are purchasing these types of machines so they can sew extra large thread sizes up to Tex 500 or Tex 600 thread sizes. Another option for sewing heavy threads on 301 lockstitch machines is to sew the heavy thread in the bobbin and using a regular size thread in the needle. This means that the seam is inverted when it is sewn.
The DM5E Series Ultrasonic Wall Thickness Gage enables you to accomplish a large number of demanding tasks, especially with remaining wall thickness measurements on components subjected to corrosion and erosion.
Ultrasonic Leak Detectors are so sensitive to sound that it will let you hear the blink of the human eye, but again it is not gas specific. For example, a leak test can be done in an enclosed area which is saturated with refrigerant, and the only indication an ultrasonic will give you is the sound of the leak.