Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
The compact flat-type gearless WxG-18 lift machines are
designed for gearless traction sheave lifts with machine
room. They are intended for operation with a 2:1 or 1:1
suspension and are distinguished by their high efficiency,
extremely low noise and excellent operating characteris-
tics.
The WxG-18 gearless lift machines are designed solely for
use with electronic frequency converters.
The synchronous motor has been designed for various
rated torques, based on a number of overall widths. It
can also be supplied for several rated speeds, which can
then be further adapted to meet individual customer
requirements.
The machine comprises a grey cast iron frame (11), the
three-phase motor, traction sheave (4) and shoe brake
(1).
The shaft is very sturdily designed to accommodate the
high loads acting on the traction sheave. At the D end, it
is supported in a robust self-aligning roller bearing (6).
Six threaded holes (6) are provided on the front end
periphery, permitting a mechanical return motion device
to be fitted in case of an emergency.
The stable D end shield (5) is of spheroidal cast iron. At
the ND end the shaft is also carried in a self-aligning
roller bearing (15) which is preloaded by means of a cup
spring. The bearing is incorporated in ND end shield (13)
of grey cast iron. The two bearings are sealed with inter-
nal and external shaft sealing rings.
A separately driven low-noise fan (10) is mounted on top
of the ND end shield. The terminal box is arranged on
the right-hand side (viewed facing the shaft).
The mounting flange on the ND end shield incorporates
the speed/position measuring system (16).
The brake is connected to a AC- system via a control unit
which is included in the scope of supply. This over-exci-
tation rectifier can be installed, for example, in the con-
trol cabinet. The terminals for the brake monitoring con-
tacts, the motor terminals and the temperature detector
monitoring contacts are accommodated in the terminal
box.
The brake can be released manually, if required, by oper-
ating the manual release lever. The braking torque can
be adapted to the specific needs, if necessary, by adjust-
ing the two brake springs.
No brake lining wear occurs, since in modern drive equip-
ment such brakes are under friction only in an emer-
gency. Normally they are only applied when the machine
is at rest.
Seite/page
6
Datum/date
14.02.2006
Stand/version
0.17
Änderungen vorbehalten!
Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
2. Product description
3. Nameplate
Type code of
lift machine
Rated current
Rated speed
Rated torque
Serial no.
EC type-examination
certificate
Rated frequency
Weight
The nameplate of the lift machine is on the motor frame.
