Johnford SL-80A-2S
Key Specifications
Max Spindle
Spindle Power
swing over bed
swing over cross slide
chuck size
bar capacity
How much does the Johnford SL-80A-2S cost?
Price estimate
We do not have a price for the Johnford SL-80A-2S 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 1,800 mm (70.9 in) between its spindles, the Johnford SL-80A-2S handles long parts that need both ends finished. It is the middle length of the three large twin-spindle SL lathes.
Why use a sub-spindle instead of a tailstock on a part this long? Because of the ends. A tailstock centre occupies the end face, so that face, its centre bore and any thread or spline next to it must be machined in a second setup on another machine or after turning the part around. A sub-spindle grips the outside diameter and leaves the end free for the turret, or takes the whole part over so that the driven end can be finished. For shafts with threaded ends, bored ends or bearing seats at both extremes, that removes a handling step and the alignment error that goes with it.
The cost is support. An 8 in chuck with a Ø66 mm (Ø2.6 in) bore is a grip, not a centre, and the accessory list states that the sub-spindle replaces the tailstock. Steady rests, which Johnford offers in manual and hydraulic versions, matter more here than on the tailstock models.
The main spindle is the 22 / 26 kW (29.5 / 34.9 hp) unit with a 12 in chuck, Ø115 mm (Ø4.5 in) bore and 2 step automatic transmission. Bar capacity is Ø91 mm (Ø3.6 in), or Ø102 mm (Ø4 in) as an option.
Bed figures: Ø700 mm (Ø27.6 in) swing, Ø540 mm (Ø21.3 in) over the cross slide, 295 mm (11.6 in) of X. Weight is 14,500 kg (31,900 lb) and length 7,200 mm (283.5 in).
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | Ø700 mm (Ø27.6 in) |
| Swing Over Cross Slide | Ø540 mm (Ø21.3 in) |
| Chuck Size | 12 in (305 mm) |
| Bar Capacity | Ø91 mm (Ø3.6 in) / Ø102 mm (Ø4 in) (Opt.) |
| Spindle Nose | A2-8 / A2-11(Opt.) |
| Spindle Bore | Ø115 mm (Ø4.5 in) |
| Spindle Transmission | 2 step Auto |
| Max Spindle Speed | 3,000 / 2,800 rpm (Opt.) |
| Spindle Motor Power | 22 / 26 kW (29.5 / 34.9 hp) |
| Spindle Bearing Diameter | Ø160 mm (Ø6.3 in) |
| Sub Spindle Chuck Size | 8 in (203 mm) |
| Sub Spindle Bar Capacity | Ø51 mm (Ø2 in) |
| Sub Spindle Nose | A2-6 |
| Sub Spindle Bore | Ø66 mm (Ø2.6 in) |
| Sub Spindle Transmission | One step |
| Sub Spindle Speed | 4,500 rpm |
| Sub Spindle Power | 11 / 15 kW (14.8 / 20.1 hp) |
| Sub Spindle Bearing Diameter | Ø100 mm (Ø3.9 in) |
| Turret Stations | 12 |
| X Axis Travel | 295 mm (11.6 in) |
| Y Axis Travel | ±50 mm (±2 in) |
| Z Axis Travel | 1,800 mm (70.9 in) |
| Rapid Traverse X1 Y Z1 Z2 | 12 / 10 / 15 / 15 m/min (472 / 394 / 591 / 591 ipm) |
| Servo Motor X | 3 kW; 4 kW with Y-axis |
| Servo Motor Y | 3.8 kW |
| Servo Motor Z1 Z2 | 4 kW |
| Power Turret Motor | 3.7 / 5.5 kW (5.0 / 7.4 hp) |
| Bed Inclination | 45° |
| Machine Weight | 14,500 kg (31,900 lb) |
| Machine Width Height | 2,520 x 2,200 mm (99.2 x 86.6 in) |
| Machine Length | 7,200 mm (283.5 in) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- 1,800 mm (70.9 in) of Z1/Z2 travel with a sub-spindle in place of the tailstock
- Both shaft ends can be finished without re-chucking by hand
- 22 / 26 kW (29.5 / 34.9 hp) main spindle, Ø115 mm (Ø4.5 in) bore
- Ø540 mm (Ø21.3 in) swing over the cross slide
- Manual and hydraulic steady rests available
Limitations
- No tailstock centre for long slender shafts
- Sub-spindle bore of Ø66 mm (Ø2.6 in) and bar capacity of Ø51 mm (Ø2 in)
- Steady rests are optional accessories
- 7,200 mm (283.5 in) long, 14,500 kg (31,900 lb)
Best For
Frequently Asked Questions
01
The Z1/Z2 travel is 1,800 mm (70.9 in). The SL-70A-2S has 1,400 mm (55.1 in) and the SL-100A-2S 2,300 mm (90.6 in).
02
Main: 12 in chuck, A2-8 nose with A2-11 as an option, 22 / 26 kW (29.5 / 34.9 hp), 3,000 rpm or 2,800 rpm as the optional figure. Sub: 8 in chuck, A2-6 nose, 11 / 15 kW (14.8 / 20.1 hp), 4,500 rpm.
03
The table lists ±50 mm (±2 in) of Y travel and a 3.7 / 5.5 kW (5.0 / 7.4 hp) power turret motor. In the accessory list the C+Y axis and the live tool turret are options, and the standard turret is a 12-position non-driven type.
04
7,200 mm (283.5 in) long and 2,520 x 2,200 mm (99.2 x 86.6 in) in width and height, with a weight of 14,500 kg (31,900 lb).
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