Veeraja Industries Shivane, Pune, Maharashtra

Vacuum filters primarily work on Vacuum principle. Vacuum is created in a chamber by pump suction or ventury. The chamber forms the bottom portion of tank which receives the dirty fluid from machine. Filter media ( paper / mesh ) is laid on top of this chamber. Fluid passes through media to chamber. Dirt is collected on the media. When media chokes, vacuum increases which is sensed by switch. Dirt media is pulled out by geared motor.

Dirt collected is ejected out automatically with little fluid. Shell of the filter is fabricated in MS & is designed to handle working pressure of filter. Filter elements are SS304 wedge-wire screen candles, mounted vertically with their bottom ends open to dirty fluid & top ends closed. All candles are exposed to flow of dirty fluid, except one. Dirt is collected inside the candles. One of the candle's outlet is opened to backwash port by aligning rotary face seal to it. Backwash outlet valve is opened for a short time so that the dirt collected in this candle is let out to atmospheric pressure. Since large pressure differential is available between working pressure of filter & atmosphere, backwashing is very effective. When the preset pressure drop reaches (or time elapsed is complete), the rotary face seal is aligned with next candle outlet & backwash outlet valve is opened for a short time to effect backwashing of that candle. The process is repeated automatically to keep the filter clean & to eject the dirt. A recovery filter is provided to recover fluid ejected along with the dirt. Wedge-wire screen openings, number of working candles, candle sizes can be altered depending on following: Flow & viscosity of fluid, quantity & type of dirt etc. The filter housing can be designed to handle required working pressure. Filter presently developed has 8 candles, 1000 mm long X 100 mm diameter. It is designed for flow of 8000 LPM (480 m3/hr) of water based emulsion for filtration level of 100 microns. It is going to work as Roll Coolant Filter for a steel cold rolling mill.

Scraper Conveyer is a simplest device to handle course dirt in bulk. It can be designed in several forms: inserted in a machine tunnel or placed at the bottom of dirty fluid holding tank. It also can be used in combination with a verity of filtration separation devices.Simplest device to handle course dirt in bulk. Non consumables.Standard sized modules are mentioned in attached PDF catalogue.

Scraper Conveyor Scraper Conveyer is a simplest device to handle course dirt in bulk. It can be designed in several forms: inserted in a machine tunnel or placed at the bottom of dirty fluid holding tank. It also can be used in combination with a verity of filtration / separation devices. Wipers are attached to a moving chain placed in trough (tank) holding dirty cutting fluid. Sediment course dirt is moved along with the wipers in a bin placed at one end of trough. The sketch shows two basic types of conveyers. Type A is normally used in machine tools, in combination with a magnetic separator (optional) to handle finer magnetic dirt. Type B shows a scraper conveyer placed at dirty fluid holding tank, in combination with Up-flow drum filters (optional) to handle large quantity of non-magnetic dirt.     Features & Benefits Simplest device to handle course dirt in bulk. Non consumables. Can be used in combination with filtration and separation device. Totally automatic operation. Automatic jamming sensor. Forward – Reverse logic. Can be inserted in machine beds. Can be used as collection tank. Can be customized to suit your requirement. Standard sized modules are mentioned in attached PDF catalogue.   Applications  Gearbox Cover Drilling  Cylinder Head Cast Iron Machining  Cylinder Block Cast Iron Machining   Crankshaft Cast Iron Machining  Breakliner Cast Iron Machining 

A pickling line requires a tank to prepare the solution. Because of the fluid properties this tank is generally of stainless Steel material. For the proper functioning of the line, the fluid has to be prepared with a proper concentration. Mixing of the powder with the fluid has to be proper. A screw conveyor is used to drop specific quantity of powder in the tank. It has a hopper to store the powder. An agitator is used to mix the powder properly. A pumping station pumps the fluid back to the process. Components  Screw Conveyors  Agitator 

