The Jung JF520 is a used surface grinding machine — sometimes referred to as a flat grinder — offered here in a quantity of two units, both located in Portugal. Surface grinders are precision machine tools designed to produce flat, smooth finishes on metal workpieces by passing them beneath a rotating abrasive wheel, and are widely used in toolmaking, die manufacture, and general precision engineering. Jung is a well-regarded German manufacturer with a long history of producing high-precision grinding machines for the metalworking and toolroom industries.
The machine is built around a table measuring 750 × 400 mm (a second reference in the seller's notes gives 750 × 500 mm), with a magnetic chuck surface of 600 × 200 mm and a separate electromagnetic chuck of 750 × 300 mm supplied with the machine. Maximum grinding length is 600 mm, maximum grinding width is 500 mm, and maximum grinding height is 625 mm. The distance from the table surface to the centre of the grinding spindle reaches up to 495 mm, giving the machine useful vertical reach for taller workpieces.
Two grinding wheel sizes are referenced in the specification data: a wheel of 250 × 25 × 51 mm and a larger wheel of 400 × 80 mm. The grinding spindle runs at 1,500 rpm. Table travel speed is variable between 2 and 20 m/min, while electrical cross-feed operates at 1.20 m/min and intermittent cross-feed is adjustable from 2 to 60 m/min, providing flexible control over the grinding pass and finish quality.
The machine has an overall footprint of 3,100 × 2,400 × 2,200 mm and weighs 3,500 kg, reflecting the robust, vibration-resistant construction typical of precision surface grinders. Both units are priced at $7,500 each and are available in used condition from the seller's location in Portugal.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.