Johnford HT-40-2SD
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
swing over bed
swing over cross slide
distance between centers
How much does the Johnford HT-40-2SD cost?
Price estimate
We do not have a price for the Johnford HT-40-2SD 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
Everything the large HT frame offers is on the Johnford HT-40-2SD at once: two 12-station turrets, a main spindle chosen from five sizes, and a sub-spindle, on 1,000 mm (39.4 in) between centers with Ø750 mm (29.5 in) of swing.
The difficulty with a machine like this is matching the two ends. The main spindle can be as large as variant E, with a Ø610 mm (24 in) chuck and a Ø236 mm (9.3 in) bore. The sub-spindle is at most an A2-11 unit, an option, with a Ø132.5 mm (5.2 in) bore and a Ø381 mm (15 in) chuck. So a part held in a 20 in or 24 in chuck for the first side has to offer a diameter the smaller sub-spindle chuck can grip for the second.
Where the two ends are closer in size, as with variant A or B, the layout works like the small 2SD machines on a larger scale: both turrets busy, one per spindle. Variant A gives Ø315 mm (12 in) chucks on both sides and 3,000 rpm on both.
Unlike the HT-40-2D, both Z axes here travel the full 1,000 mm (39.4 in). X travel is 320 mm (12.6 in) per turret and the sub-spindle rapid on W is 10 m/min. With spindle A the machine weighs 18,000 kg (39,600 lb), the heaviest of the three HT-40 layouts.
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, 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 / 12 |
| X Axis Travel | 320 / 320 mm (12.6 / 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 X1 X2 | 4 kW |
| Servo Motor Z1 Z2 | 4 kW |
| Servo Motor W | 4 kW |
| Bed Inclination | 45° |
| Machine Weight | A: 18,000 kg (39,600 lb) / B: 18,050 kg (39,710 lb) / C: 18,100 kg (39,820 lb) / D: 18,150 kg (39,930 lb) / E: 18,200 kg (40,040 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
- Twin turrets and twin spindles on a Ø750 mm (29.5 in) swing bed
- Main spindle variants up to a Ø610 mm (24 in) chuck and Ø204 mm (8 in) bar
- Both Z axes travel 1,000 mm (39.4 in)
- Sub-spindle available with an A2-11 nose and Ø116 mm (4.6 in) bar capacity
- Variant A runs both spindles at 3,000 rpm with 12 in chucks
Limitations
- Sub-spindle chuck is Ø381 mm (15 in) at most, whatever the main spindle
- W-axis rapid traverse of 10 m/min for the sub-spindle
- 18,000 kg (39,600 lb) or more on a 1,000 mm (39.4 in) bed
- Sub-spindle motor is 9 / 11 kW (12.1 / 14.8 hp) with variant A
Best For
Frequently Asked Questions
01
The HT-40-2S has one turret and a sub-spindle and weighs 16,500 kg (36,300 lb) with spindle A. The HT-40-2D has two turrets and a tailstock at 17,000 kg (37,400 lb). The HT-40-2SD has two turrets and a sub-spindle at 18,000 kg (39,600 lb).
02
With main spindle variant A the sub-spindle chuck is Ø315 mm (12 in), or Ø381 mm (15 in) as an option; with variants B to E it is Ø381 mm (15 in). The nose is A2-8 as standard and A2-11 as an option.
03
With variant A, 3,000 rpm for the 12 in chuck and 2,000 rpm for the 15 in chuck. With B it is 2,000 rpm, with C 1,500 rpm, with D 1,000 rpm and with E 750 rpm.
04
320 mm (12.6 in) on each of X1 and X2 and 1,000 mm (39.4 in) on Z1/Z2. Rapid traverse is 12 m/min on X, 15 m/min on Z and 10 m/min on W.
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