Mazak QTE-300MY
Key Specifications
X Travel
Y Travel
Z Travel
max turning diameter
max machining length
swing over bed
Overview
The Mazak QTE-300MY is a 10-inch chuck economy turning center with milling, C-axis, and Y-axis capability. It delivers the largest work envelope in the QTE economy series with off-center milling, targeting mid-size production parts that need done-in-one processing without the cost of the Quick Turn 350MY.
The main spindle delivers 22 kW (30 hp) at up to 4,000 RPM through an A2-8 spindle nose with 80 mm (3.15 in) bar capacity. The 12-station turret runs live tools at 6,000 RPM with 5.5 kW (7.4 hp), and the Y-axis provides 100 mm (+50/-50 mm) of off-center travel. Max turning diameter is 380 mm (14.96 in) with 550 mm (21.65 in) turning length.
Axis travels are 230 mm (X), 100 mm (Y), and 620 mm (Z) with rapids of 30 m/min on X and Z, and 10 m/min on Y. At approximately 5,600 kg (12,346 lb), the machine requires solid foundation prep. The combination of 10-inch chuck, 30 hp spindle, and Y-axis milling makes the QTE-300MY one of the most capable economy lathes in any manufacturer's lineup.
Running MAZATROL SmoothEz, the QTE-300MY handles Y-axis programming through conversational cycles. It competes with the Haas ST-30Y, Doosan Puma 3100MY, and DN Solutions Puma GT 3100M. New pricing runs $110,000-$165,000. For shops that also need a sub-spindle, look at the QTE-300MSY or QTE-300MY SG variants. Specs sourced from Mazak Corporation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 380 mm (14.96 in) |
| Max Machining Length | 22.6" |
| Swing Over Bed | 620 mm (24.4 in) |
| Bar Capacity | 80 mm (3.15 in) |
| X-Axis Travel | 230 mm (9.06 in) |
| Y-Axis Travel | 100 mm (±50 mm) |
| Z-Axis Travel | 620 mm (24.41 in) |
| Main Spindle Speed | 4,000 RPM |
| Main Spindle Power | 22 kW (30 hp) |
| Main Spindle Nose | A2-8 |
| Live Tool Speed | 6,000 RPM |
| Live Tool Power | 5.5 kW (7.4 hp) |
| Tool Stations | 12 |
| Turret Type | Live tooling turret with Y-axis |
| Chuck Size | 8″ |
| C Axis Resolution | 0.0001 degrees |
| Rapid Traverse X | 30 m/min (1,181 ipm) |
| Rapid Traverse Y | 10 m/min (394 ipm) |
| Rapid Traverse Z | 30 m/min (1,181 ipm) |
| CNC Control | MAZATROL SmoothEz |
| Machine Weight | 5,600 kg (12,346 lb) |
| Supported Models | Turret type |
| 100m 100my 100ms 100msy200m 200my 200ms 200msy | 12 Position Drum Turret |
| Max Machining Diameter | Φ13.4" |
Specifications sourced from mazak.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 10-inch chuck with 80 mm bar capacity and Y-axis covers a wide range of mid-size parts needing off-center features
- 22 kW (30 hp) spindle delivers serious torque for stock removal in steel, stainless, and cast iron
- 5.5 kW live tooling at 6,000 RPM provides genuine milling power for cross-drilling, hex milling, and keyway cutting
- Y-axis with 100 mm travel enables hex flats, eccentric holes, and D-cuts without a secondary VMC setup
- MAZATROL SmoothEz simplifies Y-axis programming through conversational cycles
- Economy pricing keeps 10-inch MY capability 20-30% below the Quick Turn 350MY
Limitations
- 4,000 RPM spindle speed limits surface speed on small-diameter turning operations
- SmoothEz control lacks some advanced SmoothG features including machining simulation
- 550 mm turning length limits shaft work compared to Quick Turn long-bed variants
- At 5,600 kg, the machine requires proper foundation work and rigging
Best For
Frequently Asked Questions
01
New QTE-300MY machines run $110,000-$165,000 depending on options. The Y-axis adds roughly $15,000-$25,000 over the base QTE-300M. This positions it against the Haas ST-30Y and Doosan Puma 3100MY in the competitive mid-size turning market.
02
The Quick Turn 350MY offers more spindle power, SmoothG control with advanced features, and premium build quality. The QTE-300MY costs 20-30% less and uses SmoothEz. For most production turning with moderate milling, the QTE delivers competitive cycle times and accuracy.
03
Yes. The 80 mm (3.15 in) bar capacity handles standard 3-inch bar stock directly. Combined with Y-axis milling, this means you can produce complete bar-fed parts with hex flats and cross-holes in a single setup.
04
The Haas ST-30Y typically costs $10,000-$15,000 less. The Mazak offers a built-in motor spindle, MAZATROL conversational programming, and higher live tool power at 5.5 kW vs the Haas's typical 3.7 kW. Both are proven 10-inch Y-axis platforms.
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