WFL M20 Millturn
Key Specifications
Tool Capacity
max turning diameter
max workpiece length
max workpiece weight
main spindle speed
c axis
Overview
The WFL M20 Millturn is the entry-level machine in WFL Millturn Technologies' lineup of complete-machining mill-turn centers, designed for the complete machining of shaft and chuck parts up to 520 mm in diameter in a single setup. WFL Millturn Technologies, based in Linz, Austria, pioneered the concept of combining full turning, milling, drilling, and deep-hole drilling capability on a single machine — enabling 'done in one' production of complex rotating components without re-fixturing across multiple machines.
The M20 handles workpieces up to 520 mm (20.5 in) in diameter and up to 1,000 mm (39.4 in) in length between centers (configurable to 1,500 mm), with a maximum workpiece weight of 300 kg (661 lb). The main turning spindle delivers up to 4,200 RPM with a C-axis for synchronized milling operations. The milling spindle provides up to 10,000 RPM through HSK-A63 tooling, with a B-axis that tilts the milling head from -10 to +190 degrees for 5-axis simultaneous machining of features on rotating parts.
The M20's B-axis milling capability is what distinguishes WFL's approach from conventional turning centers with live tools: the B-axis tilting milling spindle can machine complex cross-hole patterns, helical features, and compound-angle pockets that are physically impossible on a standard Y-axis live tool lathe. Deep-hole drilling to 6 x diameter can be performed with the main spindle providing chip clearance rotation.
The Siemens SINUMERIK 840D sl control, running WFL's proprietary CycleDesigner software for simplified complete-machining programming, manages all axes. Competing platforms include the Mazak INTEGREX e-400, DMG Mori NTX 1000, and INDEX G200. New M20 machines price between $800,000 and $1,300,000 depending on configuration.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 520 mm (20.5 in) |
| Max Workpiece Length | 1,000 mm (39.4 in) — 1,500 mm optional |
| Max Workpiece Weight | 300 kg (661 lb) |
| Main Spindle Speed | 4,200 RPM |
| C Axis | Main spindle synchronized |
| Milling Spindle Speed | 10,000 RPM |
| Milling Spindle Taper | HSK-A63 |
| B Axis Range | -10° to +190° |
| Deep Hole Drilling | Up to 6x diameter |
| Tool Capacity | 80 tools (turret + milling chain magazine) |
| CNC Control | Siemens SINUMERIK 840D sl |
| Software | WFL CycleDesigner |
| Tailstock | CNC-controlled programmable tailstock |
Strengths & Limitations
Strengths
- B-axis tilting milling spindle enables true 5-axis simultaneous machining on rotating parts — cross-holes, compound angles, helical features — impossible on a conventional turning center
- Complete machining in a single setup eliminates re-chucking errors between turning and milling operations, critical for complex shafts where concentricity and runout tolerances are tight
- WFL CycleDesigner software simplifies programming of complex mill-turn sequences by providing parametric cycles for common complete-machining operations, reducing programmer learning curve
- 520 mm turning diameter covers the majority of industrial shaft and chuck parts in automotive, hydraulics, and general precision engineering without overspecifying machine size
- Integrated deep-hole drilling capability (to 6x diameter) within the same setup eliminates a separate deep-hole drilling operation and dedicated machine
- WFL's 40+ years of complete machining experience means application support, tooling strategies, and process knowledge are genuinely deep and differentiated
Limitations
- Price of $800K-$1.3M is significantly higher than a comparable turning center plus VMC combination for shops where the integration benefit does not justify the premium
- 300 kg maximum workpiece weight limits the M20 to relatively light parts; heavier shafts require the M35 or larger Millturn models
- Complexity of programming simultaneous 5-axis mill-turn operations is significant even with CycleDesigner — highly skilled programming and setup staff are required
- 10,000 RPM milling spindle is adequate but not high-speed; fine finishing of complex surfaces on precision parts may require high-speed spindle options
- Maintenance complexity is higher than either a turning center or machining center alone, as both turning and milling systems must be maintained to their respective standards
Best For
Frequently Asked Questions
01
A turning center with live tools has fixed or Y-axis-repositioned milling heads that can drill and mill at set positions. The WFL M20's B-axis tilts the milling spindle from -10 to +190 degrees continuously, enabling compound-angle drilling, true 5-axis simultaneous machining of complex 3D features, and helical operations at arbitrary angles relative to the part centerline. This is a fundamentally different capability that enables parts with compound-angle cross-holes, off-axis milled features, and complex pocket geometries to be completed in one setup — work that a live-tool lathe cannot do without separate setups on a machining center.
02
CycleDesigner is WFL's proprietary programming environment integrated with the Siemens 840D sl control. It provides graphical, parametric cycles for common complete-machining operations: turning cycles, milling cycles, cross-hole drilling at compound angles, deep-hole drilling, and synchronized multi-spindle operations. Programmers define features in conversational terms rather than writing raw G-code for complex 5-axis mill-turn sequences, significantly reducing programming time and the potential for programming errors on complex part programs.
03
The M20 is ideal for parts up to 520 mm diameter with complex combinations of turning features (OD/ID turning, threading, grooving) and milling features (flat faces, pockets, compound-angle cross-holes, helical slots) that currently require multiple setups across a turning center and a machining center. Classic examples include automotive transmission shafts with milled keyways and cross-holes, aerospace actuator shafts with compound-angle hydraulic passages, hydraulic valve bodies with complex cross-drilling, and medical implant components.
04
The M35 steps up to 630 mm maximum turning diameter and handles longer and heavier workpieces than the M20's 520 mm / 300 kg limit. The M35 also offers higher spindle torque for heavier turning operations and typically includes a larger tool magazine. The M20 is the right choice for most shaft and chuck parts under 520 mm that need complete machining; the M35 serves the next size tier where diameter, length, or weight exceed M20 capacity.
05
Yes, the M20 can be configured with bar feeder automation for production of turned parts from bar stock. WFL supports integration with bar feeders from LNS, Iemca, and other suppliers. Bar capacity depends on the headstock bore size, which varies by configuration. For many complete-machining applications, bar-fed production enables extended unmanned operation of complex multi-operation programs.
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