82

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