Feiliz Tech
FEILIZ TECH · Dongguan Factory

PCB & Manufacturing
Solutions for
HOME APPLIANCES

From schematic design to mass production -- FEILIZ delivers custom PCB/PCBA engineering, DFM analysis, and one-stop manufacturing for global air purifier and fan brands. Faster NPI. Lower cost. Zero surprises.

−30%
Unit Cost Reduction
3 Wks
NPI Kick-Off
<1‰
Defect Rate
ISO 9001 Certified
10,000m² Factory
5 SMT Lines
COFFEE MAKER PCB RICE COOKER PCB ELECTRIC KETTLE Controller Board BREAD MAKER PCBA WATER HEATER PCBA One-Stop Manufacturing
What We Build

PCB Samples &
Full-Stack Services

Real boards we've engineered for home appliances -- plus the complete manufacturing services behind every successful project.

PCB / PCBA Samples

// Home Appliance Product Lines

Coffee maker main control PCBA
PCBA

Coffee Maker Main Control Board

Precision brewing temperature controller with NTC thermistor sensing, keep-warm function, programmable brew timer, anti-drip valve driver, and water-shortage protection.

  • Heating: stainless steel element
  • Layers: 2-layer FR4
  • Certifications: CE / RoHS / ETL
Bread maker motor and heating control PCBA
PCBA

Bread Maker Motor & Heating Control Board

Multi-program bread maker PCBA with DC motor kneading drive, closed-loop temperature control for baking chamber, 15-hour delay timer, crust-color selection, and overload protection.

  • Bake temp: 100-180 °C
  • Control: MCU closed-loop
  • Certifications: CE / UL / RoHS
Rice cooker fuzzy logic control PCBA
PCBA

Rice Cooker Fuzzy Logic Control Board

Intelligent rice cooker PCBA with fuzzy logic algorithm, multi-cooking-mode selection, NTC bottom-sensor temperature feedback, 24-hour keep-warm, and steam-vent solenoid driver.

  • Heating: IH / PTC plate
  • Input: 110V / 220-240V AC
  • Certifications: CE / ETL / SAA
Electric kettle temperature control PCBA
PCBA

Electric Kettle Temperature Control Board

Variable-temperature kettle PCBA with precision NTC sensing, preset temperature modes (60-100 °C), 30-minute keep-warm, boil-dry protection, and LED ring indicator driver.

  • Temp accuracy: ±2 °C
  • Protection: dry-burn / overheat
  • Certifications: CE / RoHS / FCC
Water heater power control PCBA
PCBA

Water Heater Power & Safety Control Board

High-power water heater PCBA with dual NTC temperature sensing, TRIAC heating element control, anti-scald protection, leakage detection circuit, and digital display driver for instant or storage-tank models.

  • Rated power: up to 3500W
  • Input: 110V / 220-240V AC
  • Certifications: CE / RoHS / CB

Manufacturing & Support Services

// End-to-End, In-House Capabilities

PCB Hardware Design

Schematic capture, multi-layer PCB layout, signal integrity analysis, and EMC design for air purification electronics. 15+ year senior engineers on every project.

  • 2-12 Layer PCB Design
  • DFM / DFA Analysis
  • EMC Pre-compliance

Firmware & Software Dev

Embedded C/C++ firmware for MCU platforms, IoT cloud connectivity (Tuya, AWS IoT), mobile app integration, and OTA update support.

  • STM32 / ESP32 / NXP
  • Wi-Fi / BLE / Zigbee
  • Tuya / Matter Protocol

SMT PCBA Assembly

5 fully automated high-speed SMT lines. Capable of 0201 components, BGA, QFN. AOI + X-ray inspection on every batch.

  • 5 SMT Lines, 10,000m²
  • AOI + X-Ray Inspection
  • IPC-A-610 Class 2/3

Structural & Mold Design

In-house structural engineers coordinate injection molding, metal stamping, and sheet metal for fan housings, grilles, and air purifier enclosures.

  • Injection Molding
  • Metal Stamping / CNC
  • Rapid Tooling in 2 Weeks

Final Assembly & Testing

Complete product assembly, functional testing, aging burn-in, and packaging. Ready-to-ship finished goods from one factory, one partner.

  • Functional Test Fixtures
  • 48-Hour Aging Burn-in
  • Custom Packaging & Label

NPI & Cost Optimization

VA/VE value engineering, BOM cost-down, alternative component sourcing, and rapid prototyping to reduce unit cost by 20-40% before mass production.

