Mazak MULTIPLEX W-300Y
Key Specifications
Max Spindle
Tool Capacity
Weight
Rapid Traverse
Spindle Power
Max Workpiece ⌀
Overview
The Mazak MULTIPLEX W-300Y is the Y-axis-equipped variant of Mazak's twin-spindle, twin-turret production turning center, built for shops that need milling and off-center drilling capability alongside high-volume turning. The W-300Y runs two symmetrical 10-inch chuck spindles, each delivering 18.5 kW (25 hp) at up to 5,000 RPM, with 150 mm (5.91 in) of Y-axis travel on each turret for true off-center milling operations.
The dual-spindle architecture lets operators rough on one spindle while finishing on the other, or run completely different parts simultaneously. Automatic workpiece transfer between spindles eliminates manual handling and keeps cycle times tight. Each turret carries 12 tool positions with live tooling driven at up to 6,000 RPM, giving the machine genuine mill-turn capability without requiring a separate machining center.
Max turning diameter is 430 mm (16.93 in) with 225 mm (8.86 in) of turning length, targeting short chucking work typical in automotive, hydraulic, and medical production. X-axis travel measures 195 mm (7.68 in) per turret with 560 mm (22.05 in) on Z. Bar capacity through the spindle handles stock up to 80 mm (3.15 in) diameter. Rapid traverse hits 30 m/min on both X and Z axes.
The MAZATROL SmoothG CNC handles the programming complexity of coordinating two spindles, two turrets, and Y-axis milling in a single setup. Built-in synchronization functions manage spindle-to-spindle workpiece transfer, superimposed machining, and balanced cutting where both turrets engage the same workpiece simultaneously.
At roughly 7,800 kg (17,196 lb), the W-300Y is compact enough to fit into existing production cells while delivering the output of two conventional lathes. The machine competes with the Nakamura-Tome WT-300, Okuma TWIN STAR LT3000, and DMG Mori NZX 2000. Pricing ranges from $280,000 to $380,000 depending on tooling and automation options.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 254 mm (10 in) per spindle |
| Max Workpiece Diameter | 430 mm (16.93 in) |
| Max Turning Length | 225 mm (8.86 in) |
| Max Spindle Speed | 5,000 RPM |
| Spindle Motor Power | 18.5 kW (25 hp) per spindle |
| Spindle Count | 2 symmetrical spindles |
| Turret Count | 2 turrets with live tooling |
| Tool Capacity | 12 positions per turret (24 total) |
| Live Tool Speed | 6,000 RPM |
| Y Axis Travel | 150 mm (5.91 in) per turret |
| X Axis Travel | 195 mm (7.68 in) |
| Z Axis Travel | 560 mm (22.05 in) |
| Rapid Traverse Rate | 30 m/min X, 30 m/min Z |
| Bar Capacity | 80 mm (3.15 in) |
| Machine Weight | 7,800 kg (17,196 lb) |
| CNC Control | MAZATROL SmoothG |
Specifications sourced from mazakusa.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Twin-spindle, twin-turret architecture effectively doubles throughput compared to single-spindle lathes, cutting cost-per-part on high-volume runs
- 150 mm Y-axis travel on each turret enables genuine off-center milling, cross-drilling, and contouring without a secondary machining operation
- Automatic workpiece transfer between spindles eliminates manual part handling and enables complete front-and-back machining in one cycle
- 24 total live tool positions across two turrets handle complex mill-turn parts that would otherwise require multiple setups
- Each spindle runs independently at 18.5 kW and 5,000 RPM, allowing simultaneous but different operations on both sides
- MAZATROL SmoothG synchronization simplifies programming of dual-spindle coordinated and superimposed machining operations
Limitations
- Starting at $280K, the investment requires high-volume production to justify over two separate single-spindle lathes
- 225 mm turning length limits the machine to short chucking work — shaft-type parts need a different platform
- Programming dual-spindle synchronized operations with Y-axis milling demands experienced operators and programmers
- If one spindle requires service, the entire machine may need to come offline, affecting production scheduling
Best For
Frequently Asked Questions
01
New MULTIPLEX W-300Y pricing typically falls between $280,000 and $380,000 depending on live tooling configuration, automation options, and bar feeder integration. The Y-axis variants command a premium over the base W-300 due to the added milling capability. Used W-300Y machines from 2018-2022 appear on the secondary market in the $150,000-$220,000 range.
02
The Y suffix indicates 150 mm of Y-axis travel on each turret, enabling off-center milling, cross-drilling, and contouring operations. The base W-300 is turning-only with no Y-axis capability. If your parts have any milling features like flats, cross-holes, or hex shapes, the Y-axis variant eliminates a secondary operation on a machining center.
03
Both are excellent twin-spindle production machines in the 10-inch chuck class. The Nakamura-Tome WT-300 is known for tighter thermal stability and slightly better surface finish on precision work. The Mazak W-300Y offers MAZATROL conversational programming, which many shops find faster for setup, and integrates well with Mazak's automation ecosystem including gantry loaders.
04
Yes. The 80 mm bar capacity accommodates standard bar feeders for continuous unattended production. Pair it with a Mazak GL-100 gantry loader for chuck-type work automation. The MAZATROL SmoothG control includes built-in bar feeder management and part counting functions.
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