Silentwind - Rulis Electrica, Lda.

Lot Industrial de Linhares, Lote 19, Santo Estevao Briteiros, 4805-486 Guimarães

Telephone +351 253 572763
Fax +351 253 572764


Hall map

boot 2017 hall map (Hall 11): stand G19

Fairground map

boot 2017 fairground map: Hall 11

Our range of products

Product categories

  • 02  Engines and Related Equipment
  • 02.01  Engines/Drives
  • 02.01.10  Turbines
  • 02  Engines and Related Equipment
  • 02.01  Engines/Drives
  • 02.01.13  Other Engines/Drives

Other Engines/Drives

Our products

Product category: Turbines

520W Wind – Solar – Hybrid – Set 12V

  • 1x Windgenerator Silentwind 12V
  • 1x set whisper blades "SILENT POWER Blades" spbΩ
  • 1x hybrid – charge controller HYBRID 1000
  • 2x solar panels HJM 50W für 12VDC - oder 24VDC - systems
Details of the SILENTWIND wind generator and the whisper blades can be found on the product description:

First class high power-monocrystalline solar panel HJM 50 with 50 Wp for 12V.

Because of its low nominal voltage of 18V, the monocrystalline solar panel HJM50, with its rated power of 50Wp is totally suitable for isolated operations.
Special production process in order to avoid intrusion of water.
Aluminum frame for a higher stability.
Special adhesion for a better waterproofing.

All advantages of the solar panel on one view:
More stability
because of a double walled aluminum structure with the height of 35mm that is anodized in silver.
U-bead filled up with glue
in which the edges of the laminate are glued in and sealed.
Optimized protection against torsion
aluminum frame reinforced with additional metal brackets at the edges.
No loss of power
bright silver frame to avoid too high temperatures of the panel and in consequence loss of power and efficiency.
Tempered solar-glass
tempered and high translucent glass with best protection against hail and high wind speed.
Easy replacement of the diodes
a solid wiring box allows an easy replacement of the bypass-diodes in the case of a defect. 2 separate cable connectors for the connection of the + und – cables.
Easy assembly
the wiring box has a lower dimension than the panel frame, means no elevated panel assembly. 6 screw slots at the backside of the panel for a more flexible assembly.
Perfect designed for integration in 12VDC – or 24VDC – systems
because of its low nominal-voltage of 18 Volt. Higher nominal-voltage leads to big losses at the charge controller.
parallel connection of 2 panels: 12VDC-systems
serial connection of 2 panels: 24VDC-systems

Quality certificates of HJM-solarpanels:

  • DIN VDE safety class II
  • RoHS - conformance
  • CE - conformance

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Product category: Turbines

Windgenerator 12V

•rated voltage 12V
•design-optimization in our own wind-tunnel
•permanent magnet-generator with 420 watts output
•very good start-up performance due to low cogging torque at 2,2m/s wind speed
•external hybrid controller for wind- and solar-energy with multi-function display and integrated electronic/manual stop switch
•universal application for low, middle and high wind
•hand laminated, UV-resistant carbon blades, successfully tested according to DIN EN 61400-2 at hurricane speed 122km / h (5480 rpm, with almost speed of sound at the blade tips). See for this our video clip of the wind-tunnel test.
•The usual, standard blades from other manufacturers are made from granulate using injection moulding techniques to achieve a fast production time, but lacking the durability especially after UV exposure associated with the potential risk of blade fracture. Our blades are handmade incorporating high tensile carbon fibre mats. This is a more labour intensive process resulting in an optimized blade profile at the lowest weight, which combines a very quiet operation, blade longetivity and an exceptional safety record.
•aerodynamic design from aircraft-engeneering
•low noise
•durable and low maintenance by external controller and high-quality components

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Product category: Turbines

Rotorblades spbΩ

  • High-tech carbon fiber rotor blades
  • Made of 100% Carbon-Fiber material – CFRP
  • Hand laminated. By using High–Tensile carbon fibers in hand laminated application with epoxy-resin the blades get extremely resistant
  • UV-resistant
  • Wind channel optimized
  • Ultra low noise emissions
  • Balanced for low vibrations
  • Outstanding strength to weight ratio
  • Successfully tested according to DIN EN 61400-2 at hurricane speed 122km / h (5480 rpm, with almost speed of sound at the blade tips)
Compatible with Air-X, Air 403, Air Marine and Air 30 models from Primus Windpower. For the Air Breeze and Air 40 models an extra hub will be necessary:

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About us

Company details

Established in 1993, Rulis Electrica, Lda is a Portuguese company with German management.

We have thirty years of experience and know-how acquired with our work on small wind turbines on marine vessels under particularly difficult conditions, especially on the Portuguese coast and in Atlantic crossings.

Our initial activity for the area of small wind turbines was the development of low noise rotorblades made of 100% carbon fiber material, handlaminated and UV-resistent. These blades were introduced in 2008 as replacement parts for a windgenerator well known on the market as very noisy. They were previously sold by Spreco, a member company of our group.

Due to their great success, we decided to develop and manufacture our own appropriate wind generator for our silent power blades.

In the end of 2010, the commercialization of our Silentwind generator started and has become a worldwide success for sea and land use. Since the beginning of 2012, all our products can be ordered directly from us or our dealers under the brandname SILENTWIND.

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