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IMG.804.V02.EN
Wind Power Brakes
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www. .com
Perfect Pitch- and Yaw Brakes andGL-certified Cold Climate Version
www. .com
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Operating reliability around the clock
– Maximum reliability due to application-oriented product design.
Over 15 years of experience in wind power went into the development of our maintenance-free wind power brake.
– Minimum downtimes due to fast delivery and support from our worldwide network of representatives and subsidiaries.
– Better competitive ability thanks to maximum product performance:
Due to constant further development and specific load tests in our own testing department, our products are always in line with the latest advancements in technology.
– Low procurement costs due to use of our wind power standard brake.
– Reduction of operating costs due to reducing the holding power by up to 88 %. With this energy- saving wind power brake design, you can reduce not only your costs, but also produce a complete environmental concept.
– Constructional freedom of design due to our readiness to provide customer-specific special solutions. In collaboration with our design engineers, we are able to realise customer-tailored special constructions within a short period of time.
A mayr® wind power brake in operation
Safety Brakes for Wind Power Plants
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Pitch drive with angular gear and mayr® wind power brake
Offshore – Our know-how For 20 years, the company mayr® power transmission
has supplied a seawater brake, the ROBA-stop®-S, especially developed for these ambient conditions. This product is used in maritime applications such as on ship‘s winches and harbour cranes.
This know-how and the experience thus gained has flowed into our pitch and azimuth brake, the ROBA-stop®-M for offshore wind power plants, which come in high-quality corrosion protection designs, and in versions with high protection such as IP65.
100 % Quality Assurance A comprehensive, 100 % final inspection is carried
out for all brakes on technical characteristics such as the spring force, air gap and tightening and drop-out voltages in order to guarantee immediate and reliable use of all brakes on delivery.
Short-term availability The standard-design wind power brake is available
at extremely short notice and can secure you competitive advantages for projects which are critical in terms of time, as well as for spare parts deliveries.
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ROBA-stop® wind power brake
– the perfect safety brake for pitch and yaw drives
• Braking torque 8 to 250 Nm
• Protection IP54 - IP65
• Metal rotor
• Insulation material class F (155 ºC)
• Relative switch-on time 100 %
• CSA approval
• Cable length 400 mm (600 mm from Size 100), other lengths available on request
• Power supply possible from the frequency converter intermediate circuit
• Easy installation and high operating reliability due to enclosed housing
• 100 % quality control
Motor for pitch and yaw drives with integrated ROBA-stop® wind power brake
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C USLR 108927
CERTIFICATE NO. DAA-GL-007-2013
E189728
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We offer a wide range of supplements and options for our ROBA-stop®-M safety brakes. They make adaptation of our brakes to the requirements for your application much easier. The following are some of the most frequently-requested "special fittings“:
• Extended corrosion protection
• Mounting preparation for encoders
• Anti-condensation heating (recommended at temperatures below 0 ºC)
• Continuous shaft
• Adjustable torque
• UL approval
• Maximum torque tolerance accuracy due to individually-adapted friction lining characteristics
• Microswitch for status monitoring
• Hand release
• Damped rotor
• GL-certified CCV design
We regard your special requirements as standard
Air gap "a“
Release inspectionWhen the magnetic coil in the coil carrier (2) is energised, the armature disk (3) is attracted towards it. A microswitch (1) signals that the brake is released.
Continuous shaft The enclosed design (IP65) is equipped with a sealing plug or lid in standard delivery. For continuous shafts, a radial shaft sealing ring (1) is installed in the coil carrier (2).
Damped rotor If vibrations in the drive line prove unavoidable, an O-ring (1) between the tooth hub (6) and the rotor (5) damps any backlash.
Heating against condensationThe anti-condensation heating (1) serves to prevent condensate raining down into the brake interior. This is especially useful at temperatures below zero degrees Celsius or in high air humidity.
ROBA-stop®-MCCV design
Also available with initiator ans in IP65
For detailed information, detailed technical data and dimensions, please see our product catalogue K.891.V_ _._ _ This catalogue is also available for download as a pdf file on our website www.mayr.com. 5
CERTIFICATE NO. DAA-GL-007-2013
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Certified Cold Climate safety brakes
The only one certified by GLNot every brake labelled CCV is CCV!
