Eccentric press

GEORG PEE 400

The machine was completely overhauled in 2007!

The following modifications were carried out on the single-column eccentric press PEE 400:

Conversion of the press drive to a variable drive with 15–45 strokes of the ram
Conversion of the clutch and brake system to a pneumatically operated Ortlinghaus clutch-brake combination
Adaptation of the pinion shaft, flywheel, and bearing cover to the pneumatically operated clutch-brake combinations
Replacement of the roller bearings for the pinion shaft and flywheel support
Replacement of all sealing elements and wear parts for the drive
Replacement of the seals for the compensation cylinder
Replacement of V-belts for the flywheel drive
Replacement of the entire electrical control system
Travel measurement for ram adjustment
Modification of the safety device
Installation of tie rods to reduce frame flex under pressing force
Renewal of the worm wheel for ram adjustment, pressure spindle, spindle nut, and thrust ring
Reworking of ram guide rails
Replacement of the breaking plate and its support
Hydraulics
Pneumatics
Lubrication
Hydraulic draw cushion in the press table
Tool support arms for mounting press tools
Tool lifting bars in the table

TECHNICAL DETAILS

Press force: 4,000 kN
Adjustable stroke range: 30–180 mm
Adjustable strokes per minute in continuous operation: 15–45 rpm
Ram adjustment: 150 mm
Throat depth: 500 mm

Ram surface (width × depth): 1,200 × 800 mm
Table surface (width × depth): 1,600 × 1,000 mm
Maximum distance between table and ram surface: 625 mm

MACHINE DETAILS

Control system: Siemens S7-300

Motor power: 55 kW
Motor speed: 1,500 rpm

Hydraulic draw cushion
Piston diameter: 110 mm
Piston rod diameter: 90 mm
Effective piston area: 95 cm²
Draw cushion diameter: 230 mm
Adjustable counterforce: 10–250 kN
Usable draw cushion stroke: 90 mm
Draw cushion extension speed: max. 65 mm/s

Hydraulic system
Output of draw cushion pump: 29 l/min
Drive power of main pump: 7.5 kW
Oil capacity in reservoir: 250 l
Output of circulation pump: 65 l/min
Drive power of circulation pump: 1.5 kW

Operating pressure for clutch and brake: 5 bar
Operating pressure for ram weight compensation: 5 bar

Total machine weight: 28,000 kg