Manufacturer of precision springs, stamped and bent parts, and contact elements for the automotive, industrial, and medical technology sectors.
BAUMANN Springs Ltd. / BAUMANN Federn AG
Ermenswil (HQ) · Lichtenstein · Karviná · Legutiano · Grand Prairie · Singapore · Shanghai · León · ChangshuNew on Amplifa
About BAUMANN
BAUMANN is a Swiss family-owned company founded in 1886, now in its fifth generation, with around 1,500 employees and a group revenue of CHF 240 million. The company manufactures technically demanding springs (compression, spiral, torsion, and wave springs), wire bent parts, stamped parts, as well as contact elements (Canted Coil Springs) and lamella contacts for electrical power transmission. Production encompasses in-house tool development and toolmaking, multi-slide bending, inert-gas and laser welding of contact element ends, and surface technology such as zinc flake coating (since 1982) and plating with gold, silver, nickel, and tin. Materials include spring band steel, stainless steel, non-ferrous metals, copper, zirconium copper, and beryllium copper. In-house winding machines are developed and built by the machine engineering division BAMATEC AG. The group operates production sites in eight countries on three continents, including the headquarters in Ermenswil (Switzerland) and plants in Germany, the Czech Republic, Spain, the USA, Singapore, China, and Mexico. Customers come from the automotive, industrial, medical/pharmaceutical, electrical, and energy technology sectors; over 4.8 billion parts are produced annually.
- Site
- Ermenswil
- Processes
- Spring manufacturing (compression springs, spiral springs, torsion springs, wave springs, extension, Stamping technology (stamped parts with in-house tool development and toolmaking), Multi-slide bending (lamella contacts), Inert-gas/laser welding of contact element ends (Inert-gas welded, 3-point laser welding), Assembly of contact elements (housing or piston assembly), Surface technology: zinc flake coating (since 1982), Surface finishing: plating with gold, silver, nickel, tin, and others, Metrology and testing technology
- Materials
- Stainless steel (corrosion-resistant steel), Spring steel (spring band steel), Pre-coated material, Pre-hardened material, Non-ferrous metals, Zirconium copper, Copper alloys, Copper
- Certificates
- ISO 9001:2015, ISO 14001:2015, IATF 16949:2016, ISO 13485:2016, TISAX Assessment, ISO 45001:2018, TISAX
- Founded
- 1886
- Employees
- 1500
- Industries
- Automotive, Industrial, Medical and pharmaceutical industry, Energy/Power transmission (medium and high voltage), Electrical industry, Medical technology
- 01
Engineering & Development
- 02
Tool Development & Toolmaking
- 03
Machine Engineering (BAMATEC AG)
- 04
Spring and Stamped Part Manufacturing
- 05
Welding & Assembly
- 06
Surface Technology
- 07
Metrology & Testing
- 08
Packaging, Shipping, Storage
Materials & Processes
Spring band steel
Base material for springs and stamped parts with high fatigue bending strength.
Stainless steel (corrosion-resistant steel)
For corrosion-resistant springs, wire bent parts, and contact elements, also in medical technology.
Copper & copper alloys
Material for lamella contacts and contact elements with high electrical conductivity.
Zirconium copper
Wire material for contact elements in medium- and high-voltage applications.
Beryllium copper
For lamella contacts and contact elements with high conductivity and spring force.
Non-ferrous metals
For custom stamped parts with special electrical or corrosion-related requirements.
Zinc flake coating (since 1982)
Active corrosion protection for automotive components using base and topcoat.
Plating (Ag, Au, Ni, Sn, among others)
Surface finishing for electrical contacts in electrical and energy technology.
Sites
Ermenswil
CHHeadquarters & Production
- Materials
- Spring steel, stainless steel, copper alloys
- Winding machines (BAMATEC)
- Toolmaking
- Surface technology
Lichtenstein
DEProduction (springs, stamped and bent parts)
- Lot size
- Small to medium series (tension/compression springs)
- Materials
- Spring steel, stainless steel
- Winding machines
Karviná
CZProduction
- Spring manufacturing
Legutiano
ESProduction (BAUMANN MUELLES S.A.)
