Lead/traction spindle lathe

KERN D 20 A x 1000

Leadscrew and feed shaft lathe
KERN Type D 20 A x 1000
Year of manufacture: 1987
HEIDENHAIN 2-axis digital readout

Technical Specifications:

Capacity
• Center height: 200 mm
• Swing over bed: approx. 400 mm
• Swing over cross slide: approx. 200–250 mm
• Distance between centers: 1000 mm

Spindle / Drive
• Spindle bore: typ. 52 mm
• Spindle mount: Camlock
• Speed range: approx. 12–1200 rpm
• Main motor: typically 5–11 kW

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Feeds & Thread Cutting
• Longitudinal and cross feed via feed gearbox
• Capable of cutting metric and imperial threads
• Leadscrew and feed shaft present
• Automatic feed with safety clutches

Carriage & Slideways
• Heavy-duty cross and top slide
• Top slide swivels ± 45°
• Central lubrication for slideways
• Gib strips adjustable

Tailstock
• Quill taper: MT4 or MT5
• Quill extension via handwheel
• Longitudinally adjustable on bed
• Partially with fine adjustment

Bed & Construction
• Heavily ribbed cast iron bed, flat or prism guideway based
• One-piece bed, high rigidity
• Precision ground guideways

Coolant & Electrical Equipment
• Coolant pump standard or optional
• Electrics per machine guidelines at time of manufacture, often retrofitted
• Direction of rotation switch, emergency stop, main switch

Dimensions & Weight
• Length: approx. 2.2–2.6 m
• Width: approx. 1.0 m
• Height: approx. 1.4–1.6 m
• Weight: approx. 1500–2000 kg

Description
The KERN D 20 (D/DS series) is a robust universal lathe (focus: conventional turning, universally suitable for single and series production). It features a solid bed, fully enclosed cast iron bed with box-type base, and a wide range of commonly used accessories (Multifix toolpost, faceplate, coolant system, central lubrication).

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