Main features of this collector are: high filtering capacity, maximum efficiency, ease of use, small space requirement considering its filtering surface, self-cleaning system, electric panel, cable and plug, ready to be used.

Structure

MFC11 collector consists in self-supporting panels of sturdy galvanized steel, processed by numerically controlled punching machine and pressformed by 6-axis bender. All panels are trimmed with silicone sealant and bolted together with high-strength bolts.
The central body contains the real filtering heart of the machine: cartridged and tank.
On the aspiration side, it is possible to make opens (upon request) to connect flexible pipes or a self-supported arm.

Filtering cartridges are made of polyester fabric (antistatic upon request), produced using a spunbonded procedure which ensures no variation on air permeability and allows greater filtering efficiency and high stability. Electrical conductivity on the fabric surface is obtained thanks to aluminium powder application, which mantains the fabric porous.
This kind of process is suitable to remove electric charges given by powders to be filtered, and by them transmitted to the filter media.
Cartridges’ self-cleaning system consists in compressed air backwash. It is a totally automized system, equipped with storage tank.

Valves are of anodized cast aluminum and are suit of bulkhead fitting totally in stainless steel. The membrane is instead of special rubberized canvas marked by very high mechanical resistance. Tank is equipped with threaded connection fittings for power supply, lower connectors with condensate drain pipe. Cartridge access door on the top of the collector eases cleaning and maintenances. The door is a press-formed panel closing with sealing gasket. The integrated electric aspirator is specifically designed and it is made up of directly coupled engine and impeller. In its upper part, there is the air exhaust open with rectangular outlet suitable to connect a pipe (available on request). Powders are extracted through a hopper and collected in the drawer, or in a plastic bag, located in the lower part container (optional). Cartridge filter collector MFC11 on trolley is delivered equipped with automatic circuit breaker to control aspiration and wheels.

L'articolo Cartridge filter collector for fumes and dust on trolley sembra essere il primo su Gamma impianti.

Nowadays, active carbons are employed in many fields to deodorize and abate solvents:

• SOV abatement in painting booths
• washing tanks with SOV
• fiberglass workings
• printings and serigraphs
• waste and food sectors
• gluing lines
• deodorization of sewage lifting stations
• general odour reduction (mercaptans, solvents, etc.)
• filtration of organical solvents, sulfur compounds, etc.
• fumes and dust mixed pollutants (welding)

Air flow needs always to be mechanically pre-filtered and only later treated with active carbons, so to make carbons’ life longer.
Active carbons filters designed by Gamma impianti are sized considering contact time between air and absorbent material, which cannot be under specific thresholds dictated by laws.

L'articolo Activated carbons sembra essere il primo su Gamma impianti.

Extraction of welding fumes and polishing powders produced during metal workings, by capturing them as close as possible to the polluting source as required by the law.

Problem

The customer asks for a powder extraction system capable to grant flexibility of work, taking into consideration that welding and grinding stations sometimes work at 30% of their potential. Hence, it is needed a system working in efficiency in a range of capacity from 29000 mc/h down to the decrease wanted, with no electrical power waste.
Technically, the challenge consists in aspire correctly powders from polishing stations, which scatter micropowders quickly and not easy to catch with classical systems as suction arms and hoods.

Solution 

A customized pinpoint extraction system with fumes and polishing powders capture on each working station has been designed and installed through suctions walls with side and upper containments to optimize their capacity.
Welding fumes problem has been solved with articulated suction arms diam.160mm equipped with arm extenders to enlarge the working area.
All extraction stations are connected through a network of galvanized circular section steel pipe, which also reaches a cartridge filter with centrifugal fan with simple inlet located outside the production building. An electrical panel in compliance with Industry 4.0, with inverter and pressure reading, controls actual extraction capacity within pipes, so to control also power employed by the fan and reach maximum energy saving.

Design and development

A customized design of an extraction system like this involves an analysis of plant’s productive needs and layout. Afterwards, our Technical Department develops the project, in this case it consists in:

• Air flow speed measurement, both during extraction and pipe-crossing.
• Calculation of the total pressure losses depending on the filter piping path used.
• Selection of suction walls, benches and arms, so to facilitate operators during their job and, at the same time, capture fumes and powder as close as possible to their source.
• Design and production of special fixtures customized on the plant setting.
• Filter and fan sizing, taking into account the total capacity of the plant and pressure drop of systems connected to it.
• 4.0 electrical panel designed to control the entire system, including automized fan-speed managent with inverter. This modifies in real-time capacity according to how many stations are actually working. All this to reach maximum energy saving.

