AGM - Magnetic Separators with Disks

The magnetic separators with disks AGM series are used to remove ferrous metallic particles, produced by different industrial processes and found suspended in liquid lubrocoolants. The filtration occurs by means of a rotating magnetic drum, which size is variable according to the flow rate of the liquid lubrocoolant to treat.

Based on the flow rate, the standard production of our magnetic filters is divided in:

• ‘LIGHT SERIES – TYPE AGM-1‘ - for flow rates from 50 to 500 lts/min;
• ‘HEAVY SERIES – TYPE AGM-2’ - for flow rates from 600 to 2.000 lts/min.

OPERATION

The liquid to be filtered is sent to the diffuser and is evenly distributed onto the rotating magnetic drum, which is rotated continuously by means of the gearmotor, retains the ferrous particles and by means of the mechanical action a large part of the non-ferrous particles contained in the lubrocoolant too. The layer of sludge accumulated on the magnetic disks is automatically removed by the special stainless steel scraper comb connected to a height-adjustable chute, which facilitates removing the sludge and conveying inside the collection bin. The optimal peripheral speed of the magnetic drum and the possibility of adjusting the height of the chute help the sludge to drip, which is then collected in the bin almost completely dry. The filtered liquid is discharged through the unloading area positioned on the bottom of the supporting structure.

ARD - Rotating Drum Filtration Systems with Fabric

The drum filtration systems ARD series use the non-woven fabric for removing the contaminant metal particles found suspended in liquid lubrocoolants and produced by different industrial processes.
Contrary to traditional gravity strainers, for which the filtering surface is developed on a flat surface, drum filtration systems type ARD develop the filtering surface around a drum, allowing to obtain wide filtering surfaces in reduced spaces even in presence of considerable flow rates of liquid to be filtered. Indeed, comparing to traditional flat bed gravity filters and with the same flow rate of liquid to be treated, drum filters dimensions are considerably lower and better degrees of filtration are achievable reducing the filtering fabric consumption.
The existing wide range of filtering fabrics and the flexibility in selection of the usable filtering fabric allow to achieve the requested filtration degree.
The drum filtration systems type ARD-A is also equipped with a motor pump directly connected in suction phase to the inside of the rotating drum, in order to increase the liquid crossing through the filtering fabric, from the outside towards the inside of the drum itself.
For the versions ARD-D and TR-ARD the drum filter is equipped with an oversized tank for the containing of the liquid to be filtered and for the preliminary decantation on the heavy metal particles contained into the liquid before they reach the rotating drum. On the bottom of the tank is placed a dredging chain that enables the automatic and continuous removal on the layer of sludge deposited during the settling phase.
The suction pump, directly connected to the inside of the drum, delivers the filtered liquid into a steel collection tank or into a pit.

Depending on the flow rate of liquid to be treated, the standard production of the drum filtration systems is divided as follow:

• ARD and ARD-A - for flow rates up to 3.000 lts/min.
• ARD-D - for flow rates up to 1.500 lts/min.
• TR-ARD - for flow rates up to 6.000 lts/min.

All our drum filtration systems can be equipped with magnetic separators for the liquid prefiltration of high content of ferrous contaminant.

OPERATION

The liquid to be filtered is sent to the flow breaker diffuser of the filter: the dirty liquid starts draining through the filtering fabric located outside the drum releasing on it the pollutant metal particles. When the filtering surface is entirely clogged by the contaminant particles, the liquid stops crossing through the filtering fabric: the level sensor operates the motor reducer that introduces new clean filtering fabric into the filtering area - also evacuating exhausted fabric and sludge into the collecting bin -, the liquid restarts draining into the frum and the filtration cycle restarts again.
The filtered liquid collected inside the rotating drum is delivered to the collection tank where is located the feeding pump for the filtered liquid delivery to the operating machine.

AU - Self-Cleaning Rotating Drum Filtration Systems

The self-cleaning drum filtration systems with micromesh AU series are used in mechanical machining for the filtration of coolants and liquids containing all types of contaminating particles. The filtering surface is given by circumference and width of the vat, while the degree of filtration is determined by type of micromesh used. The filtration systems AU series separate any type of ferrous or non-ferrous contaminating particles from the coolant. The self-cleaning rotating drum filters are completely automatic, without consumption of disposable filtering fabric and uses a permanent stainless steel micromesh, continuously washed from the inside with pressurised clean liquid. The filtration of liquid in the AU Series is carried out by means of pressure, due to the high hydrostatic head of the liquid exerted on the permanent micromesh and the drum. The construction features of the AU Series filtration systems during discharge phase allow to obtain a good drying of the sludge before they are evacuated from the filter.
The AU Series can be fitted individually, assuring an excellent efficiency, but can also be combined with any type of pre-filtration systems, such as magnetic separators and/or swarf conveyors.
Suitable for flow rates of 20 to 1600 lts/min. Can be fitted to single machines or centralised systems.

