Mazak QT-PRIMOS 150
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Weight
Rapid Traverse
Spindle Power
Overview
The Mazak QT-PRIMOS 150 is the largest model in the entry-level QT-PRIMOS turning center family, designated as the QT-PRIMOS 150 SG. It steps up from the PRIMOS 100 with a larger chuck, more turning capacity, and increased spindle power while maintaining the compact, simple 2-axis lathe philosophy. The PRIMOS 150 bridges the gap between Mazak's smallest entry-level machines and the QT-Ez value line.
The QT-PRIMOS 150 runs a 203 mm (8 in) chuck with a maximum turning diameter of 250 mm (9.84 in) and a maximum turning length of 280 mm (11.02 in). The built-in motor spindle delivers 15 kW (20 hp) at up to 5,000 RPM through an A2-6 spindle nose. Bar capacity is 52 mm (2.05 in), accommodating 2-inch bar stock for production bar feeding.
The 8-position drum turret indexes in 0.2 seconds, matching the speed of the smaller PRIMOS models. Tool shanks step up to 25 mm x 25 mm, matching industry standard sizing for better tool availability and rigidity. The fast indexing and compact footprint keep the PRIMOS 150 efficient for production turning.
The QT-PRIMOS 150 offers MAZATROL SmoothEz or the simplified MAZAK FZ control on a touchscreen interface. The larger work envelope compared to the PRIMOS 100 makes the SmoothEz conversational programming option more valuable, as operators are likely to program a wider variety of parts at the machine.
The QT-PRIMOS 150 competes with the Haas ST-15, Doosan Lynx 2100, and smaller Quick Turn models. It sits at the top of the PRIMOS line and just below the QT-Ez in capability. For shops needing a step up from the PRIMOS 100's 6-inch capacity without the cost and complexity of the QT-Ez or Quick Turn families, the PRIMOS 150 fills the niche precisely. Specs sourced from Mazak Corporation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 6″ |
| Max Turning Diameter | 250 mm (9.84 in) |
| Max Turning Length | 280 mm (11.02 in) |
| Max Spindle Speed | 5,000 RPM |
| Spindle Motor Power | 15 kW (20 hp) |
| Spindle Taper | A2-6 |
| Bar Capacity | 52 mm (2.05 in) |
| Tool Capacity | 8-position drum turret |
| Tool Shank | 25 mm x 25 mm |
| Turret Index Time | 0.2 seconds |
| Boring Bar Diameter | 25 mm / 32 mm (selectable) |
| X Axis Travel | 155 mm (6.10 in) |
| Z Axis Travel | 310 mm (12.20 in) |
| Rapid Traverse Rate | 24 m/min X, 30 m/min Z |
| Machine Weight | 2,800 kg (6,173 lb) |
| CNC Control | MAZATROL SmoothEz / MAZAK FZ |
| Od Turning Face Tool | 20 mm × 20 mm |
| Boring Bar | Φ20 mm / Φ25 mm (selectable) |
| Indexing Time | 0.2 sec |
| Qt Primos 150 Sg | 1850 mm |
| Mazak Fz | QT-PRIMOS 50 SG, 100 SG |
| Max Machining Diameter | Φ7.09″ |
| Max Machining Length | 7.87″ |
Specifications sourced from mazak.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 8-inch chuck handles larger parts than the PRIMOS 100 while maintaining compact design
- 0.2-second turret indexing keeps cycle times competitive for production work
- 25 mm tool shanks match industry standard for better tool availability and rigidity
- 52 mm bar capacity handles 2-inch bar stock for production feeding
- 15 kW spindle provides meaningful power increase over the 11 kW PRIMOS 100
- Built-in motor spindle and Mazak quality at entry-level pricing
Limitations
- 8-position turret limits tool capacity compared to 12-position turrets on QT-Ez
- No milling, Y-axis, or sub-spindle; strictly 2-axis turning
- 280 mm max turning length is short for shaft or longer component work
- 5,000 RPM max spindle speed is lower than the PRIMOS 100's 6,000 RPM
Best For
Frequently Asked Questions
01
New pricing runs $55,000-$80,000 depending on control choice and options. It represents a modest step up from the PRIMOS 100 pricing.
02
The QT-Ez 8 offers a 12-position turret, more turning length, and optional milling configurations. The PRIMOS 150 is more compact and less expensive for pure 2-axis turning.
03
No. The PRIMOS line is strictly 2-axis turning. For live tooling, look at the QTE-100M, QT-Ez 8M, or Quick Turn 100MY.
04
Yes. Mazak offers the GL03 gantry loader option for automated part loading and unloading, enabling lights-out production.
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