Compressed-air cleaned filter

Gram compressed air cleaned filter systems consist of cyclone filters, compact systems and larger central filter units.

The range includes compressed air cleaned filters with air volumes from 500m³/h to 35000m³/h.

The programme includes W3-tested installations.

Gram plants are designed so that easy installation and operation as well as efficient filtration with low compressed air consumption are the main features.

Do you not know what you need? Please, contact our sales team that is ready to help you.

+45 74 52 30 75

Jet filter QFG

Energy-optimized filter unit for larger filtrations tasks. Used for the filtration of welding smoke, grinding dust, cutting smoke and dusty air containing metal, rock, plastic etc. or from handling various powder mixes.
  • Polluted air is led into the unit by top connection in raw air chamber. Thus securing downflow and pre-separation that minimize filter media load
  • Air is filtered through vertical filter cartridges with internal filter core for cleaning effect optimization
  • Differential pressure controlled filter cartridge cleaning through intetrated compressed-air system incl. automatic after-cleaning for optimized regeneration of filter cartridges
  • The clean air is led out through unit top connection
  • Dust is collected in dust container in unit buttom
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Cyclone filter CJF, CJF-V and CJF-HV

Compact compressed-air cleaned filter unit with cyclone effect and with timer control, mainly for the filtration of welding smoke, grinding dust, cutting smoke and dusty air.
  • Pre-separation by cyclone effect
  • Efficienct cleaning for the price
  • Simple mounting, connection and operation
  • Optimized filter cleaning ensures lower differential pressure
  • Quicklock-adjustable dust container on wheels
  • Easy filter replacement with limited dust generation
  • Reinforced construction for high-vacuum is available

Cyclone filter ACF, ACF-T and ACF-V

Energy-optimized compressed-air cleaned unit with cyclone effect for LARGER filtration tasks. Used for the filtration of welding smoke, grinding dust and dusty air.
  • Pre-separation by cyclone effect
  • Especially efficient cleaning
  • Intended for larger filtration task
  • Filters are replaced through front door in unit
  • Easy mounting, connection and operation
  • Quicklock-adjustable dust container on wheels
  • Reinforced construction for high-vacumm is available

Cyclone filter ACF W3

High-efficient cyclone filter with belonging fan, tested by internationally recognized institute according to weldings smoke class W3. Used for welding and cuttingg smoke.
  • Well-documented approved cyclone filter
  • Provides maximum protection of people and the outer environment
  • Simple mounting, connection and operation
  • Especially efficient filtration
  • Equipped with Gram Maxi325-jet pulse system
  • Specially dustfree filter replacement through front door in unit
  • Quicklock-adjustable, user-friendlich dust container on wheels
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Silo overpressure filter S-CJF

Compact compressed-air cleaned filter unit with timer control for filtration of dust from silos or filling stations.
  • Unit is placed directly on the silo/dust chamber, where dustfree pressure equalization is required..
  • Air is filtered through vertical-placed filter cartridge with internal filter core, which optimizes the cleaning effect.
  • Timer-controlled filter cleaning by integrated compressed-air system with tank and jet valves.
  • The clean air is led out to the surroundings by weather-protected outlet.
  • Cleaned dust is led directly back to the silo/dust chamber.
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Filterline FL

Complete and space-saving compressed-air controlled filter unit with Integrated fan, for the filtration of limited dust volumes at e.g. welding, cutting and grinding.
  • Complete, ”Plug & Play” filter unit with fan
  • Quick mounting, connecton and operation
  • Pre-separator is integrated in unit
  • Optimized cleaning effect of the filter cartridges
  • Automatic after-cleaning of filter cartridge provides longer life
  • Dust container suspended in Gram Quicklock-adjustable suspension

Filterline FL W3

Complete filter unit with fan, tested by an internationally recognized institute according to welding smoke class W3.Used for welding, cutting and grinding.
  • Complete, space-saving filter unit with fan
  • Fast mounting, connection and operation
  • Easy service access by front doors
  • Differential-pressure controlled filter unit with digital display
  • Gram Maxi325-jet pulse system
  • High-performance pre-separator increases filter life
  • Dustfree filter replacement by included sack with strips
  • Dust container suspended in Gram Quicklock-adjustable suspension
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Airtower modules PFL

Air distribution modules for application with Filterline type FL 52 and FL 104. Constructed for air cleaning in polluted premises, where recirculation is permitted.
  • Compact module, easy mounting
  • Silent: 68-70 dB(A)
  • Recirculation of cleaned air at low speed
  • Backdraft damper prevents dust backdraft at filter cleaning
  • Provides optimal breathing zone at the user
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