Johnford ST-200CX
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
swing over bed
swing over cross slide
chuck size
How much does the Johnford ST-200CX cost?
Price estimate
We do not have a price for the Johnford ST-200CX 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 the Johnford ST-200CX a roll shop gets 5,050 mm (198.8 in) between the limits of Z, a metre of swing over the cross slide and a spindle with 30 / 37 kW (40.2 / 49.6 hp).
Rolls of this size are rarely made new on such a machine every day; they come back for regrinding preparation, journal repair and re-profiling. That work is a mix of heavy and light cutting. The four automatic speeds handle the spread, from roughing a built-up weld on the barrel at low speed to skimming a journal near the 1,500 rpm limit.
Repair work also makes the options relevant. Steady rests in manual or hydraulic self-centering form carry a long roll while a journal is cut, and a tool touch probe and workpiece measuring are not on the ST list, so in-process measurement would be a matter for discussion with Johnford.
Tailstock travel is 4,600 mm (181.1 in) with a Ø200 mm (7.9 in) MT#7 quill. The chuck is 510 mm (20.1 in), or 610 mm (24 in). X travel is 520 mm (20.5 in). The machine weighs 28,500 kg (62,700 lb) and measures 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 | 139 mm (5.5 in) |
| Spindle Nose | A2-15 |
| Spindle Bore | 152 mm (6 in) |
| Spindle Transmission | Auto 4 speeds |
| Max Spindle Speed | 1,500 rpm (Std.); 1,400 rpm (Opt.) |
| Spindle Speed Geared Headstock | 1,200 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 | 200 mm (7.9 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 | 28,500 kg (62,700 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
- Four automatic speeds for mixed heavy and light cutting
- 30 / 37 kW (40.2 / 49.6 hp), optionally 37 / 45 kW (49.6 / 60.3 hp)
- Tailstock travel of 4,600 mm (181.1 in)
- 520 mm (20.5 in) of X travel
Limitations
- No probing or measuring option appears on the ST accessory list
- Machine weight of 28,500 kg (62,700 lb)
- 1,500 rpm at most with the belt-type gearbox
- 3,258 mm (128.3 in) of machine height
Best For
Frequently Asked Questions
01
Up to 1,000 mm (39.4 in) over the cross slide, 1,200 mm (47.2 in) over the bed and 5,050 mm (198.8 in) of Z travel, with 4,600 mm (181.1 in) of tailstock travel.
02
The accessory list for the ST series does not include a tool probe or a workpiece measuring device. It lists steady rests, a C axis, a live tool turret, a Y axis, a sub-spindle and boring bar systems as options.
03
The ST-200CH swings 800 mm (31.5 in) over the cross slide with 420 mm (16.5 in) of X travel and weighs 28,400 kg (62,480 lb). The ST-200CX swings 1,000 mm (39.4 in) with 520 mm (20.5 in) of X and weighs 28,500 kg (62,700 lb).
04
11,267 x 2,685 x 3,258 mm (443.6 x 105.7 x 128.3 in). The bed is a 60° slant type with a 12-position turning tool turret.
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