LIEBHERR LC 502 Year 1991/2011 Retrofit Machine

Machine data – Liebherr LC 502 CNC

General technical data

Controls: SIEMENS 840 D sl

Nominal workpiece diameter 500 mm

Maximum module 10 mm

Table diameter 400 mm

Tangential path 200 mm

Axial path 400 mm

Maximum table load 50000 N

Machine weight 9800 kg

Machine dimensions L x W x H 48 x 34 x 25 m

Maximum swivel angle ± 50°

Technical data – tool head cross slide

Designation of the head Motorized tool head

Cutter diameter 170 mm

Maximum cutter length 230 mm

Speed range of the tool 48 - 480 rpm infinitely variable

Technical data – electrical system

Operating voltage 380 V

Auxiliary voltage 220 V

Frequency 50 Hz

Maximum rated current 80 A

Fuses on the supply line 100 A

Maximum power consumption 55 kVA

The expenses for the retrofit on controls, drives and connections exceed the amount of 100,000 EURO by far.

General overhaul (retrofit) in the year 2011

The following components were replaced with brand-new parts

The complete electrical cabinet (with new Siemens drives)

The CNC control system

The entire wiring

The axis motors

The control panel of the loader

A large part of the hydraulic system

The cooling system

All safety devices newly installed according to the highest CE standards

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