  • VA/VE Analysis
  • BOM Cost-Down Review
  • Prototype in 3 Weeks
Why FEILIZ
15+
Years Senior
Engineers
10K
Factory
Floor Area
5
Full-Auto
SMT Lines
30+
Degree-Holding
Engineers

Certifications & Qualifications

// Verified credentials for global compliance

ISO 9001:2015
Quality Management System -- international standard for consistent manufacturing quality control.
ISO 14001:2015
Environmental Management System -- commitment to sustainable, eco-responsible manufacturing.
National Hi-Tech Enterprise
Certified by the Chinese government as a high-technology enterprise with proven R&D capabilities.
Multiple Patents
Registered utility model and invention patents covering PCB design innovations and manufacturing processes.
Software Copyrights
Proprietary embedded firmware and software tools with registered copyright protection for client IP security.
CE / FCC / RoHS
Products designed and tested to meet CE (EU), FCC (US), and RoHS compliance requirements for global market access.

Inside Our Factory

// 10,000m² Dongguan Manufacturing Base

5 fully automated SMT lines, aging test chambers, functional test stations, and a dedicated quality inspection lab -- all under one roof.

FEILIZ SMT production line
SMT Production Line
5 High-Speed Panasonic & Yamaha Machines
FEILIZ AOI inspection station
AOI + X-Ray Inspection
100% Board Inspection, <1‰ Defect Rate
FEILIZ engineering R&D lab
R&D Engineering Lab
36 Degree-Holding Engineers On-Site
FEILIZ aging and functional test area
Aging Test Chamber
48-Hour Burn-In for Every Production Batch
FEILIZ finished goods warehouse
Finished Goods Warehouse
Bonded Logistics, Global Export Ready
Factory tour video thumbnail
2:00
// Factory Tour Video

See Our Production Process Live

Watch a 2-minute walkthrough of our SMT lines, quality inspection, and assembly area. No sales pitch -- just real footage.

Our Production Process

// From your idea to finished product -- transparent at every step

01

Requirements & NDA

Share your spec, drawings, or idea. We sign NDA immediately and assign a dedicated engineer.

~Day 1-2
02

DFM & Quotation

Free DFM analysis report, BOM cost-down review, and detailed technical + commercial quotation within 3 business days.

~Day 3-5
03

Prototype & Validation

PCB design, firmware development, rapid prototyping. EVT/DVT samples with full test reports and engineering sign-off.

~Week 3-6
04

Pilot Run & Approval

Small-batch pilot production, IQC/IPQC/OQC inspection, aging test, and client approval before mass production order.

~Week 7-9
05

Mass Production & Export

Full-scale production, 100% AOI + functional test, packaging, and global export logistics coordination by our 16-year trade team.

~Week 10+

Client Testimonials

// What our global partners say about working with FEILIZ

"FEILIZ helped us cut our air purifier PCBA unit cost by 34% through their VA/VE analysis. Their engineers found 11 BOM optimizations we'd never considered. Delivery was on time, quality was perfect. We've since moved 3 more product lines to them."

Client photo
Marcus T.
VP Operations · Air Purifier Brand · Germany

"As a startup, we needed a partner who could handle everything from PCB design to final product. FEILIZ delivered our BLDC fan controller prototype in just 3 weeks. Their engineers proactively caught 2 design issues that would have caused EMC failures. Exceptional team."

Client photo
Sarah K.
Founder · Smart Fan Startup · Australia

"We've worked with 4 Chinese PCBA factories before FEILIZ. The difference is their engineering depth -- they actually understand air purifier electronics, not just assembly. Their weekly progress reports and transparent communication made the whole process stress-free from Dubai."

Client photo
Ahmed R.
Procurement Director · Home Appliance Brand · UAE
Overseas Buyer FAQ

Your Questions,
Answered Honestly

Everything you need to know about sourcing PCB/PCBA and manufacturing from China -- no fluff, no marketing speak.

