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KERN D 20 A x 1000

Lead and feed screw 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: typical 52 mm
• Spindle mount: Camlock
• Speed range: approx. 12–1200 rpm
• Main motor: typically 5–11 kW

Feeds & Threads
• Longitudinal and cross feed via feed gearbox
• Capable of cutting metric and imperial threads
• Equipped with leadscrew and feed shaft
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• Automatic feed with safety clutches

Slides & Guides
• Robust cross and top slide
• Top slide swivels ± 45°
• Central lubrication for slideways
• Adjustable gib strips

Tailstock
• Center taper: MT4 or MT5
• Quill travel via handwheel
• Longitudinally traversable on the bed
• Partially equipped with fine adjustment

Bed & Design
• Strongly ribbed cast iron bed, flat or prismatic guideways
• One-piece bed, high rigidity
• Precision-ground guideways

Coolant & Electrical
• Coolant pump supplied as standard or optional
• Electrical equipment according to machine directives at that time, often retrofitted
• Directional 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 rugged universal lathe (designed primarily for conventional turning, suitable for both single and serial production). It features a heavy-duty bed construction, closed cast bed with box-type base, widely available accessory options (Multifix tool post, faceplate, coolant, central lubrication).

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