Samsung refrigerator service Centre in Kolkata

Have you heard that the standard 6-bedroom house collects roughly about 40 pounds of allergens and dust in its air duct per year?No matter how deep and good your cleaning is there is always dirt and dust inside your air duct system which, unfortunately, can’t be removed with the use of standard household equipment.

Here Air Duct Cleaning Services come to help you.

It is a long-established practice that will not only improve the quality of the air inside your place but will also remove unpleasant smells and guarantee the proper functioning of heating and ventilation system during cold periods.

Moreover, here another benefit of air duct cleaning service comes into play: the cleaner the system is the less energy it consumes.

As a result, by improving the efficiency of your HVAC systems, you save your money!

Sem’s Duct Cleaning encourages you to proceed with your duct cleaning service in order to remove all dirt, dust, and allergens that have been hidden deep inside your HVAC system over the years and to, finally, enjoy a clean and fresh indoor environment.

Ac is a best home appliances to take fresh cooling to us.

We all are like to sleep under the ac.

Has a window which we fit outside the wall.

Its help us to remove the inside air and supply the cool air inside.

In our service center all types of ac are repair.

In our service center 24 hours in online to provide to service for you.

Frequently used on an assembly line, the pneumatically-driven screwdriver allows a staff member to put lots of screws without generating forearm or hand fatigue.

Offered in level head & various other variations, a pneumatically-driven screwdriver can be predetermined to a specific torque preparing to avoid removal of screw heads or strings as a result of over-tightening.

Normal upkeep includes a light application of oil airborne line connection to lube the electric motor as the jet stream by means of.

Making use of a hand-held as well as powered screwdriver would certainly not only trigger giving up the assembly line to catch up as the employee fell back, it would definitely cause severe injury to the employees' hands, wrists as well as lower arms.

A Pneumatic Screw Driver is better, nevertheless, the batteries frequently stop working throughout usage and also require payment time or time to change the battery pack.

The remedy in many setting up plants is the pneumatically-driven screwdriver.

However, this type of motor is not suitable for operation in high temperature, flammable and other environments, and because the motor needs to use carbon brushes as a current transformer means (Commutator) a (brush motor), it is necessary to periodically clean the brushes friction generated contaminants.

A brushless motor is called a brushless motor.

AC motors can be operated in high temperature, flammable and other environments, and do not need to clean the carbon brush dirt regularly, but it is more difficult to control the speed, because controlling the speed of the AC motor needs to control the frequency of the AC (or use induction The motor uses the method of increasing the internal resistance to reduce the motor speed at the same AC frequency ), and controlling its voltage will only affect the torque of the motor.

In industrial applications, there are also 380V or 440V.Working PrincipleThe principle of rotation of the motor is based on John Ambrose Fleming's left-hand rule .

When a wire is placed in a magnetic field, if the wire is energized, the wire will cut the magnetic field line and move the wire.

The principle of a DC motor that interacts with a permanent magnet or a magnetic field generated by another set of coils to generate power is that the stator does not move, and the rotor moves in the direction of the force generated by the interaction.