Welding Service Process:

we provide high-precision fabrication of PLC Enclosure systems for industrial automation, process control, and manufacturing applications.

Engineering & DFM Review:

• Evaluate 2D/3D designs for weld accessibility and mechanical load
• Optimize seam layout to ensure structural stability and thermal dissipation
• Verify mounting interfaces for PLC modules and accessories

Material Preparation:

• CNC laser cutting for precise panel dimensions
• CNC tube bending for reinforced internal frames
• Surface preparation for optimal weld penetration and corrosion resistance

Welding Procedure Qualification:

• TIG welding for high-precision conductive joints
• MIG/MAG welding for structural reinforcement
• Procedures qualified under WPS/PQR and international standards

Precision Welding Execution:

• 20+ certified welders with expertise in carbon steel, stainless steel, and duplex steel
• Controlled deformation and seam monitoring to maintain tight tolerances
• Consistent weld quality ensured for both prototype and mass production

Inspection & Quality Control:

• Visual Inspection (VT) for weld consistency
• Dimensional inspection (CMM) to verify exact fit
• Dye Penetrant Testing (PT) for crack detection
• Optional load and thermal testing

Surface Finishing:

• Powder coating with grounded protection zones
• Electroless nickel or zinc plating for conductivity
• Anti-corrosion treatments for harsh industrial environments
• Optional EMC-grade finishing for sensitive installations

Advantages of Customized Welding Fabrication:

Carbon Steel PLC Enclosure:

• High structural rigidity for industrial control racks
• Cost-effective for large-scale production
• Supports heavy-duty PLC and module configurations
• Conductive coatings applied for proper grounding

Stainless Steel PLC Enclosure:

• Superior corrosion resistance for chemical or humid environments
• Long-term dimensional stability under industrial conditions
• Available in 304/316/316L for critical automation systems
• Ideal for factory automation and process control panels

Aluminum PLC Enclosure:

• Lightweight for easier installation and transport
• Excellent heat dissipation for high-density electronic modules
• High machining precision for modular designs
• CNC tube bending ensures reinforced frame stability

Technical Summary:

• 20+ ASME IX certified welders
• Tight tolerance control (<0.5mm for critical assemblies)
• Full material traceability (EN 10204 3.1 certification)
• Supports custom designs with high repeatability

Applications:

VT-Verified Assemblies:

Used in standard industrial automation systems where visual weld quality and structural integrity are sufficient.

PT-Verified Assemblies:

Applied in sensitive PLC control systems requiring crack-free welds and reinforced frames.

UT-Inspected Assemblies:

Used in critical manufacturing environments where internal weld integrity ensures 24/7 operation.

Thermal & Load-Tested Assemblies:

Designed for high-density PLC racks where heat dissipation and mechanical performance are essential.

Each solution ensures long-term stability, safety, and operational reliability in demanding industrial settings.

Material Selection:

Standard Material Options:

• Cold-rolled steel (SPCC / CR) for rapid-turn production
• Stainless steel 304 for indoor or humid environments
• Aluminum 5052 / 6061 for lightweight and thermal efficiency

Surface Treatment & Finishing:

• Powder coating for corrosion resistance and aesthetics
• Zinc or tin plating to maintain electrical continuity
• Electroless nickel plating for advanced conductivity
• Optional conductive gasket integration for EMC-sensitive applications

Materials are chosen to balance durability, cost, and environmental suitability while maintaining production efficiency.

Customer Case:

A European automotive automation company required custom PLC Enclosure solutions for high-density control panels in their production lines. Previous enclosures were prone to deformation and uneven heat distribution.

Our team manufactured stainless steel 316 enclosures with TIG-welded frames and CNC-bent internal supports. Conductive nickel plating was applied for grounding, and powder coating protected against factory floor exposure.

The client reported improved thermal management, reduced maintenance, and enhanced reliability. This design has since become their standard solution across multiple assembly lines.

FAQ:

What is the minimum order quantity?

We support MOQ starting from 1 prototype unit for testing and validation, with scalable mass production for OEMs.

What is the typical lead time?

Standard PLC Enclosure projects take 3–5 weeks. Complex designs or outdoor-rated enclosures may take 6–8 weeks.

Can you produce small batches?

Yes. We specialize in prototype runs, pilot production, and low-volume orders while ensuring consistent quality.

How do you ensure structural and electrical performance?

Qualified welding procedures, deformation control, surface conductivity treatment, and optional EMC testing ensure reliable operation.

What delivery terms are available?

EXW, FOB, CIF, and DDP with global shipping via air, sea, or express courier.

Can you handle OEM customization?

Yes. Fully customized PLC Enclosure solutions are available based on engineering drawings, 3D models, or functional requirements.

Which industries do you serve?

Our enclosures are widely used in industrial automation, process control, manufacturing, and factory floor PLC systems.