ISO 9001:2015 Certified Manufacturer
Solution
1 Stop
In-House Production
Expertise
38+
Years Experience
On-Time Delivery
99%
Reliable Delivery Rate

We run fully automated surface treatment systems at our Taiwan facility, covering powder coating, electro-coating, liquid coating, anodizing, and trivalent chromium treatments. So you avoid the delays and risks that come with coordinating with external finishing vendors.
Treatment selection depends on your application requirements. Powder coating provides durable finish options for pneumatic tools and general hardware. Electro coating delivers uniform coverage for complex geometries requiring complete corrosion protection. Liquid coating enables custom color matching for branded OEM products. Anodizing and trivalent chromium treatment offer corrosion resistance compliant with environmental regulations for marine and outdoor equipment.
We verify quality through salt spray testing to validate corrosion resistance performance before your components ship. We integrate surface treatment with CMM verification, and final inspection protocols. This ensures finished components meet both dimensional accuracy and surface finish specifications. Our single-source approach from die casting through surface treatment simplifies your procurement coordination whilst maintaining complete production traceability.
5 Options
Surface Treatment Options
Automated
Fully Automated Systems
Verified
Salt Spray Testing Verification

We use Keyence 3D Scanning Systems for dimensional verification and 3D CMMs for micron-level dimensional accuracy verification












At Joincast we keep every critical process in-house at Joincast, operating from a 9,900 m² facility to deliver dependable lead times and consistent quality. Across three production sites, we run die casting machines (135T–900T), CNC machining centers with automation, plus fully integrated surface treatment lines.
From small precision parts to castings up to 3 kg, we process ADC-12 / A383 and ADC-3 / A360 aluminum alloys in a 24-hour, single-supplier operation.


Mold Engineering

Die Casting

Polishing & Shot Blasting

CNC Machining

Surface Treatment

TPR Insert & Printing

Quality Inspection
This feature is currently under development. We are excited to launch this service shortly to better support your manufacturing inquiries.
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