Complete Powder Coating Solutions for Metal Products
10+ years of industry expertise. Custom coating services with ISO certification, advanced equipment, and guaranteed quality. From sample testing to large-scale production.
Years Experience
Projects Completed
Certified Quality
Powder Recovery
Color Precision
Technical Support
Why Choose Our Powder Coating Services
We combine decades of expertise, advanced equipment, and customer-first service to deliver coating excellence.
Advanced Equipment
State-of-the-art spray booths, electric/gas curing ovens, and recovery systems. Complete control over coating quality and precision.
Expert Engineering Team
10+ years industry experience with 5+ specialized engineers. Custom solutions tailored to your specific production requirements.
Quality Guaranteed
ISO certified | ΔE≤1.0 color control | <1% defect rate. 100% inspection & advanced testing equipment ensure premium results.
Fast Turnaround
Samples: 24-48 hours | Small batches: 3-5 days | Large orders: 2-4 weeks. Reliable delivery with real-time production updates.
Flexible Capacity
Handle 50 pcs to 10,000+ pieces per order. Support small batch, medium volume, or full-scale production efficiently.
Cost Efficient
No hidden fees | Transparent pricing | Volume discounts available. Energy-efficient equipment reduces operational costs.
Our Service Coverage & Capabilities
We handle virtually any metal product. Check our coverage to see if your project fits our scope.
✓ Materials We Coat
✓ Product Size Range
✓ Production Capacity
✓ Turnaround Time
Not sure if we can handle your specific needs?
Our Powder Coating Process
Five-step precision process ensuring superior coating quality, durability, and environmental compliance.
Pre-treatment
Professional surface preparation removes oil, grease, oxide, and rust. This crucial step ensures superior coating adhesion and long-term durability.
Powder Spray Application
Advanced electrostatic spray guns apply an even powder coating. Our precision equipment ensures >98% coverage with >95% powder recovery for environmental protection.
Curing / Baking
Thermal curing melts and fuses the powder coating into a durable finish. Precise temperature control ensures consistent coating strength and durability.
Quality Inspection
100% inspection using advanced testing equipment. We verify coating thickness, color accuracy, hardness, and adhesion to guarantee perfection.
Packing & Shipment
Professional protective packaging prevents damage in transit. Complete documentation and global logistics support ensure safe delivery.
Industries We Serve
Proven expertise across multiple industries. Find your sector and see how we've delivered success.
Metal Furniture & Storage
Frames, shelves, cabinets, storage racks with protective and decorative coatings.
Electrical Cabinets & Enclosures
Control cabinets, distribution boxes, junction enclosures with corrosion protection.
Aluminum Profiles & Materials
Window frames, curtain walls, aluminum components with decorative finishes.
Hardware & Fasteners
Bolts, screws, hinges, handles with precision batch coating capability.
Sheet Metal Components
Stamped, folded, and welded metal parts with uniform coating coverage.
Industrial Equipment Parts
Machine components, automation parts with protective and decorative finishes.
Automotive & Transportation
Vehicle frames, brackets, trim parts meeting automotive industry standards.
Custom OEM / ODM Solutions
Specialized products with unique requirements. Tailored processes for any industry.
Don't see your industry? We serve 10+ sectors and continuously expand our expertise.
Our Coating Excellence Portfolio
Proven quality across 500+ successful projects. See how we've transformed metal components for industries worldwide.
Furniture Frame Assembly
RAL 5014 Blue | 1,500 pcs | Ø2-4mm Steel
Industrial Storage Racks
RAL 7035 Gray | 800 pcs | Sheet Metal
Control Cabinet Enclosure
RAL 9007 Gray Aluminum | 300 pcs | 2mm Steel
Fastener & Handle Assembly
RAL 6009 Dark Green | 5,000 pcs | Various Metals
Building Material Profiles
RAL 3020 Red | 2,000 pcs | Aluminum Extrusion
Fabricated Equipment Base
RAL 7016 Black | 400 pcs | Welded Steel
Precision Stamped Components
RAL 5012 Light Blue | 8,000 pcs | Steel Stamping
Heavy Equipment Parts
RAL 1021 Yellow | 200 pcs | Cast Iron Assembly
Vehicle Component Coating
RAL 9003 White | 600 pcs | Steel Brackets
Custom OEM Assembly
RAL 6005 Green | 1,200 pcs | Mixed Metals
Electronic Device Enclosure
RAL 7001 Silver Gray | 2,500 pcs | Sheet Metal
Large Batch Production
RAL 3004 Purple Red | 15,000 pcs | Steel
Want to see our complete portfolio? View all 500+ completed projects →
Trusted by Industry Leaders
Our customers across China and Southeast Asia rely on our quality, reliability, and professional service.
