Milltronics SL10-II
Image: milltronics.com, Milltronics
Key Specifications
Max Spindle
Spindle Power
Max Turn Length
Accuracy
Repeatability
x axis travel
How much does the Milltronics SL10-II cost?
Price estimate
We do not have a price for the Milltronics SL10-II that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Milltronics SL10-II is a 10 in chuck turning center built on an A2-8 spindle nose, with 260 lb-ft (352 Nm) of spindle torque and a turning envelope of 17.7 in (450 mm) in diameter by 29.9 in (759 mm) in length. It trades speed for torque: the spindle tops out at 3,000 rpm.
Set beside the smaller lathe the pattern is plain. Power is practically unchanged, 29.5/20 hp (22.0/14.9 kW) here against 30/20 hp (22.4/14.9 kW) on the SL8-II, but torque is about 61% higher than that machine's 161 lb-ft (218 Nm) and top speed falls from its 4,000 rpm to 3,000 rpm. A 3.18 in (81 mm) draw tube and the 10 in 3-jaw hydraulic chuck go with that. This is the choice for bigger diameters and heavier cuts at lower spindle speeds.
X travel is 9.8 in (249 mm) and Z travel 31.1 in (790 mm), a little beyond the 29.9 in (759 mm) rated turning length. Swing over the bed is 22.9 in (582 mm) and over the cross slide 15.8 in (401 mm). The tailstock is sized to match, with an MT5 quill 3.54 in (90 mm) in diameter and 4.7 in (119 mm) of travel.
Twelve stations on a bi-directional turret hold 1 in (25 mm) tool shanks and boring bars to 1.5 in (38 mm). Rapid traverse is 1,183 ipm (30.0 m/min) on X and Z. Positioning accuracy is listed at ±0.0002 in (±0.005 mm) and repeatability at 0.0002 in (0.005 mm).
Allow for 10,670 lb (4,840 kg) on the floor, a nominal operating footprint of 166 x 94.8 in (4,216 x 2,408 mm), 88.5 in (2,248 mm) of height and a 24 kVA / 59 A supply at 208-240 V, 3-phase. The display is a 15 in LCD colour touch screen.
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 9.8 in (249 mm) |
| Z Axis Travel | 31.1 in (790 mm) |
| Swing Over Bed | 22.9 in (582 mm) |
| Swing Over Cross Slide | 15.8 in (401 mm) |
| Max Turning Diameter | 17.7 in (450 mm) |
| Max Turning Length | 29.9 in (759 mm) |
| Spindle Nose | A2-8 |
| Draw Tube Diameter | 3.18 in (81 mm) |
| Max Spindle Speed | 0-3,000 rpm |
| Spindle Motor Power | 29.5/20 hp (22.0/14.9 kW) |
| Spindle Torque | 260 lb-ft (352 Nm) |
| Tailstock Quill Travel | 4.7 in (119 mm) |
| Tailstock Quill Diameter | 3.54 in (90 mm) |
| Tailstock Quill Taper | MT5 |
| Turret Stations | 12 |
| Turret Tool Size | 1 in (25 mm) |
| Boring Bar Capacity | 1.5 in (38 mm) |
| Turret Indexing | Bi-Directional |
| Rapid Traverse Xz | 1,183 ipm (30.0 m/min) |
| Positioning Accuracy | ±0.0002 in (±0.005 mm) |
| Repeatability | 0.0002 in (0.005 mm) |
| Axis Thrust Force | 3125 lb-ft Peak X, 3125 lb-ft Peak Z |
| Machine Weight | 10,670 lb (4,840 kg) |
| Machine Height | 88.5 in (2,248 mm) |
| Machine Footprint | 166 x 94.8 in (4,216 x 2,408 mm) nominal operating (W x D) |
| Power Requirement | 24 kVA / 59 A |
| Voltage Requirement | 208-240 V, 3-phase |
| Chuck Size | 10 in 3-jaw hydraulic chuck |
| Display | 15 in LCD colour touch screen |
Specifications sourced from milltronics.com — verified 2026-09-24
Strengths & Limitations
Strengths
- 260 lb-ft (352 Nm) of spindle torque, about 61% more than the 161 lb-ft (218 Nm) SL8-II
- Turns 17.7 in (450 mm) in diameter and 29.9 in (759 mm) in length
- 3.18 in (81 mm) draw tube behind a 10 in 3-jaw hydraulic chuck
- MT5 tailstock with a 3.54 in (90 mm) quill and 4.7 in (119 mm) of travel
- Z travel of 31.1 in (790 mm) leaves margin past the rated turning length
Limitations
- Spindle speed stops at 3,000 rpm; the SL8-II reaches 4,000 rpm for small-diameter work
- Boring bars are limited to 1.5 in (38 mm) and tool shanks to 1 in (25 mm), the same as on the smaller SL8-II
- The footprint is 166 x 94.8 in (4,216 x 2,408 mm) and the weight 10,670 lb (4,840 kg)
- The table shows no driven-tool or Y-axis rows, so cross-drilling and milling are not covered by the listed figures
Best For
Frequently Asked Questions
01
Maximum turning diameter is 17.7 in (450 mm) and maximum turning length is 29.9 in (759 mm). Swing is 22.9 in (582 mm) over the bed and 15.8 in (401 mm) over the cross slide, with 9.8 in (249 mm) of X travel and 31.1 in (790 mm) of Z travel.
02
260 lb-ft (352 Nm) with a speed range listed as 0-3,000 rpm and power of 29.5/20 hp (22.0/14.9 kW). The spindle nose is A2-8 and the draw tube is 3.18 in (81 mm) in diameter.
03
Size and torque. The SL8-II has an 8 in 3-jaw hydraulic chuck, turns 14 in (356 mm) by 21 in (533 mm), makes 161 lb-ft (218 Nm) and weighs 8,885 lb (4,030 kg). The SL10-II carries a 10 in chuck, turns 17.7 in (450 mm) by 29.9 in (759 mm), makes 260 lb-ft (352 Nm) and weighs 10,670 lb (4,840 kg). Both have 12 turret stations.
04
The tailstock quill has an MT5 taper, a diameter of 3.54 in (90 mm) and 4.7 in (119 mm) of travel. The SL8-II, by comparison, is listed with an MT4 quill. Z travel on the SL10-II is 31.1 in (790 mm) and the rated turning length is 29.9 in (759 mm).
05
Milltronics lists 24 kVA / 59 A at 208-240 V, 3-phase. The machine weighs 10,670 lb (4,840 kg) and stands 88.5 in (2,248 mm) high on a 166 x 94.8 in (4,216 x 2,408 mm) nominal operating footprint.
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