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35 Year Pvd Coating Machine In Foxin
In-House PVD Coating for Stainless Steel Sinks: How a Guangdong Manufacturer Built Its Own Coating Line
Overview
In-house PVD coating for stainless steel sinks turns color finishing from an outside variable into a step you fully control — quality, scheduling and development speed all at once. This case follows a Guangdong sink manufacturer that replaced outsourced coating with its own line, built on a 2500 × 3300 mm multi-arc ion plating system from FOXIN. According to the customer, product yield rose by about 10 percentage points and on-time delivery improved by roughly 15%.
Project at a Glance
| Item | Detail |
|---|---|
| Customer | A stainless steel sink manufacturer in Guangdong, China |
| Industry | Kitchen sink and sanitaryware manufacturing |
| Products | Stainless steel kitchen sinks |
| Business model | Own brand plus OEM production for domestic sink brands |
| Main markets | China, Canada and North America |
| Previous finishing | Outsourced PVD coating |
| New equipment | 2500 × 3300 mm large PVD vacuum coating system |
| PVD technology | Multi-arc ion plating |
| Decorative finishes | Gunmetal, gun black, rose gold, gold, matte |
| Reported results | Yield up about 10 percentage points; on-time delivery up about 15% |
Who the Client Is
The customer is a stainless steel sink manufacturer based in Guangdong Province, China, focused on the development, production and sale of sink products.
The company runs its own brand and also produces OEM sinks for several domestic brands. Its products are sold mainly in China, with part of its output exported to Canada and North America.
As the sink market moved toward higher-end and more customized products, the customer wanted a more complete production system — including bringing surface treatment, which had been handled outside the factory, under its own roof.
The Real Challenge: Surface Finishing Sat Outside the Factory
Before this project, part of the customer’s sink range was coated by an outside processor. The customer made the sinks; the color work happened somewhere else. That split created four problems.
Quality Was Hard to Control
Because coating took place off-site, the customer could not take part in day-to-day process control. Color differences between batches were difficult to keep in check.
Delivery Dates Belonged to Someone Else
Outsourced coating ran on the processor’s schedule. When that processor was busy with other orders, the customer’s delivery dates moved with it.
New Colors Took Months
Developing a new color or finish depended on an outside partner’s availability and priorities. Feedback was slow, and development could stretch over several months.
The Production Chain Had a Gap
As an OEM supplier, the customer had to pass brand-owner factory audits — and those audits expect a complete manufacturing process. Without its own PVD step, the chain had a visible gap.
The upgrade path was simple on paper:
- Before: sink manufacturing → outsourced PVD coating → return to customer → delivery
- After: sink manufacturing → in-house PVD coating → quality control → delivery
Why They Chose FOXIN
The customer researched the PVD equipment market before buying. One signal stood out: many of the sink makers and processing shops known for stable quality were already running FOXIN equipment.
The customer weighed four things — coating quality consistency, equipment reliability, ease of operation, and how the equipment performs in real industry use. After that market review, they visited our factory to look at manufacturing capability, production management and live applications, and then confirmed the project.
The Solution: A 2500 × 3300 mm Large PVD Coating System
FOXIN supplied a large PVD vacuum coating system sized 2500 × 3300 mm, built on GD large multi-arc coating system technology for decorative coating of stainless steel sinks.
That format is one of the standard large sizes used in the sink industry (the common set is 2500 × 3000, 2500 × 3300 and 2500 × 3600 mm), and it suits large, flat workpieces such as sinks. For brushed-sink production, the brushing step is completed before coating, not after; the final decorative look depends on getting surface preparation right first.
Key Specifications
| Item | Specification |
|---|---|
| Application | Decorative PVD color coating for stainless steel sinks |
| PVD technology | Multi-arc ion plating |
| Equipment size | 2500 × 3300 mm |
| Finish range | Gunmetal, gun black, rose gold, gold, matte |
| Pre-treatment | Brushing before coating where a brushed finish is required |
| Common industry sizes | 2500 × 3000 / 2500 × 3300 / 2500 × 3600 mm |
| Reported results | Yield up about 10 percentage points; on-time delivery up about 15% |
Figure: 2500 × 3300 mm large PVD vacuum coating system installed at the customer’s facility in Guangdong.
What Changed After the Line Went In
The biggest change was structural: coating now sits inside the customer’s own production chain, so surface treatment is something the company schedules rather than waits for.
The customer reports:
- Higher yield — about 10 percentage points better than with the previous outsourced model.
- Better delivery performance — roughly 15% improvement in on-time delivery, because coating can now be planned together with sink production.
- Faster development — with its own machine, the customer can run color development and process tests directly instead of queuing behind an outside supplier.
Installation and Customer Feedback
The customer reports the equipment running stably and gives positive feedback on both machine performance and service support.
In their own words, the project solved the three problems that had followed outsourced coating: quality control difficulty, unstable delivery schedules, and an incomplete production chain, while giving the company more autonomy in product development, color customization and market response.
Installation and trial-run photos are available from the customer for future case presentation.
Project Summary
A Guangdong stainless steel sink manufacturer previously relied on external processing for PVD coating, which limited its control over quality consistency, delivery timing and new product development.
By installing a 2500 × 3300 mm large PVD vacuum coating system, the customer established its own coating capability and moved to an integrated process that runs from sink manufacturing through surface finishing. Reported results: yield up about 10 percentage points, on-time delivery up about 15%, and faster new-finish development.
The wider point for the industry is that sink makers are shifting from outsourced surface treatment toward integrated, self-controlled, higher-quality production. For OEM suppliers facing factory audits, an in-house coating step is often less about cost and more about closing a gap in the manufacturing chain.
Related Equipment and Services
- our PVD coating equipment — compare multi-arc, magnetron sputtering and large-diameter models by chamber size and output per batch
- PVD coating services — send your sink or panel to our own coating plant and have it coated before you commit to a line
- another in-house sink coating project — how a Turkish manufacturer expanded its own multi-arc coating capacity
Get a PVD Coating Solution for Stainless Steel Sinks
If you make stainless steel sinks and want to bring color finishing in-house, FOXIN can configure a PVD system around your sink dimensions, target output, available floor space and finish requirements. Contact us to discuss your application.
FAQ
1. Why would a sink manufacturer bring PVD coating in-house?
The usual drivers are control and speed: consistent color across batches, delivery dates that follow your own schedule, and the ability to develop new finishes without waiting on an outside processor.
2. What equipment did this project use?
A 2500 × 3300 mm large PVD vacuum coating system based on multi-arc ion plating, used for decorative color coating of stainless steel sinks.
3. What finishes can a PVD system produce on stainless steel sinks?
The customer produces gunmetal, gun black, rose gold, gold and matte finishes. Brushed sinks are brushed before coating so the final decorative appearance comes out right.
4. How much did the project improve yield and delivery?
According to the customer, yield rose by about 10 percentage points and on-time delivery improved by roughly 15% compared with the previous outsourced model.
5. Do brushed stainless steel sinks need extra processing before coating?
Yes. For brushed products, the brushing step is completed before PVD coating rather than after it.
6. What sizes of PVD machine are common for stainless steel sinks?
The common large formats in the sink industry are 2500 × 3000 mm, 2500 × 3300 mm and 2500 × 3600 mm. The right size depends on the sink dimensions and the loading layout.