Partner with Leading Manufacturers
Mr. Jacob
Canada Furniture Manufacturer
"We engaged KeTu to design and build our electrostatic powder coating production line. Their expertise in energy saving and consumption reduction has significantly reduced our costs. With rich industry experience, they excel in solving complex problems and providing excellent customer service."
Mr. Stephen
USA Metal Components
"The quality and color of the products sprayed with their equipment are very good. When our products were inspected by our customers, the super high quality of the product coating was recognized. This kept us in the minds of customers."
Ms. Diana
International Manufacturing
"They have rich knowledge in the field of coating, and can quickly understand my needs and tailor a solution for us. They have a strong customer service team and are very efficient in responding to problems. Always feel their efficiency and reliability."
Ryan
Canadian Enterprise
"Foshan Nanhai District Ketu's professional knowledge and experience in the industry are truly excellent. Their team demonstrated superb technical capabilities, but also showed a high sense of responsibility and professionalism in cooperation."
Alexander
American Distributor
"The quality and color of the products sprayed with their equipment are very good. When our products were inspected by our customers, the superb quality of the product coating was recognized immediately, keeping us at the forefront of their minds."
500+
Completed Projects
98%
Customer Satisfaction
20+
Years Experience
10+
Industries Served
From Factory to Your Production Floor
Complete delivery, installation, and commissioning support. We handle every step to ensure smooth operation.
Equipment Preparation
All equipment undergoes comprehensive quality checks, protective packaging, and preparation for shipment. We ensure every component is secure and protected during transport.
- ✓ Final quality inspection completed
- ✓ Professional protective wrapping applied
- ✓ Complete documentation prepared
Safe Transport
Proper loading onto dedicated transport vehicles with professional logistics coordination. Real-time tracking available for all shipments.
- ✓ Professional loading teams
- ✓ Real-time shipment tracking
- ✓ Insurance coverage included
Site Unloading & Setup
Our professional technicians oversee careful unloading and positioning of all equipment at your facility. Initial site assessment and preparation begins.
- ✓ Safe equipment positioning
- ✓ Damage inspection on arrival
- ✓ Site conditions verification
Professional Installation
Expert technicians install and assemble all components according to specification. Precise alignment, connections, and system integration completed.
- ✓ Complete equipment assembly
- ✓ Utility connections (power, water, gas)
- ✓ System integrity verification
Commissioning & Testing
Comprehensive system testing with trial runs. All parameters calibrated, safety systems verified, and performance benchmarks confirmed.
- ✓ Full system startup and dry runs
- ✓ Parameter calibration and tuning
- ✓ Trial coating and quality verification
Operator Training
Comprehensive training for your operators and maintenance staff. Detailed documentation, troubleshooting guides, and ongoing support provided.
- ✓ Hands-on operator training
- ✓ Maintenance and troubleshooting guidance
- ✓ Documentation and video tutorials
Continuous Support
24/7 technical support, spare parts availability, preventative maintenance scheduling, and performance optimization consulting.
- ✓ 24/7 remote technical support
- ✓ On-site maintenance visits
- ✓ Spare parts and upgrades available
Ready to bring professional coating equipment to your factory?
From Inquiry to Production: 6-Step Process
Simple, transparent steps to get your powder coating solution up and running.