OPERATION

The liquid to be filtered is conveyed inside the filter. Following the filling of dirty water in the filtering area, the liquid starts to drain through the permanent micromesh, placed on the rotating vat, and therefore deposits the contaminants on its surface. This passage of liquid from the dirty liquid area (drum exterior) to the clean liquid area (drum interior), can be increased by the depression during the suction phase of a clean liquid pump connected to the drum and in continuous operation. On the sides of the rotating vat proper shaped parts guarantee a perfect seal on the drum of the micromesh avoiding seepage between dirty liquid and purified liquid.
The permanent stainless steel micromesh, housed on the rotating drum, is continuously washed from the inside by means a nozzle bar positioned over the level liquid. The micromesh washing is carried out with clean liquid take by means of pump from the interior drum or from a clean liquid tank.
The contaminating particles on the bottom of the dirty liquid area are conveyed by means of drag-chain placed on the bottom of the filter, and discharged into a sludge collection bin or in the swarf conveyor below.

C/CM - Filtration System with Filtering Fabric

In our flat bed gravity strainers C series filtration occurs by gravity and the used filtering mean - the non woven fabric - is capable to retain contaminating particles of any kind, both metallic and non-metallic particles produced by different industrial processes and found suspended in liquid lubrocoolants. The average degree of filtration that can be obtained varies according to the type of filtering fabric used and to the caking on the fabric itself due to the layer of accumulated sludge. The flow rate of lubrocoolant to filtrate determines the size of the gravity strainer and the extention of the filtering surface necessary for the purpose.

Based on the flow rate of the liquid to be treated, standard production of our series of gravity strainers is divided in:

• ‘NORMAL SERIES - TYPE ‘C’ - for flow rates from 50 to 500 lts/min;
• ‘WIDE SERIES – TYPE ‘CL’ - for flow rates from 250 to 1.500 lts/min;
• ‘OVERLAPPED SERIES– TYPE ‘CS’ - for flow rates from 500 to 4.500 lts/min.

All our gravity strainers can be equipped (upon request) with a magnetic filter so that the liquid to be filtered is subject to a preliminary treatment.
The gravity flat bed filtration systems equipped with magnetic separator CM series are used when there is a very high content of ferrous contaminant particles suspended in the liquid to be treaten.

OPERATION

The liquid to be filtered is sent to the diffuser and is evenly distributed onto the filtering bag created by the non woven fabric. The pollutant particles in the lubrocoolant are deposited onto the filtering fabric forming a layer of sludge (‘cake’) on it the thickness of which together with the type of filtering fabric used contribute towards defining the average degree of filtration that can be obtained.
As the thickness of the sludge accumulated on the fabric increases, a better degree of filtration can be obtained.
When the filtering fabric is caked in sludge, the passage of liquid through the filtering fabric is interrupted and the highest level of liquid in the filtering bag is reached.
The level sensor detects the rising liquid and actions the gearmotor, which powers the conveyor belt introducing new clean fabric into the filtering bag.
The liquid to be treated thus resumes draining, the level of liquid in the filtering bag decreases, the level sensor stops the gear motor and the filtration cycle starts again.
The conveyor belt moves the sludge and exhausted fabric away from the filtering areas and it falls into the collection bin.
Filtered liquid is collected in the tank underneath and sent to the manufacturing machine by the recirculation pump.

The coalescing oil skimmers COAL series take advantage of the phenomenon of coalescence for the removal of the wasted oil from the coolant tank, preventing the formation of bacteria and odors given by non-oxygenation due to the formation of a surface patina.

OPERATION

Into the liquid's tank is placed the immersed structure, which delivers the liquid to the skimmer. By exploiting the different surface tension of the oils compared to the one of the water, the clean liquid is poured back in the tank, while the exhausted oil is collected in a specific bin.

A.G.R. Filtri offers a wide range of filtering fabrics - the so-called "non-woven fabric" -, with broad choice both for weight, both in size.

A.G.R. Filtri offers both viscose fabrics both polypropylene fabrics:

• filtering fabrics AGR series:
viscose fabrics, weight range from 16 to 120 g/sqm, length from 500 mm to 2020 mm.

• filtering fabrics AGRK series:
polypropylene fabrics, weight range from 15 to 100 g/sqm, length from 500 mm to 2020 mm.

Other dimensions/weights available on request.

