Repair of Overall Geometry:
Replacement of Column 4
Re-Machining of Columns 1-3
Machining & Pre-Stressing of the Heap Table & Replacement of Slide Rails
Replacement of Mobile Gantry Guide Rings
Repair of the Press Actuators:
Replacement of 2 Cylinders & Retrofit of the Third Cylinder
Replacement of 3 Guide Rings + Seals
Piston Grinding
Repair of Support Columns Links (1 New + 2 Modified)
Repair of the Hydraulic System of the Press:
Replacement of the 3 Valves
New HP & LP Pipes at the Top of the Press
Electro-Hydraulic Control System for Forging and the Heap
Main Improvements:
Work Station Ergonomics
Centralized Greasing
Installation of Stress Gauges
Supervision of Machine Pre-Stressing
A New Hydraulic System
Manufacturer: Duisburg
Model: 7500
Condition: Used
Stock Number: 10228
Retrofit: 2008/2011
Number of columns: 4
Number of cylinders: 3
Nominal force: 80 MN
Upsetting force: 90 MN
1 cylinder: 27 MN
2 cylinder: 54 MN
3 cylinder: 80 MN
Working pressure - at force 60 mn: 26.6 Mpa
Working pressure - upsetting force 75 mn: 30 Mpa
Cylinder diameter: 1,130 mm
Stroke: 2,500 mm
Vertical daylight: 6,150 mm
Pitch between columns - in working centerline: 5,000 mm
Pitch between columns - perpendicular: 2,500 mm
Internal width - inside columns with protection: 4,200 mm
Press height - at ground level: 13,370 mm
Press height - full height: 18,060 mm
Usable area - l x w: 3,000 x 9,180 mm
Speeds - approach speed: 300 mm/s
Speeds - return speed: 500 mm/s