Galvanising line filtration system has many functions. It has to remove the scale and scum generated during rolling. The temperature has to be controlled along with flow and pressure. A Galvanising line system usually consists of a large tank. The dirty fluid enters into the dirty fluid compartment. Using baffles the complete flow is passed through Magnetic separator into the semi clean compartment. This fluid is then sucked by large pumps and passed through self-cleaning filter and PHE skid to control the temperature. A pressure control valve ensures constant pressure is supplied to the mill. The tanks have agitators to continuously mix the coolant. Belt skimmers are also mounted on the tank to remove the floating scum. To maintain the temperature of the tank, either electrical heaters are placed in thermic fluid tubes or the coolant is passed through housing heated by electrical heaters or steam. If finer filtration required then a different set of pumps are used to transfer dirty fluid to pneumatic vacuum filters.     Features & Benefits Complete in house design and manufacturing of all products required in the system Tank : Rounded corners to avoid accumulation and rusting in corners. With manholes, inspection hatch, railing and ladders Magnetic Separators : Vertical or horizontal candle Simple and rugged design for 24x7 operation Self-cleaning filter : Modular design Economical design replacing the costly stainless steel wedge wire screens PHE and pressure control skid : Plate type heat exchanger with automatic temperature control valve. Automatic pressure control valve with complete flow back pass arrangement during rolling direction changeover Agitator and Skimmer : Rugged design for 24x7 operation. Option of Individual frame with bottom bearing/bush for added stability Special blade design for proper mixing Heating options : Electrical heaters in tubes with thermic fluid placed inside tanks. Steam heating jackets inside tanks Forced circulation PHE with steam and PRV Forced circulation through heater placed in separate housings.   Fine filtration : Separate pumping station Pneumatic Vacuum filter New century design eliminates the blower

Standard filter are not able to provide very fine filtration of 1 micron or lesser is required. In such cases precoat filter is used. Precoating is a process of adding a graded powder to form a layer on the standard filter media. The layer provides a larger surface area which in turn increases the dirt holding capacity. It also generates a toroidal path for the fluid, thereby entrapping the finer particles. Precoat powder is added in controlled measure based on your application. Clean fluid is supplied to the machine after the precoating cycle is complete. A separate clean tank provides clean fluid to your machine while the indexing process is going on. Dirty fluid is fed under pressure in to inlet manifold. It is distributed equally in plates. Filter papers clamped & supported between plates separate the dirt & form a layer (cake). This effects finer filtration. Differential pressure is monitored in inlet and outlet manifold. At a preset level, the indexing cycle starts. First the inlet actuated valve is closed. Compressed air is pushed in the inlet manifold to remove the fluid inside the plates. This also purges the filter cake and makes it dry. Then with help of hydraulic or pneumatic cylinders the top plate is opened. A geared drive moves the belt which is supporting the filter cake. Once the complete filter cake is pulled out, the top plate closes and inlet actuated valve is opened. Normal filtration process begins again Features & Benefits Suitable for very fine filtration. Can be used with disposable and back-washable media. Filtration capacity: 100 l/min to 3000 l/min – used in series for larger filtration rates. Totally automatic operation. Compact Design. Can be customized to suit your requirement. Applications  Diesel Injector Nozzle  Cylinder Liner Honing  Ball Bearing  Taper Roller Bearing  Cylindrical Bearing  Tapping  .

Band filter are the simplest and oldest form of filters. Veeraja ECO Band filter is one more step towards additional simplicity. This band filter does not have a moving conveyor. This eliminates the maintenance concerns of jamming and breaking of conveyor .A standard magnetic separator can also be added to improve on the efficiency of the band filter.

Band filter are the simplest and oldest form of filters. Veeraja ECO Band filter is one more step towards additional simplicity. This band filter does not have a moving conveyor. This eliminates the maintenance concerns of jamming and breaking of conveyor. A standard magnetic separator can also be added to improve on the efficiency of the band filter. Filter media is laid on conveyor. This is fitted on tank. Dirty fluid drops on the media. Clean fluid is collected in the tank below and pumped back. When media chokes, level starts rising above the media. This is sensed by a level switch. Dirty media is conveyed out by geared motor.     Types Of Paper Band Filters Eco Type Paper Band Filters Conveyor Type Paper Band Filters Applications  Diesel Injector Nozzle  Cylinder Liner Honing  Ball Bearing  Taper Roller Bearing  Cylindrical Bearing  Tapping  Crankshaft Cast Iron Machining   Piston Rod Grinding  Water pump shafts Grinding  Diesel Injection Nozzle Grinding  Cylinder Head Cast Iron Machining  Cylinder Block Cast Iron Machining  Breakliner Cast Iron Machining  Bearing Inner Race and Outer Race Grinding 

