MAZAK QTE-300 SG
USED MAZAK QTE-300 SG
The Mazak QTE-300 SG is a high-performance CNC turning center designed for medium to large-sized workpieces, offering a balance of speed, rigidity, and multi-tasking capability. It belongs to Mazak’s QTE series, which is known for compact yet powerful machines equipped with built-in motor spindles that eliminate belts and gears, improving torque delivery, reducing vibration, and enhancing surface finish quality. The QTE-300 SG specifically features a 10-inch chuck capacity, making it suitable for larger components compared to the QTE-200 series.
This machine is engineered for high-precision production with a maximum machining diameter of around 390 mm and long workpiece handling capability depending on bed length configuration. The integrated spindle motor delivers high torque even at low RPMs, which is critical for heavy-duty cutting operations in steel and alloy materials. With spindle speeds up to approximately 4000 rpm, it is optimized for both roughing and finishing operations.
The QTE-300 SG supports Mazak’s MAZATROL SmoothEz control system, which enables conversational programming and reduces setup time significantly. Operators can quickly generate programs using intuitive touchscreen inputs, making it ideal for both experienced machinists and shops transitioning from conventional CNC systems.
Turret flexibility is another strength, with an 8-position standard turret and optional 12-position configuration for increased tooling capacity. The machine is also automation-ready, supporting bar feeders, gantry loaders, and robotic systems for lights-out manufacturing.
In industrial environments, the QTE-300 SG is widely used in automotive, general engineering, and subcontract machining due to its ability to handle varied batch sizes while maintaining consistent accuracy. Its rigid construction ensures stable cutting even during long production cycles, making it a reliable choice for both job shops and production facilities seeking efficiency and repeatability.
MAZAK QTE-300 SG SPECIFICATIONS
| MAZAK QTE-300 SG – AXIS |
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| Number of Axes: 2 (X, Z) |
| X-Axis: Cross slide movement |
| Z-Axis: Longitudinal movement |
| C-Axis: Optional indexing (model dependent) |
| Live Tooling: Not standard (available in M variants) |
| MAZAK QTE-300 SG – AXIS TRAVELS |
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| X-Axis Travel: Approx. 250 mm |
| Z-Axis Travel: Approx. 1,100 mm |
| Rapid Traverse (X/Z): Up to 30 m/min |
| Feed System: CNC controlled precision feed |
| Long bed design for extended parts |
| MAZAK QTE-300 SG – CAPACITY |
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| Maximum Turning Diameter: Approx. 390 mm |
| Maximum Turning Length: Approx. 1,063 mm |
| Chuck Size: 10 inch |
| Maximum Bar Capacity: Approx. 80 mm |
| Swing Over Bed: Approx. 700 mm |
| MAZAK QTE-300 SG – SPINDLE |
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| Main Spindle Speed: Up to 4,000 RPM |
| Spindle Nose: A2-8 |
| Spindle Bore: Approx. 90 mm |
| Spindle Motor Power: Approx. 22–26 kW |
| Built-in Motor Spindle: Yes (high torque, low vibration) |
| MAZAK QTE-300 SG – TABLE |
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| Table Type: Slant Bed |
| Bed Angle: Approx. 30° |
| Guideways: Box guideways |
| Construction: Heavy-duty rigid frame |
| Suitable for long shaft components |
| MAZAK QTE-300 SG – TOOL TURRET |
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| Number of Stations: 8 (12 optional) |
| Turret Type: Drum turret |
| Tool Change: Fast indexing |
| Tool Size: Standard turning tools |
| Live Tooling: Not available (base model) |
| MAZAK QTE-300 SG – FEEDRATES |
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| Rapid Traverse (X/Z): Approx. 30 m/min |
| Cutting Feed Rate: Programmable |
| Feed Control: CNC precision |
| High stability for long cuts |
| Smooth acceleration/deceleration |
| MAZAK QTE-300 SG – COOLANT & CHIP MANAGEMENT |
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| Coolant System: Flood coolant |
| Coolant Tank Capacity: Approx. 250 L |
| Chip Conveyor: Optional |
| Chip Handling: Suitable for heavy chip loads |
| Filtration: Standard filtration |
| MAZAK QTE-300 SG – CONTROL SYSTEM |
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| CNC Control: Mazatrol SmoothEz |
| Programming: Conversational + G-code |
| Interface: Touchscreen |
| Automation Ready: Yes |
| Networking: Ethernet capable |
| MAZAK QTE-300 SG – POWER & AIR REQUIREMENTS |
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| Power Requirement: Approx. 35–40 kVA |
| Voltage: 3 Phase |
| Air Pressure: Approx. 5–6 bar |
| Air Consumption: Moderate |
| Energy Efficient spindle design |
| MAZAK QTE-300 SG – DIMENSIONS |
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| Machine Length: Approx. 3,500 mm |
| Machine Width: Approx. 2,000 mm |
| Machine Height: Approx. 2,000 mm |
| Machine Weight: Approx. 6,000–7,000 kg |
| Floor Space: Medium footprint |
| MAZAK QTE-300 SG – GENERAL INFORMATION |
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| Machine Type: CNC Turning Center |
