BAK LarOn 21 - High Speed Automatic Welding Machine

The BAK LarOn 21 High-Speed Automatic Welding Machine is an automatic hot-air welder designed for thermoplastic roofing membranes. It delivers continuous, high-speed welding up to a 2.1″ (54 mm) weld width, making it effective for larger seam runs and production-level welding.

This unit features stepless control of speed and temperature, a direct drive system, and an automatic start function. It is built to provide consistent, reliable welds on membranes such as TPO, PVC, and other compatible thermoplastic materials.

Key Features

• Automatic hot-air welding machine for thermoplastic roofing membranes (TPO, PVC)
• Up to 2.1 In. (54 mm) weld width
• Stepless adjustable welding speed
• Stepless adjustable temperature control
• Direct drive with automatic start function
• Designed for continuous high-speed seam welding
• Suitable for production-level welding tasks

Weld Width: 54 mm (2.1″)

Voltage: 230 V AC

Frequency: 50/60 Hz

Power Consumption: 3400 W (max)

Temperature Range: 68 – 1112 °F (20 – 600 °C)

Air Flow (Max @ 68 °F): ~700 L/min

Welding Speed Range: ~16 – 98 ft/min (5 – 30 m/min)

Machine Weight: ~44 lbs (20 kg)

Protection Class: IP20

Dimensions: ~22.8″ length x 10.2″ width x 12.6″ height

Outer Material: Steel & industrial grade components

Q: Can the LarOn 21 handle welds on wide seam runs?
A: Yes. With its 2.1″ (54 mm) weld width and high-speed capability, it is suited for larger continuous seam applications.

Q: Is the welding speed adjustable for different workflow needs?
A: Yes. The LarOn 21 allows stepless adjustment of welding speed to match material type and installation pace.

Q: Does this machine support stepless temperature control?
A: Yes. Temperature can be adjusted across a broad range to suit different thermoplastic materials and conditions.