Johnford ST-200DX
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
swing over bed
swing over cross slide
chuck size
How much does the Johnford ST-200DX cost?
Price estimate
We do not have a price for the Johnford ST-200DX 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 Johnford ST-200DX takes heavy parts five metres long and a metre across. Z travel is 5,050 mm (198.8 in), swing over the cross slide 1,000 mm (39.4 in), and the spindle is the D unit with a 185 mm (7.3 in) bore.
Think of the cutting conditions on such a part. At a diameter near the swing limit, a modest spindle speed already gives a high surface speed, so the 1,000 rpm ceiling is never approached on the large sections; it only matters on small journals. What counts instead is torque at low speed and the stiffness of the supports. The four-speed transmission, the 240 mm (9.4 in) spindle bearing and the Ø200 mm (7.9 in) MT#7 quill are the relevant figures, along with the optional steady rests.
Motor power is 30 / 37 kW (40.2 / 49.6 hp), or 37 / 45 kW (49.6 / 60.3 hp) as an option.
The tailstock travels 4,600 mm (181.1 in). X travel is 520 mm (20.5 in) with a 7 kW servo motor. Bar capacity is 165 mm (6.5 in). The machine weighs 28,700 kg (63,140 lb) and its outside dimensions are 11,267 x 2,685 x 3,258 mm (443.6 x 105.7 x 128.3 in).
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | 1,200 mm (47.2 in) |
| Swing Over Cross Slide | 1,000 mm (39.4 in) |
| Chuck Size | 510 mm (20.1 in) |
| Chuck Size Optional | 610 mm (24 in) |
| Bar Capacity | 165 mm (6.5 in) |
| Spindle Nose | A2-15 |
| Spindle Bore | 185 mm (7.3 in) / Geared headstock 176 mm (6.9 in) |
| Spindle Transmission | Auto 4 speeds |
| Max Spindle Speed | 1,000 rpm |
| Spindle Speed Geared Headstock | 1,000 rpm |
| Spindle Motor Power | 30 / 37 kW (40.2 / 49.6 hp) (Std.); 37 / 45 kW (49.6 / 60.3 hp) (Opt.) |
| Spindle Bearing Diameter | 240 mm (9.4 in) |
| Turret Stations | 12 |
| X Axis Travel | 520 mm (20.5 in) |
| Y Axis Travel Optional | ±75 mm (±3 in) |
| Z Axis Travel | 5,050 mm (198.8 in) |
| Rapid Traverse Rate | X: 10 m/min (394 ipm); Y: 10 m/min (394 ipm); Z: 12 m/min (472 ipm) |
| Tailstock Travel | 4,600 mm (181.1 in) |
| Tailstock Quill Travel | 150 mm (5.9 in) |
| Tailstock Quill Diameter | Ø200 mm (Ø7.9 in) |
| Tailstock Taper | MT#7 |
| Servo Motor X | 7 kW |
| Servo Motor Y Optional | 3 kW |
| Servo Motor Z | 7 kW |
| Bed Inclination | 60° |
| Machine Weight | 28,700 kg (63,140 lb) |
| Machine Dimensions | 11,267 x 2,685 x 3,258 mm (443.6 x 105.7 x 128.3 in) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- 5,050 mm (198.8 in) of Z travel with 1,000 mm (39.4 in) swing over the cross slide
- 240 mm (9.4 in) spindle bearing and Ø200 mm (7.9 in) MT#7 quill
- Four automatic speeds for torque at low rpm
- Tailstock travel of 4,600 mm (181.1 in)
- Optional 37 / 45 kW (49.6 / 60.3 hp) motor
Limitations
- 1,000 rpm limits finishing speed on small journals
- Machine weight of 28,700 kg (63,140 lb)
- 11,267 mm (443.6 in) long and 3,258 mm (128.3 in) high
- Steady rests are optional
Best For
Frequently Asked Questions
01
02
03
520 mm (20.5 in) on X and 5,050 mm (198.8 in) on Z, with 4,600 mm (181.1 in) of tailstock travel. An optional Y axis adds ±75 mm (±3 in).
04
11,267 x 2,685 x 3,258 mm (443.6 x 105.7 x 128.3 in). A chain type chip conveyor with trolley is standard equipment.
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