When the process generates large quantum of chips a mesh drum filter comes in handy. Veeraja mesh drum have a unique seal design which increases the life of seal and is very maintenance friendly. Fluid with chips drops in cavity outside a mesh drum. It moves in the drum trough fine mesh, by gravity, leaving the chips on the mesh. A scraper conveyer, wrapping the mesh drum & scraping the outside cavity, carries the chips to a bin. On the way the fluid drips back to the tank. The conveyer movement also rotates the mesh drum. Clean fluid inside the drum is siphoned out to a clean fluid tank. From this it is pumped to the machine. Part of the pressurized fluid from pump is used to backwash the mesh drum. Features & Benefits Suitable for filtration up to 50 micron. Without consumables. Filtration capacity: 50 l/min to 5000 l/min. Individual filter panels can be removed for ease of maintenance. Can be isolated individually and removed for maintenance. Seal is away from sediment chips. No possibilities of seal getting damaged by chips Seal is of lesser diameter than conventional filter drum. It is possible to machine this seal & maintain correct dimensions Seal is flushed with clean fluid. This means the seal is more reliable to arrest fine particles. Continued flushing of seal. Smaller seal away from chip sedimentation. Ideal for individual as well as centralized system. Used in combination with Scraper conveyor for heavy dirt loads. Applications  Gearbox Cover Drilling  Pressure Die Cast Component Machining  Gravitataion Die Cast Machining 

For finer processes of material removal like grinding and honing, a finer filtration level is required. If the fluid is not filtered to the desired filtration level, the particles leave a mark on the surface. Normal gravity filter does not give the desired filtration level. Also the media consumption is very high. In such cases Vacuum filter is the ideal solution. With the help of vacuum, finer filter media can aslo be used for very fine operations. Features and Benefits Suitable for finer filtration. Paper consumtion drops by 80%. Can be used with disposable and back-washable media. Filtration capacity : 50 l/min to 6000 l/min ( 1600 gpm ) Totally automatic operation. Compact Design. Can be customised to suit your requirement.

Dirty fluid is fed under pressure in to inlet manifold. It is distributed equally in plates. Filter papers clamped & supported between plates separate the dirt & form a layer (cake). This effects finer filtration. Differential pressure is monitored in inlet and outlet manifold. At a preset level, the indexing cycle starts. First the inlet actuated valve is closed. Compressed air is pushed in the inlet manifold to remove the fluid inside the plates. This also purges the filter cake and makes it dry. Then with help of hydraulic or pneumatic cylinders the top plate is opened. A geared drive moves the belt which is supporting the filter cake. Once the complete filter cake is pulled out, the top plate closes and inlet actuated valve is opened. Normal filtration process begins again. A separate clean tank provides clean fluid to your machine while the indexing process is going on. For finer filtration we need to use finer filter media. But such media offers resistance to flow and hence cannot be used in gravity filter. If we could increase the differential pressure across the filter media, we could achieve finer filtration. A flat bed pressure filter does exactly that. Features & Benefits Suitable for fine filtration. Can be used with disposable and back-washable media. Filtration capacity: 100 l/min to 3000 l/min – used in series for larger filtration rates. Totally automatic operation. Compact Design. Can be customized to suit your requirement.     Applications  Diesel Injector Nozzle  Cylinder Liner Honing  Ball Bearing  Taper Roller Bearing  Cylindrical Bearing  Tapping 

Band filter are the simplest and oldest form of filters. Veeraja ECO Band filter is one more step towards additional simplicity. This band filter does not have a moving conveyor. This eliminates the maintenance concerns of jamming and breaking of conveyor. A standard magnetic separator can also be added to improve on the efficiency of the band filter.   Filter media is laid on perforated tray. This is fitted on tank. Dirty fluid drops on the media. Clean fluid is collected in the tank below and pumped back. When media chokes, level starts rising above the media. This is sensed by a level switch. Dirty media is pulled out by geared motor by using a simple racking mechanism.     Features and Benefits Suitable for fine filtration. Filtration capacity: 50 l/min to 300 l/min. Without conveyor. Very Low maintenance. Mounted on rollers. – Tank can be cleaned easily. Fits in 150 mm above tank level. Dirty paper wound on separate mandrel. Totally automatic operation. Common drive for magnetic separator. Very Compact Design. Ideal for individual machines  Diesel Injector Nozzle  Cylinder Liner Honing  Ball Bearing  Taper Roller Bearing  Cylindrical Bearing  Tapping  Crankshaft Cast Iron Machining   Piston Rod Grinding  Water pump shafts Grinding  Diesel Injection Nozzle Grinding  Cylinder Head Cast Iron Machining  Cylinder Block Cast Iron Machining  Breakliner Cast Iron Machining  Bearing Inner Race and Outer Race Grinding 

