Protomatic has added the Tsugami TMA8-III, an eight-axis CNC machining center, as manufacturers seek to balance precision on complex parts with the economics of small-batch production. The integrated turn-mill platform is designed to reduce setup errors and improve consistency, while extending high-performance machining to lower-volume runs.
Integrated multi-axis capability
The TMA8-III combines turning and milling on a single platform with eight-axis interpolation. The design reduces the number of fixturing changes required for complex geometries, limiting setup errors and improving consistency across production runs.
Advanced computer-aided manufacturing, or CAM, programming and simulation are central to the system. Superposition technology allows turning and milling operations to be linked seamlessly, and software validates toolpaths before cutting to reduce collision risk. The approach lowers the threshold for high-performance machining in prototype and small-to-medium batch work.
Key specifications
The machine is configured with a high-capacity main spindle and a faster sub-spindle, alongside a milling head with a broad B-axis range. Its maximum machining envelope is intended for small and medium-sized precision components.
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Item
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Specification
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Main spindle
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8-inch chuck, 25 hp, 5,000 rpm
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Sub-spindle
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6-inch chuck, 10 hp, 7,000 rpm
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Milling head
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7.5 hp, 10,000 rpm, B-axis from -15° to 195°
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Maximum machining diameter
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8.66 in
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Maximum machining length
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22.8 in
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Bar capacity
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2.2 in
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The main spindle accepts an 8-inch chuck and delivers 25 hp at up to 5,000 rpm. The sub-spindle uses a 6-inch chuck and provides 10 hp at up to 7,000 rpm, while the milling head offers 7.5 hp, 10,000 rpm and a B-axis range from -15 degrees to 195 degrees.
Quality control and accuracy
To assess stability in production, Protomatic uses wireless ball bar testing. The test creates circular motion between the spindle and milling axis parallel to the machine bed, evaluating repeat positioning capability at micron-level precision.
The machine also incorporates a Renishaw contact probe system and glass optical scales. Combined with periodic ball bar calibration, these measurement components are intended to support dimensional and positional accuracy for precision parts.
Frequently Asked Questions
Is the Tsugami TMA8-III suitable for single-piece prototype work?
Yes. The machine was designed in part to address prototype and small-to-medium batch production needs. With CAM programming support, complex single parts can be completed in a single setup, avoiding the cost and precision loss associated with multiple setup changes.
How is safety assured in complex multi-axis machining?
Safety is supported primarily through integrated CAM software. Before machining begins, the system runs a full simulation to validate the manufacturing sequence and evaluate machine motion, providing program-level collision protection.
What inspection methods support high-precision parts?
The company uses a wireless ball bar system for periodic accuracy calibration and a Renishaw probe system for real-time dimensional compensation. Together, these measures support micron-level repeat positioning accuracy during production.
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