Alimak Scando 650 DOL, Техническое описание

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Projecting hoist mast
Generally following selection process is used:
1. Type of mast section 3. Type of mast tie
2. Number of mast sections 4. Number of mast ties
Hoist model – i.e. load capacity and speed are assumed to be
known.
1. Type of mast section
Determined by the capacity of the hoist and whether the mast
will be provided with one or dual cars as well as the lifting
height. See further information on following pages.
2. Number of mast sections
Lh
Determined by required lifting height (Lh) = 1.508 meter and
the necessary number of extra mast sections depending on:
Whether the hoist will be installed on a concrete slab at ground
level.
– without counterweight equipment = 3 extra mast sections.
– with counterweight equipment = 4 extra mast sections.
Whether the hoist will be installed with an extended enclosure
or with a foundation pit below ground level.
– without counterweight equipment = 4 extra mast sections.
– with counterweight equipment = 5 extra mast sections.
3. Type of mast ties
Determined by whether there will be a single or dual car hoist
and whether counterweight equipment and/or vertical pipes will
be used. See table below:
4. Numbers of mast ties
Determined by tie distance and overhang at various maximum
lifting height. See tables in the end of chapter.
ALIMAK 34796 - 1/01
H
1
Mast tie
Type S1A X
Type S2A X X X
Type S3A X X X X
Type R2A X
X = Possible combinations
The selection of ties depends also on the length of tie required tie distance.
For detailed specifications see heading ”Mast ties”.
h 2
Counterweight
Hoist car
Vertical pipes
Mast
h 1