Johnford HT-40-2S
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
swing over bed
swing over cross slide
distance between centers
How much does the Johnford HT-40-2S cost?
Price estimate
We do not have a price for the Johnford HT-40-2S 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
The Johnford HT-40-2S opens the large HT frame: Ø750 mm (29.5 in) swing over the bed, Ø600 mm (23.6 in) over the cross slide and 1,000 mm (39.4 in) between centers, with a sub-spindle in place of the tailstock.
Unlike the two small HT sizes, the main spindle is not one fixed unit. Johnford lists five variants, A to E. A is a Ø315 mm (12 in) chuck on an A2-8 nose with Ø91 mm (3.6 in) bar capacity; B a Ø381 mm (15 in) chuck on A2-11 with Ø116 mm (4.6 in); C and D a Ø510 mm (20 in) chuck with Ø139 mm (5.5 in) and Ø165 mm (6.5 in) bar; E a Ø610 mm (24 in) chuck passing Ø204 mm (8 in). Speed falls as the bore grows, from 3,000 rpm on A with the 12 in chuck to 750 rpm on E.
Power follows the same split. A and B have 22 / 26 kW (29.5 / 34.9 hp) through an Auto Hi-Lo transmission, while C, D and E have 30 / 37 kW (40.2 / 49.6 hp) through four automatic steps.
The sub-spindle is smaller than any of the big main spindles: A2-8 as standard with Ø91 mm (3.6 in) bar capacity, A2-11 as an option. On a 1,000 mm (39.4 in) bed that makes this the size for short, heavy, flanged parts that need a second-side operation rather than for long shafts. X travel is 320 mm (12.6 in).
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | Ø750 mm (Ø29.5 in) |
| Swing Over Cross Slide | Ø600 mm (Ø23.6 in) |
| Distance Between Centers | 1,000 mm (39.4 in) |
| Chuck Size | A: Ø315 mm (Ø12 in) / B: Ø381 mm (Ø15 in) / C, D: Ø510 mm (Ø20 in) / E: Ø610 mm (Ø24 in) |
| Chuck Size Optional | A: Ø381 mm (Ø15 in) / B: Ø450 mm (Ø18 in) / C, D: Ø610 mm (Ø24 in) |
| Bar Capacity | A: Ø91 mm (Ø3.6 in) / B: Ø116 mm (Ø4.6 in) / C: Ø139 mm (Ø5.5 in) / D: Ø165 mm (Ø6.5 in) / E: Ø204 mm (Ø8 in) |
| Bar Capacity Optional | A: Ø95 mm (Ø3.7 in) |
| Spindle Nose | A: A2-8 / B: A2-11 / C: A2-12 / D, E: A2-15 |
| Spindle Bore | A: Ø115 mm (Ø4.5 in) / B: Ø132.5 mm (Ø5.2 in) / C: Ø152 mm (Ø6 in) / D: Ø185 mm (Ø7.3 in), Geared head Ø176 mm (Ø6.9 in) / E: Ø236 mm (Ø9.3 in) |
| Spindle Transmission | A, B: Auto Hi-Lo / C, D, E: Auto 4-steps |
| Spindle Transmission Optional | B: Auto 4-steps |
| Max Spindle Speed | A: 3,000 rpm for 12 in chuck, 2,000 rpm for 15 in chuck / B: 2,000 rpm for Hi-Lo / C: 1,200 rpm / D: 1,000 rpm / E: 750 rpm |
| Spindle Speed Optional | B: 2,000 rpm for Auto 4-steps |
| Spindle Motor Power | A, B: 22 / 26 kW (29.5 / 34.9 hp); C, D, E: 30 / 37 kW (40.2 / 49.6 hp) |
| Spindle Power Optional | B: 30 / 37 kW (40.2 / 49.6 hp); C, D, E: 37 / 45 kW (49.6 / 60.3 hp) |
| Spindle Bearing Diameter | A: Ø160 mm (Ø6.3 in) / B: Ø180 mm (Ø7 in) / C: Ø200 mm (Ø7.9 in) / D: Ø240 mm (Ø9.4 in) / E: Ø280 mm (Ø11 in) |
