Industrial vacuum cleaners
Cyclone filter CJF, CJF-V and CJF-HV
Compact, compressed-air cleanable cyclone filter for efficient filtration of welding fumes, grinding dust and cutting fumes. Three vacuum versions for standard and high-vacuum systems.
Cyclone-effect pre-separationCoarser particles are separated before reaching the filter cartridge, which extends the filter's service life.
Compressed Air TreatmentDifferential pressure-controlled compressed air cleaning keeps the pressure drop low.
Simple filter replacementFront-side access enables filter replacement with minimal dust generation.
Quicklock dust containerWheeled container ensures fast and clean emptying as well as easy manoeuvrability.
The Gram Clean Air cyclone filter CJF, CJF-V and CJF-HV is a compact, compressed-air-cleaned industrial filter that uses the cyclone effect for efficient pre-separation. The unit is suitable for filtering welding fumes, grinding dust, cutting fumes and dusty air.
Available in three versions: the standard CJF (up to 5,000 Pa), high vacuum CJF-V (up to 40,000 Pa) and extreme vacuum CJF-HV (up to 80,000 Pa).
Features and benefits
- Cyclone-effect pre-separation — coarser particles are separated before reaching the filter cartridge, extending the filter service life
- Optimised filter cleaning — differential-pressure-controlled compressed-air cleaning keeps the pressure drop low
- Easy installation and connection — supplied fully assembled, with cable and compressed-air hose
- Easy filter replacement — access from the front, minimal dust generation during replacement
- Quicklock dust container on wheels — quick and clean emptying, easily moved from one place to another
- Three vacuum versions — CJF (5,000 Pa), CJF-V (40,000 Pa), CJF-HV (80,000 Pa) — suitable both for standard filtration and as a filter for a central high-vacuum system
- Compact footprint — suitable for production environments with space constraints
Applications
The CJF cyclone filter is widely suited to various production processes:
- Filtering welding fumes and cutting fumes in metalworking
- Collecting grinding dust in woodworking and metalworking
- Cleaning dusty air in storage and production areas
- As part of a centralised filter system serving multiple workstations
- As a pre-separator ahead of fine filters in cases of high dust loads
- Use together with the Gram Clean Air high-vacuum unit HFU/HFU-F in a central system
Air volume range500 – 4 400 m³/h
Filter area13 – 42 m²
Maximum vacuum (CJF)5 000 Pa
Maximum vacuum (CJF-V)40 000 Pa
Maximum vacuum (CJF-HV)80 000 Pa
Cleaning SystemCompressed air + pressure differential control
Dust containerQuicklock, on wheels, with ø400mm system flange
DeliveryFully assembled, with cable and plug
Extended filter lifeThe cyclone-effect pre-separation reduces the load on the filter cartridge and extends its service life.
Low pressure dropOptimised compressed air purification keeps the pressure drop low and ensures efficient operation.
Easy installationThe device is delivered fully assembled with cable and compressed air hose.
Less manual maintenanceAutomatic differential-pressure cleaning during operation reduces the need for manual maintenance.
Flexible vacuum selectionThree vacuum versions are suitable both for standard filtration and as a filter for a central high-vacuum system.
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Common questions about this product.
Frequently asked questions
What is the air volume range and filter area of the CJF cyclone filter?
The CJF cyclone filter has an air volume range of 500–4,400 m³/h and a filter area of 13–42 m².
What is the difference between the CJF, CJF-V and CJF-HV models?
The models differ in maximum vacuum: the standard CJF up to 5,000 Pa, the CJF-V up to 40,000 Pa and the CJF-HV up to 80,000 Pa. All models share the same compact design and a filter area selection of 13–42 m².
Is the CJF cyclone filter suitable for use with the HFU high-vacuum unit?
Yes, the CJF-V and CJF-HV models feature a reinforced construction for high vacuum and are suitable for use with the Gram Clean Air HFU and HFU-F high-vacuum units. In this case, the CJF functions as a pre-separator, which extends the filter life of the HFU unit and reduces maintenance frequency.
How often should the CJF cyclone filter be serviced?
The maintenance frequency depends on the intensity of the dust load. The differential pressure-controlled cleaning system ensures automatic cleaning of the filter cartridge during operation, the dust container must be emptied regularly, and the filter cartridge is replaced less frequently.
What materials is the CJF cyclone filter suitable for filtering?
The CJF cyclone filter is suitable for filtering welding fumes, grinding dust, cutting fumes, and dusty air in production environments, such as in metal and woodworking as well as in storage and production facilities.
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