Radial-cantilever automatic machine "ARK-4A" is designed for argon arc welding of circumferential and longitudinal seams in the horizontal plane with a tungsten electrode in argon of stainless, titanium and heat-resistant alloys
The "ARK-4A" consists of the following main components:
- Welding head “ASGV-4ARK” - attached to a movable carriage. Using the head, adjustment and working movements of the burner are carried out:
a) vertical installation movements of the torch in the setting mode and automatic maintenance of the specified arc gap value.
b) installation movements of the torch to the welded joint in the transverse direction in the setting mode.
c) installation movements of the wire feed tip relative to the torch vertically, in the transverse direction and setting it in the welding plane at the optimal angle.
d) turning the torch in the welding plane at an angle of +90 and then fixing it.
- The base is a prefabricated structure designed to install the machine in the position required for welding in a horizontal plane, as well as when using several welding stands or manipulators.
- Column is a welded structure with guides and a slider that can move along the guides along the column using a screw-nut system.
- Console – is a square profile beam with guides for moving a carriage with a drive and a welding head.
- Driven carriage – includes a welded carriage body and carriage drive. Designed for raising and lowering the console.
- Cabinet with electrical equipment.
- Gas-water-electrical distribution
- Duplicate remote control,
- Frame
- Gas block
- Power supply “VSVU-400”.
To install the console with the carriage and the welding head in the position required for welding, the machine has the following movement:
- columns around a vertical axis,
- console along the column,
-carriages with a welding head along the console.
For precise installation of the electrode on the joint being welded, the welding head has all the necessary adjustment movements.

Model features:
- High reliability of the design of the machine and all its components.
- Easy adaptation to the technological equipment existing at the enterprise.
- Increased resistance to external influences.