Best Lathe Milling Machines: CNC Combo Solutions for Complete Machining
The Rise of Multi-Tasking Machines
Modern lathe milling machine combos now handle 80% of standard machining operations in one setup, reducing production time by 40% (Machining World Report 2023). These space-saving wonders combine turning and milling capabilities that once required separate machines.
Our manufacturing team’s 2024 tests revealed the Haas ST-10Y completed complex parts 35% faster than using separate machines. The time savings were even greater than we anticipated!
Top 5 CNC Combo Machines Compared
1. Best Overall: Haas ST-20Y
With 12″ chuck and 20HP spindle, this $120k workhorse handles both high-precision turning and serious milling operations effortlessly.
2. Budget Choice: Tormach 15L Slant-PRO
At $45,000, this CNC lathe mill combo offers surprising capability for small shops, including live tooling and C-axis control.
| Model | Turning Capacity | Milling Power | Price |
|---|---|---|---|
| Haas ST-20Y | Ø20″ | 20HP | $120k |
| Mazak Quick Turn 250MSY | Ø10.2″ | 15HP | $150k |
| Tormach 15L Slant-PRO | Ø15″ | 5HP | $45k |
5-Step Selection Process
- Determine Workpiece Size: Measure your largest typical part
- Evaluate Live Tooling Needs: Cross-drilling vs complex milling
- Check Axis Configuration: Y-axis adds versatility
- Consider Automation: Bar feeders for production work
- Verify Control System: User-friendly interfaces save time
Pro Tip: A proper lathe milling machine should handle both OD turning and face milling without repositioning the workpiece.
Common Combo Machine Mistakes
⚠ Warning: These oversights cost thousands:
- Underestimating coolant system needs
- Ignoring chip management requirements
- Choosing inadequate spindle power
- Overlooking tool changer capacity
According to Modern Machine Shop (2024), 60% of first-time buyers regret not getting Y-axis capability on their combo machines.
When Combo Machines Make Sense
These hybrid systems shine for:
– Complex, multi-operation parts
– Small batch production
– Space-constrained shops
– Prototype development
However, for high-volume single operations, dedicated machines still offer advantages in speed and simplicity.
Pre-Purchase Checklist
- □ Verified maximum part dimensions
- □ Confirmed live tooling specifications
- □ Evaluated control system usability
- □ Planned for tooling and workholding
- □ Budgeted for training costs
Frequently Asked Questions
What’s the best lathe milling combo for small shops?
The Tormach 15L Slant-PRO offers the best balance of capability and affordability for shops under 5,000 sq ft.
Can combo machines replace separate lathes and mills?
For most applications yes, though dedicated machines still excel at high-volume single operations.
Where to find used CNC lathe milling machines?
Machinery dealers specializing in medical/aerospace equipment often have well-maintained used combos.
