Engine head welding furnaces for preheating and stress relief
Our engine head welding furnaces preheat aluminium and cast iron cylinder heads and engine blocks before TIG or gas welding, then cool them down in a controlled way afterwards. This prevents thermal shock and greatly reduces the risk of cracks coming back after the repair.
Engine head welding furnaces built for the welder
Designed for comfortable welding and long-lasting repairs
Protection against cracking
Heating the whole casting evenly to the right temperature relieves stress and prevents shrinkage cracks during welding.
Hinged top lid
The top-opening design lets you build up and weld damaged areas without taking the hot casting out of the chamber.
Controlled cooling ramp
A Novus digital PID controller lets you program slow cooling after welding, which prevents hard, brittle zones in the weld.
Engine head welding furnaces – specifications
| Chamber size [W × H × D mm] | Loading / access | Max. temp. [°C] | Power [kW] |
|---|---|---|---|
| 350 × 350 × 850 | Hinged lid / top-loading | 650°C / 900°C (optional) | 6.0 kW |
* Dust-free insulation: High-quality ceramic fibre blanket and hardened boards keep dust out of the welding area.
* Reinforced hearth: A durable fireclay floor or steel grate for stable, safe positioning of heavy castings.
Where are engine head welding furnaces used?
Essential equipment for engine machine shops and reconditioning plants
Aluminium cylinder head repair
Welding missing material, corrosion pits and cracks between valve seats in car and van cylinder heads.
Cast iron block welding
High-temperature preheating required when repairing grey and ductile iron castings.
Engine shops and repair workshops
A higher standard of work and far fewer comebacks caused by cracked welds.
Heavy machinery and agriculture
Reliable preheating of large castings from construction machinery and tractor engines.
Our engine head welding furnaces in practice
Examples of furnaces we have built, all with digital control
Cylinder head preheating furnace
Compact model with a hinged lid for easy TIG welding
Chamber with Kanthal A-1 elements
Dust-free ceramic insulation and a reinforced hearth
Dedicated station for engine shops
Built to preheat complete engine blocks