Tempering furnaces for steel tempering and annealing
We design and build industrial tempering furnaces for tempering after hardening, stress-relief annealing and tempering dies and tools. The chamber is designed for highly uniform temperature from front to back.
Tempering furnaces built to last
Reliable, long-life equipment for demanding industrial use
Welded steel frame
A rigid, heat-resistant frame keeps the furnace stable, prevents distortion and keeps running costs down.
Kanthal A-1 coils
Heating elements made of Kanthal A-1 wire (rated up to 1400°C) sit in replaceable panels – you can swap them without removing the insulation.
Microprocessor PID control
A controller with 1°C setpoint resolution and a type K thermocouple hold the set temperature steadily.
Tempering furnaces – standard sizes
Standard configurations – we also build to your dimensions
| Volume | Chamber size [W × H × D mm] | Loading | Max. temperature [°C] | Power [kW] |
|---|---|---|---|---|
| 16 L | 200 × 200 × 400 | side door | 1100 | 2.5 |
| 24 L | 200 × 200 × 600 | side door | 1100 | 5 |
| 34 L | 200 × 200 × 850 | side door | 1100 | 6.5 |
| 48 L | 200 × 200 × 1200 | side door | 1100 | 10 |
| 73.5 L | 350 × 350 × 600 | side door | 1100 | 6 |
| 202.5 L | 450 × 900 × 500 | top-loading | 1100 | 7.5 |
* Need a different chamber size? Send us an enquiry for a custom design.
** A higher temperature range for annealing and soaking is available on request.
Where are tempering furnaces used?
Key industries that use our furnaces in production
Toolrooms and hardening shops
Tempering tool steels, dies, punches and milling cutters after hardening to relieve internal stresses.
Automotive
Heat treatment of suspension parts, gears, shafts and steering components that work under heavy loads.
Springs and precision parts
Stress-relief annealing and dimensional stabilisation of springs, bent parts and precision machine components.
Machinery and aerospace
Final heat treatment of critical steel parts that need precisely defined hardness and impact toughness.
Our tempering furnaces in practice
Examples of furnaces we have built, all with digital control
Unit on an elevated frame
A base that makes loading and operation on the shop floor easier
Inside the heating chamber
Replaceable fireclay panels and a well-sealed door. Chamber 350 × 350 × 600
Tempering furnace
Top-loading. Chamber 450 × 900 × 500
Inside a top-loading furnace
Lift-up lid, loaded with an overhead crane