System in compliance with Industry 4.0

A powder extraction system, to be in compliance with Industry 4.0, must be controlled by computerized systems or managed via sensors and drives. In this specific case, the following features has been implemented, allowing the customer to deduct 50% of the total cost.

• automized fan-speed control with inverter, so to reduce current consuption when needed.
• control on filter clogging level through real-time warning via e-mail, sent to the maintenance service.
• remote and optimized integrated systems management, with anomaly warning.
• anomaly and threshold levels control and warning of each sensors of the system, like rotary air locks, discharge screw or fire sensors.

Extraction systems reference standard

D.lgs. n. 81 from 2008 “Protection of health and safety at the workplace” subsitute of previous D.P.R. n. 303/56 “general hygiene rules for work”, D.P.R. n. 547/55 “Rules for prevention of accidents at work” and DL n. 626/94 “Implementation of the EEC Directives on the improvement of the safety and health of workers”.

L'articolo Metal grinding and polishing powder extraction system sembra essere il primo su Gamma impianti.

To grant flexibility and energy saving, an inverter system with pressure reading within ducts controls the aspiration capacity of the system and the power used by the fan.

Research & Development

Customized design of a centralized extraction system with pinpoint uptake involves an analysis of plant’s productive needs and layout. Afterwards, our Technical Department develops the extraction system project, consisting in:

• Sizing of the correct air speed both during capture of fumes and crossing the extraction channels with the consequent calculation of the total pressure losses, depending on the piping path used.
• Selection of the extraction arm and its related extender, so as to ease the welder’s work and, at the same time, capture fumes as close as possible to their source.
• Using different types of extraction hoods on the articulated arms, depending on the work to carry out and therefore on the capacity needs.
• Selection of the fixing points of piping and arms in the production room, with subsequent development of customized brackets.
• Selection of the simple extraction centrifugal fan by considering the overall plant capacity and the load losses of the systems connected to it.
• Design of the general electrical panel board for plant control, including automatic adjustment of fan revolutions with inverter system, that changes the work capacity real time depending on the actual number of workstations used, for the maximum of energy saving.

Industry 4.0 tax credit

Our welding fumes extraction system are designed and built with technology 4.0, so to benefit of 50% tax credit along the entire 2021.

Legal references

D.lgs. n. 81, 2008 “Health and safety protection at work” replacing previous D.P.R. n. 303/56 “General norms for hygiene on work”, D.P.R. n. 547/55 “Prevention of accidents on work”  and Legislative Decree n. 626/94 “CEE guidelines about safety and health improvement in the workplace”.

L'articolo Welding fumes extraction sembra essere il primo su Gamma impianti.

Grinding processes expose operators and the environment they work in to fumes and dust potentially harmful because of their smaller grain size. Furthermore, grinding powder can damage machines and electronic devices within the workshop.
These problems can be solved by a properly dimensioned extraction plant. Grinding powder may disperse and settle down in every corner of the working area. For this reason, it is necessary to extract powders before they reach the operator, in order to prevent his/her and machines contamination.

Solutions: extraction systems for grinding and polishing

Grinding and polishing produce fine powder with small grain size and high volatility, besides normal metal remainings falling on the floor.
To extract harmful powder, normally operators have at heir disposal an extraction booth in front of their stations so to leverage rotational tools dynamic. But when pieces to be worked are tiny, the best solution to protect the operators is to extract fumes directly from the plan and the frontal they are working on (whatch the video, here) so to not disperse powder in the environment.
All this is possible with a suction bench for fumes and dust connected to the extraction system or independent and equipped with fan and filters.

Know applications and measure safety needs

Suitable gear for fumes capture, filtering mode and personal protections depend on the materials you need to work and on your productive layout. Hence, it is important to analyze the situation together with your safety manager.
The main goal of a centralized extraction system is to direct all pollutants in a unique industrial purifier, normally located outside the building, near to the fan and fireplace of emissions in atmosphere, so to optimize space and maintenance works.
Purifier employes a static polyester cartridge filter water- and oil- repellent specifically designed for fumes and dust from mixed metal workings, or a bag filter when a high-filtering surface is needed.

L'articolo Aspiration for grinding sembra essere il primo su Gamma impianti.

Easy and convenient functioning

GBP bench includes a ribbed work plan, as shown in the picture below. This plan is designed to bear big loads and grant maximum efficiency in aspiring fumes and powder.

