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Project information

Surface treatment line with CALDAN overhead conveyor
End user:
LIEBHERR Transportation Systems
Installation site locations – 2007 / 2022:
Germany / Bulgaria
Type of parts to be handled:
Mixing drums and frames
Dimensions of parts (L x W x H):
max. 2,500 x 2,000 x 6,000 mm
Weight of parts (work load):
Mixing drums 3,000 kg / Frames 1,500 kg
Cycle time (transport plus processing time):
23 min per wagon
Conveyor speed:
– 1-3 m/min, Process, variable
– 3-4 m/min, Power & Free, variable
Loading and unloading of parts:
via LIEBHERR lift and alignment station
Rotation of the workpieces:
motorized at standstill
Process temperatures:  max. 80°C


P&F420 – Power & Free overhead conveyor
Chain type: Cardan chain

Wagon design:

16-wheeled, 11 wagons in the system
Length load bar: 2000 mm

110 m

Additional information:
The P&F420 system was first installed in southern Germany
in 2007. After 15 years in use, CALDAN was commissioned to relocate the complete system to LIEBHERR’s production site
in Bulgaria.

PROJECT: surface treatment of mixing drums & frames  

P&F420 – Power & Free overhead conveyor in operation @ LIEBHERR Transportation Systems

CALDAN Conveyor A/S • Roeddikvej 91 • DK-8464 Galten • DENMARK • Tel. +45 8694 7071 • Mail. cc(at)

Part of Axel Johnson International AB