Hurco TM8MYi
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Weight
Overview
The Hurco TM8MYi is the standard-duty 8-inch chuck mill-turn machine with Y-axis capability, positioned between the C-axis-only TM8Mi and the performance-class TMX8MYi. It provides Y-axis, C-axis, and live tooling in a lighter-duty TM-series package for shops that need off-center milling capability without the TMX platform's premium price tag.
The main spindle delivers 13.4 kW (18 hp) at up to 4,500 RPM through an A2-6 spindle nose with 51 mm (2.0 in) bar capacity. While the 18 hp spindle is less powerful than the TMX8MYi's 37.3 hp, it's adequate for most turning and mill-turn work on parts within the 8-inch chuck envelope. Maximum turning diameter is 356 mm (14 in) with a turning length of 455 mm (17.9 in) and swing over bed of 533 mm (21 in).
The Y-axis provides 50 mm (+/- 25 mm) of off-center travel for milling pockets, hex features, keyways, and off-center holes. The 12-station turret accepts live tools at up to 5,000 RPM for combined turning and milling operations. Travels are 200 mm (7.9 in) in X, 455 mm (17.9 in) in Z, and 50 mm in Y.
Construction follows the TM-series standard: Meehanite cast iron, 30-degree slant bed, linear guideways, and Yaskawa servo drives. Machine weight is approximately 3,800 kg (8,378 lb). The WinMax conversational control integrates turning, C-axis, and Y-axis milling operations in a single programming workflow.
The TM8MYi fills an important niche in Hurco's lineup — shops that need the Y-axis for off-center milling but don't require the TMX8MYi's heavier construction and higher spindle power. For shops doing lighter mill-turn work on smaller parts, it saves $30,000-$50,000 over the TMX version while delivering the same Y-axis milling versatility. It competes with the Haas ST-10Y, Doosan Lynx 2100Y, and Mazak QT-200MY.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 8 in (203 mm) |
| Bar Capacity | 51 mm (2.0 in) |
| Max Turning Diameter | 12.6 in (320 mm) |
| Max Turning Length | 14.77 in (375 mm) |
| Swing Over Bed | 533 mm (21 in) |
| X-Axis Travel | 200 mm (7.9 in) |
| Z-Axis Travel | 455 mm (17.9 in) |
| Y-Axis Travel | 50 mm (1.97 in) / +/-25 mm |
| Max Spindle Speed | 4,500 RPM |
| Spindle Motor Power | 30.3 hp peak (22.6 kW) |
| Spindle Nose | A2-6 |
| Live Tool Speed | 5,000 RPM |
| Turret Stations | 12 (live tooling capable) |
| Axes | X, Z, Y, C |
| Rapid Traverse Rate | 24 m/min (945 ipm) |
| Tailstock | Standard |
| CNC Control | Hurco WinMax |
| Machine Weight | 3,800 kg (8,378 lb) |
| Travels Capacitydistance Between Centers | 23.5 in (597 mm) |
| Swing Over Bed Diameter | 19.29 in (490 mm) |
| Swing Over Cross Slide Diameter | 19.29 in (490 mm) |
| X Z Axis Travel | 9.1, 21.65 in (232, 550 mm) |
| Y Axis Travel | +/- 2.17 in (+/- 55 mm) |
| Spindle Bore Diameter | 3.07 in (78 mm) |
| Chuck Diameter | 8 in (210 mm) |
| Spindlemax Spindle Speed | 4000 rpm |
| Max Torque High Gear | 194.7 ft-lbs @ 817 rpm (263.6 Nm @ 824 rpm) |
| Spindle Taper | A2-6 |
| Turrettool Capacity | 12 Stations |
| Tool Type | BMT55 (DIN1809) |
| Feedratesrapid Traverse Xz Y Axis | 1,181, 1,181, 472 in/min (30, 30, 12 m/min) |
| Live Spindlelive Tooling Spindle Speed | 5000 rpm Servo-driven |
| Live Tooling Spindle Power | 16 hp (11.9 kW) |
| Live Tooling Spindle Max Torque | 27.9 ft-lbs (37.8 Nm) |
| Sizemachine Height | 100.89 in (2,563 mm) |
| Max Operating Floor Space | 182.53 x 127.74 in (4,636 x 3,245 mm) |
| Machine Weight | 9,899 lb (4,490 kg) |
Specifications sourced from hurco.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Y-axis enables off-center milling — pockets, hex features, keyways — at a lower price than the TMX8MYi performance platform
- WinMax conversational control integrates turning and Y-axis milling programming without CAM software dependency
- 4,500 RPM spindle provides good surface footage for aluminum and general steel turning
- 5,000 RPM live tools deliver genuine milling capability for secondary features on turned parts
- 51 mm bar capacity supports automated bar-fed production of mill-turn parts
- Lower entry price than TMX-series machines makes Y-axis mill-turn accessible to smaller shops
Limitations
- 18 hp spindle power is limited for aggressive roughing in stainless and harder materials compared to the TMX8MYi's 37.3 hp
- 50 mm Y-axis travel is modest — limited for deeper off-center milling features
- 455 mm turning length is shorter than TMX-series machines offering 530+ mm
- Lighter TM-series construction provides less vibration damping than the heavier TMX platform during heavy cuts
- 12-station turret fills up quickly with combined turning and live milling tools on complex parts
Best For
Frequently Asked Questions
01
The TMX8MYi delivers 37.3 hp vs 18 hp, uses a BMT65 turret (vs standard VDI-style), has 55 mm Y-travel (vs 50 mm), and weighs 4,125 kg (vs 3,800 kg). The TMX is the performance platform; the TM is the standard-duty option. For lighter mill-turn work on smaller parts, the TM8MYi saves $30,000-$50,000.
02
A new Hurco TM8MYi typically sells between $95,000 and $135,000 depending on options. This is approximately $35,000-$40,000 less than the TMX8MYi while delivering the same Y-axis and C-axis milling capability at lower spindle power.
03
Yes, at moderate feeds and depths. The 18 hp spindle handles stainless turning and light milling but will be slower on heavy roughing compared to the TMX8MYi's 37.3 hp. For shops doing primarily stainless mill-turn, the TMX version is worth the investment.
04
The Haas ST-10Y is typically less expensive with better dealer coverage. The Hurco TM8MYi's advantage is WinMax conversational programming for mill-turn operations, which saves significant time on job changeovers. Spindle specifications are comparable between the two machines.
05
The 50 mm Y-axis enables milling pockets with flat bottoms and straight walls, hex features, keyways, off-center drilling, and D-flats. It positions the live tool off-center from the spindle axis, enabling features that are impossible with C-axis-only machines.
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