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OPERATING INSTRUCTIONS
GB
LEISTER Astro
Automatic Wedge Welding Machine
Please read operating instructions carefully before use
and keep it for further reference.
APPLICATION
The LEISTER Astro is an automatic wedge-welding machine for overlap
welding of geomembrane liners in earthwork and civil engineering.
• Thermoplastic geomembrane liners
High-density polyethylene
Low density polyethylene
Chlorinated polyethylene
Polypropylene
DVS: German Welding Society for welding
LEISTER SALES & SERVICE CENTER CHINA , 20H Building No.1 515 Yishan Road ,Shanghai, PRC
LEISTER Process Technologies, Riedstrasse, CH-6060 Sarnen / Switzerland
Tel. +86 021 34141786 Fax. +86 021 64360767
Tel. + 41 41 662 74 74
http://www.plasticwelding.cn
PE-HD
PE-LD
PE-C
PP
Fax + 41 41 662 74 16
E-mail: leister@plasticwelding.cn
• Type of seam
Welding seams are pro-
duced in accordance with
DVS 2225 part I
Other dimensions are pos-
sible on request.
www.leister.com
®
sales@leister.com
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Summary of Contents for Leister Astro
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Page 1: Operating Instructions
DVS: German Welding Society for welding LEISTER SALES & SERVICE CENTER CHINA , 20H Building No.1 515 Yishan Road ,Shanghai, PRC LEISTER Process Technologies, Riedstrasse, CH-6060 Sarnen / Switzerland Tel. +86 021 34141786 Fax. +86 021 64360767 www.leister.com... - Page 2 WARNING Danger ! Unplug the tool before opening it as live com- ponents and connections are exposed. Incorrect use of the hot wedge tool can present a fire and explosion hazard especially near combustible materials and explosive gases. Do not touch the element housing and wedge when hot as they can cause burns.
- Page 3 FUNCTIONAL DESCRIPTION LEISTER Astro • Heating system → The hot air temperature is steplessly adjustable and eletron- ically controlled. It is a floating hot wedge. Cross-section diagram of hot wedge system Pinch roller upper geomem- brane liner Upper drive /...
- Page 4 DESCRIPTION OF MACHINE LEISTER Astro Frontal view Side view 25 16...
- Page 5 DESCRIPTION OF MACHINE LEISTER Astro 1. Mains cable 14. Back wheel 2. Cable clip 15. Foil guide 3. Housing of electronics 16. Cable conduit for hot wedge 4. Main switch 17. Pinch roller 5. Display 18. Front guide roller 6. Keyboard 19.
- Page 6 WELDING PARAMETERS LEISTER Astro Welding temperature – Set the welding temperature with the keys. The temperature is dependent on the material and the ambient temperature. The in-put SET value will be shown on the display. Switch on the heating by pressing the keys simultaneously.
- Page 7 WELDING LEISTER Astro Operating conditions • Connect the hot wedge-welding machine to the mains • Start the machine with Main- or Control Level Main – Level Main Switch (4) ON 1. Speed ACTUAL value 2. Speed SET value 3. Temperature ACTUAL value 4.
- Page 8 WELDING LEISTER Astro Welding procedure • Check: – Drive/ Pressure rollers (20/21) as well as the hot wedge (8) must be clean before engaging into the geomembrane liner or film. – Cable length/Cable guide. • Guide and position the automatic welding machine into the over-lapped geomembrane liner or film.
- Page 9 ADJUSTING THE HOT WEDGE LEISTER Astro Adjusting of the guide rollers for the requested material thickness • Engage the automatic wedge-welding machine on the geomembrane liner or film to be welded. • Stretch the lever (9) • Loosen the hexagon cap screw of the rear guide roller (19).
- Page 10 CHANGEOVER OF UPPER DRIVE/PRESSURE ROLLER LEISTER Astro The LEISTER Astro is suitable to manufacture overlap-welded seams in different fields of applications. They differ in the width of the welded seam as well as the width of the test channel. Also welded seams without test channel can be manufactured.
- Page 11 CHANGEOVER OF LOWER DRIVE/PRESSURE ROLLER LEISTER Astro 1. Countersunk screw M5×16 2. Clamp disk 3. Drive/Pressure roller 4. Distance disk 20×32×0.5 Dismantling of the drive/pressure rollers, sequence 1 – 4 Assembly of the drive/pressure rollers, reverse 4 – 1...
- Page 12 Technical data and specifications are subject to change without prior notice. Your authorized Service Centre is: LEISTER SALES & SERVICE CENTER CHINA , 20H Building No.1 515 Yishan Road ,Shanghai, PRC LEISTER Process Technologies, Riedstrasse, CH-6060 Sarnen / Switzerland Tel. +86 021 34141786 Fax. +86 021 64360767 www.leister.com...