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ApplicationRAK-S-type appliance has been developed for cleaning the air from welding fumes arising at mobile or stationary work-places. The device is e� cient in capturing the dry, as well as viscous dusts, that arise during welding the oil-laden steel sheet and while using the anti-spattering liquids in large amounts. The device is not equipped with a waste container to collect impurities. Those are captured within the structure of the compact � lter, being the basic � ltering element in the device. Additionally, there is also a spunbond � lter, absorbing the part of gaseous contamination. At the moment the � lters reach the extreme pollution degree, replace them for new – they cannot be submit to regeneration.
StructureRAK consists of subsequent elements:• steel housing,• radial fan,• pre-� lter – wire mesh of 0,8x0,25 mm holes,• � ltering pad – class G-3,• compact � lter – class F-9,• active carbon impregnated spunbond � lter,• control unit,• castor assembly for the mobile version, or a set of brackets for the wall mounted version.
Operational UseMobile version (RAK-M) is designed for installation of extraction arms on its top cover. Stationary – wall-mounted version (RAK-H) extraction arms have to be installed at the housing bottom. The device is manufactured in three sizes, adapted for installing of one, two or three extraction arms of Ø160 mm diameter and of 2- or 3-metre-workrange. The appliance is oper-ated by means of a control unit. In the mobile version, the control unit is built-in on the housing, whereas for the stationary version, the control unit has to be installed, in a convenient place chosen by User. Periodical maintenance of the � lter consists in:• periodical cleaning the pre-� lter of wire-mesh,• periodical replacement of the � ltering pad and the carbon spunbond (every several months),• periodical replacement of the compact � lter (period depends on the intensity of use).
* On demand we deliver RAK-S � ltering units equipped with a pressure control that indicates the replacement necessity of the compact � lter (signal lamp).
Technical data
Type Part No.Volume � ow
[m³/h]
Maximum vacuum
[Pa]
Supply voltage
[V]
Motor rate[kW]
Acoustic pressure level [dB(A)] from distance Weight
[kg]
Quantity of the connections for
ERGO arms1 m 5 m
RAK-X-M/1-S 800O37 2350 2600 230 1,1 74 70 115 1
RAK-1-M/2-S 800O382500 2000 230 1,1 71 68 165 2
RAK-1-H/2-S 800O39
RAK-2-M/3-S 800O403050 2250 3 × 400 1,5 71 68 210 3
RAK-2-H/3-S 800O41Caution: 1. Volume � ow has been measured at the clean � lters. 2. Full presentation of the ERGO extraction arms is on separate catalogue cards.
RAK-1-M/2-S RAK-2-M/3-SRAK-X-M/1-S
RAK-SW
eldi
ng fu
mes
83
1 ferrvle Ø 160
2 ferrvleS Ø 160
Flow charts
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750
fan pressure in functionof volume flow
disposable pressure in function of volume flow
internal resistancesof the device
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750
fan pressure in functionof volume flow
disposable pressure in function of volume flow
internal resistancesof the device
Stat
ic p
ress
ure
[Pa]
Volume � ow [m³/h]St
atic
pre
ssur
e [P
a]Volume � ow [m³/h]
Stat
ic p
ress
ure
[Pa]
Volume � ow [m³/h]
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250
fan pressure in functionof volume flow
disposable pressure in function of volume flow
internal resistancesof the device
RAK-1-M/2-SRAK-X-M/1-S RAK-2-M/3-S
MOBILE VERSIONS
front view bottom view
RAK-X-M/1-S
front view bottom view
RAK-1-M/2-S
Welding fum
es
84
RAK-S
HANGING VERSIONS
front view upper view bottom view
RAK-2-H/3-S
front view upper view bottom view
RAK-1-H/2-S
front view widok z dołu
RAK-2-M/3-S
3 ferrvles Ø 160
2 ferrvles Ø 160
3 ferrvles Ø 160
Wel
ding
fum
es
85
Type Part No. Weight [kg] Dimensions AxBxC [mm] Class Filtration e� ciency [%] Remarks
FKR-X 838K12 17,72 610x548x292
F9 95,6
1 pc in RAK-X
FKR-1 838K09 22,14 762x610x292 1 pc in RAK-1
FKR-2 838K11 18,20 910x420x292 2 pc in RAK-2
Type Part No. Weight [kg] Dimensions AxBxC [mm] Class Filtration e� ciency [%] Remarks
FWR-X 838F72 0,18 610x548x50
G3 88In each device
is placed one � ltration pad.
FWR-1 838F67 0,20 762x610x50
FWR-2 838F68 0,25 910x840x50
Type Part No. Weight [kg] Dimensions AxBxC [mm] Remarks
FCR-X 838F74 0,30 610x548x20
In each device is placed one spunbond format.FCR-1 838F69 0,32 762x610x20
FCR-2 838F70 0,50 910x840x50
Active carbon impregnated spunbond
Filtration pad
Compact fi lterReplaceable fi lters
Welding fum
es