Johnford HT-100-2S
Key Specifications
Max Spindle
Rapid Traverse
Spindle Power
swing over bed
swing over cross slide
distance between centers
How much does the Johnford HT-100-2S cost?
Price estimate
We do not have a price for the Johnford HT-100-2S 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 longest single-turret HT with a sub-spindle, the Johnford HT-100-2S, has 2,500 mm (98.4 in) between centers and the same Z1/Z2 travel. It is also the largest in every outside dimension: 6,600 x 3,595 x 2,940 mm (259.8 x 141.5 x 115.7 in), where the HT-80-2S is 3,470 mm (136.6 in) wide.
Bed length costs a little swing. Over the bed the figure is Ø690 mm (27.2 in), the smallest of the four large HT sizes, though swing over the cross slide stays at Ø600 mm (23.6 in) and X travel at 320 mm (12.6 in). In practice the part diameter is set by the cross slide figure and by the chuck, which ranges from Ø315 mm (12 in) on spindle A to Ø610 mm (24 in) on spindle E.
What can pass through the headstock matters more on a machine like this than what swings over it. Spindle bores are Ø115 mm (4.5 in), Ø132.5 mm (5.2 in), Ø152 mm (6 in), Ø185 mm (7.3 in) and Ø236 mm (9.3 in) for A to E; the D figure drops to Ø176 mm (6.9 in) with the geared head.
Z and W are driven by 7 kW servo motors, rapids are 12 m/min on X, 15 m/min on Z and 10 m/min on W, and the weight is 22,500 kg (49,500 lb) to 22,700 kg (49,940 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | Ø690 mm (Ø27.2 in) |
| Swing Over Cross Slide | Ø600 mm (Ø23.6 in) |
| Distance Between Centers | 2,500 mm (98.4 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) |
| 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. for A2-11) |
| 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 | 2,500 mm (98.4 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 | 7 kW |
| Servo Motor W | 7 kW |
| Bed Inclination | 45° |
| Machine Weight | A: 22,500 kg (49,500 lb) / B: 22,550 kg (49,610 lb) / C: 22,600 kg (49,720 lb) / D: 22,650 kg (49,830 lb) / E: 22,700 kg (49,940 lb) |
| Machine Dimensions | 6,600 x 3,595 x 2,940 mm (259.8 x 141.5 x 115.7 in) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- 2,500 mm (98.4 in) between centers with a sub-spindle
- Spindle bore up to Ø236 mm (9.3 in)
- Chuck sizes from Ø315 mm (12 in) to Ø610 mm (24 in)
- Optional 37 / 45 kW (49.6 / 60.3 hp) motor for variants C, D and E
- Independent boring bar system on the lower guideways is available
Limitations
- Swing over the bed is Ø690 mm (27.2 in), the least of the large HT sizes
- Needs 6,600 x 3,595 mm (259.8 x 141.5 in) of floor
- Sub-spindle rapid on W is 10 m/min
- The geared head reduces the D bore to Ø176 mm (6.9 in)
Best For
Frequently Asked Questions
01
Distance between centers is 2,500 mm (98.4 in), and the Z1/Z2 travel is the same. Bar or tube can also pass through the main spindle, whose bore runs from Ø115 mm (4.5 in) on variant A to Ø236 mm (9.3 in) on variant E.
02
03
The table lists spindle variant D with a Ø185 mm (7.3 in) bore, or Ø176 mm (6.9 in) with a geared head. The standard accessory list names an auto 2-speed or 4-speed belt type gearbox for the bigger HT machines.
04
22,500 kg (49,500 lb) with spindle A, 22,550 kg (49,610 lb) with B, 22,600 kg (49,720 lb) with C, 22,650 kg (49,830 lb) with D and 22,700 kg (49,940 lb) with E.
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