System solutions for industrial filtration technology, coolant filtration and chip processing for the manufacturing industry
Ing. W. Gräf Filter- und Industrietechnik KG
3052 Innermanzing (AT) · Schmidtgasse 2New on Amplifa
About us
Ing. W. Gräf Filter- und Industrietechnik KG is an Austrian company for industrial filtration technology and environmental engineering, founded in Vienna in 1979 and headquartered since 2006 in Innermanzing in the Vienna Woods. Its product range includes coolant filtration with band, magnetic and compact filters, lift stations, skimmers and filter media, automatic emulsion filling systems as well as coolant management systems (FluidWorker) for machine tools. In addition, the company offers briquetting systems, size reduction technology, oil and emulsion mist extraction, chip handling, sludge dewatering, dust extraction/dry filtration and industrial air humidification. Band filters are manufactured in mild steel or stainless steel (NIRO) depending on requirements and achieve flow rates of up to 9,999 liters per minute. As a cross-manufacturer system integrator, Gräf works with international partner companies such as RUF, Polo Filtertechnik, Erdwich, ISI, Debus, Kugler and Condair and accompanies projects from consulting and laboratory testing for filter media selection through to planning, installation and commissioning. Customers come from mechanical engineering, metal processing, automotive, plant and chemical plant engineering, foundries, power plants as well as wood processing and the chemical industry throughout Austria.
- Site
- Innermanzing
- Processes
- Coolant filtration (band filters for coolant emulsions and oils), Band filters (coolant filtration, up to 9,999 liters/minute, in mild steel or NIRO version), Magnetic filters (pre-filters for band filters, operation without filter aids), Lift stations for coolant circuits, Band and disc skimmers and surface suction devices (oil separation), Filter media (2D and 3D nonwovens, standard widths 500 mm, 700 mm, 1,000 mm, 1,500 mm), Chip trolleys (models SW-200: 200 kg load capacity, 920x640x720 mm, approx. 0.2 m³; SW-400: 400 kg,, FluidWorker 50/150 (automatic coolant concentration control, UV disinfection)
- Materials
- Aluminium chips, Titanium, Magnesium, Stainless steel, Cast iron chips, Brass, Copper, Wood / wood chips
- Certificates
- Laboratory testing for filter media selection
- Founded
- 1979
- Industries
- Mechanical engineering, Metal processing, Automotive, Precision manufacturing, Plant engineering, Chemical plant engineering
- 01
Consulting and requirements analysis
- 02
Laboratory testing for filter media selection
- 03
System selection via partner network
- 04
Planning and configuration
- 05
Delivery and installation
- 06
Commissioning and support / filter accessories
Systems, Materials & Processes
Mild steel
Material for band filter housings in standard version.
Stainless steel (NIRO)
Version for band filters with increased corrosion protection requirements.
Aluminium chips
Input material for briquetting systems for chip compaction.
Stainless steel, steel and cast iron chips
Briquettable metal chips with improved remelting behaviour.
Brass, copper, titanium, magnesium
Non-ferrous metals and light metals for briquetting.
Wood chips and biomass
Raw materials for wood briquettes without binders, including miscanthus, straw and cotton.
Locations
Innermanzing
ATHeadquarters
- Band filters SKF/SB (Polo Filtertechnik)
- Magnetic filter MAF
- RUF briquetting presses up to 5,000 kg/cm²
- FluidWorker 50/150 (Wallenius Water)
- PROFI emulsion filling system (PetroFill)
- Oil/emulsion mist separators (ISI)
- Shredders and hammer mills (Erdwich)
- Chip vacuums and industrial vacuum cleaners (Debus)
- Dewatering containers (Kugler)
- Air humidification systems (Condair/Draabe)
Systems & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Coolant filtration (band filters for coolant emulsions and oils)Surface | – | – | – | – | – |
| Band filters (coolant filtration, up to 9,999 liters/minute, in mild steel or NIRO version)Surface | – | – | – | – | – |
| Magnetic filters (pre-filters for band filters, operation without filter aids)Surface | – | – | – | – | – |
| Lift stations for coolant circuitsSurface | – | – | – | – | – |
| Band and disc skimmers and surface suction devices (oil separation)Surface | – | – | – | – | – |
| Filter media (2D and 3D nonwovens, standard widths 500 mm, 700 mm, 1,000 mm, 1,500 mm)Surface | – | – | – | – | – |
