Leister TWINNY T7

  • Multifunctional display for setting and monitoring speed, temperature and air volume
  • Voltage display
  • Wireless connection, GPS, integrated LQS, connection to myLeister app
  • 100 % increase in welding speed over TWINNY T, with a brushless blower motor


  • quick: drive speed of 0.8 to 8 meters/minute
  • powerful: 3300 watts, enabling more heating power
  • intuitive: easy-to-use display and intuitive user controls
  • documented: TWINNY T7 thanks to LQS, records all welding parameters
  • versatile: TWINNY T5 and T7 weld almost all plastic membranes from 0.5 - 2.5 mm or 20-100 mils
  • dry and clean: the hot air dries moisture in no time at all, while dust and sand are blown away
  • brushless blower motor: significantly greater air volume
  • sustainable: TWINNY T5 and T7 are durable and easy to service


If you want to weld thin or thick geomembranes (0.5 to 2.5 mm) 20-100 mils quickly, easily and safely, the TWINNY T7 or TWINNY T5 are your go-to automatic welders. Both tools are well-rounded, thanks to their practical design and intuitive operation. The  TWINNY T7 comes equipped with highly-efficient data recording ability thanks to the LQS function, GPS, Wi-Fi and connection to the myLeister app. are guaranteed. Switch on and start welding – TWINNY T7and T5.

Technical Data

DetailsTWINNY T7 / 230V / 3450W / combi wedge long / with test channel / 50 mm / sharp / Field kit / CEE blue plug++

Article No. *164.198*

Attribute Unit Value
Voltage V~ 230
Frequency Hz 50/60
Power W 3450
Air temperature °C 560
Blower speed rpm Maintenance free Brushless Motor max.18000
Air volume % 45-100
Max. overlap mm 125
Max. welding force N 1000
Drive Speed m/min 0.8-8
LQS, WiFi, GPS   Yes
Digital Pressure display   Yes
Digital Voltage display   Yes
Audible / Visual Alarms   Yes
Welding pressure overload protection   Visual and acoustical warning
Size (L × B × H) mm 350 x 360 x 260
Weight kg 10.5
Conformity mark   CE Certification
Protection class I   Protection Class I

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