Conventional lathe Sinus 400/2000 D
horizontalD1-8for long workpieces

Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 2
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 3
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 4
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 5
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 6
Conventional lathe - Sinus 400/2000 D - Knuth Machine Tools - horizontal / D1-8 / for long workpieces - image - 7
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Characteristics

Control type
conventional
Spindle orientation
horizontal
Spindle mount
D1-8
Applications
for heavy-duty machining, for long workpieces
Diameter

800 mm
(31.5 in)

Spindle speed

Max.: 1,600 rpm
(10,053.096 rad.min-1)

Min.: 25 rpm
(157.08 rad.min-1)

Maximum part length

2,000 mm
(79 in)

Axe X

420 mm
(17 in)

Axe Z

230 mm
(9 in)

Rapids on X

2,000 mm/min
(1 in/s)

Rapids on Z

2,000 mm/min
(1 in/s)

Nominal power

7.5 kW
(10.2 hp)

Overall lenght

3,740 mm
(147 in)

Overall width

1,140 mm
(45 in)

Overall height

1,910 mm
(75 in)

Weight

3,500 kg
(7,716 lb)

Description

Overview
Sinus D is the largest series in the conventional engine lathe segment. The design relies on a heavy one-piece cast bed and a mechanical multi-plate clutch between motor and spindle. Integrated features such as a removable bed bridge, rapid traverse and a taper turning device support machining of long workpieces and large flanges.

Highlights
  • One-piece heavy-duty cast bed for high rigidity
  • Massive headstock with large spindle bearings and 105 mm spindle bore
  • Rapid feed on X and Z axes for reduced non-productive times
  • Taper turning device included to expand turning capabilities
  • Comprehensive safety and protection features (guards, overload protection)


Product details
  • Machine bed: Heavy one-piece cast base frame; bed guideways induction hardened and ground for lasting accuracy and low wear.
  • Headstock and feed gear: Robust design delivering high accuracy and smooth running under load; spindle bore 105 mm; mechanical multi-plate clutch for controlled spindle start-up.
  • Support (steady): Travelling steady can be moved longitudinally and transversely via rapid traverse to reduce auxiliary time; integrated overload protection and lead-screw cover to minimize contamination and wear.
  • Tailstock: Tailstock quill with readable scale, long quill stroke (235 mm) and lateral adjustment for conical work and deep drilling/centering.
  • Equipment and accessories: Centralized lubrication on the support; taper turning device standard (automatic longitudinal feed for external/internal tapers); quick-change toolholder system with cartridge; fixed and travelling steady rests included; large rear splashguard; integrated LED worklight; coolant system and operating tools included.


Technical specifications (selected tables)
Working area
Workpiece length (max.): 2.000 mm
Turning diameter over bed: 800 mm
Turning Ø over support: 570 mm
Turning diameter without gap bridge: 1.035 mm
Gap bridge length: 330 mm
Bed width: 400 mm

Travels
Travel X-axis: 420 mm
Travel Z1-axis: 230 mm
Swing range of top slide: 70°

Headstock
Spindle speed: 25 1/min - 1.600 1/min
Spindle bore: 105 mm
Spindle mount: D1-8
Spindle taper: ø 113 mm / 1:20

Rapid feed
Rapid feed X-axis: 2.000 mm/min
Rapid feed Z-axis: 4.000 mm/min

Feed
Feed X-axis: 0,022 mm/R - 0,74 mm/R
Feed Z-axis: 0,044 mm/R - 1,48 mm/R

Threading
Threading, metric: 0,45 mm - 120 mm
Threading, diametric: 0,88 DP - 160 DP
Threading, module: 0,25 mm - 60 mm
Threading, Whitworth: (54) 7/16 - 80 TPI

Tailstock
Tailstock quill diameter: 90 mm
Tailstock taper: 5 MT
Tailstock quill stroke: 235 mm
Tailstock traverse adjustment: ± 11 mm

Drive capacity
Motor rating main drive: 7,5 kW

Measures and weights
Overall dimensions (L x W x H): 3,74 m x 1,14 m x 1,91 m
Weight: 3.500 kg

Characteristics / technical data
  • Model: Sinus 400/2000 D
  • Category: Engine lathe (conventional lathe)
  • Workpiece length (max.): 2.000 mm
  • Turning diameter over bed: 800 mm
  • Turning Ø over support: 570 mm
  • Bed width: 400 mm
  • Travel X-axis: 420 mm
  • Travel Z1-axis: 230 mm
  • Spindle speed range: 25 - 1.600 1/min
  • Spindle bore: 105 mm
  • Spindle mount: D1-8
  • Spindle taper: ø 113 mm / 1:20
  • Rapid feed X/Z: 2.000 / 4.000 mm/min
  • Feed ranges X/Z: 0,022–0,74 mm/R / 0,044–1,48 mm/R
  • Threading ranges: metric 0,45–120 mm; diametric 0,88–160 DP; module 0,25–60 mm; Whitworth (54) 7/16–80 TPI
  • Tailstock quill diameter/stroke: 90 mm / 235 mm
  • Main motor power: 7,5 kW
  • Overall dimensions (L×W×H): 3,74 m × 1,14 m × 1,91 m
  • Weight: 3.500 kg

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Exhibitions

Meet this supplier at the following exhibition(s):

IMTS 2026
IMTS 2026

14-19 Sep 2026 Chicago (USA - Illinois) Hall South Level 3 - Stand 338012

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