LEISTER - UNIDRIVE 500 (40 mm) | Compact Automatic Welder

✔ 2-in-1: Manual & automatic welding in one device
✔ Powerful (2400 W) at only 4.5 kg – ideal for mobile use
✔ Dual drive for fast, uniform welds
✔ Adjustable temperature (100–580 °C) & speed up to 4.5 m/min
✔ Maintenance-free thanks to brushless motor

Compact semi-automatic welder for professionals

The LEISTER UNIDRIVE 500, 40 mm, 220–240V / 2400W is the perfect solution for roofers who want to combine flexibility, performance, and precision in one device. As a compact semi-automatic welder, it combines manual welding and automated work – ideal for versatile use on the construction site.

Whether for small roof areas, connections, or detailed areas: with the UNIDRIVE 500, you work faster, cleaner, and significantly more efficiently.

Use in daily professional life

Specialized use: welding, sealing, detailed work

The UNIDRIVE 500 was developed specifically for welding thermoplastic roofing membranes such as PVC and TPO. Thanks to its dual drive and compact design, it is perfect for jobs where large automatic machines reach their limits.

👉 Ideal for precise work directly on the component.

Typical applications

• Flat roofs: Small to medium roof areas
• Connection areas: parapets, skylights, penetrations
• Terraces & balconies: Precise sealing work
• Roof renovation & new construction: Flexible use wherever manual work is required

Technical Details

• Model: UNIDRIVE 500
• Voltage: 220–240 V
• Power: 2400 W
• Working width: 40 mm
• Temperature: 100 – 580 °C (adjustable)
• Speed: up to 4.5 m/min
• Weight: 4.5 kg
• Motor: Brushless (maintenance-free)
• Drive: Dual drive

Your advantages at a glance

Efficiency through dual drive
Faster work than with conventional hand-held welding devices – for more productivity in roofing supplies.

Consistent weld quality
Sensor monitoring ensures consistent parameters – even with fluctuating voltage.

Flexible & compact
Perfect for tight spaces and detailed work – where large automatic machines cannot be used.

Ergonomic & lightweight
Weighing only 4.5 kg, it is comfortable to handle – even during longer operations.

Why you need this device in your daily work

The LEISTER UNIDRIVE 500 bridges the gap between manual and automatic welding. You work faster than by hand, but remain maximally flexible – a real advantage in modern roofing.

An indispensable roofer's tool – for precise, efficient and durable waterproofing.

👉 Order now from Roofify and take your welding work to a new level.