
ISO Certified Manufacturer

We manufacture pneumatic tool components using ADC-12 / A383 aluminum alloy optimized for high-impact applications and sustained torque loads. For over three decades, we have supplied tool housings, valve bodies, gear assemblies, and trigger mechanisms to the largest global brands and pneumatic tool manufacturers serving professional contractors and industrial operations. Our component production includes nailers, staplers, impact wrenches, spray guns, grinders, and other components distributed across North American, European, and Japanese markets.
Our vertically integrated factory allows us to eliminate coordination delays, a common issue in multi-vendor pneumatic tool production. Your pneumatic tool components move from our automated die casting machines through polishing and surface treatment to our CNC machining centers without leaving our factory. This allows us to monitor your parts throughout the production process to maintain the consistent dimensional accuracy critical for pneumatic tool components.
In-House
Surface Finishing
ADC-12 / A383
for Pneumatic Tools
Vertically Integrated
Production Facilities
We use Keyence 3D Scanning Systems for dimensional verification and 3D CMMs for micron-level dimensional accuracy verification

If your question is not listed here, please contact us and we will be glad to assist you.
We use ADC-12 / A383 aluminum alloy as standard for pneumatic tool applications. This alloy is well-suited to the demands of cost control, which are the defining performance requirements for professional-grade pneumatic tools. It also offers good castability, which helps us maintain the tight dimensional tolerances your components require. Our engineers can advise on alloy selection if your application has specific requirements.
We produce a broad range of components, including tool housings, valve bodies, gear assemblies, and trigger mechanisms. Our experience covers nailers, staplers, impact wrenches, spray guns, grinders, and more. For over three decades we have supplied the largest global pneumatic tool brands, serving professional contractors and industrial operations across North American, European, and Japanese markets.
Our vertically integrated production means your parts move from die casting through polishing and surface treatment to CNC machining without leaving our facility so we can monitor quality at every stage rather than relying on handoffs between vendors. We use Keyence 3D scanning and Mitutoyo CMM equipment for micron-level dimensional verification, backed by a dedicated 10-person QC team.
Yes. TPR insert molding is one of our in-house capabilities, and it’s particularly relevant for pneumatic tool housings where ergonomics and vibration absorption matter. We bond TPR directly to the aluminum die-cast housing to your specifications. This means you don’t need a separate supplier for the overmolding stage, which simplifies your supply chain and gives us direct control over the quality of the finished assembly.
We handle everything in-house across our 9,900 m² facility. From mold engineering and die casting through CNC machining, polishing, surface treatment, and TPR insert molding, your components move through a single, vertically integrated production operation. This eliminates the coordination delays that are a common problem in multi-vendor pneumatic tool component production and gives you one point of contact for lead times and quality accountability.
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Joincast では、すべての重要工程を社内に集約し、9,900㎡の工場から安定した納期と一貫した品質を提供しています。3つの生産拠点において、135T~900Tのダイカストマシン、自動化対応の CNC加工センター、さらに統合された表面処理ラインを運用しています。
小型精密部品から最大 3kg のアルミダイカスト部品まで、ADC-12 / A383 および ADC-3 / A360 アルミ合金を使用し、24時間体制の一貫生産体制で対応しています。

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