{"id":4403,"date":"2018-11-11T10:56:34","date_gmt":"2018-11-11T09:56:34","guid":{"rendered":"http:\/\/www.spd.it\/machine-tools-clamping\/grinding\/polarita\/"},"modified":"2023-06-06T11:01:45","modified_gmt":"2023-06-06T09:01:45","slug":"polarity","status":"publish","type":"page","link":"https:\/\/www.spd.it\/en\/products\/workholding\/grinding\/polarity\/","title":{"rendered":"Polarity"},"content":{"rendered":"
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\r\n IMPORTANCE OF THE POLE PITCH<\/h2>\r\n\r\n
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The real reason for choosing a magnetic chuck over another lies<\/p>\n

in the ideal pole pitch<\/em><\/strong> for the work-piece to be magnetised.<\/p>\n<\/div>\n<\/div> <\/div>\n <\/div>\n<\/section>\n

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\r\n LINEAR POLE<\/h3>\r\n\r\n
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Thanks to the linear pole it is much easier to adapt the magnetic flux of the chuck to thin-walled work-pieces.<\/p>\n<\/div>\n<\/div> <\/div>\n <\/div>\n<\/section>\n

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POLE AND COUNTER-POLE TECHNOLOGY<\/strong><\/p>\n

This technology is based on an active pole<\/strong><\/em> underneath of which an alnico magnet with coil, spool and an iron counter-pole (or induced pole) is placed, forming part of the chuck frame. The main advantage is the possibility of having narrow pole pitches and rigid structures that can easily be fastened to the machine bed.<\/p>\n<\/div>\n<\/div><\/div><\/div>

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PARALLEL POLES ARRANGEMENT<\/strong><\/p>\n

The longitudinal poles are laid out parallelly, alternating between north and south polarities. The magnets arranged this way generate the clamping force when activated. Activation occurs by using an electronic control device, and its duration is less than one second. The magnetic module will then remain active for as long as necessary, without additional use of energy<\/strong><\/em>.<\/p>\n<\/div>\n<\/div>

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TYPE \u201cA\u201d POLE<\/h4>Suitable for common grinding operations, optimal for thicknesses
\nover 10 mm.<\/div><\/div><\/div><\/div>

TYPE \u201cD\u201d POLE.<\/h4>Suitable for precision work machining on thicknesses
\nover 7 mm.<\/div><\/div><\/div><\/div>

THICK POLE<\/h4>Suitable for high precision machining, even on thin pieces of at least 5 mm thick.<\/div><\/div><\/div><\/div> <\/div>\n <\/div>\n<\/section>\n
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\r\n Let’s make the magnetic solution you need. <\/h3>\r\n\r\n

\r\n Maximum customisation is SPD\u2019s real plus.<\/h3>\r\n\r\n[vc_btn title=”CONTACT US” style=”flat” shape=”square” align=”center” css=”.vc_custom_1548249437576{padding-bottom: 90px !important;}” link=”url:http%3A%2F%2Fwww.spd.it%2Fen%2Fcompany-contacts%2F|||”]<\/div> <\/div>\n <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"IMPORTANCE OF THE POLE PITCH The real reason for choosing a magnetic chuck over another lies in the ideal pole pitch for the work-piece to be magnetised. LINEAR POLE Thanks to the linear pole it is much easier to adapt the magnetic flux of the chuck to thin-walled work-pieces. POLE AND COUNTER-POLE TECHNOLOGY This technology","protected":false},"author":2,"featured_media":7241,"parent":4392,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4403","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nPolarity - SPD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.spd.it\/en\/products\/workholding\/grinding\/polarity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polarity - SPD\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.spd.it\/en\/products\/workholding\/grinding\/polarity\/\" \/>\n<meta property=\"og:site_name\" content=\"SPD\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-06T09:01:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.spd.it\/wp-content\/uploads\/RETTIFICA-1-e1686551799617.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1584\" \/>\n\t<meta property=\"og:image:height\" content=\"396\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.spd.it\/en\/products\/workholding\/grinding\/polarity\/\",\"url\":\"https:\/\/www.spd.it\/en\/products\/workholding\/grinding\/polarity\/\",\"name\":\"Polarity - 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