material and longer joints.

Suitable for structural frames, thicker gauge assemblies, and parts prioritizing speed over cosmetic finish.

Achieves strong, consistent welds on material up to 6 mm thick.

Welding & Assembly Capabilities and Equipment Showcase

Weld Quality：

Full-penetration welds, visually inspected to consistent cosmetic standards
Material Thickness Range：

0.5–6 mm (TIG) Up to 12 mm (MIG)
Typical Lead Time：

7–12 days
Cost：

Transparent quotes provided based on material, joint complexity, quantity, and finish requirements.
Weldable Materials：

Supports carbon steel, stainless steel, and aluminum with matched filler and shielding gas.

CNC Milling Factory

Established	2000
Number of Machines	70+
Location	Zhongshan

CNC Turning Factory

Established	2000
Number of Machines	30+
Location	Zhongshan

Die Casting Factory

Established	2010
Number of Machines	10+
Location	Zhongshan

Injection Molding Factory

Established	2008
Number of Machines	20+
Location	Zhongshan

Forging Factory

Established	2014
Number of Machines	10+
Location	Zhongshan

Custom Welded Metal Parts and Assemblies

Sheet Metal Enclosures and Cabinets

Keywin provide precision welding services for fabricated metal enclosures, equipment cabinets, and protective housings.

Our team coordinates cutting, bending, welding, and assembly to help maintain panel alignment, corner accuracy, and dimensional consistency.

These precision welding services are suitable for electrical enclosures, machinery covers, control cabinets, and industrial equipment housings.

Welded Frames and Structural Supports

Keywin manufactures custom welded frames, brackets, and supporting structures for machinery and industrial applications.

We review load requirements, joint design, material thickness, and welding sequences before production to minimize distortion and achieve the required assembly geometry.

Precision Brackets and Mounting Components

For components requiring accurate mounting positions, we use welding fixtures and in-process dimensional checks to maintain alignment.

Typical applications include equipment mounting brackets, industrial supports, robotic equipment components, and customized metal connections.

OEM Metal Assemblies

We support welding and mechanical assembly projects involving multiple fabricated or machined components.

By combining welding with CNC machining services, we help manufacturers produce assemblies requiring accurate mating surfaces, mounting holes, and fitted components.

Precision Welding Services for Different Industries

Our welding and assembly services support custom metal fabrication projects across multiple industrial sectors.

Industry	Typical Welded Components
Industrial Machinery	Equipment Frames, Bases, Brackets
Robotics & Automation	Mounting Structures, Frames, Equipment Housings
Automotive Equipment	Fabricated Brackets, Fixtures, Metal Assemblies
Consumer Electronics	Metal Enclosures, Cabinets, Protective Housings
Outdoor Equipment	Welded Supports, Frames, Structural Components

Each project is reviewed according to material specifications, mechanical requirements, production quantities, and inspection criteria.

Tolerance and Quality Control

Welding introduces localized heat that can distort thin sheet metal, so we control every stage — from fixturing to post-weld inspection — to keep parts within dimensional and cosmetic requirements.

Our QC workflow follows: Incoming Material Inspection → First Article Inspection (FAI) → In-Process Sampling → Outgoing Quality Control (OQC), with fixtured jigs holding part alignment throughout the welding process.

Weld quality is verified through visual inspection, and dye penetrant or leak testing where required, confirming full penetration and cosmetic acceptance criteria are met. Post-weld straightening and grinding keep dimensions within ±0.2–0.3 mm on critical features.

We support customized acceptance criteria, including weld inspection standards and material certification, for projects with specific compliance requirements.

Cooperation & Welding Process

Document Submission

Clients upload assembly drawings, confirm material, weld type, and joint requirements, and receive a quote.

Process Evaluation

Engineers review joint design and fixture requirements to control heat distortion on complex assemblies.

Process Planning

Finalize the weld sequence and fixture design to ensure consistent alignment across the full run.

Welding & Assembly Operation

Performs precision welding and mechanical assembly with in-process checks for alignment and weld quality.

FAQ

Do you accept prototype or small-batch orders?

Yes — we regularly produce anything from a single prototype to full production runs, with typical sample lead times of 3–7 working days.
What is your Minimum Order Quantity (MOQ)?

There is no fixed minimum — we accept orders starting from a single piece.
What is your production lead time?

Standard lead time is typically 7–12 working days depending on material, joint complexity, and assembly requirements.
What's your product price?

Pricing depends on material, joint complexity, quantity, and finish requirements. Upload your drawing for an instant quote.
What information do I need to provide for a quotation?

An assembly drawing or 3D CAD file showing weld joints and hardware, material and thickness, quantity, and any weld inspection or finish requirements.
Can you sign a Non-Disclosure Agreement (NDA)?

Yes, we routinely sign NDAs before reviewing customer drawings or discussing project details.

Sheet Metal Enclosures and Cabinets

Welded Frames and Structural Supports

Precision Brackets and Mounting Components

OEM Metal Assemblies

Precision Welding Services for Different Industries

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