What is your minimum order quantity (MOQ) for air purifier PCBAs? +
For prototyping and samples, we have no minimum -- even 1 piece is accepted for engineering validation. For small-batch production, our typical MOQ starts at 50-100 units, and for mass production orders, 500+ units. We're flexible and happy to discuss your specific volume requirements.
How do you protect my intellectual property and design files? +
IP protection is taken seriously. We sign a mutual NDA immediately before any technical discussion. All design files are stored on access-controlled internal servers. We never share client designs with third parties. As a National Hi-Tech Enterprise with registered software copyrights and patents, we understand the value of IP and have robust internal policies to protect it.
How long does it take from design to first prototype? +
For a new PCB design project: typically 3-5 weeks from confirmed requirements to first prototype boards. If you already have Gerber files and BOM, PCBA prototypes can be ready in 5-10 business days. Complex projects with firmware development may take 6-8 weeks. We provide a detailed timeline after reviewing your specifications.
Can you help me get CE, FCC, or other certifications for my product? +
Yes. We design with EMC compliance in mind from day one (CE, FCC, RoHS, REACH). Our engineers perform pre-compliance testing in-house to minimize costly failures at official test labs. We also work with accredited third-party labs and can coordinate the full certification process. We've successfully supported clients achieving CE, FCC, UKCA, SAA (Australia), and SASO (Saudi Arabia) certifications.
What quality control measures do you have in place? +
We operate a comprehensive quality system: IQC (incoming component inspection), IPQC (in-process quality control), and OQC (outgoing quality check). Every PCBA goes through 100% AOI (Automated Optical Inspection), X-ray inspection for BGA components, ICT/functional testing, and 48-hour aging burn-in. Our defect rate is below 1/1000. You receive full inspection reports with every shipment.
What payment terms do you accept for international orders? +
We accept T/T (bank wire transfer) as the primary method. Our typical terms are 30% deposit before production, 70% before shipment. All transactions are in USD. We provide formal invoices and full export documentation.
Can I visit your factory before placing an order? +
Absolutely -- we welcome factory visits and encourage them for significant orders. Our Dongguan factory is easily accessible from Shenzhen (45 min) or Guangzhou (60 min). We'll arrange airport pickup, factory tour, and technical meetings. If you can't visit in person, we offer live video factory tours via WhatsApp or Zoom -- just ask Evan to schedule one.
How do you handle component shortages or supply chain disruptions? +
Our procurement team actively monitors component availability and maintains safety stock for high-demand parts. When shortages occur, we proactively identify approved alternative components with equivalent specs and present options to clients with full technical justification. Our VA/VE team can also redesign around unavailable parts. We never substitute without client approval.
What shipping and logistics options do you offer? +
We ship globally via DHL, FedEx, UPS, and sea freight. Our 16-year international trade team handles all export documentation: commercial invoice, packing list, CO (Certificate of Origin), and customs declarations. We can ship EXW, FOB, CIF, or DDP -- whichever Incoterm works best for you. Full tracking is provided for every shipment.
What happens if there are quality issues after delivery? +
We stand behind our work with a 12-month warranty on all PCBA products. If defects are confirmed to be our manufacturing fault, we replace or rework at no cost. We conduct a thorough root-cause analysis (8D report) and implement corrective actions. Our goal is zero defects -- but if issues arise, we resolve them quickly and transparently. Client satisfaction is non-negotiable.
// Still have questions?

Our team is available on WhatsApp for real-time answers. No bots, no scripts -- just engineers and trade experts.

WhatsApp Evan Now
Take Action Today

Start Your
Free DFM Review

Send us your PCB files, BOM, or product idea. Our senior engineers will respond within 24 hours with a free DFM analysis and initial cost estimate -- no obligation.

Free Resource Gift

Submit Your Inquiry & Receive:

  • Free DFM Analysis Report
    Our engineers review your design files and identify manufacturing risks, cost-down opportunities, and compliance gaps -- free of charge.
  • China Sourcing Toolkit (pdf)
    This comprehensive toolkit provides a systematic framework for strategic supplier evaluation, cost management, compliance assurance, and product development. Designed for procurement professionals to make informed decisions while minimizing risks and maximizing value.
No spam, ever. Resources sent directly to your email within 24 hours of inquiry submission.

Direct Contact

WhatsApp (Same Number)
+86 135 3030 5326
Email (Evan, Sr. Engineering Account Manager)
[email protected]
Factory Address
3F, Bldg 2, Haiyong Tech Park, Zhutang Village, Fenggang, Dongguan
Dongguan · 45min from Shenzhen
// Response time: within 24 hours (usually <4 hours during business days)

Send Your Inquiry

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