{"product_id":"welker-coils","title":"Welker Coils","description":"Welker Coils - state of the art coil development from Eternal Tattoo Supplies engineering department. \u003cbr\u003eThese coils start with a custom designed bobbin.\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eThe bobbins nylon construction provides a dielectric and a thermo barrier to defer generated heat from transferring to the core and subsequently to the machine frame.\u003c\/li\u003e\n\u003cli\u003eThey incorporate gentle ramps at the start of the winding of the magnetic wire to prevent any type of kink that would raise the resistance and hinder the flow of current though the winding.\u003c\/li\u003e\n\u003cli\u003eThe walls of the bobbin have been reinforced with gussets to prevent wall bending during the winding process allowing for a perfect wire stack-up.\u003c\/li\u003e\n\u003cli\u003eFurther enhancing the winding process, ribs are added to the bobbin cylinder to locate the first wrap of wire with a ramp up at the opposite end of the winding start to aid in placing the wire in the proper position for the next wrap of wire.\u003c\/li\u003e\n\u003cli\u003eTo aid in making strong sealed coil, interlocking tabs are added to the bobbin walls that mold into the outer case protecting the coil wraps.\u003c\/li\u003e\n\u003cli\u003eAfter the winding is complete the fragile magnetic wire is terminated and soldered to a flexible stranded wire to make connections to the binding posts. The connection takes place inside the outer case further protecting the coil from damage or contamination.\u003c\/li\u003e\n\u003c\/ul\u003e\nAfter the winding and wire connections are made the entire assembly is covered in a custom made encapsulation with the following features:\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eThe encapsulation made of a strong thermoplastic protects the fragile coil wraps from contaminates and physical damage.\u003c\/li\u003e\n\u003cli\u003eThe encapsulation material is a specially formulated thermoplastic that, unlike a shrink wrap or other type of coil wire covering, is designed to act like a radiator, allowing heat to escape outward at a high rate redirecting it away from the core and subsequently to the machine frame.\u003c\/li\u003e\n\u003cli\u003eThe soldered connections of the magnetic wire to the flexible stranded wire is contained inside the over molded encapsulation.\u003c\/li\u003e\n\u003cli\u003eThe coils come embossed with the “Welker” brand name and are proudly made to high quality standards 100% in the USA.\u003c\/li\u003e\n\u003c\/ul\u003e\nThe coil cores are designed with the following features:\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eAfter extensive testing a 12L14 material was chosen for its higher magnetic flux generation and faster reaction to a magnetic field applied and removed.\u003c\/li\u003e\n\u003cli\u003eThe cores receive a full heat treatment in a high vacuum furnace reaching 1650 degrees and a controlled cooling process to attain the optimal soft magnetic qualities.\u003c\/li\u003e\n\u003cli\u003eThe cores are finally given a black oxide finish for visual purposes and corrosion protection.\u003c\/li\u003e\n\u003c\/ul\u003e\nAll coils come complete with the following hardware:\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003e8 wraps are available in 1 inch and 1 ¼ inch with 22uf 40V aluminum electrolytic mini can capacitors.\u003c\/li\u003e\n\u003cli\u003e10 wraps are available in 1 inch and 1 ¼ inch with 47uf 40V aluminum electrolytic mini can capacitors.\u003c\/li\u003e\n\u003cli\u003eAll coils are only available in black.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"welker","offers":[{"title":"1\" 8 Wrap","offer_id":40255163367605,"sku":"WK-COIL-1.8","price":55.0,"currency_code":"AUD","in_stock":true},{"title":"1\" 10 Wrap","offer_id":40255163400373,"sku":"WK-COIL-1.10","price":55.0,"currency_code":"AUD","in_stock":false},{"title":"1.25\" 8 Wrap","offer_id":40255163433141,"sku":"WK-COIL-1.25.8","price":55.0,"currency_code":"AUD","in_stock":true},{"title":"1.25\" 10 Wrap","offer_id":40255163465909,"sku":"WK-COIL-1.25.10","price":55.0,"currency_code":"AUD","in_stock":false}],"url":"https:\/\/www.bstattoo.com.au\/products\/welker-coils","provider":"Brett Stewart Tattoo Supplies","version":"1.0","type":"link"}