Tsugami Mill-Turn / Multi-Tasking Machines

Tsugami TMA8J

$400,000 - $600,000 Updated 2026-03-19

Key Specifications

Max Spindle

20,000 min⁻¹

Max Turn Length

580 mm (22.83 in)

type

Multi-tasking turn/mill center

main spindle size

8 inch main / 6 inch sub

max turning diameter

220 mm (8.66 in)

main spindle speed

10,000 RPM

Overview

The Tsugami TMA8J is a productive-type complex machine that integrates turning center and machining center functionality into a single platform. Built around an 8-inch main spindle and 6-inch sub-spindle, it handles workpieces up to 220mm turning diameter and 580mm turning length -- a sweet spot for mid-size components in aerospace, medical, and general precision manufacturing.

The TMA8J's main spindle runs to 10,000 RPM with an 11/5.5 kW motor, and the 20,000 RPM tool spindle handles the milling side of the equation. The B-axis provides indexed positioning for approaching the workpiece from multiple angles, while the standard Y-axis opens up off-center milling, drilling, and tapping. With the sub-spindle standard, you're getting full 6-face machining capability without transferring parts between machines.

Tsugami's crossed right-angle slide construction is a key design feature. Instead of stacking slides on top of each other (which compounds errors and reduces rigidity), the crossed layout gives the TMA8J a more rigid and thermally stable foundation. This translates directly to better surface finishes and tighter tolerances during sustained production runs.

The X-axis linear scale comes standard, ensuring that the most critical positioning axis maintains accuracy over time regardless of thermal growth or ballscrew wear. Axis travels of 430 x 130 x 400mm (X/Y/Z) provide a workable milling envelope for flats, pockets, cross-holes, and contoured features. For shops that need to consolidate turning and milling operations without stepping up to the higher-end TMA8F, the TMA8J offers an excellent balance of capability and value.

Full Specifications

Parameter	Value
Type	Multi-tasking turn/mill center
Main Spindle Size	8 inch main / 6 inch sub
Max Turning Diameter	220 mm (8.66 in)
Max Turning Length	580 mm (22.83 in)
Main Spindle Speed	10,000 RPM
Main Spindle Motor	11/5.5 kW (14.8/7.4 HP)
Tool Spindle Speed	20,000 RPM
Axis Travel Xyz	430 x 130 x 400 mm
B Axis	Yes (indexing)
Y Axis	Standard
Sub Spindle	Standard (6-face machining)
Linear Scale	Standard on X-axis
CNC Control	FANUC
Max Spindle Speed	20,000 min⁻¹

Specifications sourced from tsugami.co.jp — verified 2026-03-28

Strengths & Limitations

Strengths

10,000 RPM main spindle provides higher surface speeds for turning than the TMA8F, benefiting smaller-diameter features
20,000 RPM tool spindle delivers machining center-grade milling performance on turned parts
Standard sub-spindle enables complete 6-face machining in a single setup, eliminating secondary operations
Crossed right-angle slide construction maximizes rigidity and thermal stability for consistent accuracy
Standard Y-axis and B-axis indexing cover a wide range of off-center and angular machining needs
X-axis linear scale standard ensures long-term positional accuracy without manual compensation

Limitations

B-axis is indexing rather than full simultaneous, limiting complex contoured surface capability compared to the TMA8F
130mm Y-axis travel is relatively narrow for complex off-center milling work
Main spindle motor at 11 kW is modest for heavy turning in tough materials at larger diameters
Smaller tool magazine capacity compared to the TMA8F may limit complex part programs

Best For

General precision manufacturers needing combined turning and milling without the premium cost of full 5-axis mill-turn platforms Aerospace shops producing fittings, brackets, and hardware requiring turned features plus cross-holes and flats Medical device manufacturers making instrument bodies, implant housings, and connector components with 6-face features Contract shops consolidating two-machine processes into a single mill-turn setup for cost reduction Automotive manufacturers producing sensor housings, valve bodies, and actuator components at medium volumes

Frequently Asked Questions

01 What's the difference between the TMA8J and TMA8F?

The TMA8F is the higher-spec model with a direct-drive B-axis for true 5-axis simultaneous machining, 60-tool CAPTO C4 magazine, and 1,000 PSI through-spindle coolant. The TMA8J uses an indexing B-axis (not simultaneous), has a smaller tool magazine, but offers a higher main spindle speed at 10,000 RPM. The TMA8J costs less and is the better choice when you need indexed milling positions rather than continuous 5-axis contouring.

02 Can the TMA8J do 5-axis simultaneous machining?

No. The TMA8J's B-axis is an indexing type, meaning it positions at fixed angles rather than interpolating continuously with other axes. For 5-axis simultaneous contouring, you'd need the TMA8F or TMA8H. The TMA8J handles indexed 3+2 axis positioning, which covers the majority of mill-turn applications like angled holes, flats at compound angles, and multi-face machining.

03 What does 'crossed right-angle slide construction' mean?

In a crossed right-angle design, the X and Z slides are arranged at 90 degrees to each other in a cross pattern, rather than stacking one on top of the other. This gives each axis its own rigid foundation connected directly to the machine bed. The result is less deflection under cutting forces, better thermal stability, and improved accuracy compared to stacked-slide designs.

04 What size parts does the TMA8J handle best?

The TMA8J's sweet spot is parts from 20mm to about 180mm diameter and up to 400mm long that need both turning and milling features. Typical applications include connector housings, valve bodies, instrument components, and small structural parts. The 8-inch chuck accommodates chucked workpieces, and bar stock up to approximately 65mm can be fed through the spindle bore.

05 How does the TMA8J compare to a Mazak INTEGREX i-200?

Both are productive mill-turn centers targeting similar part sizes. The Mazak INTEGREX has a larger installed base in North America and benefits from Mazak's SmoothX control with extensive mill-turn support. The Tsugami TMA8J counters with its crossed right-angle slide design for rigidity and typically prices lower. Both are excellent machines -- dealer proximity and service support often drive the final decision.