The helmet is an essential safety gadget which should be worn by welders. There are various welding helmet options based on the type of lens (passive or auto-darkening lens), its shade (fixed or variable), the number of sensors, viewing size, etc. solar powered welding helmets are economical and lightweight members belonging to the helmet family. Spending some time to find the right helmet which suits your needs can increase the quality of welding and your productivity. Moreover, it lets you work comfortably.
The first and foremost thing to look for in any helmet is that it should meet ANSI Z87.1 – 2003 standards. Have a look at www.augustatools.co.za/ to see how the specifications of welding safety products generally look like. The ANSI standard ensures that your helmet is efficient enough to keep you safe. Let us get into the details of various types of helmets!
Difference between passive and auto darkening lens
A passive lens helmet usually comes with a fixed shade value of #10. It uses dark-tinted glass which is UV and IR coated. A welder who uses passive helmet wears it in the up position while positioning the electrode, gun or the torch. Then immediately before striking an arc, he has to flip the helmet into position with a quick snap of his neck.
The shortcomings of passive lens helmets are:
· A beginner in welding would find it difficult to position the electrode and snapping the helmet into place at the same time which will cause poor weld starts which, in turn, lead to more defects.
· As the welder has to lift and lower the helmet repeatedly, tack welding would be difficult and inefficient.
· Flipping the helmet repeatedly causes neck fatigue
· Improper timing may cause risks as there are chances for the arc to strike before the helmet is in place.
Auto-darkening lens addresses these issues efficiently. It has an inactive state when the shade number is usually #3 or #4 during which it is relatively easy to see through. There are sensors on the helmet to sense an arc start, and when they sense one, the lens shifts to a shade of #8 to #13. As the helmet stays in position throughout the procedure of welding, it enables easy setup of your welding joint. Difficult head flips are not required to lower the helmet and no more delayed starts! This improves the weld quality and eases the neck strain associated with the passive type of helmet.
Other points to consider
A lightweight helmet is comfortable to use as it does not cause much strain on the welder’s neck. Finally, there are some new features in the auto-darkening helmet which provide benefits, especially for industrial welders. So don’t forget to have a look into them before making a choice.
If your career involves welding, use this information to find the right helmet for you. It would always be tempting to buy the least expensive option, but do not fall for it! Spending enough time to explore all the options and then choosing the best one is sure to bring you long-term benefits.