Ribbed work plan

Fume and powder are aspired by the work plan, which is kept in depression by the air flow towards inside together with the frontal punched panel.

Structure

• Structure made of modular panels in press-bent galvanized sheet iron bolted together. On its side there is a circular hole for exhaust air, to connect discharge pipes. Extra: junction to connect the bench to a centralized extraction system.
• Support and work plan with reinforced ribbed structure and external side frames to unload weight on the floor.
• Frontal box of top-quality galvanized steel sheet.
• Collect drawer of press-bent galvanized sheet to collect major drosses and accidentally fallen objects.

Other models

GBF – aspiration bench with collect drawer and pocket filters, to be connected to an extraction system with fan.

GBV – suction bench with pocket filters and fan, ready to use, easy to connect to a pipe for external ejection, or provided with silencer to recycle filtered air in the environment.

GBC – suction bench with cartridge filters, automized compressed air cleaning and fan, to be connected to a pipe for external ejection, or provided with silencer to recycle filtered air in the environment.

Available on-demand:

• without side/frontal bulkheads, or special sized bulkheads
• covered in varnished metal sheet, colour of your choice
• equipped with ATEX fan and engine

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ADVANTAGES

• Quick: fumes suction straight from the source thanks to a high flow rate.
• Filtration: with absolute filter H13 ≥99.95%.

How the purifier works Pollutants are aspired by the suction arm. Then, pollutants are filtered to 99,95% of efficiency while crossing the purifier. Once air is clean, it is returned back into the environment via grids located on both sides of the machine.

Environment safety and certification

As requested by norms, level of clogging is constantly monitored by a system with a led signal, which advise when it is necessary to clean or substitute filters.

Accessories

• Connection for external ejection of filtered air.

Technical data

Rated capacity 1.500 mc/h
Engine power 1,5kW 220/1/50
Total weight 150 kg ca
Filtration:
Stage 1 – sparkproof metallic filter G3
Stage 2 – acrylic filter G4 (following EN 779:2012)
Stage 3 – absolute filter H13 ≥99.95% (@ MPPS following EN 1822:2009)

Standard equipment

• Brackets fot wall-mounting.
• Electrical panel in accordance with CE rules, with on/off switch for ventilation and warning led for filter clogging.

Contact us for a quotation!

L'articolo Pensile air purifier for welding fumes sembra essere il primo su Gamma impianti.

Welding fumes and dust must be extracted paying special attention to the kind of work the operator has to execute, hence his/her position in relation to the machine.  Any mobile welding fumes extractor should take into account this fundamental parameter, so to extract fumes close enough to the source with its self-supported suction arm.

Watch our mobile welding fumes extractor at work:

It is imperative to use mobile welding fumes extractor designed in compliance with the reference regulations (D.Lgs 81/08).

Legislative decree no.81, April 9th 2008 (a. IV p. 2.1.5)
Aspiration of gas, steams, odour and fumes must take place as close as possible to their source. Occupational exposure limits lays down concentration thresholds which cannot be exceeded in the air breathed by operators. Those values derives from scientific data provided by the Board of Health, with the aim to limit presence of powders within working environments.
Occupational exposure limits must be respected according to each element composing welding fumes.

SPECIAL WEB PROMOTION: read more about it!

Mobile welding fumes extractor purifies air from fumes, dust and gases containings dozens of harmful chemicals. Those remain in the environment as micro-powders, metal particles or metal derivatives (as oxides) and filler metals (as electrodes, rod electrodes, lead, welding powder, etc.), or they are removed later by coatings as varnish, upholstery and detergent.

Our efficient and low-budget solution

Welding fumes extractor MFU can be easily moved where it’s needed thanks to compact size, wheels and convenient handlings. Once there, it aspires fumes through its self-supporting suction arm ending in a hood with handling, to extract emission straight from the source.

ADVANTAGES

• Quick: fumes suction straight from the source thanks to a high flow rate.
• Mobile: it can reach many welding working spots.
• Filtration: with absolute filter H13 ≥99.95%.
• In compliance with CE norms.

How the mobile purifier works MFU16 aspires pollutants from a flexible pipe or a suction arm. Then, pollutants are filtered to 99,95% of efficiency while crossing the purifier towards the bottom. Finally, any odour is absorbed by active carbons. Once air is clean, it is returned back into the environment via grids located on both sides of the machine. Environment safety Level of clogging is constantly monitored by a system with a led signal, which advise when it is necessary to clean or substitute filters. Easy to use Its light 3 mt. suction arm with hood, handling and flexible pipes can be moved effortless.

