The Doosan Puma SMX3100ST is a high-end multi-tasking CNC turning center designed for complex, high-precision machining in a single setup. Manufactured by Doosan Machine Tools (now DN Solutions), this model integrates turning, milling, drilling, and tapping with full 5-axis capability, making it ideal for aerospace, energy, and high-precision engineering industries.
The SMX3100ST features dual spindles, a B-axis milling head, and Y-axis travel, enabling simultaneous multi-axis machining. It offers a maximum turning diameter of approximately 660 mm and a turning length of around 1,540 mm. The machine includes a powerful main spindle (30 kW), a sub-spindle, and a high-speed milling spindle capable of 12,000 RPM.
Equipped with an 80-tool automatic tool changer and advanced CNC controls such as Fanuc 31i-B5, the machine delivers excellent precision, automation, and repeatability. Its rigid construction and thermal stability ensure consistent performance even in demanding applications.
Overall, the SMX3100ST is a premium mill-turn solution designed to reduce setups, improve accuracy, and maximize productivity for complex part manufacturing.
DOOSAN SMX3100STSPECIFICATIONS
DOOSAN SMX3100ST – AXIS
X1-Axis
Z1-Axis
X2-Axis
Z2-Axis
Y-Axis
B-Axis (Milling Head Rotation)
C-Axis (Main & Sub Spindle)
Dual Spindle (Main + Sub)
DOOSAN SMX3100ST – AXIS TRAVELS
X1-Axis Travel: ~695 mm
Z1-Axis Travel: ~1,585 mm
X2-Axis Travel: ~235 mm
Z2-Axis Travel: ~1,540 mm
Y-Axis Travel: ~300 mm (±150 mm)
B-Axis Rotation: ~240°
DOOSAN SMX3100ST – CAPACITY
Maximum Turning Diameter: ~660 mm
Maximum Turning Length: ~1,540 mm
Bar Capacity: ~102–103 mm
DOOSAN SMX3100ST – SPINDLE
Main Spindle Speed: ~3,000 RPM
Sub Spindle Speed: ~4,000 RPM
Milling Spindle Speed: ~12,000 RPM
Main Spindle Power: ~30 kW
Sub Spindle Power: ~26 kW
High Torque Dual Spindle System
DOOSAN SMX3100ST – CHUCK
Main Chuck Size: ~10–12 inch
Sub Chuck Size: ~10–12 inch
Hydraulic Chuck System
Dual Chuck for Complete Machining
DOOSAN SMX3100ST – TOOL SYSTEM
ATC Capacity: 80 Tools
Lower Turret Stations: 12
Tool Change Time: ~1.8 sec
Tool Type: BMT / Capto
Live Tooling for Milling & Drilling
DOOSAN SMX3100ST – FEEDRATES
Rapid Traverse (X/Z): ~48 m/min
Rapid Traverse (Y): ~36 m/min
Cutting Feed Rate: Programmable
High-Speed Servo Drive System
DOOSAN SMX3100ST – COOLANT & CHIP MANAGEMENT
Coolant System: High Pressure Coolant
Coolant Pressure: Up to ~10 bar (optional higher)
Chip Disposal: Automatic Chip Conveyor
Designed for Heavy Chip Removal
DOOSAN SMX3100ST – CONTROL SYSTEM
CNC Control: FANUC 31i-B5
Dual Path Control System
5-Axis Simultaneous Machining Capability
Advanced Collision Protection System
DOOSAN SMX3100ST – POWER & AIR REQUIREMENTS
Power Requirement: ~380–415V, 3 Phase
Connected Load: ~70–90 kVA
Air Requirement: ~5–6 bar
DOOSAN SMX3100ST – DIMENSIONS
Machine Footprint: ~5.7 m x 3.0 m
Machine Height: ~2.8 m
Machine Weight: ~18,500 kg
DOOSAN SMX3100ST – GENERAL INFORMATION
Machine Type: Multi-Tasking Turn-Mill Center
9-Axis Machining Capability
Dual Spindle with B-Axis Milling Head
Designed for Complex & Large Components
Single Setup Complete Machining
INDUSTRIES THAT USE DOOSAN SMX3100ST
Aerospace Industry
Automotive Industry
Energy & Power Sector
Oil & Gas Industry
Medical & Precision Engineering
TYPICAL PARTS DOOSAN SMX3100ST CAN PRODUCE
Aerospace Shafts
Turbine Components
Complex Multi-Feature Parts
Valve Bodies
Pump Components
High Precision Engineering Parts
WHY CHOOSE DOOSAN SMX3100ST
Complete Turn-Mill in One Setup
9-Axis Machining for Complex Parts
Dual Spindle for Front & Back Operations
High Tool Capacity (80 Tools)
Reduced Cycle Time & Handling
Ideal for High Precision & Complex Manufacturing
WHY BUY USED DOOSAN SMX3100ST
Purchasing a used Doosan Puma SMX3100ST is a strategic investment for manufacturers seeking advanced multi-tasking capability at a lower cost. One of the biggest advantages is cost savings—this machine is a high-end system, so used units offer substantial value compared to new purchases.
The SMX3100ST is built with a highly rigid structure and advanced engineering from Doosan Machine Tools, ensuring durability and long-term performance. Even machines with higher cutting hours can remain productive if properly maintained.
A major benefit is productivity. With dual spindles, B-axis milling head, and simultaneous machining capability, the machine can complete complex parts in one setup. This reduces handling time, minimizes errors, and improves throughput—especially valuable in high-mix, low-volume production.
Another advantage is automation. Features such as automatic tool changers, part handling systems, and high-speed milling significantly reduce manual intervention and cycle time. Used machines are also typically available immediately, avoiding long lead times.
For shops looking to consolidate operations and increase efficiency, a used SMX3100ST offers exceptional capability at a reduced investment.
HOW MUCH DOES A USED DOOSAN SMX3100STCOST?
The cost of a used Doosan Puma SMX3100ST varies significantly depending on year, condition, configuration, and cutting hours. Machines built before 2000 are not available, as this is a modern multi-tasking platform.
Machines from the 2000–2010 period are limited, but early multi-tasking machines with similar specifications typically range from $120,000 to $220,000 depending on condition and usage.
For machines built between 2010 and 2025, prices generally range from $200,000 to $450,000 or more. Newer models or lightly used machines (for example, 2018–2022 units) often command higher prices due to advanced features such as 5-axis capability, 80-tool ATC, and automation systems.
Cutting time is one of the most important pricing factors. Machines with low spindle and milling hours (under 5,000–8,000 hours) command premium prices due to reduced wear. High-hour machines are more affordable but may require maintenance—particularly in the B-axis milling head, spindle systems, and tool changer mechanisms.
Overall, the SMX3100ST remains a premium used machine, reflecting its advanced technology and high productivity potential.
