Ganesh GEN TURN SL-42Y2
Image: expandmachinery.com, Ganesh
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
Max Turn Length
bar capacity
spindle bore
How much does the Ganesh GEN TURN SL-42Y2 cost?
Price estimate
We do not have a price for the Ganesh GEN TURN SL-42Y2 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
With bar capacity to 1-5/8 in (42 mm), the GEN TURN SL-42Y2 sits at the top of what a sliding-headstock machine usually handles. Expand Machinery sells it as a hybrid 8-axis CNC Swiss machine, but note the default: the table gives the bar range as 1/4 - 1-5/8 in (5 - 42 mm) without guide bushing, and the rotary guide bushing is an option that uses Hardinge STM38 bushings.
That makes it, as listed, a twin-spindle bar machine with a sliding headstock. Turning length without the bushing is 4.13 in (105 mm). Fit the bushing and a single stroke of the headstock covers 12.20 in (310 mm), which is where the Swiss principle earns its keep on shafts and pins.
Power matches the bar size. The main spindle motor is rated 10 HP for 15 min and 7.5 HP on constant duty, at up to 6,000 rpm, and a lever-action collet closer driven by a hydraulic piston grips Traub-42 or 173E collets. The main tool post has 6 turning tools of 16 mm (5/8 in) shank, internal tool bores and deep hole positions of 25 mm, and 6 ER-20 cross live spindles at 4,000 rpm and 2 HP (1.6 kW). On center the machine drills 13 mm and taps M10.
The sub-spindle has the same 1.732 in (44 mm) bore as the main spindle, so a full-diameter 1-5/8 in (42 mm) part can be gripped for back working. Its tool block carries 3 turning tools and 3 ER-16 axial live tools, and holds 8 tools in all. The machine weighs 11,024 lb (5,000 kg), against 5,954 lb (2,700 kg) for the GEN TURN SL-20Y2, and it runs on cutting oil only from a 65 gallon (250 L) tank. Control is the Mitsubishi M-830.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | 1/4 - 1-5/8 in (5 - 42 mm) without guide bushing |
| Spindle Bore | 1.732 in (44 mm) |
| Max Spindle Speed | 6,000 rpm |
| Spindle Motor Power | 10 HP 15 min duty rated (7.5 HP constant duty rated); 5.5 / 7.5 kW |
| Collet Style | Traub-42 / 173E |
| Collet Closer | Lever action collet closer, driven by hydraulic piston |
| Guide Bushing | Optional rotary guide bushing, uses Hardinge STM38 bushings |
| Max Turning Length | 12.20 in (310 mm) single stroke with the optional rotary guide bushing; 4.13 in (105 mm) without bushing |
| Main Spindle Stroke | 12.20 in (310 mm) |
| OD Turning Tools | 6 square shank tool holders, 16 mm (5/8 in) (S1) |
| ID Tool Holders | 5 round tool sleeve bores, 25 mm shank (S1) |
| Deep Hole Drill Positions | 2 round tool sleeve bores, 25 mm shank (S1) |
| Cross Slide Live Tools | 6 ER-20 collet chuck spindles, 4,000 rpm, 2 HP (1.6 kW) (S1) |
| Front Slide Live Tools | 3 ER-20 front axial live tools, optional in lieu of 1 cross tool (S1) |
| Drilling Tapping Capacity | 13 mm drilling / M10 tapping (main spindle and sub spindle) |
| Cross Drilling Tapping Capacity | 10 mm drilling / M6 tapping (option) |
| Sub Spindle Speed | 6,000 rpm |
| Sub Spindle Bar Capacity | 1-5/8 in (42 mm) |
| Sub Spindle Bore | 1.732 in (44 mm) |
| Sub Spindle OD Tools | 3 square shank turning tool holders, 16 mm (S2) |
| Sub Spindle ID Tools | 5 round tool sleeve bores, 25 mm shank (S2) |
| Sub Spindle Live Tools | 3 ER-16 axial live tools, 4,000 rpm, 1.0 HP (0.75 kW) (S2, 8 possible) |
| Front Ejection Length | 110 mm maximum part length for front ejection from sub spindle |
| Rapid Traverse Rate | 944 ipm (24 m/min) X1, Y1, Z1, X2, Y2, Z2 |
| Axis Motor Power | X1, Z1 2 HP (1.4 kW); X2, Y1, Y2, Z2 1 HP (0.75 kW) |
| Machine Weight | 11,024 lb (5,000 kg) |
| Coolant Pump | 1-3/4 HP (1.3 kW) with flow confirmation monitor |
| Coolant Tank Capacity | 65 gallons (250 L), cutting oil only |
| Power Requirement | 220 VAC ±5%, 80 amps, 30 kVA, 3-phase, 60 Hz |
| Air Requirement | 85 psi at 6 cfm |
| CNC Control | Mitsubishi M-830 |
Specifications sourced from expandmachinery.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Bar capacity to 1-5/8 in (42 mm) with a 1.732 in (44 mm) bore in both spindles
- Optional rotary guide bushing gives 12.20 in (310 mm) of turning length in one stroke
- 10 HP 15 min rated main spindle motor at up to 6,000 rpm
- 6 ER-20 cross live spindles at 2 HP (1.6 kW), with Y and C axes on both sides
- Hydraulic lever-action collet closer
Limitations
- The rotary guide bushing is an option, not standard
- Without the bushing, turning length is 4.13 in (105 mm)
- Live tools run at 4,000 rpm, half the 8,000 rpm of the cross tools on the GEN TURN SL-20Y2
- Needs 80 amps, 30 kVA at 220 VAC and weighs 11,024 lb (5,000 kg)
Best For
Frequently Asked Questions
01
No. The rotary synchronous guide bushing is optional and uses Hardinge STM38 bushings. As listed, the machine runs bar from 1/4 - 1-5/8 in (5 - 42 mm) without a guide bushing, with a turning length of 4.13 in (105 mm). With the bushing fitted, turning length in a single stroke is 12.20 in (310 mm).
02
The main spindle runs to 6,000 rpm on a motor rated 10 HP for 15 min duty and 7.5 HP constant duty, given as 5.5 / 7.5 kW. The sub-spindle also runs to 6,000 rpm. Both spindles have a 1.732 in (44 mm) bore and use Traub-42 / 173E collets.
03
Six ER-20 cross slide live spindles at 4,000 rpm and 2 HP (1.6 kW) serve the main spindle, and 3 ER-20 front axial live tools are optional in place of 1 cross tool. The sub-spindle block has 3 ER-16 axial live tools at 4,000 rpm and 1.0 HP (0.75 kW). Expand Machinery notes that the block can mix live and fixed tools.
04
The GEN TURN SL-20Y2 is the 20 mm machine with a 10,000 rpm main spindle and a removable guide bushing; it weighs 5,954 lb (2,700 kg). The GEN TURN SL-42Y2 takes 42 mm bar at 6,000 rpm, has the bushing as an option and weighs 11,024 lb (5,000 kg). Both rapid at 944 ipm (24 m/min).