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Les langues disponibles
DESCRIPTION OF FUNCTIONS
• Heating system → The hot air temperature is steplessly ajustable and electronically
controlled. The heat transmission occurs with optimum combina tion of all the
advantages of contact and hot air.
The flexible combi wedge contains three heating zones:
Drive/pressure roller
Welding direction
Material plasticising
with hot air
• Welding pressure → steplessly adjustable. The welding pressure is transmitted
via a toggle lever to the pressure rollers. The swivel head guarantees the
equalisation of the pressure to both welded sections (C and D) as well as on
a welded seam without test channel.
This allows T-joints to be welded easily. During the welding process the welding
pressure adjusts itself linearly to the change in material thickness of the
geomembrane liner.
Seam thickness reduction = A – B
A : Thickness of the upper and lower membrane
B : Thickness of the welded seam
C : Welded section 1
D : Welded section 2
E : Test channel
• Drive → double drive system, is steplessly adjustable and elec tron ically controlled.
The automatic control system with tachogenerator is designed in such a way,
that the adjusted welding speed remains constant independently of the load.
The power transmission to the drive/pressure rollers works through a planetary
gear.
Heating system cross sectional diagram
Hot air outlet
COMBI WEDGE
Contact heating
Cross sectional diagram of an overlap weld
Pinch roller
Upper geomembrane liner
Lower geomembrane liner
Guide roller
Pre-heating, drying
cleaning of the material
C
B
E
D
A
B
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