FAQ - Frequently asked questions

Filters

Q: How do I handle consumed filters?

A: That depends on what the filters have been used for and on local regulations for your community or country.

If the filter is classified as hazardous waste, local regulations for your fegulate disposal. If the goods are classified as waste, they may be burnd.

In Lidköping, Sweden, consumed filters, used within the electronics industry, are looked upon as combustible waste, if they do not contain heavy metals. Consumed filters belongs to code 15 02 00 according to the Environmental Code.

 

Q: How long does a filter last?

A: The life of a Filtronic MG filter depends on what it is meant to be used for. By a normal consumption, soldering on printed circuit boards, hole and surface mounted components under production conditions, the life is 4-8 months, depending on the quantity of soldering and also which kind and volume of flux is used. Of course, it is also of big importance how many soldering connections that are made each day. If you, for example, use 1 % flux the standard filter will take care of up to 10 kg solder wire.

 

Q: Why are FT's high airflow filters often bigger than the filter of the competitors?

A: Our units consist for the most of a gas filter. To achieve a satisfactory function for a gas filter it is absolutely necessary that the gas molecules stay in the gas filter during a certain period. If this does not happen the degree of separation decreases dramatically. This means that the volume/size of the filter decides how much air can pass the filter per hour. The filters in all our units are designed to handle the air quantity going to filter. If the size of the filter is made smaller the gas filter will not work the way it is meant to do.

 

Q: For which type of working spots can the FT filter systems be used?

A: Our filter systems are developed to handle pollutions of gases and smoke. They are designed to solve the problem of air pollution for every single operator in the electronics industry. However, it might very well be used at working spots where soldering, glueing, melting (heating of plastic material), printing processes and different kinds of washing and cleaning processes are performed. The filter systems should not be used at processes with a lot of dust or high concentrations of gases.

 

Q: How can you tell if the filter system filtrates exactly the gases you want to eliminate?

A: FT's filter system is equipped with a broad spectra gas filter as standard, which theoretically can eliminate gas corresponding to 25 % of the weight of the filter substance. The gases you can eliminate are gases with a molecule weight >40 g/Mol and a boiling point > +/- 0 °C.

 
Systems

Q: What is the recommended length of the hoses connected to the high vacuum filter system and what is the maximum length?

A: Always the same length and size to all the irons connected to the same filter system. Recommendation max 2,5 meters.

 

Q: How long can the tube system be in a FC central system?

A: Our recommendation is 2” tube FC15 = max 50 meters, FC50 = max 200 meters. It is of great importance that the tube system is 100 % vacuum-tight. The design of the tube system can effect on the filter lifetime in the FC filter systems.

 

Q: What are common applications for CBC-A within the electronic industry?

A: BGA rework stations, big PCB’s, cleaning coating and molding operations.

 

Q: What happens with the air curtain when you are working with hands/arms in the CBC-A?

A: The CBC-A cabinet is tested, and the result shows a maximum leakage <5 %, which is similar to a fume cabinet.

 

Q: Are the FT products ESD-safe?

A: The most products are tested and approved by SP. You can also see the web site of SP, The Test and Research Institute of Sweden, at www.sp.se .

 

Q: How high is the noise level of the FT-units?

A: We manufacture the most silent units on the market. The noise level is between 39-52 decibel in the operator zone depending on the unit and the utilization of the capacity.

 

Q: How do I choose the right type of nozzle to an extraction arm?

A: The goal is to create a suction power that exceeds gas diffusion and thermo dynamic air movements to avoid the process air moving in the premises. A rule of thumb is to have > 0,5 m/sec towards the nozzle where the pollutions arise. In practice it is ergonomics and size of the printed circuit cards that decide the choice of nozzle.

  
Use

Q: How often do you have to clean clip-on nozzles and hoses connected to the filter system?

A: From twice a day to once a week, depending on type of work. The nozzle will start to make whistling noise and the capacity will decrease when the system clog’s up.

 

Q: How shall the nozzle be placed to achieve best function?

A: Towards the bench top and as close as possible to the polluting object.

 

Q: What is the optimal capacity in an extraction arm for use at a bench top?

A: The capacity should be 50-70 m3/h. If too high the noise from the suction nozzle can be unpleasantly. When using the suction nozzle in the right way the air flow 50-70 m3/h is big enough to be able to catch the gases and particles that arise at working spots at for e.g. soldering, glueing and washing processes.

 

Q: For which type of working spots can the FT filter systems be used?

A: The FT filter systems are developed to handle pollutions of gases and smoke. They are designed to solve the problem of air pollutions for every single operator within the electronics industry. However, it might very well be used at working spots where soldering, glueing, melting (heating of plastic material), printing processes and different kinds of washing and cleaning processes are performed. The filter systems should not be used at processes with a lot of dust or high concentrations of gases.

 

Q: Which length of the hose is recommended between the filter unit and the extraction arm?

A: We recommend maximum 2 meters. This is based upon the fact that service and handling cause limits. Theoretically you can use 10 m hose but the suction capacity turns lower.

 

Q: How high is the noise level of the FT-units?

A: We manufacture the most silent units on the market. The noise level is between 39-52 decibel in the operator zone depending on the unit and the utilization of the capacity.

 

Q: How do I choose the right type of nozzle to an extraction arm?

A: The goal is to create a suction power that exceeds gas diffusion and thermo dynamic air movements to avoid the process air moving in the premises. A rule of thumb is to have > 0,5 m/sec towards the nozzle where the pollutions arise. In practice it is ergonomics and size of the printed circuit cards which decide the choice of nozzle.

  


HR
Electronic line
Laboratory line
Beauty line
Laser line
HR