Magnetic coolant separator is device which cleans coolant liquid of very fine particles; it removes chips from the milling or grinding liquid. It has light and compact structure having strong magnetic power which can remove very fine particles. For precise grinding operations uninterrupted flow of oil is must. The magnetic separator ensures the uninterrupted flow of the liquid. A magnetic drum with close dense magnetic field is assembled on non-magnetic SS shaft. Magnetic pole shoes are projected out to form fins”, for better magnetic field alignment around the drum. The drum is rotated very slowly by a geared motor drive. A non-magnetic SS trough holds the dirty fluid close to drum. Magnetic dirt is picked-up by magnetic field & is attached to the finned drum. Slow rotary motion dumps the dirt collected on closely contoured scrapers. Extended scraper dumps the dirt collected to a bin. Size & number of fins is selected depending on the flow of fluid, viscosity of fluid & quantum of dirt to be handled. Positive rake scraper is selected for volatile fluid like water based emulsion while negative rake scraping is selected for oils. Negative rake scraper keeps the fluid away from bin.     Features & Benefits Suitable for magnetic separation from fluid. Filtration capacity: 50 l/min to 1000 l/min. Continuous operation. No consumables. Tapered disc for high magnetic concentration. Rare earth magnets can be used for added efficiency. Ease of maintenance. Ideal for individual machines. Applications  Gearbox Cover Drilling  Cylinder Head Cast Iron Machining  Cylinder Lock Cast Iron Machining  Piston Rod Grinding  Water pump shafts Grinding  Diesel Injection Nozzle Grinding  Bearing Inner Race and Outer Race Grinding 

A disc skimmer is very useful for small tanks with no level variations. Due to robust and simple design it is generally preferred for small individual tanks. This type of skimmer uses disc instead of belt. The skimmer frame structure is mounted on the top of tank coolant collection tank. A stainless steel disc is dipped in coolant surface from top of the tank. The Disc rotates in clockwise direction. Oily scum adheres to the disc surface and wiped and dumped in scum arresting bin. Disc Skimmers using steel discs of Dia-350MM (Depth 100MM) Model. We also provide Split type using disc Dia-425MM (Depth 250MM) with Chain drive mechanism to split the Disc from motor center to shift the Disc downwards to get more depth using same disc dia. All small models are having built with decanter tray arrangement to further separate the oil from the collect Skimmed mixture and water ETC mixture to return back the coolant, Washing liquid etc. back to the tank. Only pure oil is collected.     Features & Benefits Used for removing un-emulsified oil. Filtration capacity : 5 l/hr to 20 l/hr Continuous cleaning operation. SS304 disc. Ease of maintenance. Tank Top mounting. Single drive. Very compact. Ideal for individual machines.      5 HI Rolling Mill  Tandel Rolling Mill  Stainless Steel Rolling  Aluminium Rolling  20 HI Rolling Mill   Cylinder Head Cast Iron Machining  Cylinder Block Cast Iron Machining  Breakliner Cast Iron Machining  Precoating Line  Taper Roller Bearing

Swarf is generated in any type of material removing process. The swarf generated in machining is typically is of high volume and weight. Transportation of these chips from the point of generation to the scarp yard is a very tedious, time consuming and labourious job. Leaking coolant from these chips also makes the shop floor look dirty. If these chips generated are curly it adds to these problems. Veeraja provides complete solution of swarf removal from machine bed , common conveying systems, chip crushers and chip briquetting machines.     Features & Benefits Made to order solution Sizing and selection of ideal components is done based on type of chips and quantity of chips generated. Integration of all components in respect of mechanical and electrical safety. Built in PLC Controlled electrical and mechanical safety with Auto conveyor Jamming logic. Complete end to end solution Components  Chip Briquetting  Scraper Conveyor  Cleat conveyors   Chip Crushers  Screw Conveyors 

