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CH | einfangstrasse 17 | ch-8451 kleinandelfingen/zh |

lieferung auch ab lager deutschland


mit nsg


In der Not e n Licht - das ist unsere Leidenschaft. Seit 40 Jahren.





Norm EN-81-2

mit einem stark reduziertem Stand-

by-Verbrauch überwacht die Akkukapazität und verringert so Ihren

Wartungsaufwand. Das kompakte



lädt energiebewusst Blei-

Akkus von 6VDC-24VDC und meldet Störungen der Lichtphase und

eine zu geringe Akkukapazität.



das Ersatzgerät.

+41(0)52 317 33 22

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Anzeige_Liftronic_eco_4_2016 13.04.1970 3:26 Uhr Seite 1

“Sliding guides and roller guides continue

to be extremely important for lifts and

this will remain the case in the future too,

despite all advances in development, just

like wheels and axles for cars,” emphasi-

sed ETN managing director Horst Eichler.


liding rollers are the formmost commonly

used. They have probably existed for a few

thousand years; for the most part, they

have been used in mining. Roller guides are the

comfort version for lifts. As buildings began to

get higher, the importance of roller guides grew

as a result of the length of the conveyance paths

and the higher speeds desired and needed.

However, roller guides can not only be used

for faster lifts, but also in different versions for

smoother, quieter and more vibration-free trans-

port. Even the simplest design with permanently

attached rollers on bearers produces comforta-

ble running thanks to the elastic roller lining,

depending on hardness (Shore A).

The lining of the rollers in the most sophisti-

cated designs is made of VU (Vulkollan) and is

generally used by ETN. Vulkollan is a highly ela-

stic polyurethane with an especially high load-

bearing capacity for elastomers, depending on

the hardness of the rollers, combining especially

good resilience and durability. Depending on the

hardness of the lining, this material is very good

at compensating for rail irregularities, offsetting

and roughness of rails, better than roller guides

can, or cheap products with rollers made of rub-

ber or PU based on Desmodur 44.

The aluminium or steel bearers used by ETN

have a guide holder for easy adjustment of the

rollers.Contrary to the otherwise normal use of

excenters, the support rollers here are always

opposite each other. Since they are pressed on by

hand, the linings cannot be crushed; this prevents

considerable wear both to the rollers as well as

to the entire lift.

Apart from the rigid roller guides, which ETN

lists under the abbreviation FK for lift car and GG

for counterweights, there is the special RS version

for backpack roller guides.



When it comes to the bearers (holders) of the rol-

ler guides, ETN distinguishes between aluminium

or steel designs and in special cases even stain-

less steel. The rollers have cores made of steel,

stainless steel or (as in most cases) aluminium,

as required. Depending on the use, the VU linings

vary in hardness between 65° Shore and 98°

Shore. The diameters and widths of the rollers

can be adjusted to almost any requirement. All

ETN rollers have precision ball bearings. Almost

all linings have undergone additional turning or

polishing for high true-running accuracy.

The designs RFG (spring-loaded roller guides),

RFGK (small spring-loaded roller guides), RFGW

and of course the tandem roller guide TRF boost

the comfort of the parts mentioned by using

elastic springs to compensate for rail jolts and

unevenness on the rails as well as unintended

vibrations. This is always dependent on centrally

suspended lifts.

ETN makes exclusive use of spring mountings

made of a Vulkollan elastic intermediate layer

per roller, consisting both of cells or homogene-

ous or both mixed. They can be easily adjusted

by any fitter without additional tools. The springs

do not cause any additional vibrations, as is al-

ways the case with steel springs. Each roller can

be individually adjusted in the case of the roller

guides (RFG; RFGK; RFGW) with three rollers each

and in the case of tandem roller guides (TRF) with

six rollers, each is individually suspended, as in

luxury cars, without the otherwise normal see-

sawing with two rollers. This version is especially

suitable for comfortable, low-noise, vibration-

free and also fast transport up to about 8 m/sec.

TRF is especially suitable for hospital lifts,

where it is already in widespread use, for hotels,

administrative buildings of all kinds, skyscra-

pers, concert buildings or simply wherever a high

degree of comfort is desired.

Tandemrollenführung /

Tandem roller guide