Mazak SYNCREX 20/8
Key Specifications
Tool Capacity
max bar capacity
main spindle speed
main spindle power
sub spindle speed
sub spindle power
Overview
The Mazak SYNCREX 20/8 is the standard-configuration model in the 20 mm SYNCREX range, offering 8 axes of simultaneous CNC control for versatile Swiss-type production. With 20 mm (0.787 in) maximum bar capacity, this machine addresses the high-demand size class for precision turned parts in medical devices, electronics, automotive sensors, and hydraulic components that fall between the smallest 12 mm parts and the mid-range 25 mm work.
The main spindle delivers 5.5 kW (7.5 hp) at 8,000 RPM through a collet system accepting bar stock up to 20 mm diameter. The sub-spindle provides 3.7 kW (5 hp) at 8,000 RPM for back-working operations and part pickup. The guide bushing supports the bar at the cutting zone for Swiss-type rigidity, maintaining precision on parts with high length-to-diameter ratios. It is removable for non-guide-bushing mode on shorter parts.
The 8-axis configuration adds a cross-working axis over the 7-axis model, enabling more complex simultaneous operations including off-center milling, hexagonal machining, and cross-drilling while maintaining main spindle turning. Live tooling stations powered by the 8 axes provide milling, cross-drilling, and tapping capability. Typical configurations include 20-24 tool positions combining fixed turning tools, rotary live tools, and back-working stations.
The MAZATROL SmoothG CNC control brings Mazak's conversational programming to Swiss-type machining, reducing setup time and lowering the programming skill barrier. The machine weighs approximately 2,900 kg (6,393 lb) with a footprint of roughly 2.7 x 1.3 meters. Competitors include the Citizen A20-VII, Star SR-20J II, Tornos SwissDECO 26, and Tsugami B0206. New machines price between $200,000 and $310,000.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 20 mm (0.787 in) |
| Main Spindle Speed | 8,000 RPM |
| Main Spindle Power | 5.5 kW (7.5 hp) |
| Sub Spindle Speed | 8,000 RPM |
| Sub Spindle Power | 3.7 kW (5 hp) |
| Number Of Axes | 8 axes |
| Guide Bushing | Yes (removable) |
| Tool Stations | 20-24 positions (fixed and rotary) |
| Live Tooling | Yes |
| Max Machining Length | 230 mm (9.06 in) |
| Machine Weight | 2,900 kg (6,393 lb) |
| CNC Control | MAZATROL SmoothG CNC |
| Max Machining Diameter | Φ1.5" |
| Max Spindle Speed | 8000 min-1(rpm) |
| Tool Capacity | 39 |
Specifications sourced from mazak.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 20 mm bar capacity covers a broad range of precision parts including dental components, electronic housings, and hydraulic fittings that exceed the 12 mm SYNCREX limit
- 8 axes of simultaneous control with live tooling enable complex geometries including hexagonal profiles, cross-holes, and off-center milling in a single cycle
- MAZATROL SmoothG conversational programming reduces setup time by 30-50% compared to traditional Swiss G-code programming on competing Citizen and Star platforms
- Removable guide bushing provides flexibility to run Swiss mode for long slender parts or chucker mode for shorter parts with better material utilization
- 5.5 kW main spindle provides solid cutting performance in stainless steel and titanium at 20 mm bar diameters
- Mazak's global service network and parts availability provide operational confidence for production environments running multiple shifts
Limitations
- Newer entrant to Swiss-type market means limited SYNCREX track record compared to Citizen, Star, and Tornos with decades of proven Swiss production history
- 8,000 RPM main spindle speed is lower than some competitors offering 10,000-12,000 RPM in this bar range, reducing surface speed on small-diameter aluminum and brass work
- Tool capacity of 20-24 positions is adequate but below high-end competitors like the Citizen A20 which can accommodate 30+ tools for complex multi-feature parts
- Limited aftermarket tooling ecosystem compared to established Swiss brands with more third-party toolholder and specialized accessory options
Best For
Frequently Asked Questions
01
Base SYNCREX 20/8 configurations start around $200,000. Production-ready setups with bar feeder, parts catcher, high-pressure coolant, and full live tooling complement run $260,000-$310,000. As a newer product line, used SYNCREX machines are limited on the secondary market.
02
The 20/8 adds an eighth axis of control, providing additional cross-working capability for more complex simultaneous operations. The 20/8 accommodates 20-24 tool positions versus 16-20 on the 20/7, and enables off-center milling and hexagonal machining that the 7-axis model cannot efficiently produce. For standard Swiss turning, the 20/7 suffices; for complex multi-feature parts, the 20/8 is the better choice.
03
The Citizen A20-VII is the dominant machine in 20 mm Swiss with a massive global installed base. It offers higher spindle speeds (10,000+ RPM), more tool positions, and Citizen's proven Cincom programming system. The SYNCREX 20/8 counters with MAZATROL conversational programming, which dramatically simplifies setup for shops without dedicated Swiss programmers. For dedicated high-volume Swiss production, the Citizen has the edge; for mixed shops wanting Swiss capability with easier programming, the SYNCREX is compelling.
04
Yes. The 5.5 kW main spindle provides adequate power for Swiss-type titanium cutting at 20 mm diameter. Use high-pressure through-tool coolant (70+ bar), carbide or PCD tooling, and conservative feeds. Swiss-type rigidity from the guide bushing is advantageous for titanium, preventing the deflection and chatter that plague conventional lathe setups on long slender titanium parts.