| Sub Spindle Chuck Size | A: Ø315 mm (Ø12 in) / B, C, D, E: Ø381 mm (Ø15 in) |
| Sub Spindle Chuck Size Optional | A: Ø381 mm (Ø15 in) |
| Sub Spindle Bar Capacity | Ø91 mm (Ø3.6 in) (Std.) / Ø95 mm (Ø3.7 in) (Opt.) / Ø116 mm (Ø4.6 in) (Opt. for A2-11) |
| Sub Spindle Nose | A2-8 (Std.) / A2-11 (Opt.) |
| Sub Spindle Bore | Ø115 mm (Ø4.5 in) (Std.) / Ø132.5 mm (Ø5.2 in) (Opt.) |
| Sub Spindle Speed | A: 3,000 rpm for 12 in chuck, 2,000 rpm for 15 in chuck / B: 2,000 rpm / C: 1,500 rpm / D: 1,000 rpm / E: 750 rpm |
| Sub Spindle Power | A: 9 / 11 kW (12.1 / 14.8 hp); B: 11 / 15 kW (14.8 / 20.1 hp); C, D, E: 15 / 18.5 kW (20.1 / 24.8 hp) |
| Sub Spindle Bearing Diameter | Ø160 mm (Ø6.3 in) (Std.) / Ø180 mm (Ø7.1 in) (Opt.) |
| Turret Stations | 12 |
| X Axis Travel | 320 mm (12.6 in) |
| Z Axis Travel | 1,000 mm (39.4 in) |
| Rapid Traverse Rate | X: 12 m/min (472 ipm); Z: 15 m/min (591 ipm); W: 10 m/min (394 ipm) |
| Servo Motor X | 4 kW |
| Servo Motor Z1 Z2 | 4 kW |
| Servo Motor W | 4 kW |
| Bed Inclination | 45° |
| Machine Weight | A: 16,500 kg (36,300 lb) / B: 16,550 kg (36,410 lb) / C: 16,600 kg (36,520 lb) / D: 16,650 kg (36,630 lb) / E: 16,700 kg (36,740 lb) |
| Machine Dimensions | 5,200 x 3,470 x 2,840 mm (204.7 x 136.6 x 111.8 in) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- Five main spindle variants, from a Ø315 mm (12 in) chuck to a Ø610 mm (24 in) chuck
- Up to Ø204 mm (8 in) bar capacity with spindle variant E
- 30 / 37 kW (40.2 / 49.6 hp) with four automatic speed steps on variants C, D and E
- Ø600 mm (23.6 in) swing over the cross slide and 320 mm (12.6 in) of X travel
- Sub-spindle with Ø91 mm (3.6 in) bar capacity as standard
Limitations
- Only 1,000 mm (39.4 in) between centers on a machine of 16,500 kg (36,300 lb) or more
- Variant E runs no faster than 750 rpm
- The sub-spindle is A2-8 as standard, far smaller than a C, D or E main spindle
- W-axis rapid is 10 m/min, slower than the 15 m/min of Z
Best For
Frequently Asked Questions
01
They are main spindle sizes. A: A2-8 nose, Ø115 mm (4.5 in) bore. B: A2-11, Ø132.5 mm (5.2 in). C: A2-12, Ø152 mm (6 in). D: A2-15, Ø185 mm (7.3 in). E: A2-15, Ø236 mm (9.3 in). Chuck size, bar capacity, speed and motor change with the letter.
02
It depends on the variant. A reaches 3,000 rpm with the 12 in chuck and 2,000 rpm with the 15 in chuck. B runs to 2,000 rpm, C to 1,200 rpm, D to 1,000 rpm and E to 750 rpm.
03
The standard sub-spindle has an A2-8 nose, a Ø115 mm (4.5 in) bore and Ø91 mm (3.6 in) bar capacity. An A2-11 nose with a Ø132.5 mm (5.2 in) bore is optional. Sub-spindle motors run from 9 / 11 kW (12.1 / 14.8 hp) to 15 / 18.5 kW (20.1 / 24.8 hp) depending on the variant.
04
Between 16,500 kg (36,300 lb) with spindle A and 16,700 kg (36,740 lb) with spindle E. The machine measures 5,200 x 3,470 x 2,840 mm (204.7 x 136.6 x 111.8 in).
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