HFS - HYDROSTATIC GRAVITY STRAINERS WITH FILTERING FABRIC

Our gravity strainers with high hydrostatic head HFS series are used to remove pollutant particles of any kind, both metallic and non-metallic, produced by different industrial processes and found suspended in liquid lubrocoolants. Like in the gravity flatbed filters C series, filtration occurs by gravity and the filtration means used is the non-woven filtering fabric. But thanks to the high level of liquid the filtering bag can hold and the high pressure exerted by the liquid, the efficiency of the filtering fabric in the hydrostatic filters is considerable increased. Indeed, compared with traditional gravity flat bed strainers with the same flow rate of liquid to be filtered, the size of the HFS filter is considerably smaller and therefore obtains higher degrees of filtration, reducing the consumption of the filtering fabric.
The filtering surface is calculated based on the flow rate of lubrocoolant to be treated.

The standard production of HFS hydrostatic strainers is available for flow rates up to 3.500 lts/min.

All our hydrostatic strainers can be equipped (upon request) with magnetic filters so that the liquid to be filtered is subject to a preliminary treatment.
The hydrostatic filtration systems equipped with magnetic separator - HFS-M series - are used when there is a very high content of ferrous contaminant particles suspended in the liquid to be treaten.

OPERATION

The liquid to be filtered is evenly distributed onto the filtering bag by the diffuser. The pollutant particles in the lubrocoolant deposit on the filtering fabric forming a layer of sludge (“cake”). As the thickness of the sludge accumulated on the fabric increases a better degree of filtration can be obtained.
When the filtering fabric is caked in sludge, the passage of liquid through the filtering fabric is interrupted and the highest level of liquid in the filtering bag is reached.
The level sensor detects the rising liquid and actions the gearmotor, which powers the conveyor belt introducing new clean fabric into the filtering bag. The liquid to be treated thus resumes draining, the level of liquid in the filtering bag decreases, the level sensor stops the gear motor and the filtration cycle starts again.
The conveyor belt moves the sludge away from the filtering areas and it falls into the collection bin, while the exhausted fabric is rolled-up. The filtered liquid passes through an outlet situated in the lower part of the filter's structure and it is collected in the tank underneath the filter and sent to the manufacturing machine by a motor pump.

The oil skimmers with belt RN series are a simple and economical solution for removing wasted oil from the coolant tank, preventing the formation of bacteria and odors given by non-oxygenation due to the formation of a surface patina.       The choice of the type of oil skimmer essentially depends on the depth and the capacity of the liquid collection tank.

• 'Series RN/100' - belt width 100mm, for tanks depth up to 1500 mm.
• 'Series RN/500' - belt width 500mm, for tanks depth up to 3000 mm.

OPERATION

The belt is immersed in the liquid and is put in motion by a motor reducer. On the belt clings the wasted oil, which is then scraped from its surface, conveyed in a drain and collected in a specific tank.

The oil skimmers with disk RO series are a simple and economical solution for removing wasted oil from the coolant tank, preventing the formation of bacteria and odors given by non-oxygenation due to the formation of a surface patina.                                                                                   The choice of the type of oil skimmer essentially depends on the depth and the capacity of the liquid collection tank.                  The oil skimmers RO series is available witj disks of diameter from 350 mm to 1 m.

OPERATION

The disk is immersed in the liquid and is put in rotation by a motor reducer. On the disk clings the wasted oil, which is then scraped from its surface, conveyed in a drain and collected in a specific tank.

T - Chip Conveyors

The chips and sludge conveyors T series are used for the evacuation of all type of particles, contained in coolants used in grinding operations, work centers, transfer machines, automatic lathes, etc., but also used to centralise the conveying, the treatment and the storage of the swarf produced during mechanical machining.

Our conveyors are fully customizable on request, both for dimensions and inclination of the neck, both in terms of related accessories. The choice of conveyor type depends on the type of contaminants.

• TM Series - MAGNETIC CONVEYORS
used for ferrous and shredded particles.

• TR Series - DRAG-CHAIN CONVEYORS
used for ferrous and non-ferrous shredded or short-chip contaminating particles.

• TT Series - HINGED SLAT CONVEYORS
indispensable for aluminium and for ferrous and non-ferrous tangled or long-chip particles.

OPERATION

The liquid to be filtered is sent into the conveyor, where the liquid is separated from some of the pollutant particles. The prefiltered liquid, which is loaded into the adiacent tank, is then delivered by means of a motor pump to the filtration system or directly to the user point, while the pollutant particles are evacuated into the sludge collection bin.
The chips conveyors guarantee partial filtration of the coolant used and can be combined with any type of filtration system to obtain the grade of filtration desired.