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Vonroll

Power unleas­hed

As pioneers and indus­trial lea­ders, we are always one step ahead

Von Roll Inside
makes the difference

The use of electri­city in electri­cal machi­nes and devices is not pos­si­ble without a cus­to­mi­zed insu­la­tion sys­tem. In addi­tion, sen­si­tive elec­tro­nic com­pon­ents must be pro­tec­ted against mecha­ni­cal stress and envi­ron­men­tal influences.

We have deve­lo­ped the best solu­tion to meet these requi­re­ments. Our team of experts works clo­sely with well-known brands and glo­bal mar­ket lea­ders. For more than 100 years, even the most deman­ding cus­to­mers have been impres­sed by our products.

Con­ver­ting high vol­tage into high per­for­mance

Wind and water carry enor­mous amounts of energy. Our insu­la­tion sys­tems are enab­ling gene­ra­tors to con­vert this mas­sive power into electri­city. And con­ver­sely, when motors need to trans­form electri­city into mecha­ni­cal power, our insu­la­tion solu­ti­ons are essen­tial too.

Von Roll insu­la­tion sys­tems for high-vol­tage app­li­ca­ti­ons are a power­ful boos­ter for motors and gene­ra­tors. They make a huge con­tri­bu­tion in per­ma­nently impro­ving the effi­ci­ency, per­for­mance and dura­bi­lity of electri­cal machines.

Our one-sys­tem approach sim­pli­fies the com­plex inter­ac­tion bet­ween high-tech insu­la­tion tapes, high-per­for­mance com­po­si­tes, resins, var­nis­hes and wires. We are the only manu­fac­tu­rer in the world pro­vi­ding all these com­pon­ents and tailor-made solu­ti­ons from a sin­gle source.

Sys­te­ma­ti­cally matched

Electrical insulating tapes

Electri­cal insu­la­ting tapes 

Mica tapes are the key ele­ments for the main insu­la­tion of high vol­tage machines.

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High-voltage resins

High-vol­tage resins 

Resins pro­vide pro­tec­tion against mois­ture and vibra­tion wear. They also incre­ase dielectric strength.

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Composite materials

Com­po­site materials 

Com­po­site mate­ri­als rein­force the mecha­ni­cal sta­bi­lity of the winding.

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Wire components

Wire components 

In our state-of-the-art coil manu­fac­tu­ring faci­lity, we cover the ent­ire value chain from flat wire to fully insu­la­ted coils.

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Selec­ted fields of application

We are tech­no­logy lea­ders in various fields

Vonroll

Our solu­ti­ons are built-in to the lar­gest hydro­power plants in the world.

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Vonroll

Our solu­ti­ons for nuclear, coal‑, gas- or oil power plants

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Vonroll

The limi­ted acces­si­bi­lity and harsh con­di­ti­ons set hig­hest demands for the relia­bi­lity of insu­la­tion sys­tems used in wind power generators.

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Vonroll

Von Roll actively sup­ports manu­fac­tu­rers in their efforts to improve the effi­ci­ency and power-to-weight ratio of AC and DC motors, trans­for­mers, etc.

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Vonroll

Our solu­ti­ons enable large indus­trial machi­nes to achieve hig­her per­for­mance and relia­bi­lity at lower manu­fac­tu­ring costs.

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Vonroll

Die­sel engine gene­ra­tors ope­rate under highly vola­tile loads and heavy con­di­ti­ons inclu­ding strong vibra­ti­ons and extreme tem­pe­ra­tures. We pro­vide reli­able insu­la­tion sys­tems for all electri­cal components.

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More efficient

More efficient 

We are experts in maxi­mi­zing the ther­mal and electri­cal capa­city of the insu­la­tion sys­tem — impro­ving the effi­ci­ency of your machines. 

Stronger & more compact

Stron­ger & more compact 

Due to the impro­ved effi­ci­ency, your machi­nes will pro­vide more power at the same size — or you can opt for a more com­pact design. 

More durable

More durable 

Your machi­nes will fea­ture a lon­ger ope­ra­ting and ser­vice cycle — thanks to hig­her resis­tance against ther­mal, electri­cal and mecha­ni­cal stress. 

Cost-optimized

Cost-optimized 

We pro­vide you with opti­mi­zed all-in-one sys­tems, which redu­ces mate­rial costs and sim­pli­fies the serial pro­duc­tion of your electri­cal machines.

COIL PRO­DUC­TION IN INDIA

From raw mate­ri­als to inte­gra­ted, ready-to-install components

 

The mar­ket for rota­ting electri­cal machi­nes, gene­ra­tors and motors is expe­ri­en­cing a strong out­sour­cing trend — dri­ven by major manu­fac­tu­rers. We have expan­ded our exis­ting plant in Ban­ga­lore into one of the most modern pro­duc­tion faci­lity for electri­cal coils in India. This has streng­t­he­ned our posi­tion as a pro­du­cer of inte­gra­ted and ready-to-install sys­tem components.

Von Roll is the only com­pany in the electri­cal insu­la­tion mar­ket to cover the ent­ire value chain from raw mate­rial extrac­tion to ready-to-install wire coils as a one stop shop. Con­trol­ling the ent­ire pro­cess enab­les us to deve­lop uni­que pro­ducts with the hig­hest qua­lity stan­dards. In close coope­ra­tion with our experts in Brei­ten­bach, our Indian faci­lity now also offers tech­ni­cal design, com­plete sys­tem tuning and manu­fac­tu­ring of ent­ire coil components.

