The Doosan Puma SMX3100ST is a high-end multi-tasking CNC turning and milling center designed for machining large, complex components in a single setup. As part of Doosan’s advanced SMX series, it integrates dual spindles, a full B-axis milling head, and a lower turret, enabling simultaneous machining operations and complete part processing without secondary setups. Built on a rigid slant-bed structure with high-stability guideways and thermal compensation systems, the machine ensures excellent vibration control, accuracy, and long-term reliability even under heavy cutting conditions.
The machine offers a maximum turning diameter of approximately 660 mm and a turning length of around 1,540 mm, making it suitable for medium-to-large complex components across industries such as aerospace, energy, and precision engineering. It features dual spindles with speeds up to 3,000–4,000 RPM and a high-speed milling spindle reaching up to 12,000 RPM, enabling advanced 5-axis machining, contouring, and drilling operations.
With up to 9 axes, a ±120° B-axis, Y-axis travel of around 300 mm, and a large tool magazine capacity of up to 80 tools, the SMX3100ST is engineered for highly complex geometries. Its ability to perform front- and back-side machining in one cycle significantly reduces setup time and improves productivity, making it a powerful solution for advanced manufacturing environments.
DOOSAN PUMA SMX3100STSPECIFICATIONS
DOOSAN PUMA SMX3100ST – AXIS
Multi-Axis CNC Turning & Milling Center
X1 / Z1 Axis (Upper)
X2 / Z2 Axis (Lower)
Y Axis
C Axis (Main & Sub Spindle)
B Axis (Milling Head Rotation)
Sub-Spindle
Lower Turret with Live Tooling
9-Axis Configuration
DOOSAN PUMA SMX3100ST – AXIS TRAVELS
X1-Axis Travel: Approx. 695 mm
Z1-Axis Travel: Approx. 1,585 mm
X2-Axis Travel: Approx. 235 mm
Z2-Axis Travel: Approx. 1,540 mm
Y-Axis Travel: Approx. 300 mm (±150 mm)
B-Axis Rotation: ±120° (240° total)
C-Axis: 360° Indexing
DOOSAN PUMA SMX3100ST – CAPACITY
Maximum Turning Diameter: Approx. 660 mm
Maximum Turning Length: Approx. 1,540 mm
Maximum Swing Over Bed: Approx. 900 mm
Bar Capacity: Approx. 102 mm
DOOSAN PUMA SMX3100ST – SPINDLE
Main Spindle Speed: Up to 3,000 RPM
Sub-Spindle Speed: Up to 4,000 RPM
Main Spindle Power: Approx. 30 kW
Sub-Spindle Power: Approx. 26 kW
Milling Spindle Speed: Up to 12,000 RPM
High Torque Built-in Spindles
Dual Spindle Synchronization
DOOSAN PUMA SMX3100ST – TABLE
Heavy Duty Slant Bed Design
One-Piece Rigid Casting Structure
High Stability and Vibration Dampening
Designed for Complex Multi-Tasking
DOOSAN PUMA SMX3100ST – TOOL TURRET / MILLING HEAD
B-Axis Milling Head
Automatic Tool Changer (ATC): Up to 80 Tools
Lower Turret: 12 Stations
Live Tooling Capability
Milling Spindle for Multi-Surface Machining
Fast Tool Change (Approx. 1.8 sec)
DOOSAN PUMA SMX3100ST – FEEDRATES
Rapid Traverse (X1): Approx. 48 m/min
Rapid Traverse (Z1): Approx. 48 m/min
Rapid Traverse (Y): Approx. 36 m/min
High Precision Servo Feed System
DOOSAN PUMA SMX3100ST – COOLANT & CHIP MANAGEMENT
High Capacity Coolant System
Through-Spindle Coolant
Multi-Stage Coolant Pumps
Chip Conveyor System
Optional High Pressure Coolant
DOOSAN PUMA SMX3100ST – CONTROL SYSTEM
FANUC 31i-B5 CNC Control
Dual Path 5-Axis Simultaneous Machining
Advanced Collision Protection System
User Friendly Interface
DOOSAN PUMA SMX3100ST – POWER & AIR REQUIREMENTS
Power Requirement: Approx. 100 – 120 kVA
Air Supply Required for ATC & Automation
Stable Power Recommended
DOOSAN PUMA SMX3100ST – DIMENSIONS
Machine Length: Approx. 5,790 mm
Machine Width: Approx. 3,021 mm
Machine Height: Approx. 2,820 mm
Machine Weight: Approx. 18,500 kg
DOOSAN PUMA SMX3100ST – GENERAL INFORMATION
High-End 9-Axis Multi-Tasking CNC Machine
