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Sheet Welding Machines

ST 225 / 325 / 425

The ultimate efficiency - for sheet thickness 3 up to 25 mm

Features:

  • Patented mechanical synchronization of the working tables; a novelty to achieve a homogeneous application of pressure in the weld seam area
  • Process forces regulated via proportional valve
  • Siemens S7 control system with 5.7" full graphics touch screen
  • Machine design based on a sturdy welded framework construction. All of the machine's components are matched to the relevant load case to ensure the top quality welding of plastics
  • Welding tables in composite construction to eliminate torsion stresses and provide stiffness
  • Pneumatics equipped with maintenance friendly valve clusters of the latest generation
  • Integrated and highly dynamic electronic heating element temperature control
  • Flexibility to end or stop the process times during the welding cycle
  • Robust and in the clamping bar integrated non-rotating clamping feet
  • High quantity of decoupled and anti-twist protected clamping feet in order to match perfectly to each sheet length
  • Highly flexible suspension of clamping feet for secure fixation of sheet adjacent to the welding area
  • Interpretation of the max. machines forces on an 8 bar compressed air supply
  • Ergonomic cleaning position for the heating sword
  • Ergonomic working table height

Range of Application:

Range of Application Manufacture of reservoirs, tanks and containers, manufacture of plastic apparatus, pipeline construction, ventilation systems, serial welding, water treatment systems, scrubbers, environmental technology, swimming pools, transport and logistics

patented mechanical, synchronized parallel movement of the working tables

control system with 5.7" full graphics touch screen

Technical Data:

ST 225 ST 325 ST 425
Machine length (mm): 3,550 4,550 5,550
Machine width (mm): 800 800 800
Machine height (mm): 1,100 1,100 1,100
Total weigth approx. (kg) **: 2,150 2,700 3,300
Maximum working width (mm): 2,050 3,050 4,050
       
Sheet Thickness to be welded (mm):      
PE (0.15 N/mm²) 3 to 25 3 to 25 3 to 25
PP (0.10 N/mm²) 3 to 25 3 to 25 3 to 25
PVDF (0.10 N/mm²)  3 to 25 3 to 25 3 to 25
PVC-C bei 8 bar (0.5 N/mm²)  3 to 7.50 3 to 7.50 3 to 7.50
PVC-U bei 8 bar (0.6 N/mm²)  3 to 6.25 3 to 6.25 3 to 6.25
       
Min. channel cross section inside dimension (W x H in mm) *: 270 x 250 270 x 250 270 x 250
Min. cylinder diameter (mm)*: 350 350 350
Power supply standard: 230 V 1/N/PE 50/60 Hz Hz Hz  
Power supply with option height adjustable clamping beams: 230/400V 3/N/PE 50/60 Hz
Power consumption standard (kW): 2.5 3.5 4.5
Power consumption with option height adjustable clamping beams (kW): 4.5 6.5 8.5
Compressed air connection (bar): 8 8 8
Clamping force (at 8 bar in kN): 15.4 28 37.5
       
Welding Force:      
Min. Table force (N): 600 700 700
Max. Table force (at 8 bar in kN): 7.7 11.5 15.5
Heating element standard Teflon coated
T max = 260° C (W x H in mm):
15 x 50 15 x 50 15 x 50
Heating element with option height adjustable clamping beams Teflon coated,
T max = 260° C (B x H in mm):
20 x 80 20 x 80 20 x 80

* Option height adjustable clamping beam, sizes only valid for lower clamping beam position
** incl. Extension Arms

Options

  • Height adjustable clamping beams - two steps to process sheet thicknesses < 25 mm (PE/PP); twin-wall-sheets up to 58 mm
  • Extension arms
  • Automatic locking of clamping beams
  • Material property dataset (parameter) with automated choice of specific welding pressure, temperature and times

Do you have any questions concerning this product