Mazak QRX-50MSY SG
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
max machining diameter
max machining length
bar capacity main
Overview
The Mazak QRX-50MSY SG is the latest-generation, fully-loaded variant of the QRX-50 twin-turret turning center platform. The SG (Second Generation) designation marks the current production model with updated machine design, improved chip flow management, and the latest MAZATROL SmoothG CNC features. It combines every capability option: Milling (M), Sub-spindle (S), and Y-axis (Y) on the compact 6-inch chuck twin-turret architecture.
Two independent 12-position drum turrets with BMT45 tool holders run simultaneously, delivering the balance-cutting and parallel-machining capability that makes twin-turret architectures 30-50% faster than single-turret machines on production work. Each turret provides 24-station tool capacity. The Y-axis on both turrets enables off-center milling, drilling, and tapping for features like flats, D-cuts, keyways, and eccentric holes that pure C-axis interpolation cannot produce.
The second spindle automatically receives parts from the main spindle for back-face machining, enabling true bar-to-finished-part production without operator intervention. Bar capacity is 52 mm (2.05 in) on both main and sub spindles. Maximum machining diameter is 245 mm (9.65 in) with 900 mm (35.43 in) of machining length, suitable for a wide range of production components.
The SG generation brings improved thermal stability, optimized chip evacuation paths for high-volume production, and SmoothG control enhancements including better dual-turret simulation and collision avoidance. The machine runs unattended with a magazine bar feeder and parts catcher, producing complete finished parts from bar stock around the clock.
The QRX-50MSY SG competes with the Doosan Puma TT1300SYY, Nakamura-Tome WY-100, and DMG Mori NZX 1500/800SY2. New machines price between $360,000 and $460,000 depending on tooling and automation options.
Full Specifications
| Parameter | Value |
|---|---|
| Max Machining Diameter | Φ245 mm |
| Max Machining Length | 552 mm |
| Bar Capacity Main | 52 mm (2.05 in) |
| Bar Capacity Sub | 52 mm (2.05 in) |
| Chuck Size | 8″ |
| Spindle Bore | Φ61 mm |
| Turret Type | Dual 12-position drum turrets (24 stations each) |
| Tool Mounting | BMT45 standard |
| Milling Capability | Y-axis milling on both turrets |
| Y Axis | Yes |
| Second Spindle | Yes (sub-spindle for back-working) |
| Max Spindle Speed | 5,000 RPM (estimated) |
| Spindle Motor Power | 18.5 kW (25 hp) estimated |
| Rapid Traverse Rate | 30 m/min (X/Z) |
| Turret Count | 2 |
| Simultaneous Machining | Yes, balance cutting and simultaneous OD/ID |
| Generation | SG (Second Generation) |
| CNC Control | MAZATROL SmoothG CNC |
| Machine Weight | 9,500 kg (20,944 lb) approx. |
| Machine Model | Main spindle |
| Qrx 50 Sg Qrx 50my Sg | Φ52 mm |
| Qrx 50ms Sg Qrx 50msy Sg | Φ52 mm |
Specifications sourced from mazak.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Latest SG generation with improved thermal stability, chip management, and SmoothG control enhancements delivers higher sustained production accuracy than earlier QRX-50 models
- Complete part processing: simultaneous twin-turret cutting + Y-axis milling + sub-spindle back-working produces finished parts from bar stock in one unattended cycle
- BMT45 tool holders on both turrets provide the rigidity required for accurate Y-axis milling and cross-drilling at production speeds
- 48-tool total capacity handles complex multi-feature parts without manual tool changes, supporting diverse part families in contract manufacturing environments
- Automatic collision checking in SmoothG control reduces the crash risk inherent in dual-turret, dual-spindle simultaneous operations
- 52 mm bar capacity on both spindles matches standard production bar stock sizes for automotive, medical, hydraulic, and precision engineering components
Limitations
- At $360K-$460K, the SG is the most expensive QRX-50 variant — requires consistently high-value, high-volume complex parts to justify over simpler configurations
- 6-inch chuck limits maximum part diameter compared to the 8-inch models (QRX-50 SG, QRX-50MY SG), restricting the machine to smaller-diameter work
- Programming complexity is high: dual turrets, dual spindles, and Y-axis milling synchronization requires trained operators and careful cycle simulation
- More moving components mean higher long-term maintenance costs — two turrets, two spindles, Y-axis drives, and bar feeder interface all require scheduled service
Best For
Frequently Asked Questions
01
The SG (Second Generation) is the current production model with updated machine design, improved thermal stability, better chip evacuation, and the latest SmoothG control software. The core MSY capabilities are the same: dual turrets, Y-axis milling, and sub-spindle. The SG delivers improved sustained accuracy and production reliability.
02
New QRX-50MSY SG machines range from $360,000 to $460,000 depending on tooling configuration and automation options. A magazine bar feeder and parts catcher add $30,000-$50,000. Full production cells with chip conveyor, coolant system, and monitoring can approach $500,000.
03
With a 12-foot magazine bar feeder and parts catcher, the QRX-50MSY SG can run unattended for 6-12 hours depending on part length and complexity. Short parts from 1-inch bar stock can produce hundreds of pieces per bar load. Tool life management in SmoothG automatically compensates for wear and monitors tool breakage during lights-out runs.
04
Different tools for different jobs. The INTEGREX i-100S has a B-axis milling spindle for complex angular features and 5-axis contouring — better for aerospace-style complex geometry. The QRX-50MSY SG uses twin turrets running two tools simultaneously — better for high-volume production where cycle time reduction per part drives ROI. Most shops choose the QRX for throughput and the INTEGREX for complexity.
Videos
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