LORENZ
Coil end welding machines

Type Strip width mm   Strip thickness mm   Shear angle Strip take-off Strip widths mm
  min. max. min. max. (°)    
BS2 10 2020 0,2 2 3 BA 100 200, 400, 600, 800,  1000, 1200, 1400, 1600,  1800, 2000
BS4 10 2020 0,5 4 3 BA 120 200, 400, 600, 800,  1000, 1200, 1400, 1600,  1800, 2000
BS6 20 2020 0,5 6 3 BA 160 200, 400, 600, 800,  1000, 1200, 1400, 1600,  1800, 2000
BS8 20 2020 1,0 8 3 BA 180 400, 600, 800, 1000, 1200, 1500

General description

The coil end welding machine makes it possible to join the end of the coil to a new coil. Both the end of the belt and the beginning of the belt can be cut to size. The welding process is automatic.

 


Double-cut shears

The hydraulically operated double-cut shears are used to trim both ends of the belt

 


Tensioning device

The tensioning device clamps the belt securely during the welding process.

 


Welding device

The welding device is moved automatically over the belt. The distance of the welding nozzle is set manually.

 


Belt side guide

A belt side guide fitted directly after the welding device has the task of aligning the belt in the middle and bringing it into a horizontal position. This is done using horizontal and vertical rollers that are hardened. The adjustment is carried out manually via an adjusting spindle with handwheel and is displayed digitally. An off-center adjustment of +/- 25 mm is integrated into the lateral guide.

 


Lifting rollers

Hydraulically/pneumatically operated lifting rollers lift the belt from the table in automatic mode.

 


Driver

The driver is equipped with 2 rollers, whereby the upper roller is driven by a three-phase motor. The upper roller is fed pneumatically/hydraulically with pressure control. It is necessary to regulate the contact pressure in order to take into account the different material thicknesses.
If a thin material is subjected to the same contact pressure as a thick one, warping may occur

 


Punching bracket

A punching bracket at the outlet of the machine allows a hole to be made for weld seam detection.