Hurco TMX8MYSi
Key Specifications
X Travel
Y Travel
Z Travel
Spindle Taper
Tool Capacity
Weight
Overview
The Hurco TMX8MYSi is the top of Hurco's 8-inch chuck mill-turn lineup, adding a sub-spindle to the TMX8MYi platform for true done-in-one machining. With the main spindle, sub-spindle, Y-axis, C-axis, and BMT65 live tooling, this machine can complete both sides of a part without operator intervention — turn, mill, and drill the front side, transfer to the sub-spindle, and finish the back side, all in a single cycle.
The main spindle delivers 27.8 kW (37.3 hp) with 239 Nm (176.3 ft-lbs) of torque at up to 4,500 RPM. The sub-spindle provides 11.2 kW (15 hp) at up to 6,000 RPM — enough power for finishing operations and light turning on the back side. The sub-spindle accepts parts up to approximately 165 mm (6.5 in) in diameter through its 6-inch chuck and travels along the Z2 axis to meet the main spindle for part transfer.
The BMT65 turret carries 12 stations of live tooling at up to 5,000 RPM with 6.4 kW (8.5 hp). The Y-axis provides 55 mm (+/- 27.5 mm) of off-center travel for milling pockets, hex features, and off-center holes on both the main and sub-spindle sides. Maximum turning diameter is 336 mm (13.2 in) on the main spindle with a turning length of 530 mm (20.9 in).
Travels are 286 mm (11.3 in) in X, 560 mm (22 in) in Z (main), and 55 mm in Y. The sub-spindle Z2 axis provides the travel needed for part pickup and back-side machining. Machine weight is approximately 5,200 kg (11,464 lb) with the sub-spindle adding mass and rigidity over the TMX8MYi.
The WinMax control manages the complexity of main spindle, sub-spindle, and live tooling coordination in a single program. This is where WinMax's conversational approach provides the biggest advantage — programming sub-spindle operations that would require significant CAM expertise on other platforms can be set up conversationally. The TMX8MYSi competes with the Haas DS-30SSY, Doosan Lynx 2100LSYB, and Mazak QT-200MSY.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 8 in (203 mm) main / 6 in (152 mm) sub |
| Bar Capacity | 51 mm (2.0 in) |
| Max Turning Diameter | 10.9 in (277 mm) |
| Max Turning Length | 20.7 in (527 mm) |
| Swing Over Bed | 560 mm (22 in) |
| X-Axis Travel | 286 mm (11.3 in) |
| Z-Axis Travel | 560 mm (22 in) |
| Y-Axis Travel | 55 mm (2.17 in) / +/-27.5 mm |
| Main Spindle Speed | 4,500 RPM |
| Main Spindle Power | 27.8 kW (37.3 hp) |
| Main Spindle Torque | 239 Nm (176.3 ft-lbf) @ 1,000 RPM |
| Sub Spindle Speed | 6,000 RPM |
| Sub Spindle Power | 20.1 hp (15 kw) |
| Live Tool Speed | 5,000 RPM |
| Live Tool Power | 6.4 kW (8.5 hp) @ 2,190 RPM |
| Turret Stations | 12 (BMT65) |
| Axes | X, Z, Y, Z2, C1, C2 |
| Rapid Traverse Rate | 24 m/min (945 ipm) |
| CNC Control | Hurco WinMax |
| Machine Weight | 5,200 kg (11,464 lb) |
| Travels Capacitydistance Between Centers | 28.5 in (724.5 mm) |
| Swing Over Bed Diameter | 20 in (508 mm) |
| Swing Over Cross Slide Diameter | 20 in (508 mm) |
| Max Bar Capacity | 2.6 in (65 mm) |
| X Z Y W Axis Travel | 11.4 x 22 x 4.4 x 25.2 in (285 x 560 x 110 x 640 mm) |
| Spindlemax Spindle Speed | 4500 rpm |
| Max Torque High Gear | 176.3 ft. lbs @ 1000 rpm (239 Nm @ 1000 rpm) |
| Spindle Motor Power | 33.5 hp (25 kW) |
| Spindle Taper | A2-6 |
| Chuck Diameter | 8 in (203 mm) |
| Turrettool Type | BMT65 / DIN 1809 (VDI 40 - DIN 1089) |
| Tool Capacity | 12 Stations |
| Tool Shank | 1 x 1 in (25 x 25 mm) |
