Manufacturer of industrial furnaces for the heat treatment of metals under protective gas atmosphere since 1924.
SOLO Swiss SA
Porrentruy (CH) · Guangzhou (CN)New on Amplifa
About SOLO Swiss
SOLO Swiss SA is a Swiss manufacturer of industrial furnaces for the heat treatment of metals, headquartered in Porrentruy in the canton of Jura. Founded in 1924, the company manufactures protective gas furnaces, bell furnaces, chamber furnaces, continuous furnaces, conveyor belt furnaces, retort furnaces, tilting furnaces and belt furnaces for processes such as hardening, tempering, carburizing, carbonitriding, nitriding, nitrocarburizing, annealing, brazing, sintering and austempering. Production takes place in Porrentruy for the European and international markets and in Guangzhou (China) for the Chinese market. Since 1924, more than 20,000 SOLO® furnaces have been in operation worldwide. Customer industries include automotive, aerospace, the watch industry, medical technology as well as the coin, medal and needle industry. In addition, SOLO Swiss offers worldwide service, maintenance, retrofit, spare parts, furnace calibration and metallurgical consulting.
- Site
- Porrentruy
- Processes
- Heat treatment of metals (general), Tempering, Hardening (neutral hardening, quenching), Carburizing, Carbonitriding, Nitriding, Nitrocarburizing, Oxynitriding
- Materials
- Alloy steel (bells, channels as spare parts), Alloy steel, Protective gas atmosphere
- Certificates
- Certified by SGS
- Founded
- 1924
- Employees
- 51–200
- Industries
- Automotive, Aerospace, Watch industry, Medical technology, Coins & Medals, Needle industry
- 01
Engineering and design
- 02
Furnace manufacturing in Porrentruy / Guangzhou
- 03
Assembly and calibration
- 04
Worldwide delivery
- 05
Service, maintenance, retrofit and spare parts
Processes and Furnace Types
Alloy steel
Used for spare parts such as bells and channels of the furnaces.
Protective gas atmosphere
The basis of the heat treatment processes in the SOLO furnaces.
Sites
Porrentruy
CHHeadquarters and production for European and international markets
- Materials
- Alloy steel (spare parts)
- ProfiTherm bell furnace
- Continuous quenching furnace 302 (mesh belt)
- Conveyor belt furnace Series 322
- Retort furnace Solo Turbined
- Tilting furnace Solo Tilting
- Belt furnace Solo Belt
- Chamber furnaces ProfiTherm 300 (modular batch lines)
Guangzhou
CNProduction for the Chinese market
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Heat treatment of metals (general)Heat treatment | – | – | – | – | Metals |
| TemperingHeat treatment | – | – | – | – | – |
| Hardening (neutral hardening, quenching)Heat treatment | – | – | – | – | – |
| CarburizingHeat treatment | – | – | – | – | – |
| CarbonitridingHeat treatment | – | – | – | – | – |
| NitridingHeat treatment | – | – | – | – | – |
| NitrocarburizingHeat treatment | – | – | – | – | – |
| OxynitridingHeat treatment | – | – | – | – | – |
| Tempering (Anlassen)Heat treatment | – | – | – | – | – |
| AnnealingHeat treatment | – | – | – | – | – |
| BrazingJoining | – | – | – | – | – |
| SinteringHeat treatment | – | – | – | – | – |
| AustemperingHeat treatment | – | – | – | – | – |
| Protective gas atmosphere heat treatmentHeat treatment | – | – | – | – | – |
| Furnace calibration, retrofit, maintenance, CQI-9/AMS 2750 complianceTesting | – | – | – | – | – |
| Metallurgy consulting: heat treatment, materials, atmospheres (tests, expertise, training)Engineering | – | – | – | – | – |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Bell furnace | SOLO Swiss ProfiTherm | – | – | – | Porrentruy, CH |
| Continuous quenching furnace with mesh belt (Mesh Belt Quenching Furnace) | SOLO Swiss 302 | – | – | – | Porrentruy, CH |
| Conveyor belt furnace / mesh belt continuous furnace (Conveyor Mesh Belt Furnace) | SOLO Swiss 322 Series | – | – | – | Porrentruy, CH |
| Retort furnace | SOLO Swiss Solo Turbined | – | – | – | Porrentruy, CH |
| Tilting furnace | SOLO Swiss Solo Tilting | – | – | – | Porrentruy, CH |
| Belt furnace | SOLO Swiss Solo Belt | – | – | – | Porrentruy, CH |
| Standard furnaces | Borel Swiss | – | – | – | Porrentruy, CH |
| Chamber furnace (Batch Furnace, modular batch lines) | SOLO Swiss ProfiTherm 300 | – | – | – | Porrentruy, CH |
Additional services
Quality
SOLO Swiss is certified by SGS and supports the compliance of its installations with international standards such as CQI-9 and AMS 2750, including furnace calibration and on-site risk analyses.
| Evidence | Porrentruy |
|---|---|
| Certified by SGS |
History
- 1924
Foundation of SOLO Swiss SA; since then, manufacturing of industrial furnaces for the heat treatment of metals.
Since 1924, more than 20,000 SOLO® furnaces have been in operation worldwide.
- 2026
Trade fair participation with Gasbarre Thermal at Furnaces North America in Indianapolis (Booth #401) to develop the North American market for ProfiTherm®; presence at the HärtereiKongress in Cologne (Booth D-030).