1. Welcome to Lapp Insulators Alumina GmbH
W E P O W E R T H E F U T U R E
3rd ASPERA Technology Forum Industry meets Academica:
Vacuum & Cryogenics
Darmstadt,

2. Industrial Park Redwitz with LAPP Factories
Lapp Insulators GmbH:
Porcelain insulators (500kV)
Composite hollow insulators (500kV)
Lapp Insulators Alumina GmbH:
Thyristor housings
Diodes
Feedthroughs
Components for x-Ray and
Vacuum technology
Porcelain
Alumina

3. History/Roadmap Redwitz
Company History
History/Roadmap Redwitz
Company transactions
1950
1970
Founding of the Ceramic Insulators plant
Founding of the Alumina Oxide Ceramics plant
1990
1995
Opening of Sales Office in Alpharetta, Georgia (USA)
Founding of the Composite Insulators plant (SIMOTEC)
1998
Acquisition of Siemens Fabryka Izolatorow Sp. Z.o.o., Jedlina Zdrój – production of medium and low-voltage insulators in Poland
2004
Acquisition of IZOCER, Turda (Romania)
2002
Carve out from Siemens AG and sale to Demag Holding, Luxemburg (81% KKR, 19% Siemens)
2007
Sale to Johnson Matthey plc, Environmental Control Technology (ECT) Division
2008
2011
Sale of the Redwitz factories to LAPP Insulators GmbH (Andlinger Invest)
Sale to Quadriga Capital Services GmbH

4. Numbers and Certificates
LAPP Insulators Alumina GmbH
Specialist for:
Aluminumoxide (96%; 97,5%; 99,97%)
Vaccum tight metal-ceramic-joints (brazing)
Customized parts within 6 weeks
Metallizing and Nickel plating (electro/electroless)
Organization
Splitted in „Housings“ and Profit Centre „New Products“ since 2011
Production Area
4500m²
Turnover/Employees
approx. 13 Mio. € / 77
Certification
DIN EN ISO 9001:2000
DIN EN ISO 14001:2005
OHRIS
Insulators
Alumina
Alumina
products

5. Production Process
Whole production chain in one hand, from powder till Ni-plating
We handle more than 200 to of OF-Cu a year (contact pieces of thyristors)
Alumina consumption > 150 to a year / 6m² sintering capacity in 7 kilns
Self optimized He-vacuum tightness test rigs till mbarL/s
MoMn-Metallization paste, alumina powder and overglaze is produced in house

6. Housings for High Power Semiconductors – „Housings“
Dimensions
Voltage class up to V and 8000A
Diameters 2“-6“
Application
Power generation and transmission
HVDC-stations (AC/DC – transformation)
Welding diodes
Fast starters
Technical data:
Material: Al2O3 96%; OF-Cu
Joining technology: Brazing with MoMn-Metallizing
Control mode: Gate or light ingnited
He-vacuum tightness: 10-9 mbarL/s
Ceramic surface outside: glazed
Bonding Strength Metallization
>200 N/mm² (average)

7. Profit Center „New Products“ –
New Products with well known and new Technologies
Goals
Developing new products by using well known technologies
Prototyping in 6 weeks with specialized team
Implementing new technologies who are fitting to core business
Enhancing turnover
Actions
Empowering market acceptance – Attendance of several fairs to push degree of popularity
(Hannover Fair 2011/12; Ceramitec 2012…)
Developing standard program feedthroughs
Entering new business fields – Laser technology
Developing new brazing technology for stainless steel in house; ENIG-method for substrates
Results
Doubling number of customers in one year
15 new products in market right now
Significant increase of turnover

8. New Products – Vacuum Interrupter Tubes
Dimensions
Various up to 305 mm in diameter
Application
Vacuum switches for medium voltage
Step switches
Technical data:
Material: Al2O3 96%; Electrical strength >30kV/mm
Joining technology: Brazing with MoMn-Metallizing
Ceramic surface outside: glazed
Bonding Strength Metallization >200 N/mm² (average)
Produced tubes > p.a.
Medium Voltage (-42kV)
High Voltage (D 200mm)
Medium Voltage (-42kV)

9. New Products – Customized Feedthroughs
Feedthrough for Plasma Coating 130A, 11kV
Insulated Support 15kV (EN 60664)
Feedthrough 12kV (C220)
Customized Feedthrough
Technical data:
Material: Al2O3 96%/99.97%,Steatite; Electrical strength >10-30kV/mm
Joining technology: Brazing with MoMn-Metallizing/active brazing
Joining materials: Copper/NiFe/stainless steel
Bonding Strength Metallization >200 N/mm² (average)

10. Single Feedthrough with CF-Flange Double Feedthrough with KF-Flange
New Products – Standard Program Feedthroughs
Single Feedthrough
Single Feedthrough with CF-Flange
Single Feedthrough with KF-Flange
Double Feedthrough with KF-Flange
Technical data:
Material: Al2O3 96%/NiFe42;Stainless steel; Conductor OF-CU or NiFe
He-Vaccum-tightness 10-9 mbarL/s
Voltage from 1kV to 8kV and 80A
Temperature range: -150°C - 300°C

11. New Products – Laser Technology
Source of CO2-Laser Beam – Metallized Cathodes with glass shielding (air flashover)
Source of CO2-Laser Beam – Multidirectional MoMn-Printing
(+ front edges)

12. New Products – Special components
Metallized/Brazed Parts
Application of ceramic-metal-joints in wear protection – cost effectiveness
Engineering with FEA-method to choose optimal joints before prototyping
Technical data:
Material: depends on customer and application (f.e. conductive ceramics; Si3N4 or ZrO2)
Joining technology: Brazing with MoMn-Metallizing/active brazing/glueing/shrinkage fit
Design: from 1 mm to 300 mm Diameter; length till 500mm

13. New Products – New Technologies
Gold-plating by ENIG-method
(Electroless Nickel Immersed Gold)
Gold-plated Substrates
Technical data:
Material: Al2O3 96%, metallized;Ni-plated; gold plated
Thickness measurement of Au-layer in nanometer-range
Measurement of bonding strength for ultrasonic bonded wires

14. Outlook
Alumina will generating a further growing in the new business fields
With new technologies Alumina will develop as a specialist in a niche market
To fulfil the market demands we will act with a very flexible team to reduce
lead times and deliver a high quality
The new standard program will be active after Hannover fair 2012