ROBA-stop®-M CCVthe only electromagentic safety brake certified by GL to -40 °C. This certification guarantees that all relevant material and product characteristics have been tested and approved under near real-life conditions.
● Pitch drives ● Yaw drives ● Service elevators ● Maintenance platform ● Winches ● Cranes
Reliable and versatile to -40 °C for low temperature applications
Tested to -40 °C
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The Cold Climate Version of our ROBA-stop®-M safety brake sets new standards for low temperature applications of pitch and yaw brakes. It is the only electromagnetic safety brake for applications to -40 °C certified by Germanic Lloyd (GL).
The certified pitch and yaw safety brakes work reliably even in the most challenging climatic conditions – even at temperatures of minus 40 °C – ensuring that your systems function correctly.
Certified Cold Climate safety brakes for wind power plants
Certified
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s
Ø D
h9
Ø M
Ø R
Ø r
Ø d
H7
a + 0,1/ -0,05
L
l
x
K
c
Ø G
L3
Lh
K1
Ø b
Ø D
1 h
9 *
c1
Ø G
2 H8
Ø Z
Ø s
1
z
Ø G
1 H7
Ø M
1
t
L4
L2
hK2
Ø b
Ø D
g7
Ø D
2
gc1
CERTIFICATE NO. DAA-GL-007-2013
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We reserve the right to make dimensional and constructional alterations.
Type 891.410.0Standard, enclosed
Dimensions [mm]16 32 60 100 150
a 0,2 0,2 0,25 0,3 0,3b 42 52 60 78 84c 35,5 39,2 50,5 54 59c1 42,5 47,2 58,5 64 71D 128 148 168 200 221D1 130 148 168 200 221D2 134 154 174 206 227
Dimensions [mm]16 32 60 100 150
G 33 36 38 48 55G1 40,5 52,5 60 75,5 82,5
G2 H8 22 28 32 42 48
g 4 4 4 5 6h 7 8 8 10 12K 12,3 8,3 12 12 20K1 10,3 10,3 14 12 18K2 10,3 10,3 14 12 18L 55,7 61,7 72,5 84 97L2 54,7 60,7 71,5 83 96L3 62,7 69,7 80,5 94 109L4 61,7 68,7 79,5 93 108l 20 25 30 30 35
M 112 132 145 170 196M1 52 61 75 88 100R 101 121 129,5 154 178r 71 84 95 106 122s 3 x M6 3 x M6 3 x M8 3 x M8 3 x M8s1 3 x M4 3 x M5 3 x M5 3 x M5 3 x M6t 10 10 10 10 10x 0 — 0,5 0 — 0,5 0 — 2 0 — 3 0 — 3Z 65 75 90 100 115z 1 1 1 1 1
Standard voltages 24; 104; 180; 207 V.Permitted voltage tolerance acc. DIN IEC 60038 (±10 %).
Type 891.414.1Enclosed design (IP65)
with flange plate
Type 891.414.2Tacho attachment design
with flange plate
* Flange plate outer diameter: -0,2
Air gap
ROBA-stop®-M Cold Climate VersionType 891.4 _ _._ Sizes 16 to 150
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Order Number
Nominal braking torque, standardBraking torque adjustment, reduced 1)
Braking torque adjustment, reduced 1)
Braking torque adjustment, reduced 1)
Braking torque adjustment, reduced 1)
Braking torque adjustment, increased 1)
Braking torque adjustment, increased 1)
1234578
04
Without additional partsFlange plate
__ / 8 9 1 . __ __ __ . __ / __ / __ / __
Sizes 16to
150
Low-temperature brake CCV 4 Standard
4 Standard
Enclosed design IP65Tacho design
0
12
Coil voltage [VDC] 24104180207
Hub bore
Ø d H7
Keyway acc.DIN 6885/1
or DIN 6885/3
Example: 16 / 891.430.0 / 24 / 16 / 6885/1
Permitted Hub BoresSize
16 32 60 100 150
Ø d H7
Type 891.41_._toType 891.45_._
KeywayJS9
6885/1min.
[mm]
14 19 22 29 38
max. 23 28,5 31 41,5 44
6885/3min. 17,5 21,5 26 - -
max. 24 30 33 - -
Type 891.47_._Type 891.48_._
KeywayJS9
6885/1min.
