Used MAZAK QTE-300 SG CNC Machine For Sale - Pre-Owned

MAZAK QTE-300 SG

MAKE: MAZAK
MODEL: QTE-300 SG
TYPE: Lathe
YEAR: 2010
SKU: 110653
DEALER: Used CNC Exchange
COUNTRY: USA

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
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
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
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
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
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
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
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
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
CNC Control: Mazatrol SmoothEz
Programming: Conversational + G-code
Interface: Touchscreen
Automation Ready: Yes
Networking: Ethernet capable
MAZAK QTE-300 SG – POWER & AIR REQUIREMENTS
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
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
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
Automotive Industry
Oil & Gas
Heavy Equipment Manufacturing
Aerospace
General Engineering
Power Generation
TYPICAL PARTS MAZAK QTE-300 SG CAN PRODUCE
Long Shafts
Pipes and Tubular Components
Flanges
Bushings
Rollers
Heavy-duty cylindrical parts
WHY CHOOSE MAZAK QTE-300 SG
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.