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Jung / Supromatic JF 520

Jung Supromatic JF 520

Jung Supromatic JF 520 Surface Grinding Machine, year 2016, in excellent general overhauled original condition
The machine comes from the technical center of a renowned German mechanical engineering company.

Technical data:

Year of manufacture: 2000
Technical data
Clamping surface (L x W in mm): 600 x 200
Grindable area (L x W in mm): 600 x 250
Max. magnet size (mm): 500 x 200
Max. grinding wheel dimensions (mm): 225 (250) x 25 x 51
Distance table/spindle center (mm): max. 400
Table longitudinal feed – oscillation (m/min): 1 – 20
Crawl feed (mm/min): 0 – 500
Grinding spindle drive / speed (rpm): 800 – 4200
Power (kW, with crawl feed): 1.6 – 2.2

Machine weight approx.: 2.0 t

Accessories and equipment:

Electromagnetic chuck
Coolant device
Machine feet
Grinding wheel

Dedpfx Aoy Naw Iocuocg
About the machine:

We offer a Jung Supromatic JF 520 surface grinding machine, year 2016, in very good condition. The machine is fully functional and has been in operation for approximately 50 hours since the overhaul. All slides run very smoothly and evenly. Even at high feed rates, the Jung operates very quietly. This newer generation of surface grinding machines is very operator-friendly and capable of producing surfaces with a low Rz value. Take the opportunity to view the machine under power on site and see its condition for yourself.

Scope of overhaul

Mechanical scope
- Basic mechanical overhaul
- Hydraulics
- Infeed
- Lubrication
- Cross and vertical adjustment
- Grinding spindle
- Dresser
- Painting in new-machine quality

Geometrical scope
- Guideway grinding at the manufacturer's facility (optional)
- Scraping of guideways
- Column withdrawal, measurement, possible scraping/grinding, refitting with pressure pads, inspection and restoration of guideways
- Setting cross pattern on spindle head
- Dresser alignment
- Grinding of table and magnet surfaces
- Machine acceptance per manufacturer's inspection sheet

Electrical scope
- Complete renewal of electrical system, all limit switches and push-buttons
- Conversion of X-axis from cam switch to contactless limit switches
- New control cabinet
- RSF position display (2- or 3-axis readout)
- Holding force control for 24V or electro-permanent magnetic chuck
- Control system modernization
- New auxiliary control cabinet (operator panel top right)
- Thyristor control for grinding spindle drive
- Manual cylindrical dressing with head or side dresser (for Diaform operation)

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