Geomembrane Welding Equipment
Hot-wedge liner seam welder
GeoCover reference GC-P0193
The welder joins overlapping thermoplastic sheets. Match the machine to the membrane polymer and thickness, power supply and required seam geometry. Confirm settings with a trial seam on the actual material.

Product characteristics
- Liner welding method
- Hot wedge
Technical data
Read each value with its model, unit and test condition. Where several configurations are shown, select the required grade when requesting a quote.
| Property | Value |
|---|---|
| Supply voltage | 220 V |
| Supply frequency | 50/60 Hz |
| Rated power | 800 W |
| Welding temperature range | 0–450 °C |
| Welding speed | 1 m/min |
| Weldable sheet thickness | 0.2–2.0 mm |
| Weld tracks and centre channel | 2 × 15 mm weld tracks; 15 mm interior channel |
| Net mass | 6 kg |
| Property | Value |
|---|---|
| Supply voltage | 220 or 230 V |
| Supply frequency | 50/60 Hz |
| Rated power | 1,800 W |
| Welding temperature range | 0–450 °C |
| Welding speed | 2 m/min |
| Weldable sheet thickness | 1.0–3.0 mm |
| Net mass | 11 kg |
| Property | Value |
|---|---|
| Supply voltage | 110 or 220 V |
| Rated power | 1,000 W |
| Supply frequency | 50/60 Hz |
| Temperature interval listed for H-A | 30–580 °C |
| Air flow rate | 180 L/min |
| Static pressure | 2,500 Pa (25 mbar) |
| Gross mass | 2 kg |
| Property | Value |
|---|---|
| Weldable sheet thickness across seam-welder configurations | 0.2–3.0 mm |
| Seam-welder welding temperature | 0–450 °C |
| Supply frequency | 50/60 Hz |
| Mass listed in general attributes | 11 kg; model unspecified |
| Colour options | Red or green |
| Transport case material | Aluminum alloy |
| Property | LST800 | LST800D | LST810 | LST820 |
|---|---|---|---|---|
| Rated voltage options | 230 / 120 V | 230 / 120 V | 230 / 120 V | 230 / 120 V |
| Supply frequency | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz |
| Rated power options | 800 / 1100 W | 800 / 1100 W | 800 / 1100 W | 800 / 1100 W |
| Welding speed | 0.5–5 m/min | 0.5–5 m/min | 1–5 m/min | 0.5–5 m/min |
| Heating temperature | 50–450 °C | 50–450 °C | 50–450 °C | 50–450 °C |
| Material thickness per layer | 0.2–1.5 mm | 0.2–1.5 mm | 0.2–1.5 mm | 0.2–1.5 mm |
| Weld tracks and central channel | 2 × 12.5 mm; 12 mm channel | 2 × 12.5 mm; 12 mm channel | 2 × 12.5 mm; 12 mm channel | 2 × 12.5 mm; 12 mm channel |
| Seam strength relative to parent material (test method unspecified) | ≥ 85 % | ≥ 85 % | ≥ 85 % | ≥ 85 % |
| Net weight | 5.0 kg | 5.0 kg | 5.5 kg | 6.0 kg |
| Overlap width | 10 cm | 10 cm | 15 cm | 20 cm |
| Digital display | Not specified | Indicated | Not specified | Not specified |
| Property | LST-GM1 | LST-GM2 |
|---|---|---|
| Rated voltage options | 230 / 120 V | 230 / 120 V |
| Supply frequency | 50 / 60 Hz | 50 / 60 Hz |
| Rated power options | 1400 W | 600 W |
| Welding speed | 0.5–6.0 m/min | 0.5–5.0 m/min |
| Heating temperature | 50–450 °C | 50–450 °C |
| Applied welding force | 100–1000 N | 100–1000 N |
| Material thickness per layer | 0.2–2.0 mm | 0.2–2.0 mm |
| Overlap width | 12 cm | 12 cm |
| Weld tracks and central channel | 2 × 15 mm; 15 mm channel | 2 × 15 mm; 15 mm channel |
| Seam strength relative to parent material (test method unspecified) | ≥ 85 % | ≥ 85 % |
| Net weight | 9.0 kg | 7.5 kg |
| Digital display | Temperature and speed | Temperature and speed |
| Property | LST700 |
|---|---|
| Rated voltage options | 230 / 120 V |
| Supply frequency | 50 / 60 Hz |
| Rated power options | 2800 / 2200 W |
| Welding speed | 0.5–3.5 m/min |
| Heating temperature | 50–620 °C |
| Applied welding force | 100–1000 N |
| Material thickness | 0.5–2.0 mm |
| Overlap width | 16 cm |
| Weld tracks and central channel | 2 × 15 mm; 15 mm channel |
| Seam strength relative to parent material (test method unspecified) | ≥ 85 % |
| Net weight | 7.5 kg |
| Digital display | Temperature and speed |
| Property | LST900 | LST900D |
|---|---|---|
| Rated voltage options | 230 / 120 V | 230 / 120 V |
| Supply frequency | 50 / 60 Hz | 50 / 60 Hz |
| Rated power options | 1800 / 1650 W | 1800 / 1650 W |
| Welding speed | 1–5 m/min | 1–5 m/min |
| Heating temperature | 50–450 °C | 50–450 °C |
| Applied welding force | 100–1000 N | 100–1000 N |
| Material thickness per layer | 1.0–3.0 mm | 1.0–3.0 mm |
| Overlap width | 12 cm | 12 cm |
| Weld tracks and central channel | 2 × 15 mm; 15 mm channel | 2 × 15 mm; 15 mm channel |
| Seam strength relative to parent material (test method unspecified) | ≥ 85 % | ≥ 85 % |
| Net weight | 13.0 kg | 13.0 kg |
| Digital display | Temperature | Temperature and speed |
Options in this range
These options describe the range. Specify the required configuration when requesting a quote.
- Welding temperature range
- 0–450 °C
- Supply frequency
- 50/60 Hz
- Colour options
- Green

