ISO 9001:2015 Certified Manufacturer

In-House
Surface Treatment Systems

Our fully automated surface treatment systems eliminate third-party supplier finishing delays. We offer a range of treatment solutions to provide corrosion protection and aesthetic finishes for your components.

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. We carry out all finishing processes in-house 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 creates hard, wear-resistant surfaces for high-friction applications. Trivalent chromium treatment offers 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.

ISO-Certified Quality & Advanced Inspection Component Inspection

JoinCast strictly adheres to the ISO 9001:2015 quality management system. We have invested in a dedicated 10 person QC team for stringent quality control from incoming material to right through to final shipment.

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

Keyence 3D Scanning
Mitutoyo 3D CMM Verification
Dedicated 10 Member QC Team

Marine Components

Corrosion-resistant boat hardware, engine housings, and offshore equipment

Outboard Lower Unit Housing

Alloy: ADC-3 / A383
Weight Range: ~1.4 kg
Finish: Chromate conversion

Pneumatic Tools

Precision housings and tool components

Pneumatic Tool Housing

Alloy: ADC-12 / A360
Weight Range: 0.3 – 0.9 kg
Finish: Powder coat, paint, or anodized metal look

Heat Sink & Controller

ADC-12 / A360 housings and heat sinks for LED, power electronics, and controllers.

Die-Cast Heat Sink

Alloy: ADC-12 / A360
Weight Range: ~0.4 kg
Finish: Anodizing / Powder Coating

Lighting

Heat-dissipating LED and commercial lighting housings

LED Heat Sink Housings

Alloy: ADC-12 / A360
Weight Range: 0.2 – 0.9 kg
Finish: Powder coat or anodizing

Medical Equipment

Medical components for equipment and machinery

Medical Device Housing

Alloy: ADC-12 / A360
Weight Range: 0.4 – 1.1 kg

Custom Applications

Tailored solutions for your specialized requirements

From Design to Delivery: Full-Service Die Casting

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 / A360 and ADC-3 / A383 aluminum alloys in a 24-hour, single-supplier operation.