Product category:
Automatic and robotic welding systems
News Release from: Cloos UK | Subject: Welding robot
Edited by the Manufacturingtalk Editorial
Team on 20 January 2005
Large robot welds 8-tonnes excavator
arms
Large robot welding system with an order value of approximately EUR 1.5 million has been installed in the Belgian plant of a global manufacturer of construction machinery.
Messrs Carl Cloos Schweisstechnik in Haiger, Germany, have supplied a large robot welding system with an order value of approximately EUR 1.5 million to the Belgian subsidiary of a global manufacturer of construction machinery The special welding system, which is 16m long and 12m high, is used in the production of different sizes of large excavator arms which can weigh up to 8t
This article was originally published on Manufacturingtalk on 16 May 2003 at 8.00am (UK)
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Cloos as single source supplier of robotic welding technology supplied all system components.
The main feature of the welding system is the workpiece positioner which has a central tilting axis: the freely programmable 150kN manipulator has an adjustment radius of +/-30 deg, which enables optimum welding of the seams on excavator arms which are 6 to 8m long.
The deep heat penetration required for component safety is also best achieved by this design.
An industrial robot from the new Romat generation operates in inverted position and with 11 external axes consisting of a 12m linear track and vertical and transverse carriages provides good accessibility to the large components.
The new 600A high-capacity pulsed arc welding machines in the Quinto range supply the relevant welding technology.
Because the material is so thick, it is sometimes necessary to apply up to 15 welding layers per weld seam.
To achieve efficient production an automatic torch change system is used both for the M (MIG-CO2) single wire process and also the tandem wire high-capacity process with its outstanding features of high weld speeds, an excellent gap bridging ability and high weld quality.
A touch sensor guarantees automatic compensation of the different weld seam volumes.
The arc time for welding one of these giant excavator arms is about 16 hours.
Photo: Giant excavator arms manufactured by the Belgian construction machinery industry and weighing up to 8 t are welded on the new large Cloos robot welding system.
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