Ana­ly­tics lab

It’s about detail and precision

Accu­racy at the core

As a ser­vice pro­vi­der for our rese­arch depart­ment and for our cus­to­mers, the ana­ly­ti­cal labo­ra­tory forms the indis­pensable back­bone for suc­cess­ful rese­arch and deve­lo­p­ment. We gua­ran­tee the effi­ci­ent deve­lo­p­ment and qua­lity con­trol of pro­ducts and raw mate­ri­als. Do you need sup­port in your qua­li­fi­ca­tion pro­grams? We pro­vide you with fin­dings that will help you get ahead.

Che­mi­cal ana­ly­ses are our life­b­lood in the labo­ra­tory. In addi­tion, we test mate­ri­als for phy­si­cal and electri­cal pro­per­ties, mecha­ni­cal strength as well as aging beha­vior accord­ing to glo­bal stan­dards. This com­bi­na­tion of metho­do­lo­gies enab­les top tech­no­lo­gi­cal performance.

Our modern ana­ly­ti­cal labo­ra­tory works clo­sely with the Von Roll Insti­tute and the Inno­va­tion Lab. It is con­nec­ted to all depart­ments along the ent­ire value chain — from raw mate­rial purcha­sing to pro­duc­tion and cus­to­mer support.

Selec­ted methods from our 360° approach

Time- and tem­pe­ra­ture-depen­dent dif­fe­rence bet­ween the heat flows of the sam­ple and the refe­rence to deter­mine mel­ting or crystal­liz­a­tion pro­ces­ses, as well as glass tran­si­ti­ons. DSC can also be used to mea­sure spe­ci­fic heat capa­ci­ties and to moni­tor che­mi­cal reac­tions or other processes.

Tem­pe­ra­ture- and fre­quency-depen­dent deter­mi­na­tion of vis­co­elastic (dam­ping) mate­rial pro­per­ties, mainly of poly­me­ric mate­ri­als. DMA is the most accu­rate and most sen­si­tive method for deter­mi­ning the glass tran­si­tion tem­pe­ra­ture of poly­mers. The method allows for the veri­fi­ca­tion of the curing or post-curing of reac­tive resins.

Rheo­logy is used to study the defor­ma­tion and flow beha­vior of mate­ri­als under the action of for­ces. Dilu­ted poly­mer solu­ti­ons as well as poly­mer melts and solid poly­mers can be mea­su­red. Their vis­co­sity and vis­co­elasti­city depend on the mecha­ni­cal load and the temperature.

TGA mea­su­res the change in mass of a sam­ple during defi­ned hea­ting, coo­ling, or a con­stant tem­pe­ra­ture. The decre­ase (eva­po­ra­tion, decom­po­si­tion) or incre­ase (oxi­da­tion) in weight and the tem­pe­ra­ture at which the weight change occurs pro­vi­des important infor­ma­tion about the com­po­si­tion of a substance.

TMA is used to mea­sure dimen­sio­nal chan­ges of a sam­ple as a func­tion of tem­pe­ra­ture. Among other things, the method allows the deter­mi­na­tion of expan­sion coef­fi­ci­ents and the glass tran­si­tion temperature.

In this method, the poly­mer mole­cu­les are sepa­ra­ted based on their hydro­dy­na­mic volume. Using cali­bra­tion stan­dards, the rela­tive mole­cu­lar weights in the poly­mer sam­ple can be determined.

FT-IR is a power­ful method to ana­lyze the che­mi­cal com­po­si­tion of orga­nic sub­s­tan­ces. An IR spec­trum is recor­ded using mid-infra­red light (waven­um­ber: 4000–400 cm‑1 wav­elength 2.5–25 µm). The posi­tion and inten­sity of the trans­mis­sion bands pro­vide infor­ma­tion about the infra­red active func­tio­nal groups in the sam­ple and thus faci­li­tate the iden­ti­fi­ca­tion of the substance.

DEA is a method for stu­dy­ing the vis­co­sity and curing state of durom­ers, adhe­si­ves, coa­tings, and com­po­si­tes by mea­su­ring chan­ges in their dielectric properties.

This test is used to deter­mine the tacki­ness of fle­xi­ble imp­reg­na­ted mate­ri­als, such as insu­la­ting tapes. In this way, we ensure per­fect pro­cessa­bi­lity and opti­mal hand­ling for our customers.

Our offer — bene­fit from our know-how


Tell us about your spe­ci­fic requi­re­ments for high and low vol­tage insu­la­tion sys­tems. We will pro­pose to you fully tes­ted and tech­no­lo­gi­cally advan­ced insu­la­tion systems.

Insu­la­tion trai­ning incl. e‑drive

In our trai­ning cour­ses, you will gain a detailed over­view of insu­la­ting mate­ri­als and sys­tems for rota­ting high-vol­tage and low-vol­tage machi­nes. Inclu­ded are also topics such as selec­tion, pro­ces­sing and tes­ting of insu­la­tion systems.


A look into the practice

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