Technical data

Rated capacity 1.500 mc/h
Engine power 1,5kW 220/1/50
Total weight 110 kg ca
Filtration:
Stage 1 – sparkproof metallic filter G3
Stage 2 – acrylic filter G4 (following EN 779:2012)
Stage 3 – absolute filter H13 ≥99.95% (@ MPPS following EN 1822:2009)
Stage 4 – active carbons filter for odours

Structure

Supporting structure of strong galvanised or powder-coated iron, with practical handles and 4 pivoting wheels with brake.
Electrical panel in accordance with CE rules, with on/off switch for ventilation and warning led for filter clogging.
Centrifugal fan with simple inlet, directly paired to asynchronous single-phase motor.

Size

SPECIAL WEB PROMOTION: read more about it!

L'articolo Mobile welding fumes extractor sembra essere il primo su Gamma impianti.

During metal welding operations fumes, dust and gases are produced, which contains dozens of harmful chemicals. Those remain in the environment as micro-powders, metal particles or metal derivatives (as oxides) and filler metals (as electrodes, rod electrodes, lead, welding powder, etc.), or they are removed later by coatings as varnish, upholstery and detergent.
This is the reason why it is so important to use a mobile welding fumes extractor, designed to aspire and filter fumes and microdust from metal welding works before to be inhaled by operators.

Our efficient and low-budget solution

Welding fumes extractor MFU can be easily moved where it’s needed thanks to compact size, wheels and convenient handlings. Once there, it aspires fumes through its self-supporting suction arm ending in a hood with handling, to extract emissions straight from the source.

ADVANTAGES

• Quick: fumes suction straight from the source thanks to a high flow rate.
• Mobile: it can reach any welding working spots.
• Filtration: with absolute filter H13 ≥99.95%.
• In compliance with CE norms.

How the mobile purifier works MFU aspires pollutants from a flexible pipe or a suction arm. Then, pollutants are filtered to 99,95% of efficiency while crossing the purifier towards the bottom. Finally, any odour is absorbed by active carbons. Once air is clean, it is returned back into the environment via grids located on both sides of the machine. Environment safety Level of clogging is constantly monitored by a system with a led signal, which advise when it is necessary to clean or substitute filters. Easy to use Its light 3 mt. suction arm with hood, handling and flexible pipes can be moved effortless.

Technical data

Rated capacity 1.500 mc/h
Engine power 1,5kW 220/1/50
Total weight 110 kg ca
Filtration:
Stage 1 – sparkproof metallic filter G3
Stage 2 – acrylic filter G4 (following EN 779:2012)
Stage 3 – absolute filter H13 ≥99.95% (@ MPPS following EN 1822:2009)
Stage 4 – active carbons filter for odours

Structure

Supporting structure of strong galvanised or powder-coated iron, with practical handles and 4 pivoting wheels with brake.
Electrical panel in accordance with CE norms, with on/off switch for ventilation and warning led for filter clogging.
Centrifugal fan with simple inlet, directly paired to asynchronous single-phase engine.

Size

L'articolo Welding fumes extractor sembra essere il primo su Gamma impianti.

Functioning

Airtracker can continuously monitor air quality preventing chemical risks. Besides noise, temperature and humidity control, Airtracker keeps under control the most important parameter for operators’ health: instantaneous concentration value.
The device communicates via wi-fi with the safety manager, allowing remote monitoring and connection to the extraction and ventilation systems.

Airtracker can be wall- or ceiling-mounted. Once maximum level of pollution is reached (settable between 0 mg/m3 and 15 mg/m3), the device starts forced ventilation so to eject fumes and dust. Fans will be shutted once pollution level will be back within the threshold.

Alert system

• Traffic-light LED indicates fine powder concentration in the air.
• Mobile devices can be connected to Airtracker via LAN or wi-fi. Thanks to Airtracker app is possible to keep always under control temperature, humidity, fine dust concentration and noise emission.
• Two inlets to connect external devices (Fire Detection e Process Control).
• Three potential-free make contacts employeable for fans and the like.

Technical data

Measured valued

Regulations

Legislative Decree 2008, April 9th (a.IV p.2.1.9.1)
In workplace dangerous and harmful concentrations, explosive, asphyxiating or toxic steams or dust must be prevented. When necessary, an adequate ventilation must be implemented.

Links

Wikipedia : https://it.wikipedia.org/wiki/Ventilazione_controllata

L'articolo VLEP air monitoring system sembra essere il primo su Gamma impianti.