Combines Turning, Milling, and Drilling
Twin Spindle with Lower Turret
Complete Machining in Single Setup
High Precision and Productivity
INDUSTRIES THAT USE DOOSAN PUMA SMX3100ST
Aerospace
Oil & Gas Industry
Automotive
Energy Sector
Precision Engineering
TYPICAL PARTS DOOSAN PUMA SMX3100ST CAN PRODUCE
Complex Shafts
Aerospace Components
Turbine Parts
Valve Bodies
Multi-Face Machined Components
WHY CHOOSE DOOSAN PUMA SMX3100ST
Complete Multi-Tasking Solution
Reduces Setup Time and Operations
High Rigidity and Stability
Dual Spindle + Dual Path Efficiency
Ideal for Complex and High-Precision Parts
Increases Productivity and Throughput
WHY BUY USED DOOSAN PUMA SMX3100ST
Buying a used Doosan Puma SMX3100ST is a strategic investment for manufacturers seeking advanced multi-tasking capability at a reduced cost. One of the biggest advantages is its ability to combine turning, milling, and secondary operations in a single setup, reducing handling time, improving accuracy, and increasing throughput. This is especially valuable for complex, high-precision components where multiple setups would otherwise be required.
Another major benefit is simultaneous machining capability. The combination of dual spindles, a B-axis milling head, and a lower turret allows parallel operations, significantly reducing cycle times and improving productivity. This makes the SMX3100ST ideal for high-mix, low-volume production as well as continuous manufacturing environments.
Cost savings are also substantial. Multi-tasking machines in this category represent a major capital investment when new, and purchasing a used unit allows businesses to access advanced features such as 5-axis machining, large tool capacity, and automation readiness at a fraction of the original price. Immediate availability is another advantage, as new machines often come with long lead times.
Cutting hours are a critical factor when evaluating a used SMX3100ST. Machines with lower spindle and B-axis usage typically retain better accuracy and require less maintenance. However, even higher-hour machines can still perform reliably due to their heavy-duty construction, provided they have been properly maintained. Many used machines also include tooling packages, chip conveyors, and automation systems, which add significant value.
HOW MUCH DOES A USED DOOSAN PUMA SMX3100STCOST?
The cost of a used Doosan Puma SMX3100ST depends on factors such as year of manufacture, configuration, condition, and cutting hours. Machines manufactured before 2000 are not applicable, as the SMX series is a modern multi-tasking platform.
Machines from approximately 2012 to 2016 typically range from $250,000 to $400,000. These units often have moderate cutting hours and standard configurations, making them a cost-effective entry point into advanced multi-tasking machining.
Machines produced between 2016 and 2020 generally fall within the $400,000 to $700,000 range. These machines often include upgraded CNC systems, improved spindle performance, and enhanced automation features, offering strong value for high-precision applications.
Newer machines from 2020 to 2025 can range from $700,000 to $1,100,000 or more, depending on configuration, tooling, and overall condition. Typical market benchmarks suggest pricing for this model family starting around $350,000 for base configurations, increasing significantly with options and lower cutting hours. Machines with lower cutting hours command premium pricing due to better accuracy retention and reduced maintenance requirements, while higher-hour machines are more affordable but may require servicing. Overall, cutting time, machine configuration, and included automation or tooling systems remain the most critical factors influencing the final price.