14
Bandsaw
FB 540/640/740/840/940
4.5 Dust extraction
The machine has to be connected to a dust extractor.
The connected loads and the position of the cable glands
are depicted in the tables below and pictures 1+2.
The air speed at the connection point has to be a mini-
mum of 20 m/s for materials with a humidity less than
12 %.
The air speed should be increased to 25-28 m/s to ex-
tract dust from more humid materials (over 12 %).
Only flame resistant vacuum hoses can be used, conform-
ing to DIN 4102 B1 and any other safety regulations in
effect (See the FELDER catalogue!).
Model- Model ø 1 ø 2
FB 540 120 mm - - - -
FB 640 120 mm 120 mm
FB 740 120 mm 120 mm
FB 740 RS 140 mm 140 mm
FB 840 140 mm 140 mm
FB 940 / FB 940 RS 140 mm 140 mm
ø120. 814 cubic metres per hour Volume flow
(at 20 m/s)
917 Pa Stat. Vacuum
ø140. 1108 cubic metres per hour Volume flow
(at 20 m/s)
917 Pa Stat. Vacuum
Fig. 2: Connection ports Model FB 640 - 940
Specifications
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