| Manufacturer: Mazak |
| Series: Quick Turn Smart (QTE SG) |
| Design: Compact but long-bed configuration |
| Application: High-precision turning |
| Build: High rigidity with built-in spindle |
| INDUSTRIES THAT USE MAZAK QTE-300 SG |
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| Automotive Industry |
| Oil & Gas |
| Heavy Equipment Manufacturing |
| Aerospace |
| General Engineering |
| Power Generation |
| TYPICAL PARTS MAZAK QTE-300 SG CAN PRODUCE |
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| Long Shafts |
| Pipes and Tubular Components |
| Flanges |
| Bushings |
| Rollers |
| Heavy-duty cylindrical parts |
| WHY CHOOSE MAZAK QTE-300 SG |
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| Large turning capacity for long parts |
| High rigidity for heavy cutting |
| Built-in spindle improves accuracy |
| Reliable Mazatrol control system |
| Compact footprint for its capacity |
| Ideal for shaft and tubular machining |
WHY BUY USED MAZAK QTE-300 SG
Purchasing a used Mazak QTE-300 SG is a cost-effective strategy for manufacturers who need heavy-duty turning capability without the high capital investment of a new machine. One of the strongest reasons to consider a used unit is that the machine is built with a robust structural design and a direct-drive spindle system, which significantly reduces mechanical wear compared to belt-driven lathes. This means even older machines can maintain strong performance if they have been properly maintained.
When evaluating used QTE-300 SG machines, cutting hours become a critical factor. Machines with low usage hours (typically under 5,000–10,000 cutting hours) generally retain near-original spindle accuracy and are ideal for precision machining environments. Medium-hour machines (10,000–25,000 hours) are commonly found in job shops and still offer strong productivity for general engineering work. High-hour machines (25,000+ hours) may require inspection of spindle bearings, turret indexing accuracy, and guideway wear but can still be highly usable for less critical applications or rough machining operations.
Another major advantage is return on investment. Since depreciation occurs heavily in the first few years of machine ownership, buyers can acquire advanced multi-tasking capabilities—such as live tooling and optional Y-axis configurations—at a fraction of the original cost. This allows companies to increase production capacity without locking capital into new equipment purchases.
Additionally, Mazak machines are known for long service life and strong global support, meaning spare parts and technical assistance remain available even for older models. Many used QTE-300 SG machines also come from well-managed production environments, making them reliable even after years of operation.
Overall, buying used provides access to industrial-grade machining performance, reduced financial risk, and faster ROI while still delivering the rigidity and precision required for demanding production environments.
HOW MUCH DOES A USED MAZAK QTE-300 SG COST?
The cost of a used Mazak QTE-300 SG varies significantly depending on manufacturing year, configuration, cutting hours, and overall machine condition. Generally, pricing is strongly influenced by spindle usage and maintenance history, as well as whether the machine includes options such as Y-axis, sub-spindle, or automation integration.
For newer machines manufactured between 2015 and 2025, prices typically range from approximately $110,000 to $180,000. These units often have lower cutting hours and may include modern upgrades such as Mazatrol SmoothEz controls, automation readiness, and improved tooling configurations. Machines at the higher end of this range usually have very low wear and are closer to near-new condition.
For mid-generation machines built between 2005 and 2015, the typical price range is around $60,000 to $110,000. These machines are commonly found in job shops and production environments and may have moderate cutting hours between 10,000 and 25,000 hours. While they may show some wear, they still offer strong reliability if properly maintained, especially in spindle and turret systems.
Older machines manufactured before 2005 are generally priced between $25,000 and $60,000 depending on condition and usage history. These units often have higher cutting hours, sometimes exceeding 25,000–40,000 hours, and may require maintenance such as spindle refurbishment, ball screw inspection, or control upgrades. However, they can still be valuable for rough machining or non-critical production tasks.
Cutting time plays a major role in determining value. Lower-hour machines retain better accuracy, faster cycle stability, and higher resale value. High-hour machines, while cheaper, may experience reduced precision and longer cycle inconsistencies under heavy loads. Additionally, machines used in continuous production environments tend to wear differently than lightly used job shop machines.
Overall, the QTE-300 SG remains a strong investment in the used market due to its rigid construction, long service life, and strong machining capability even after years of operation.
