Shine up your jewelry pieces quickly and easily using a magnetic finisher. Did you know a magnetic finisher takes half the time of a traditional rotary tumbler with stainless steel shot? Magnetic finishers are extremely fast and efficient. Like stainless steel shot, the stainless steel pins, along with burnishing compound, burnish your jewelry pieces using a centrifugal action. Burnishing is similar to polishing where a hard, polished metal rubs against another, softer metal such as PMC® pieces, tarnished silver and base metals, or other pieces that need brightening. The rubbing action puts a shine on the softer metal, leaving your silver, bronze, copper, etc., bright and shiny. Burnishing produces a very bright finish, though not as bright a finish as polishing will produce.
So how does a magnetic finisher work? In the base of the finisher, a motor spins a set of positive and negatively charged magnets. The magnetic field pulls the pins around the circumference of the bowl sitting on the base, causing the pins to collide with the objects inside, burnishing them to a shiny finish. Picture a piece of paper with metal shavings on top, when you place a magnetic underneath you can move the metal shavings. This is what is occurring in the magnetic finisher’s bowl at a very fast rate. Since magnets cause the metal pins to spin, no non-metallic materials can be used in the bowl to get the same effect since they are not affected by the magnets and will not spin.
There are several sizes of finishers to choose from based on your production needs. We have small capacity finishers such as our Raytech CMF 400 and larger-capacity magnetic finishers such as our new Dura-Bull 11″ Magnetic Tumbler.
Magnetic finishers offer a great way to remove tarnish and other soils, contaminants, and debris that may be caught in recesses, details, undercuts and other hard-to-reach areas of your work. They are also a simple way to create a shiny finish.
And this is the money shot: imagine giving your jewelry pieces such a beautiful, bright shine in so little time and without getting sore fingers and thumbs from rubbing them by hand! Give magnetic finishers a try and let us know what you think. I look forward to hearing about your experience.