Initial Consultation
Describe your product, material, and requirements
~30 mins - 2 hrs
Sample Testing
Coat your sample & conduct full QC
1-3 days
Negotiation
Approve results, finalize pricing & terms
1-3 days
Production
Your order enters production schedule
Variable
QC & Packing
100% inspection & professional packing
1-2 days
Delivery & Support
Shipment tracking & ongoing assistance
Variable
Initial Consultation
Describe your product, material, requirements, and production volume
~30 mins - 2 hrs
Sample Testing
Send sample → Full process trial → Complete QC report & results
1-3 days
Negotiation
Approve sample results → Finalize pricing → Sign contract & PO
1-3 days
Production
Order scheduled → Progress updates → Mid-process quality checks
3-30+ days
QC & Packing
100% final inspection → Professional protective packing → Prepare shipping docs
1-2 days
Delivery & Support
Shipment tracking → Logistics coordination → 24/7 post-delivery support
Variable
Fast Turnaround
From initial inquiry to sample in as little as 1-3 days. No delays, no surprises.
Transparent Communication
Regular updates at each stage. You're always informed of progress and timelines.
Transparent Pricing
No hidden fees or surprise charges. All costs clearly outlined upfront.
Quality Guarantee
100% satisfaction backed by our quality guarantee and post-delivery support.
24/7 Support
Round-the-clock technical support available via phone, email, WhatsApp, or remote connection.
Flexible Solutions
From small batches to large production runs, we adapt to your timeline and requirements.
Ready to Start Your Powder Coating Journey?
Let's discuss your specific requirements and find the perfect coating solution for your products.
Technical Specifications & Capacity
Precise parameters and production capacity ranges to support your technical decision-making and production planning.
Key Technical Parameters
Pre-Treatment System
Spray Application System
Curing System
Coating Performance
Production Capacity & Lead Time Reference
| Product Type | Min. Order | Daily Capacity | Lead Time |
|---|---|---|---|
| Metal Furniture Frames | 50 pcs | 200–300 pcs | 3–5 days |
| Storage Racks | 50 pcs | 100–200 pcs | 5–7 days |
| Electrical Enclosures | 10 pcs | 50–100 pcs | 7–10 days |
| Small Hardware | 500 pcs | 2,000–5,000 pcs | 5–10 days |
| Custom Complex Parts | On Request | On Request | 10–20 days |
Note: Lead times are indicative and subject to order complexity, current production load, and seasonal demand. Contact our team for expedited or customized scheduling options.
Need Custom Specifications?
Our engineering team can adapt processing parameters, capacity schedules, and delivery timelines to match your specific production requirements. Whether you need extended curing times for specialized coatings, higher throughput for mass production, or custom size accommodations, we have the flexibility to support your goals.
Quality Assurance & Certifications
ISO-certified processes, advanced testing equipment, and comprehensive quality guarantees ensure every coating meets the highest standards.
✓ International Certifications
ISO 9001:2015
Quality Management System
ISO 14001:2015
Environmental Management System
ISO 45001:2018
Occupational Health & Safety
ROHS & REACH Compliant
Regulated substances control
All certifications current and verified by independent accredited bodies.
🔬 Testing Capabilities
Thickness Measurement
Eddy-current gauge; precision ±5 µm
Color Matching
Spectrophotometer; ΔE ≤ 0.5 (5° observer)
Hardness Testing
Pencil hardness method; 0–9H scale
Adhesion Testing
Cross-hatch & pull-off methods (ISO 2409)
Salt Spray Testing
ASTM B117; up to 1000 hours
Impact Resistance
Forward & reverse impact testers
✓ 100% Batch Inspection | Each batch undergoes full QC testing before shipment
🛡️ Quality Guarantees
Film Thickness Guarantee
60–120 µm ±10 µm precision
Color Consistency
ΔE ≤ 1.0 across entire batch
Defect Rate
< 1% rejection rate; free replacement
On-Time Delivery
Penalty clauses for delayed shipments
24/7 Technical Support
Remote & on-site assistance available
2-Year Warranty
Full coating performance guarantee
Your Peace of Mind, Our Commitment
We don't just meet standards—we exceed them. Every product undergoes rigorous testing, and every customer receives transparent documentation proving compliance and quality. If something doesn't meet spec, we make it right, no questions asked.
Ready to Improve Your Coating Results?