Grinding process is used to generate better surface finish on components. Alongwith the removal of metal particle, the grinding wheel is also consumed. If proper filtration is not provided these particles escape the filtration system and generate scratch marks on the surface deteriorating the Ra and Rz values. The particles also clog the grinding wheel, which needs to re-dressed frequently. This increases the consumption of the grinding wheel. A CFS for Grinding process is sized based on wheel grit size, viscosity of fluid and material of component. As the viscosity increases or the grit size becomes finer, the flow velocity through filter media has to be reduced to achieve desired results. A CFS for grinding is similar to indivisual filtration system but at a much larger scale. Dirty fluid alongwith grinding muck falls into the vacuum filter. Dirt cake is generated on the filter media ( check the actual working ). Clean fluid is directly pumped back to the machines.       Features & Benefits Multi cutter chip cutter for built mechanical and electrical safety. Indivisual cutter can be assembled in reverse way to expose second cutting edge. Indivisual cutter can be replaced. Large dirty tank gives sufficient time for the chips to settle. It also improves heat dissipation. Independently rotating magnetic drums with finned pole plates increase the magnetic density. Multiple drums and drums can be isolated individually. Our unique pole plate design and scraper arrangement improves magnetic separation efficiency and ease of maintainence. Built in PLC Controlled electrical and mechanical safety with Auto conveyor Jamming logic.

Aluminium is vastly used in automobile components. Various operations like drilling tapping on such components generate large quantum of chips. Individual filtration system are prone to breakdowns and do not give required filtration levels resulting in low coolant life.In a CFS, Dirty fluid along with chips is collected in the dirty tank. This tank has a continuously moving scarper conveyor which removes the chips that settle down. A rotating mesh drum is placed inside this tank. The fluid passes through the mesh drum while the chips are separated on the outside. The filtered fluid drops into a clean tank. Clean fluid pump supply pressurized fluid to the machines. Sizing of the tanks, mesh drum and pumps is done based on your total flow requirement. In addition fine filter housing can be provided for through spindle coolant.     Features & Benefits Large dirty tank gives sufficient time for the chips to settle. It also improves heat dissipation. Single point chip collection. Independently rotating mesh drum with inward and outward flushing nozzle. Multiple drums for larger systems. Drums can be isolated individually. Our unique seal design reduces the seal size. Multi paneled drum for ease of mesh maintenance. Built in PLC Controlled electrical and mechanical safety with Auto conveyor Jamming logic. Skimmers, Week end agitation, VFD can be added with further enhance the system. Customized design to suit your specific requirement. Components   Mesh Upflow Drum Filter Scraper Conveyor

Cast Iron is used for most major engine components and motion transmission. Various operations like drilling tapping and turning on such components generate large quantum of chips. Indivisual filtration system are prone to breakdowns and donot give required filtration levels resulting in low coolant life. In a CFS, Dirty fluid along with chips is collected in the dirty tank. This tank has a continuously moving scarper conveyor which removes the chips that settle down. The coolant then passes through drum type magnetic seperators mounted on the side walls of the scraper conveyors. This ensures that the complete flow passes through a dense magnetic grid. The filtered fluid drops into a clean tank. Clean fluid pump supply pressurized fluid to the machines. Sizing of the tanks, magnetic drums and pumps is done based on your total flow requirement. In addition fine filter housing can be provided for through spindle coolant. Features & Benefits Large dirty tank gives sufficient time for the chips to settle. It also improves heat dissipation and single point chip collection. Independently rotating magnetic drums with finned pole plates increase the magnetic density. Multiple drums for larger systems. Drums can be isolated individually. Our unique pole plate design and scraper arrangement improves magnetic separation efficiency and ease of maintainence. Independently rotating magnetic drums with finned pole plates increase the magnetic density. Multiple drums and drums can be isolated individually. Our unique pole plate design and scraper arrangement improves magnetic separation efficiency and ease of maintainence. Built in PLC Controlled electrical and mechanical safety with Auto conveyor Jamming logic. Skimmers, Week end agitation, VFD can be added with further enhance the system. Customized design to suit your specific requirement.

Steel because of its ductile and tensile strength is widely used in auto component industry. But steel machining generally generates long curly chips. These chips are difficult to handle and donot flow with the help of pressurized coolant flow. Due to this restriction making a CFS was always a challenge. Veeraja has now developed a unique chip cutter which can be attached to the outlet of individual chip conveyor of each machine. This chip cutter shreds the steel chips ( watch video ) into smaller manageable size. These can now be conveyed using traditional methods of gradient gravity flow. In a CFS, Dirty fluid along with chips is collected in the dirty tank. This tank has a continuously moving scarper conveyor which removes the chips that settle down. The coolant then passes through drum type magnetic seperators mounted on the side walls of the scraper conveyors. This ensures that the complete flow passes through a dense magnetic grid. The filtered fluid drops into a clean tank. Clean fluid pump supply pressurized fluid to the machines. Sizing of the tanks, magnetic drums and pumps is done based on your total flow requirement. In addition fine filter housing can be provided for through spindle coolant.     Features & Benefits Multi cutter chip cutter for built mechanical and electrical safety. individual cutter can be assembled in reverse way to expose second cutting edge. individual cutter can be replaced. Independently rotating mesh drum with inward and outward flushing nozzle. Large dirty tank gives sufficient time for the chips to settle. It also improves heat dissipation. Single point chip collection. Independently rotating magnetic drums with finned pole plates increase the magnetic density. Multiple drums and drums can be isolated individually. Our unique pole plate design and scraper arrangement improves magnetic separation efficiency and ease of maintainence. Built in PLC Controlled electrical and mechanical safety with Auto conveyor Jamming logic. Skimmers, Week end agitation, VFD can be added with further enhance the system.

