LEISTER | TWINNY T7 Hot Wedge Welding Machine

SKU LEI164.198


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If you want to weld thin or thick geo-membranes (0.5 to 2.5 mm) 20-100 mils quickly, easily and safely, the TWINNY T7 is your go-to automatic welder.

The TWINNY T7 is well-rounded, thanks to its 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 T7


  1. Multifunctional display for setting and monitoring speed, temperature and air volume
  2. Voltage display
  3. Wireless connection, GPS, integrated LQS, connection to myLeister app
  4. 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 T7 welds 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 T7 is durable and easy to service


Additional information

Frequency (Hz)

50 – 60

Power (W)


Voltage (V)

220 – 240

Air Temperature (°C)


Blower Speed (rpm)

Maintenance free Brushless Motor max.18000

Air Volume (%)


Max overlap (mm)


Max Welding pressure (N)


Drive Speed (m/min)

0.8 – 8



Digital Voltage display


Audible / Visual Alarms


Welding pressure overload protection

Visual and acoustical warning

Size (L × B × H) (mm)

350 x 360 x 260

Weight (kg)


Conformity mark


Product Video 1

Product Video 2

Scope Of Delivery

  1. Machine
  2. transport case
  3. cleaning brush
  4. Instruction manual
  5. spare fuses


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