Description
Precision foam cutting at the bench. The Proxxon THERMOCUT 650 is a mains-powered hot wire cutter with a continuously variable wire temperature from 100–350°C — a wider range than the THERMOCUT 115/E — and a fine 0.2mm (0.008") cutting wire for clean, precise cuts through Styrofoam board without crumbling, tearing, or the dust of mechanical cutting. Designed for architects, designers, artists, and model makers who need repeatable, controlled cuts in a bench setting.
Key Specifications
- Power: 110–120V AC, 50/60 Hz, 50W
- Secondary voltage: Max 40V at 1.2A
- Wire temperature: 210–660°F (100–350°C) — continuously variable
- Wire diameter: 0.2mm (0.008") — fine wire for precise cuts
- Insulation class: Class 2
- Weight: 850g (1.9 lb)
- Part No.: 37084
Applications
- Architecture: Cutting foam board for scale models, site models, and massing studies
- Model making: Railroad, aviation, and marine scenery and structures
- Prototyping & design: Concept models, product mockups, and display props
- Insulation work: Precise shaping of construction foam insulation board
- Art & education: Sculpture, classroom projects, and decorative installations
THERMOCUT 650 vs. Other THERMOCUT Models
- THERMOCUT 650 (No. 37084): 110V mains, 100–350°C range, 0.2mm fine wire, 50W. Widest temperature range of the mains-powered models — best for precision bench cutting across a broad range of foam densities.
- THERMOCUT 115/E (No. 37080): 110V mains, 100–200°C range, 3kg bench unit. Best for straightforward cuts in a fixed studio or classroom.
- THERMOCUT 12/E (No. 27082): 12V DC, 150–350°C, 5 shapeable wires. Best for freehand and complex profile cutting.
Frequently Asked Questions
What's the advantage of the 0.2mm wire?
A finer wire produces a narrower kerf and cleaner cut edge — important for architectural models and precision work where cut accuracy matters. Thicker wires remove more material and can leave a rougher edge.
Is the temperature continuously variable or stepped?
Continuously variable between 100–350°C, allowing precise tuning for different foam densities and cutting speeds.
Does it produce fumes?
Yes — cutting thermoplastics produces fumes. Always use the THERMOCUT 650 in a well-ventilated area. See the Prop 65 warning below for California residents.
Works Well With
- Proxxon Hot Wire Cutter THERMOCUT 115/E (No. 37080) — mains-powered companion model
- Proxxon Hot Wire Cutter THERMOCUT 12/E (No. 27082) — 12V freehand model with shapeable wires
- Spare Cutting Wire for THERMOCUT 12/E — replacement wires (check compatibility with 650)
Returns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. Please see our return and refund policy here.
California Residents Prop 65 Information


