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KERN D 20 A x 1000

Lead Screw & Feed Shaft Lathe
KERN Model D 20 A x 1000
Year of Manufacture: 1987
HEIDENHAIN 2-Axis Digital Readout

Technical Data:

Capacity
• Centers Height: 200 mm
• Swing Over Bed: approx. 400 mm
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• 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

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

Slide & Guideways
• Heavy-duty cross and top slide
• Top slide swivels ± 45°
• Central lubrication for the guideways
• Adjustable gib strips

Tailstock
• Center sleeve: MK4 or MK5
• Quill extraction by handwheel
• Longitudinally movable on bed
• Some models with fine adjustment

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

Coolant & Electrical System
• Coolant pump factory-fitted or as optional accessory
• Electrical system built to machine standards of its time, often upgraded
• Direction 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 engine lathe (focus: conventional turning, universally applicable for single-piece and series production). It features a massive bed body, closed cast bed with box base, widely used accessory options (Multifix tool post, faceplate, coolant, central lubrication).

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