Grand Prairie
USProduction (BAUMANN Springs USA Inc.)
Singapore
SGProduction (stamped and bent parts)
Shanghai
CNProduction (BAUMANN Shanghai Co. Ltd.)
León
MXProduction (rings & wire forms for automotive)
Changshu
CNNew plant (contract 2024)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Spring manufacturing (compression springs, spiral springs, torsion springs, wave springs, extensionForming | – | – | – | – | Spring steel, Stainless steel, Non-ferrous metals |
| Stamping technology (stamped parts with in-house tool development and toolmaking)Forming | – | – | – | – | Stainless steel, Spring band steel, Pre-coated material, Pre-hardened material, Non-ferrous metals, Copper, Beryllium copper |
| Multi-slide bending (lamella contacts)Forming | – | – | – | – | Copper, Beryllium copper |
| Inert-gas/laser welding of contact element ends (Inert-gas welded, 3-point laser welding)Joining | – | – | – | – | Zirconium copper, Copper alloys, Stainless steel |
| Assembly of contact elements (housing or piston assembly)Assembly | – | – | – | – | – |
| Surface technology: zinc flake coating (since 1982)Surface | – | – | – | – | Metal |
| Surface finishing: plating with gold, silver, nickel, tin, and othersSurface | – | – | – | – | – |
| Metrology and testing technologyTesting | – | – | – | – | – |
| Grinding/Deburring/Cleaning (Medical Services)Surface | – | – | – | – | – |
| Engineering/Design support, prototypes and series production, process validation (DQ/IQ/OQ/PQ)Engineering | – | – | – | – | – |
| Machine engineering: In-house manufacturing of winding machines for spring production (BAMATEC AG)Engineering | – | – | – | – | – |
| Manufacturing of shafts, pins, assemblies, and surface treatmentsForming | – | – | – | – | – |
| Manufacturing of Flex, Miniflex, and Bellow couplings as well as clamping and locking elementsAssembly | – | – | – | – | Steel |
| Manufacturing of contact elements (Canted Coil Springs) small: inner diameter 4~25 mm,Forming | – | – | – | – | Zirconium copper, Copper alloys, Stainless steel |
| Manufacturing of contact elements (Canted Coil Springs) large: inner diameter 20~550 mm,Forming | – | – | – | – | Zirconium copper, Copper alloys |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Winding machines / Special machines for spring production (in-house machine engineering, BAMATEC | BAMATEC AG | 130+ (Sche | – | – | BAUMANN Group |
Additional services
Quality & Certifications
BAUMANN ensures product quality through state-of-the-art metrology and testing technology as well as systematic quality assurance from initial sampling through process control to final inspection. The group is certified to ISO 9001, ISO 14001, IATF 16949, and ISO 13485; for medical technology, process validations are performed according to DQ/IQ/OQ/PQ.
| Evidence | Ermenswil | Lichtenstein | Karviná | Legutiano | Grand Prairie | Singapore | Shanghai | León | Changshu |
|---|---|---|---|---|---|---|---|---|---|
| ISO 9001:2015 | |||||||||
| ISO 14001:2015 | |||||||||
| IATF 16949:2016 | |||||||||
| ISO 13485:2016 | |||||||||
| ISO 45001:2018 | |||||||||
| TISAX |
History
- 1886
Founded by Heinrich and Caspar Baumann in Switzerland.
- 1979
Plants established in Singapore and the USA (Charlotte, NC).
- 1994
Expansion into Spain; BAUMANN MUELLES S.A. in Legutiano, production from 1995.
- 1997
Acquisition of BAMATEC AG (in-house machine engineering for spring machines).
- 2000
Production start of BAUMANN China in Shanghai (12.04.2000).
- 2006
Friedrich Schlegel GmbH integrated into the group; cornerstone laid for plant in León, Mexico.
- 2007
Production start in Karviná (Czech Republic) and start of production in Mexico.
- 2010
Fifth generation takes over the leadership.
- 2012
Opening of a sales office in India.
- 2024
Contract signing for a new production plant in Changshu, China (18.01.2024).
- Heute
Production sites in 8 countries on 3 continents, CHF 240 million revenue, 1,500 employees.