1. Presentation eldec
1.
Physics of induction heating
2.
eldec history
3.
Products, applications and industries
4.
eldec contacts worldwide
SDF® Induction hardening of a bevel gear
Induction brazing of joining copper wires on an electric
motor

2. 1. Physics of induction heating
■ Alternating current, that flows through a coil, leads to a time
dependent magnetic flux around that coil.
H
■ The magnetic flux creates eddy currents in a work piece that is
located inside the coil .
■ The penetration of the induced current depends on the frequency.
■ Eddy currents are generated by the electrical resistance of the
work piece.

3. 2. eldec history
■ 1982
Founded in 1982 by Dipl. Ing. Wolfgang Schwenk. eldec develops and manufactures inductors.
■ 1993
The product range continues to expand: eldec develops and supplies the first HF and MF
generators with IGBT semiconductor transistors.
■ 1998
Founding of eldec Induction USA. This facility markets all eldec products, assembles generators
and offers all services for the American markets, Canada, Mexico and South America.
■ 2000
Supply of the first SDF ® generators. A patented technology which is mainly used for truecontour inductive surface hardening of gear wheels.
■ 2004
€11 million turnover with the two facilities.
■ 2006
Completition of a worldwide unique pilot hardening system with a 3000 KW SDF® - Generator.
eldec Inductors
eldec MF, HF and SDF® Generators
eldec USA, Auburn Hills

4. 2. eldec history
■ 2007
eldec reaches turnover of approx. € 12 million with 90 employees.
■ 2008
Introduction: MIND hardening machine range.
■ 2009
eldec establishes sales and service facility in China. Introduction of MICO product range.
■ 2010
Introduction of MIND-S product line.
■ 2011
Introduction of MIND-M product line. Additional floor space for production and assembly in USA.
New production and assembly facility with additional 2000 qm in Dornstetten, Germany.
Worldwide turnover approx. € 19 million with 135 employees.
■ 2012
Introduction of MICO-S. The MICO product line is complete.
eldec reaches turnover of approx. € 21 million worldwide.
■ 2013
eldec becomes a member of EMAG Group.
MICO product line
MIND product line
eldec Dornstetten

5. 3. Products, applications and industries
■ Generators
and Heating Systems
Energy sources and systems for
inductive heating. Stationary or mobile.
eldec generators
MF, HF and SDF®
from 5 – 3000 KW
and 4 – 450 KHz
Heating System for housings of electric
motors
eldec manufacturing of generators in Dornstetten
Shrinking of gear motors
Brazing of short circuit rings
Brazing of end of pipes at heat
exchanger
Shrinking of turbine rotor caps with
heating cabels
Brazing of a carbide metal
piece

6. 3. Products, applications and industries
■ MICO
Energy source (generator) and
cooling system integrated in one.
Stationary or mobile.
MICO S, M, L
MF and HF
from 5 – 70 KW
eldec assembly of MICO systems in Dornstetten
Brazing of transformer parts
Cutting-edge hardening
Brazing of copper wires

7. 3. Products, applications and industries
■ Hardening Systems
Modular Inductive Hardening Systems for chucked parts and
shafts up to ø 1200 mm
eldec MIND
eldec MIND-M 1000
eldec MIND-M 250
eldec MIND-S

8. 3. Products, applications and industries
■ Tools: Inductors, ...
■ Services
+ eldec inductors are designed using state-of-the-art
3D CAD software.
+ Brazing guns.
+ Heating cables.
+ Fixtures (also under inert gas).
.
Inductors made by eldec
Brazing gun
Heating cable
+
+
+
+
+
+
Technological consultation.
Process development.
Training (Operating, Maintenance, etc.).
Technological and metallurgical training.
Commissioning.
After-Sales Service.

9. 3. Products, applications and industries
■ Automotive
- Hardening
- Brazing
- Shrinking
■ Power plants, electrical
machine construction
and renewable energy
- Hardening
- Brazing
- Shrinking
■ Aerospace engineering
- Hardening
■ Mechanical and
systems engineering
- Hardening
- Brazing
- Heating
- Shrinking
DAIMLER CHRYSLER

10. 4. eldec contacts worldwide