[mm]
14,5 19 23 35,5 -
max. 21,5 27 29 39 -
6885/3min. 17,5 22,5 30,5 - -
max. 22,5 29,5 - - -
We reserve the right to make dimensional and constructional alterations.
1) See Technical Data.
Technical Data Size
16 32 60 100 150
Nominal braking torque Standard Type 891.41_._ Mnenn [Nm] 20 40 75 130 200
Braking torque adjustment
Reduced
Type 891.42_._ [Nm] 17 34 63 110 160
Type 891.43_._ [Nm] 14 27 51 90 130
Type 891.44_._ [Nm] 10 20 38 65 100
Type 891.45_._ [Nm] 7 13,5 26 45 65
IncreasedType 891.47_._ [Nm] 23 46 86 145 -
Type 891.48_._ [Nm] 26 50 100 160 -
Electrical power Pnenn [W] 38 46 69 88 98
Maximum speed nmax [rpm] 3500 3000 3000 2500 1500
WeightStandard brakeType 891.41_._ m [kg] 3,4 4,5 7,4 13,6 19,2
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ROBA®-diskstop®
Electromagnetic solution for safe small wind turbines acc. IEC DIN EN 61400-2:The electromagnetic caliper brake ROBA®-diskstop® is – like the ROBA-stop®-M – designed as a safety brake according to the fail-safe principle and is suitable as a brake for the main drive of small wind turbines with or without pitch system. By mounting several calipers onto a disk or by enlarging the disk diameter, very high braking torques can be achieved. Experience has shown that especially in systems without pitch system, very high friction work values can occur due to permanent wind loads and frequently standard friction linings are not sufficient. In mayr®’s own Research and Development department, special sintered linings have been specified. Reliable brake dimensioning is essential here. Please request our questionnaire on brakes for small wind turbines. Via correct wiring, e.g. by using mayr®’s in-house developed electronic components, the electric holding performance of the brake can be reduced significantly in order to optimize the efficiency of the system.
FunctionThe ROBA®-diskstop® brake is designed as a spring applied, electromagnetic safety brake. Spring applied function: When the brake is de-energised, the thrust springs (2) push the armature disk (3) against the brake disk (Fig. 1). The brake disk is held between the friction pads (4).Electromagnetic function:Due to the magnetic force of the coil in the coil carrier (1), the armature disk (3) is attracted against the spring force to the coil carrier (1). The brake is thereby released and the brake disk can rotate freely. 10
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Operating the brake provides far larger potential for making savings than the construction. Up to 75 % of the energy can be saved via optimum control of the brake.
ROBA-stop® safety brakes are generally dimensioned so that they will release at coil nominal voltage even with maximum permitted wear of the friction linings. After release, a far lower voltage is quite sufficient to hold the brake open reliably.
This physical effect is used consistently on ROBA-stop® brakes by controlling them using the ROBA®-switch. Due to the reduction to 50 % of the coil nominal voltage, the electrical power is reduced and therefore the energy requirement by 25 %.
Responsible environmental protection is deeply rooted in our company philosophy. We develop our products according to the maxim of highest possible power density. This saves material and energy over the entire lifetime of the product. Of course we also manufacture using environmentally-friendly processes. This is confirmed by our DIN EN ISO 14001 certification.
On electromagnetic ROBA-stop® safety brakes, the magnetic flow is optimised by constructional design and material selection so that the required magnetic traction force can be achieved with as low a coil capacity as possible. Optimum dimensioning of the magnetic coils and construction designed to aid magnetic flow are important aspects for energy savings.
Optimum construction saves resources and reduces the coil capacity
Consistent energy efficiency
75 % lower energy requirements in operation due to lower voltage requirements
FEM magnetic flow calculation for a ROBA-stop® safety brake
ROBA®-switch fast-acting rectifier specially- tailored electrical accessory developed at mayr®
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Representatives
More representatives:
Austria, Belgium, Brazil, Canada, Denmark, Finland, Greece, Hongkong, Hungary, Indonesia, Israel, Luxembourg, Malaysia, New Zealand, Norway, Philippines, Romania, Russia, Slovakia, Slovenia, South Africa, Spain, Sweden, Thailand, Turkey
You can find the complete address for the representative responsible for your area under www.mayr.com in the internet.
