4th Axis Trunnions
Our CNC-machined 4th axis trunnions are built for shops that need rigidity, repeatability, and confidence at full spindle load. Designed and manufactured in the USA, these trunnions are optimized for high-mix and production machining on vertical and horizontal CNC mills.
Each trunnion is engineered with tool and jig or blanachard ground steel to minimize deflection under aggressive cutting conditions. Whether you’re machining aluminum, steel, or hardened materials, our trunnions deliver consistent positioning and long-term accuracy.
Designed for Real Production Environments
Unlike hobby-grade or lightweight trunnions, these units are designed specifically for industrial CNC workflows:
Rigid construction for heavy cuts and high torque
Tight positional repeatability for multi-op machining
Compatible with common rotary tables and 4th-axis drives
Designed for fast setup, probing, and repeatable fixturing
Built to Integrate With Your Fixtures
Our 4th axis trunnions are ideal for:
Tombstones and modular fixturing systems
Hydraulic or manual clamping fixtures
Dedicated production fixtures
Prototype-to-production scalability
They are commonly used in aerospace, automotive, defense, robotics, and industrial manufacturing where part access, accuracy, and cycle time matter.
Why Choose Our 4th Axis Trunnions?
CNC-machined in-house by experienced fixture builders
Designed by machinists who run production every day
Optimized for rigidity, accuracy, and long service life
Custom options available for size, mounting, and interface
If you’re looking for a production-ready 4th axis trunnion that won’t become the weak link in your process, this is a tool you can build repeat work around.
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