Our team is ready to assess your specific needs, answer technical questions, and provide a custom proposal—no obligation, completely free.
Free Sample Testing
No cost for initial trial
Expert Consultation
10+ years experience on call
Transparent Pricing
Zero hidden fees guaranteed
24-Hour Response
Quick turnaround on inquiries
Or call us directly: +86 180-6466-8879 | Email: inquiry@coating-machinery.net
Your Complete Powder Coating Services Guide
7 essential topics to help you understand the coating process, evaluate service providers, and make the right decision for your business.
Powder coating uses electrically charged powder particles that cling to metal surfaces via electrostatic attraction. The coated object is then heated in a curing oven where the powder particles melt and fuse into a protective, seamless layer.
Why it's better: More durable than liquid paint, 95%+ material recovery, faster curing, superior finish quality, and environmentally friendly.
We coat all common metals: steel, aluminum, copper, stainless steel, and alloys. Pre-treatment (degreasing, rust removal, phosphate coating) is critical to ensure powder adhesion and coating longevity.
Material exclusions: Glass, ceramics, most plastics, and extremely porous surfaces require custom assessment.
Key metrics:
- ΔE (color difference): ≤1.0 ensures visual consistency
- Film thickness: 60–120 µm provides durability and corrosion resistance
- Hardness: ≥2H (pencil scale) means scratch resistance
- Adhesion: ≤1 Grade (ISO 2409) means coating won't peel
Our typical capacity ranges from 50 pcs (small batch) to 10,000+ pcs (large batch). Lead times vary: small batches 3–5 days, medium batches 5–10 days, large batches 2–4 weeks. We can accommodate rush orders with premium pricing.
Planning ahead ensures lower costs and better scheduling. Contact us early to lock in your delivery date.
Cost is determined by: material type, product size/weight, complexity (prep time, geometry), color, batch volume, and desired thickness. Volume discounts apply—larger orders cost less per unit.
Our promise: Zero hidden fees. All expenses itemized upfront. No surprise surcharges at delivery.
What to look for:
- ISO certifications (9001, 14001, 45001)
- Advanced testing equipment (color meter, thickness gauge, salt spray chamber)
- Documented case studies and client references
- Responsive, knowledgeable technical team
- Clear warranties and quality guarantees
Red flags: No certifications, vague pricing, slow communication, no quality documentation, pressure tactics.
After delivery, our commitment continues: installation support, operator training, 24/7 technical hotline, spare parts supply, remote/on-site troubleshooting, and periodic maintenance. Most issues are resolved within 24 hours.
We aim to be your long-term partner—not just a one-time vendor. Future upgrades, capacity expansions, and process improvements are always on the table.
Ready to Take the Next Step?
Use these 7 sections as a checklist when evaluating powder coating services. Our team is here to answer any remaining questions and provide a custom assessment for your specific needs.
How to Choose the Right Powder Coating Partner
Navigate key factors to ensure quality, cost-efficiency, and reliable delivery for your coating needs
Understand Powder Coating Fundamentals
Powder coating uses dry powder applied electrostatically, then heat-cured to form a protective layer. It's more eco-friendly, durable, and cost-effective than liquid paint for metal products.
Material Compatibility & Pre-treatment
We support all common metals: steel, aluminum, copper, stainless steel, and alloys. Different materials require tailored pre-treatment (degreasing, rust removal, phosphating) to ensure optimal coating adhesion.
Key Quality Metrics Explained
Critical specs: film thickness (60–120 µm), color match (ΔE≤1.0), hardness (≥2H), and adhesion (≤1 grade). We control every metric to ensure batch-to-batch consistency and long-term durability.
Capacity Planning & Lead Times
Our capacity ranges 50–10,000 pcs/order. Small batches (≤100): 3–5 days. Medium batches (100–1,000): 5–10 days. Large orders (>1,000): 2–4 weeks. Plan ahead for optimal scheduling.
Transparent Cost Structure
Costs vary by material, size, complexity, and volume. We provide transparent quotes with no hidden fees. Volume discounts available. Contact us with your specs for an accurate, itemized estimate.
