Comet
This compact, heavy-duty welding machine has been used and praised around the world. The Comet is a small powerhouse that was strategically designed for the demands of landfill sites, mines and tunnels. Its slim architecture enables welders to complete difficult projects with the utmost safety, comfort, and ease.
This hot-wedge plastic welding machine records and stores all parameters, making data transfer as easy as possible. Its lightweight design, digital display, and user-friendly controls make this welder a professional powerhouse. Various custom accessories are available to streamline performance and maintenance.

Features
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Slim Design
Compact design allows for easy and comfortable maneuvering
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Digital Display
Easy-to-read display of velocity and temperature
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Easy Control
Closed loop control of temperature and drive
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User-Friendly
Designed to reflect simplicity and easy functionality
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Videos
Leister COMET hot-wedge welding
The world's smallest hot-wedge welding machine (only 7.5 kg) with an integrated operating unit for civil engineering.
Leister COMET prayer welding
Yes we can! With the reliable Leister Comet, prayer welds are possible. In just a few minutes, you can convert a Comet for prayer welding with no extra accessories needed. With wedges sizes of up to 4 cartridges, you get perfect welding results with or without a test channel. Typical materials to be welded are HDPE, LDPE, PP, PVC-P.
Specifications
Technical Data
Attribute | Value | Unit |
---|---|---|
Voltage | 120 / 230 | V |
Power | 1850 / 1500 / 1200 | Hz |
Temperature | 176 - 788 | °F |
Max. overlap | 125 | mm |
Dimensions (L x W x H) | 12 x 10 x 10 | inches |
Speed | 2.6 - 10.5 | ft/min |
Weight | 17 | lbs |
Welding pressure | 100 - 1000 | N |
Weld seam width | 2 x 15, with test channel | inches |
Material thickness | 20 - 120 | mil |
Mark for conformity | ![]() |
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Protection Class I | ![]() |
Article No.
107.547 | COMET, with 50 mm wedge for PE, 230V / 1200W |
107.538 | COMET, with 70 mm wedge for PE, 230V / 1500W |
145.893 | COMET, with 95 mm wedge for PE, 230V / 1850W |
107.558 | COMET, with 50 mm wedge for PVC, 230V / 1200W |
107.553 | COMET, with 50 mm wedge for PE, 230V / 1200W |
107.539 | COMET, with 70 mm wedge for PE, 230V / 1500W |