| Max Boring Bar Diameter | 1.5 in (40 mm) |
| Turret Index Time Adjacent | 1.3 seconds |
| Turret Index Time Furthest | 1.7 seconds |
| Sub Spindlesub Spindle Max Speed | 6000 rpm |
| Sub Spindle Max Torque | 75.4 ft. lbs @1390 rpm (102.2 @ 1390 rpm) |
| Live Spindlelive Spindle Max Speed | 4000 rpm |
| Live Tooling Max Torque | 20.4 ft. lbs @2190 rpm (27.6 Nm @2190 rpm) |
| Live Tooling Spindle Power | 8.5 hp (6.4 kw) |
| Feedratesrapid Traverse X Z Y W Axis | 945, 1181, 472, 1181 in/min (24, 30, 12, 30 m/min) |
| Sizemax Operating Floor Space | 209.9 x 137.2 in (5532 x 3485 mm) |
| Machine Height | 100.5 in (2552 mm) |
| Machine Weight | 16500 lbs (7500 kg) |
| Parts Catcher Dimensions | 5.7 x 3.8 x 3.2 in (146 x 96 x 80 mm) |
Specifications sourced from hurco.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Sub-spindle enables true done-in-one machining — complete front and back side operations without operator intervention
- 37.3 hp main spindle with 239 Nm torque handles production-grade turning on the front side without compromise
- Y-axis works with both main and sub-spindle for milling operations on both sides of the part
- WinMax conversational control simplifies sub-spindle programming that would require advanced CAM on other platforms
- BMT65 turret provides superior rigidity for live milling operations on both spindles
- 6,000 RPM sub-spindle provides enough speed for finishing and light turning on the back side
Limitations
- Sub-spindle replaces the tailstock, eliminating shaft support for long parts between centers
- 6-inch sub-spindle chuck limits back-side machining to smaller parts — not all parts that fit the 8-inch main chuck can transfer
- 55 mm Y-axis travel is modest for complex milling on both sides of the part
- 12-station turret gets tight quickly when serving both main and sub-spindle turning plus live tooling operations
- Significantly higher price than the TMX8MYi — the sub-spindle adds $45,000-$60,000 to the machine cost
Best For
Frequently Asked Questions
01
A new Hurco TMX8MYSi typically sells between $175,000 and $235,000 depending on options. The sub-spindle adds approximately $45,000-$60,000 over the TMX8MYi base price. Used examples trade between $95,000 and $150,000.
02
The sub-spindle travels along the Z2 axis to meet the main spindle. Both spindles synchronize speed, the sub-spindle chuck closes on the exposed end of the part, the main chuck opens, and the sub-spindle retracts with the part. The process is fully automated and programmed through WinMax.
03
No. The sub-spindle occupies the tailstock position. For long shaft work requiring center support, the TMX8MYi with tailstock is the appropriate machine. The TMX8MYSi is designed for chuck work and bar-fed parts that can be completed with sub-spindle back-machining.
04
Both are sub-spindle Y-axis mill-turn machines. The Hurco delivers more main spindle power (37.3 hp vs ~20 hp) and WinMax conversational programming. The Haas costs less and has broader dealer coverage. For shops that value programming speed and spindle power, the Hurco justifies its premium.
05
Parts that need machining on both ends — features like back-face turning, back-side cross-holes, counter-bores, chamfers, threads, and back-side milling. Without a sub-spindle, these parts require a second operation with manual refixturing, which adds time and introduces tolerance stack-up between setups.
Videos
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