Headquarters
Chr. Mayr GmbH + Co. KGEichenstraße 1, D-87665 MauerstettenTel.: +49 83 41/8 04-0, Fax: +49 83 41/80 44 21www.mayr.com, E-Mail: [email protected]
Branch office
Service Germany
Baden-WürttembergEsslinger Straße 770771 Leinfelden-EchterdingenTel.: 07 11/45 96 01 0Fax: 07 11/45 96 01 10
BavariaEichenstraße 187665 MauerstettenTel.: 0 83 41/80 41 04Fax: 0 83 41/80 44 23
ChemnitzBornaer Straße 20509114 ChemnitzTel.: 03 71/4 74 18 96Fax: 03 71/4 74 18 95
FrankenUnterer Markt 991217 HersbruckTel.: 0 91 51/81 48 64Fax: 0 91 51/81 62 45
KamenLünener Straße 21159174 KamenTel.: 0 23 07/23 63 85Fax: 0 23 07/24 26 74
NorthSchiefer Brink 832699 ExtertalTel.: 0 57 54/9 20 77Fax: 0 57 54/9 20 78
Rhine-MainHans-Böckler-Straße 664823 Groß-Umstadt Tel.: 0 60 78/7 82 53 37Fax: 0 60 78/9 30 08 00
ChinaMayr ZhangjiagangPower Transmission Co., Ltd. Changxing Road No. 16,215600 ZhangjiagangTel.: 05 12/58 91-75 65Fax: 05 12/58 91-75 [email protected]
Great BritainMayr Transmissions Ltd.Valley Road, Business ParkKeighley, BD21 4LZWest YorkshireTel.: 0 15 35/66 39 00Fax: 0 15 35/66 32 [email protected]
FranceMayr France S.A.S.Z.A.L. du MinopoleRue Nungesser et Coli62160 Bully-Les-MinesTel.: 03.21.72.91.91Fax: [email protected]
ItalyMayr Italia S.r.l.Viale Veneto, 335020 Saonara (PD)Tel.: 0498/79 10 20Fax: 0498/79 10 [email protected]
SingaporeMayr Transmission (S) PTE Ltd.No. 8 Boon Lay Way Unit 03-06, TradeHub 21Singapore 609964 Tel.: 00 65/65 60 12 30Fax: 00 65/65 60 10 [email protected]
SwitzerlandMayr Kupplungen AGTobeläckerstraße 118212 Neuhausen am RheinfallTel.: 0 52/6 74 08 70Fax: 0 52/6 74 08 [email protected]
USAMayr Corporation4 North StreetWaldwickNJ 07463Tel.: 2 01/4 45-72 10Fax: 2 01/4 45-80 [email protected]
AustraliaRegal Beloit Australia Pty Ltd.19 Corporate Ave03178 Rowville, VictoriaAustralienTel.: 0 3/92 37 40 00Fax: 0 3/92 37 40 [email protected]
IndiaNational EngineeringCompany (NENCO)J-225, M.I.D.C. Bhosari Pune 411026Tel.: 0 20/27 13 00 29Fax: 0 20/27 13 02 [email protected]
JapanMATSUI Corporation2-4-7 AzabudaiMinato-kuTokyo 106-8641Tel.: 03/35 86-41 41Fax: 03/32 24 24 [email protected]
NetherlandsGroneman BV Amarilstraat 117554 TV Hengelo OVTel.: 074/2 55 11 40Fax: 074/2 55 11 [email protected]
PolandWamex Sp. z o.o. ul. Pozaryskiego, 2804-703 WarszawaTel.: 0 22/6 15 90 80Fax: 0 22/8 15 61 [email protected]
South KoreaMayr Korea Co. Ltd.Room No.1002, 10th floor, Nex Zone, SK TECHNOPARK, 77-1, SungSan-Dong, SungSan-Gu, Changwon, KoreaTel.: 0 55/2 62-40 24Fax: 0 55/2 62-40 [email protected]
TaiwanGerman Tech Auto Co., Ltd.No. 28, Fenggong Zhong Road, Shengang Dist.,Taichung City 429, Taiwan R.O.C.Tel.: 04/25 15 05 66Fax: 04/25 15 24 [email protected]
Czech RepublicBMC - TECH s.r.o.Hviezdoslavova 29 b62700 BrnoTel.: 05/45 22 60 47Fax: 05/45 22 60 [email protected]
HagenIm Langenstück 658093 HagenTel.: 0 23 31/78 03 0Fax: 0 23 31/78 03 25
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