
The BMI B5_R range is a vacuum purge furnace for low-temperature heat treatments.
These furnaces are particularly well suited to inert gas convection treatments after vacuum purge such as: tempering, annealing, ageing, stress relieving…
B5_R benefits :
- Compact design
- Reduced cycle times
- Low energy consumption
- Reduced investments and operating costs
- Excellent uniformity in temperature
- Perfect surface integrity of parts
The B5_R tempering furnace is often the perfect supplement to the B8_T vacuum hardening furnace. These two furnaces together cover the main heat treatments at low and high temperatures as well as the most common thermochemical treatments.
Available options on BMI's tempering furnace:
- ALLNIT® Low-Pressure Nitriding thermochemical treatment
- ALLNIT-OX® post-oxidation process
- Nitriding potential control and regulation (KN probe)
- Nitrocarburizing process
- High temperature treatment under convection (up to 900°C)
- *COOL PLUS* cryogenic process
- B5_R Twin design: two tempering furnaces working simultaneously on one pumping group to reduce energy and maintenance costs
Technical Details

450 x 450 x 600 mm – 1000 x 1000 x 1800 mm

200 – 2000 kg

Mineral wool with stainless steel / Inconel / CFC

10-2 mbar

Max 750°C, 900°C (option: B5_RHT)

GRAPHTIL® man-machine interface

Cooling pressure: 1,2 bar abs

ALLNIT® low-pressure nitriding

Heat Treatment Processes
- Tempering
- Annealing
- Ageing
- Stress relieving
- ALLNIT® low-pressure nitriding
- Nitrocarburizing
- *COOLPLUS* sub-zero treatment
A few references



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