Strong pro­tec­tion for sen­si­tive technology

Without even knowing, you have pro­bably already come into touch with one of our pro­ducts today. Eit­her in your car, in your home, or in indus­trial pro­duc­tion. Whe­re­ver electri­cal devices and elec­tro­nic com­pon­ents are used, our resins play an essen­tial role. They pro­tect sen­si­tive tech­no­logy in an effec­tive and very eco-friendly way. At the same time, they enhance dura­bi­lity and per­for­mance significantly.

In the course of Indus­try 4.0, digi­ta­liz­a­tion and elec­tri­fi­ca­tion, the demand for motors, sen­sors and electri­cal com­pon­ents is rising rapidly. As a lea­ding spe­cia­list for inno­va­tive resin sys­tems, we sup­port manu­fac­tu­rers world­wide in stay­ing ahead of these trends.

We stand out in par­ti­cu­lar with our high-per­for­mance range of sol­vent-free, green resins. They are extre­mely easy to apply and enable our cus­to­mers to achieve tech­ni­cal pro­gress in a way that is kind to human health and our climate.

With R&D cen­ters in Europe and the USA, Von Roll is a tech­no­logy lea­der and has a strong inno­va­tion track record. Our rese­arch teams work clo­sely with well-known brands and glo­bal mar­ket lea­ders on spe­ci­fic cus­to­mer projects.

Pro­ducts and sys­tems for the elec­tro­nics industry

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Insu­la­ting sys­tems for rota­ting machinery, motors and generators

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Pro­tec­tion for electri­cal components

Our exper­tise for over 100 years

Impregnating resins

Imp­reg­na­ting resins 

Imp­reg­na­ting resins are used to pro­tect and sta­bi­lize induc­tive win­dings in motors and generators.

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Potting resins

Pot­ting resins 

Pot­ting resins pro­tect elec­tro­nic com­pon­ents from envi­ron­men­tal impacts and overheating.

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Insulation papers

Insu­la­tion papers 

Sheet insu­la­tion mate­ri­als are used in motors and electri­cal equip­ment as part of the main insulation. 

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Protective coatings

Pro­tec­tive coatings 

Pro­tec­tive coa­tings cover prin­ted cir­cuit boards and elec­tro­nic com­pon­ents to pro­tect them from envi­ron­men­tal impacts.

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SELEC­TED APPLICATIONS

We are tech­no­logy lea­der for insu­la­ting resins in various fields

Vonroll

Indus­try 4.0 demands hig­hest effi­ci­ency and endu­rance of indus­trial dri­ves, sen­sors and elec­tro­nics. Our newly deve­lo­ped resin sys­tems offer uni­que advan­ta­ges and solid protection.

Vonroll

The push for more power­ful electri­cal app­li­an­ces fea­turing ultra-com­pact motors crea­tes high engi­nee­ring chal­len­ges. Our imp­reg­na­ting resins pro­tect motors and elec­tro­nics in such devices even at maxi­mum speeds and under harsh environments.

 

Vonroll

Insu­la­tion resins are used in a wide range of app­li­ca­ti­ons for modern vehi­cles. They are essen­tial for the reli­able ope­ra­tion of elec­tro­nics, sen­sors, bat­te­ries and e‑motors.

 

Vonroll

Our resins pro­vide elec­tro­nic com­pon­ents with high levels of pro­tec­tion against envi­ron­men­tal influ­en­ces. Thanks to excel­lent heat dis­si­pa­tion, they enable more com­pact designs, e.g. for trans­mit­ter modu­les in 5G networks.

 

Inno­va­tive & eco-friendly

GREEN RESINS IN GREAT VARIETY

Are you loo­king for cost-effi­ci­ent solu­ti­ons for large scale serial pro­duc­tion? Our inno­va­tive sys­tems can be tailo­red very spe­ci­fi­cally to any desi­red application.

The Dol­ph’s® pro­duct port­fo­lio is extre­mely ver­sa­tile and inclu­des, among others, the well-known brands Dol­p­hon®, Hi-Therm® and Aqua-Therm®.

Dol­ph’s® does not only stand for over 110 years of expe­ri­ence. It has also been pionee­ring the deve­lo­p­ment of par­ti­cu­larly envi­ron­ment­ally friendly for­mu­la­ti­ons for deca­des. A majo­rity of our resins are already free of sol­vents and hazar­dous sub­s­tan­ces. Some of them are even com­ple­tely label-free.

With out­stan­ding ser­vice, Dol­ph’s® sup­ports cus­to­mers around the world in their efforts to com­bine maxi­mum func­tio­n­a­lity with hig­hest stan­dards of sustainability.

The che­mi­stry is right.
Peek inside our Inno­Lab!
Learn more

Spot­light

Electri­cal insu­la­tion news

Class H sys­tem of next generation

Gene­ra­tors will become even more effi­ci­ent in the future thanks to our new Sami­c­abond system.

Top story wind

Coil shop

Von Roll is expan­ding the site in Ban­ga­lore into one of the most advan­ced cen­ters for the pro­duc­tion of insu­la­ted coils in India.

Press release

E‑Drive Test Lab 

Busy days in the eDrive Lab of our High-Vol­tage Institute. 

Press release

110 years Dolph’s®

Foun­ded in 1910, our Dol­ph’s® brand recently cele­bra­ted its 110th anni­ver­s­ary. Electri­cal Appa­ra­tus maga­zine cove­red it. Curious?

Read arti­cle

ANY QUESTIONS? CONTACT US!

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      ANY QUESTIONS? CONTACT US!

      Contact

      Please enter the reason for your contact and your specific questions in the form. We will get back to you with our answers as soon as possible.












        This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

        Call

        Our callback service for you!














          This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

          Download Center

          Our latest brochures and reports are available under the following link.

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