Industrial 4 layers PCB Assembly Manufacturing High TG ENIG RoHS Compliant
Suntek Group is a certified contract supplier in the EMS field providing comprehensive one-stop solutions for PCB/FPC assembly, cable assembly, and box-build assembly.
Company Facilities
Suntek Electronics Co., Ltd - Main facility located in Hunan Province, China
BLSuntek Electronics Co., Ltd - New facility located in Kandal Province, Cambodia
Certifications
ISO9001:2015, ISO13485:2016, IATF 16949:2016 and UL E476377 certified
Our Services
With your Gerber file and BOM, we transform designs into finished products
Reverse-engineering services from physical samples
Joint-design services to bring your ideas to life
Technical Capabilities
| Specification |
Details |
| Material type |
FR-1, FR-4, CEM-1, aluminum clad |
| Material thickness (mm) |
0.4, 0.6, 0.8, 1.0, 1.2, 1.6, 2.0 |
| Layer count |
1 to 8 Layers |
| Max. Board size |
23.00" x 35.00" (580mm*900mm) |
| IPC class |
Class II, Class III, Class 1 |
| Finish plating |
Solder(HASL), Lead Free Solder(HASL), ENIG, OSP, immersion silver, immersion tin, immersion nickel, hard gold |
| Copper weight |
0.5OZ-2OZ |
| Trace/space width |
3 Mils or greater |
| SMD pitch |
0.080" - 0.020" - 0.010" |
| Solder mask color |
Green, red, blue, black, white, yellow |
Comprehensive Manufacturing Services
- PCB/FPC fabrication
- Components sourcing
- PCB/FPC assembly
- Custom cable/harness assembly
- Box build assembly
Assembly & Testing Services
- SMT, THT, BGA, 0201 Chips assembly
- AOI, X-Ray, ICT, FT, Burn-in testing
- Conformal coating or gluing
- High-mix, small to medium volume production
EMS Quality Advantages
- Strict product liability following IPC-A-610 standards
- Fluent English-speaking teams
- PDCA management methodology
- 100% E-test and visual inspection throughout production
- Comprehensive AOI inspection including X-ray, 3D microscope and ICT
- High-voltage test, impedance control test
- No minimum order quantity
- Focus on low to medium volume production
- Quick and on-time delivery
Why Choose Suntek?
As an experienced and reliable manufacturer, Suntek provides comprehensive one-stop services including PCB manufacturing and assembly for global customers with diverse project requirements.
Instant Quote Service
Receive our instant quote within 24-48 hours with positive feedback for all your project specifications.
Expert Technical Support
Our professional engineers provide technical support from PCB design through turnkey assembly, with prompt responses throughout the process.
Advanced Automation
State-of-the-art automatic equipment ensures high efficiency, cost-effectiveness, and competitive pricing with on-time delivery.
Dedicated After-Sales Service
We track all orders continuously, with customer service representatives providing instant updates at every production stage.
Customer Support & Quality Assurance
We ensure complete cost transparency with BOM cost breakdown sharing and source components globally from trusted suppliers.
Quality Management Procedures
- Customer service procedure
- RMA procedure
- 8D reports for issue resolution
- PDCA (Plan-Do-Check-Action) methodology
Response Commitment
We respond to all complaints, issues, and queries within 24 hours through weekly reports, dedicated customer support teams, and satisfaction questionnaires.
After-Sales Guarantee
- 1-year guarantee period for all products
- Free of charge repair services
- Quick replacement parts for defective components

PCBA Assembly Process Flow

Frequently Asked Questions
Q1: What files do you use in PCB fabrication?
A1: Gerber, PCB, and Auto CAD files
Q2: How do you ensure quality?
A2: All products are 100% E-tested. PCB assemblies undergo 100% AOI, ICT, FT, visual inspection, and X-ray for BGA components.
Q3: Can we visit your company?
A3: Yes, we welcome visits to our facility at Xingsha Industrial Park, Changsha, Hunan province, China.
Q4: What is the lead time?
A4: Samples: 3-5 working days; Batch production: 7-10 working days; PCB assembly: 15-20 working days.
Q5: Will you keep our information and files confidential?
A5: Absolutely. Protecting customer designs and business secrets is our fundamental principle. NDA can be signed at any time.
Q6: How do we work with you?
A6: Email us your PCB layout file and BOM list. We provide confirmation within 12 hours and quotes within 3-5 days. After price confirmation and payment, we proceed with your order.
We utilize advanced manufacturing equipment and technology, supported by professional engineering, purchasing, quality, and management teams to guarantee high-quality products and on-time delivery. Our products serve industrial control, automotive, telecommunications, medical equipment, consumer electronics, and related industries.
Factory Facilities