Evaluating Your Coating Vendor
Look for ISO certification, comprehensive testing labs, proven case studies, and professional after-sales support. Ketu brings 20+ years, 500+ projects, ISO 9001/14001 certified quality, and 24/7 technical backing.
Clear Collaboration Process
From initial consultation, sample testing, commercial negotiation, production, QC, and delivery—every step is transparent. We provide progress updates, documentation, and full-circle support to eliminate surprises and ensure success.
Frequently Asked Questions
Get quick answers to common concerns about our powder coating services
Service Scope & Capabilities
What materials and product types can you coat? +
We handle all common metals: steel, aluminum, copper, stainless steel, and specialty alloys. Product size range: 50mm to 2000mm+; weight: 0.1kg to 500kg. Applications span furniture, electrical enclosures, machinery, automotive, and more. We can coat complex shapes (welded, stamped, cast parts). Contact us with product details or samples for material compatibility assessment.
How long does sample coating take? +
Typical turnaround: 1–3 days for standard samples. Complex processes or custom requirements may take 5–7 days. We confirm exact timelines upon order receipt. Fast feedback supports your decision-making process.
What is your minimum order quantity (MOQ)? +
Standard MOQ: 50–100 pieces. For small batches or special cases, we'll negotiate. Reach out with your quantity to explore options.
Can you handle custom or complex product shapes? +
Yes. We've successfully coated welded assemblies, stamped components, castings, and intricate geometries. Custom fixturing may be required. Send drawings or samples for a feasibility review.
Quality & Lead Times
How do you ensure consistent coating quality? +
Every batch undergoes 100% inspection: film thickness (60–120 µm ±10 µm), color match (ΔE≤1.0), hardness (≥2H), and adhesion testing (≤1 grade). Our defect rate is <1%. Advanced test equipment and trained QC staff verify compliance before shipment.
What is your typical turnaround time for mass orders? +
Small batches (<100 pcs): 3–5 days. Medium batches (100–1,000): 5–10 days. Large batches (>1,000): 2–4 weeks. Timelines depend on production load. Early communication ensures optimal scheduling.
Do you accept rush or emergency orders? +
We do. Rush orders may incur expedite fees, depending on current capacity. Contact us immediately to discuss your urgent needs and explore feasibility.
Can you match specific colors (e.g., RAL codes)? +
Absolutely. We match RAL, Pantone, NCS, and custom color standards. Color accuracy typically ΔE≤1.0. Send a color sample or swatch; we'll provide a test sample for verification.
Costs & Commercial Terms
How is your pricing structured? +
Pricing reflects material type, product size, process complexity, production volume, and color selection. We provide transparent, itemized quotes. Send product specs for an accurate estimate.
Are there volume discounts? +
Yes. Discount tiers apply based on order volume. Discuss bulk pricing with our sales team for long-term partnerships.
Are there hidden fees or additional charges? +
No hidden fees. Our quote includes materials, labor, packaging, and QC. Any special requests (custom packaging, expedite, rare materials) are flagged upfront for your approval.
Support & Logistics
What after-sales support do you offer? +
24/7 technical support (phone, email, chat). Remote or on-site assistance available. 2-year coating performance warranty. Non-conforming goods can be reworked or replaced at no cost.
Do you support international shipping? +
Yes. We handle global logistics with FOB, CIF, and DDP options. Assistance with export documentation, customs clearance, and tracking. Experienced with shipments to Southeast Asia, Europe, North America, and beyond.
How quickly do you respond to customer inquiries? +
Standard response: 2–4 hours. 24/7 hotline for urgent issues. Multilingual support team ensures clear communication.
Can you provide documentation or compliance certificates for import? +
Yes. We provide invoices, packing lists, quality certificates, CoC (Certificate of Conformance), and origin certificates. All documents comply with importer requirements and trade regulations.
Still have questions? Our team is ready to help.
Ready to Transform Your Coating Process?
Get a free professional consultation and custom quote within 24 hours. No obligation, no fees.
Response within 24 hours | Available Mon–Fri 8AM–6PM CST | Urgent? We're here 24/7
English 
German 
Vietnamese 
French