Member of SGL Group – The Carbon Company
Carbon Brushes
for Wind Energy
Generators
Carbon brushes –
made by SGL GELTER.
̣̣ Customized solutions for a wide variety
of applications
̣̣ Consistently high quality and
performance
̣̣ In-depth production and material
knowledge
̣̣ State-of-the-art production site
̣̣ Short production and delivery times
̣̣ ISO 9001, ISO 14001, TS 16949,
and ISO 50001 certified
̣̣ More than 25 years' carbon brush
manufacturing experience for
wind energy generators
CARBON BRUSHES FOR WIND INDUSTRY APPLICATIONS
Carbon brushes
for wind energy generators
Slip ring
Brush holder
Brush rocker
Brushes
Our carbon products are notable for their exceptio-
Application-specific products for wind energy
nal properties and meet stringent requirements
generators:
for reliability, robustness, and service life. Our
ɋɋ Grounding and power brushes
portfolio ranges from carbon brushes and brush
ɋɋ Special brushes for low- and
holders to brush rockers and slip rings. We offer
high-humidity climates
tailored solutions that comply with high quality
ɋɋ Lightning protection brushes
and environmental standards ISO 9001, ISO 14001,
ɋɋ Custom-designed products and shapes
TS 16949 and ISO 50001 and so meet the demanding
ɋɋ Silver- and copper-containing carbon brushes
requirements of wind generators and turbine manufacturers, wind farm owners, and maintenance
providers.
c Brush plates made of metal-graphite and electro-graphite
METAL-GRAPHITE FOR WIND ENERGY APPLICATIONS
Metal-graphite for carbon brushes
Range of materials for different absolute humidity conditions
A combination of the finest-grade raw materials
and unique production processes allows our
carbon brushes to offer outstanding performance,
H-Grades
with excellent conductivity and uniform wear,
even under extreme weather conditions.
Standard-Grades
L-Grades
0
5
22
39
[gH₂O/m² air]
Regions with long periods of extreme absolute humidity values through the year
Low absolute humidity: 0.5 - 5.0 [gH₂O/m² air]
Medium absolute humidity: 5.0 - 22.0 [gH₂O/m² air]
High absolute humidity: > 22.0 [gH₂O/m² air]
Material data on our metal graphite-grades for carbon brushes in wind energy applications1)
Typical properties
Current density
Peripheral speed
Density
Hardness rockwell B
Flexural strength
Resistivity
¹⁾ Brush pressure: 2.2 n/cm²
Units
Metal-graphite
RC27 RC27L RC42 RC42L RC42H RC53 RC53L RC67 RC55 RC60
RS70
A/cm2
12
12
15
15
15
19
19
19
20
20
28
m/s
40
40
40
40
40
35
35
30
35
35
20
g/cm3
2.4
2.4
2.8
2.8
2.8
3.2
3.2
3.8
3.19
3.2
4.3
HR 10/60
70
67
80
75
70
84
75
83
80
74
90
N/mm2
20
19
24
23
19
30
29
35
26.5
26.5
30
µΩm
20
20
3
3
3
1.3
1.3
0.4
0.95
0.90
0.78
SGL GELTER
Reliable power transmission in
electrical machines.
SGL GELTER offers high-quality carbon and metal-graphite brushes
worldwide – even for challenging applications. Our combination of
in-depth production and material knowledge with short production
and delivery times enables us to be a reliable supplier for power
transmission in electrical machines.
SGL GELTER is a joint venture between Gelter and
Carbon brushes for wind energy generators
SGL Group – The Carbon Company, a leading global
manufacturer of carbon-based products.
Renewable energies are becoming increasingly
SGL GELTER manufactures carbon and metal-
important in worldwide energy generation. Wind en-
graphite brushes for a number of different fields of
ergy is the most rapidly growing form of renewable
application, including the automotive, traction,
energy. In both onshore and offshore areas, giant
industrial, mining, and wind energy sectors.
wind farms are springing up.
We have a wide range of carbon and metal-graphite
Carbon brushes are very important functional com-
grades to cover all market needs. Our close coopera-
ponents of wind energy generators. They are used
tion with SGL Group, as the raw material producer,
as electrical contacts for power transmission. Our
allows us to develop grades tailored to customer
expertise in materials and applications makes us a
requirements. With our state-of-the-art production
sought-after partner in the wind energy industry.
site in Madrid/Spain, we manufacture high-quality
brushes in a short time and supply our customers
worldwide.
We have more than 75 years' experience in the
development, production, and application of carbon
brushes. SGL GELTER has been supplying the wind
energy industry for more than 25 years. We are
continually developing new products and services
to solve challenges posed by both technological
advances in wind energy generation and its
geographical expansion.
c Carbon brushes for wind energy generators
Contact
SGL GELTER S.A.
C/San Dalmacio 33
28021 Madrid/Spain
sales@sgl-gelter.es
04 2016/0.5 E Printed in Germany
This document has been prepared according to the best current knowledge and is intended to provide general
information about our products and their use. In view of the wide variety of possible applications, the data
cited in this document should be regarded as general information and is no guarantee of certain features of
our products in a given case. If you are interested in placing an order, please ask for information regarding the
features needed for your proposed application.
SGL GELTER S.A.
C/San Dalmacio 33 I 28021 Madrid/Spain
www.sglgroup.com/sglgelter