Honing is a very material removal process used to generate better surface finish on components. If proper filtration is not provided these particles escape the filtration system and generate scratch marks on the surface deteriorating the Ra and Rz values. A CFS for Honing process is sized based on grit size, viscosity of fluid and material of component. As the viscosity increases or the grit size becomes finer, the flow velocity through filter media has to be reduced to achieve desired results. Dirty fluid alongwith grinding muck falls into the vacuum filter. Dirt cake is generated on the filter media ( check the actual working ). Clean fluid is directly pumped to next stage of filtration system. In this stage either a backwashable candle filter or precoat filter is used based on the process requirement. These filters generate a filtration level of 1 micron. The filtered fluid is stored in tanks from where a different set of pumps delivers it to your machines.If the muck generation is very low, the first stage filtration of vacuum filter is eliminated and only the finer filters are used. Features & Benefits Very fine filtration of 1 micron is achieved. Magnetic separator and Vacuum filter can be added to reduce the load ion finer filtration. Options of finer filter with consumables and without consumables available. Built in PLC Controlled electrical and mechanical safety with completely automatic working logic. Week end agitation, Chillers, VFD can be added with further enhance the system. Customized design to suit your specific requirement. Components  Backwashable Candle Filter Magnetic Drum Separator   Vacuum Filter  Precoat Filter 

Band filter are the simplest and oldest form of filters. Because of its simplicity in design it is still preferred choice for many application. Also check ourCompact Vacuum filter   Filter media is laid on conveyor. This is fitted on tank. Dirty fluid drops on the media. Clean fluid is collected in the tank below and pumped back. When media chokes, level starts rising above the media. This is sensed by a level switch. Dirty media is conveyed out by geared motor.   Features and Benefits Suitable for fine filtration. Filtration capacity: 50 l/min to 300 l/min. Without conveyor. Very Low maintenance. Mounted on rollers. – Tank can be cleaned easily. Fits in 150 mm above tank level. Dirty paper wound on separate mandrel. Totally automatic operation. Common drive for magnetic separator. Very Compact Design. Ideal for individual machines Applications  Diesel Injector Nozzle  Cylinder Liner Honing  Ball Bearing  Taper Roller Bearing  Cylindrical Bearing  Tapping  Crankshaft Cast Iron Machining   Piston Rod Grinding  Water pump shafts Grinding  Diesel Injection Nozzle Grinding  Cylinder Head Cast Iron Machining  Cylinder Block Cast Iron Machining  Breakliner Cast Iron Machining  Bearing Inner Race and Outer Race Grinding   

Gravity filters take a large shop floor area. When there is restriction in space available a Compact band is suggested. As the dirty fluid is transferred using a pump, this filtration system can be placed away from the machine also. In this filter the filter paper is held between a pair of sealing discs & a permeable support belt. Dirty fluid is dropped in the trough formed with filter paper at the bottom. The fluid passes through the filter paper leaving the dirt on it. The layer of dirt gathered on the filter paper achieves finer filtration. The filter is mounted directly on top of the tank, letting clean fluid in the tank. As the filter paper chokes, the fluid level above the filter paper rises. This activates a level switch, starting a drive coupled to the rollers, supporting the permeable support belt. This ejects part of the dirty filter paper & dirt to bin, pulling in clean filter paper from the roll.

Gravity filters take a large shop floor area. When there is restriction in space available a Compact band is suggested. As the dirty fluid is transferred using a pump, this filtration system can be placed away from the machine also.In this filter the filter paper is held between a pair of sealing discs & a permeable support belt. Dirty fluid is dropped in the trough formed with filter paper at the bottom. The fluid passes through the filter paper leaving the dirt on it. The layer of dirt gathered on the filter paper achieves finer filtration. The filter is mounted directly on top of the tank, letting clean fluid in the tank.