| Chip trolleys (models SW-200: 200 kg load capacity, 920x640x720 mm, approx. 0.2 m³; SW-400: 400 kg,Assembly | – | – | – | – | – |
| FluidWorker 50/150 (automatic coolant concentration control, UV disinfection)Surface | – | – | – | – | – |
| Automatic emulsion filling (up to 64 machines, buffer tank 350 liters, piston mixing unit 2-10 %)Surface | – | – | – | – | – |
| Briquetting systems for metal chips (RUF hydraulic presses, press pressure up to 5,000 kg/cm²)Forming | – | – | – | – | Aluminium chips, Titanium, Magnesium, Stainless steel, Cast iron chips, Brass, Copper, Wood chips, Miscanthus, Straw, Cotton |
| Briquette packaging (manual to automated systems)Assembly | – | – | – | – | – |
| Shredders (chip size reduction, central and decentralised systems)Forming | – | – | – | – | – |
| Hammer mills (size reduction of hard-brittle materials)Forming | – | – | – | – | Electronic scrap, Aluminium profiles, Composite materials, Shredder light fractions, Circuit boards, IC components, Non-ferrous composite materials, Metal chips, Tire wire, Slag |
| Machine extraction (oil and emulsion mist, mechanical and electrostatic filters)Surface | – | – | – | – | – |
| Chip vacuums (compressed air or electric drive, with pre-separator)Assembly | – | – | – | – | – |
| Wet filtration (bag filters, sieve basket filters)Surface | – | – | – | – | – |
| Dust extraction systems / dry filtrationSurface | – | – | – | – | – |
| Industrial air humidificationSurface | – | – | – | – | – |
| Sludge dewatering (dewatering containers, screw presses, mechanical thickeners,Surface | – | – | – | – | Drilling sludge, Sand and gravel washing sludges |
| Laboratory testing to determine optimal filter mediaTesting | – | – | – | – | – |
25 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Briquetting press (hydraulic press) | RUF GmbH | – | Press pressure up to 5,000 kg/cm² | – | – |
| Band filter | Polo Filtertechnik GmbH Gravity filter SKF, inclined bed filter SB | – | up to 9,999 liters/minute | – | – |
| Magnetic filter | Polo Filtertechnik GmbH MAF | – | – | – | – |
| Lift station | – | – | – | – | – |
| Disc skimmer | Polo Filtertechnik GmbH SSK | – | – | – | – |
| Band skimmer | Polo Filtertechnik GmbH BSK | – | – | – | – |
| Chip trolley | Polo Filtertechnik GmbH SW-200 | – | 920x640x720 mm, approx. 0.2 m³, load capacity 200 kg | – | – |
| Chip trolley | Polo Filtertechnik GmbH SW-400 | – | 1200x950x1015 mm, approx. 0.4 m³, load capacity 400 kg | – | – |
| Chip trolley | Polo Filtertechnik GmbH SW-450 | – | 1200x1100x1015 mm, approx. 0.45 m³, load capacity 400 kg | – | – |
| Coolant concentration control and UV disinfection | Wallenius Water FluidWorker 150 | – | – | – | – |
| Coolant concentration control (5" colour display, USB, OPC-UA) | Wallenius Water FluidWorker 50 | – | – | – | – |
| Automatic emulsion filling system (PROFI, up to 64 machines) | PetroFill | – | Buffer tank 350 liters, piston mixing unit 2-10 %, Siemens S7 control, 9" touch screen | – | – |
| Packaging systems for briquettes | Strojplast | – | – | – | – |
| Shredder (chip size reduction) | Erdwich GmbH | – | – | – | – |
| Hammer mill | Erdwich GmbH | – | – | – | – |
| Oil and emulsion mist separators (mechanical and electrostatic) | ISI GmbH | – | Single systems to central systems | – | – |
| Chip vacuum (compressed air/electric drive) | Debus GmbH | – | – | – | – |
| Industrial vacuum cleaners, stationary suction systems | Debus GmbH | – | Electric or compressed air drive | – | – |
| Bag filters / bag filter systems | AR-Filtertechnik GmbH | – | – | – | – |
| Dust extraction systems and conveying technology | AVN GmbH | – | – | – | – |
| Air humidification systems | Condair Systems GmbH (Draabe) | – | – | – | – |
| Filter hoses, filter bags, industrial textiles | Fasse GmbH | – | – | – | – |
| Dewatering containers / lamella separators | Kugler GmbH | – | – | – | – |
| Filter systems for coolants and other liquids | Polo Filtertechnik GmbH | – | – | – | – |
| Centrifuges for chip and sludge drying (automatic pusher centrifuges) | Spyra GmbH | – | – | – | – |
Additional services
Quality
For difficult filtration tasks, a laboratory is available in which the optimal filter medium is determined and confirmed with test media. Projects are accompanied from consulting through to commissioning.
| Evidence | Innermanzing |
|---|---|
| Laboratory testing for filter media selection |
History
- 1979
Founded as a sole proprietorship in Vienna
- 2001
Conversion into a limited partnership (KG)
- 2006
New building and relocation to Innermanzing/Vienna Woods