{"id":2462,"date":"2026-07-24T14:01:51","date_gmt":"2026-07-24T06:01:51","guid":{"rendered":"https:\/\/cixuan1.semitanker.com\/?page_id=2462"},"modified":"2026-07-24T16:04:46","modified_gmt":"2026-07-24T08:04:46","slug":"17-x-52-mm-ptfe-magnetic-bar","status":"publish","type":"page","link":"https:\/\/cixuan1.semitanker.com\/pt\/17-x-52-mm-ptfe-magnetic-bar\/","title":{"rendered":"17 \u00d7 52 mm PTFE Magnetic Bar"},"content":{"rendered":"\n<style>\n.osenc-pdp { --osenc-navy:#0b2542;--osenc-blue:#123b63;--osenc-cyan:#1a8a9e;--osenc-text:#1e2936;--osenc-muted:#5e6b78;--osenc-soft:#eef4f7;--osenc-line:#d7e1e8;--osenc-white:#fff;--osenc-radius:14px;--osenc-shadow:0 10px 28px rgba(11,37,66,.08);color:var(--osenc-text);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.72;overflow:hidden}\n.osenc-pdp * {box-sizing:border-box}\n.osenc-pdp .osenc-wrap {max-width:1280px;margin:0 auto;padding:0 28px}\n.osenc-pdp .osenc-section {padding:78px 0}\n.osenc-pdp .osenc-soft 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22px}}\n@media(prefers-reduced-motion:reduce) {.osenc-pdp .osenc-btn {transition:none}}\n<\/style>\n<section class=\"osenc-pdp\">\n  <div class=\"osenc-hero\">\n    <div class=\"osenc-wrap osenc-grid-2\">\n      <div>\n        <span class=\"osenc-kicker\">Battery Material Magnetic Impurity Testing<\/span>\n        <h1>17 \u00d7 52 mm PTFE Magnetic Bar<\/h1>\n        <p class=\"osenc-lead\">OSENC supplies a compact PTFE-encapsulated magnetic rod for collecting ferromagnetic particles from battery powders, NMP-based slurries and laboratory sample-preparation workflows. We review the finished-surface field target, coating integrity, pole arrangement, chemistry, temperature and test method before production.<\/p>\n        <div class=\"osenc-actions\">\n          <a class=\"osenc-btn osenc-btn-primary\" href=\"https:\/\/cixuan1.semitanker.com\/contact-us\/\">Request an Engineering Review<\/a>\n          <a class=\"osenc-btn osenc-btn-secondary\" href=\"https:\/\/cixuan1.semitanker.com\/contact-us\/\">Send Your Sample Method<\/a>\n        <\/div>\n        <div class=\"osenc-proof\">\n          <div class=\"osenc-proof-card\"><strong>\u00d817 \u00d7 52 mm<\/strong><span>Compact target size<\/span><\/div>\n          <div class=\"osenc-proof-card\"><strong>PTFE Contact Surface<\/strong><span>For controlled sample contact<\/span><\/div>\n          <div class=\"osenc-proof-card\"><strong>Finished-Surface Field<\/strong><span>Measured at agreed points<\/span><\/div>\n        <\/div>\n      <\/div>\n      <div class=\"osenc-media\">\n        <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/17x52mm-ptfe-magnetic-bar-hero.webp\" width=\"1200\" height=\"900\" alt=\"17 \u00d7 52 mm PTFE magnetic bar on a laboratory workbench\" loading=\"eager\" fetchpriority=\"high\">\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <h2>Is This Magnetic Bar a Good Fit?<\/h2>\n      <div class=\"osenc-decision-grid\">\n        <div class=\"osenc-card\"><h3>Best Fit<\/h3><p>Laboratory and small-batch magnetic impurity collection where the sample should contact PTFE rather than an exposed metal shell.<\/p><\/div>\n        <div class=\"osenc-card\"><h3>Validate First<\/h3><p>Fine-particle collection in battery powders or slurries, because viscosity, particle composition, mixing and contact time change the result.<\/p><\/div>\n        <div class=\"osenc-card\"><h3>Choose Another System<\/h3><p>Industrial throughput, continuous slurry purification or a guaranteed recovery target. Those jobs need a larger separator and process data.<\/p><\/div>\n      <\/div>\n      <div class=\"osenc-callout\"><strong>Important:<\/strong> surface gauss is one measurement of the finished component. It is not a universal guarantee of particle size, capture efficiency or analytical repeatability.<\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section osenc-soft\">\n    <div class=\"osenc-wrap osenc-grid-2\">\n      <div>\n        <h2>Why Specify a PTFE Contact Surface?<\/h2>\n        <p>PTFE helps isolate the magnetic circuit from the sample and provides a smooth, low-adhesion contact surface for controlled cleaning. The practical reason to specify PTFE is test-system control, not a blanket claim that NMP automatically destroys every 316 stainless-steel component.<\/p>\n        <p>Chemical suitability still depends on the exact solvent or acid, concentration, temperature, exposure time, coating continuity and mechanical handling. A chip, cut or thin spot can defeat an otherwise suitable material choice.<\/p>\n      <\/div>\n      <div class=\"osenc-media\">\n        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/ptfe-magnetic-bar-selection-factors.webp\" width=\"1200\" height=\"900\" alt=\"PTFE magnetic bar with laboratory glassware and magnetic field inspection equipment\" loading=\"lazy\">\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <h2>Controlled Product Specification<\/h2>\n      <div class=\"osenc-table-wrap\"><table>\n        <thead><tr><th>Parameter<\/th><th>OSENC Page Definition<\/th><th>What Must Be Confirmed<\/th><\/tr><\/thead>\n        <tbody>\n          <tr><td>Overall size<\/td><td>17 mm diameter \u00d7 52 mm length<\/td><td>Tolerance and coating build on the approved drawing<\/td><\/tr>\n          <tr><td>Product type<\/td><td>PTFE-encapsulated magnetic impurity collection rod<\/td><td>End form, sealing construction and required surface finish<\/td><\/tr>\n          <tr><td>Magnetic circuit<\/td><td>NdFeB-based assembly<\/td><td>Grade, coercivity, geometry and pole arrangement<\/td><\/tr>\n          <tr><td>Surface field<\/td><td>6,000\u20137,000 G target range when specified<\/td><td>Finished PTFE surface, defined points, room temperature, probe orientation and tolerance<\/td><\/tr>\n          <tr><td>Pole arrangement<\/td><td>Drawing-controlled<\/td><td>Axial or custom layout and pole map<\/td><\/tr>\n          <tr><td>Chemical exposure<\/td><td>Reviewed for battery-material laboratory use<\/td><td>Chemical, concentration, temperature, duration and cleaning cycle<\/td><\/tr>\n          <tr><td>Operating temperature<\/td><td>Application-specific<\/td><td>Use the lowest limit of the magnet, internal assembly and PTFE construction<\/td><\/tr>\n          <tr><td>Evidence options<\/td><td>Project-specific inspection package<\/td><td>Dimensional report, gauss map, coating inspection or agreed immersion test<\/td><\/tr>\n        <\/tbody>\n      <\/table><\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section osenc-soft\">\n    <div class=\"osenc-wrap osenc-grid-2\">\n      <div class=\"osenc-media\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/17x52mm-ptfe-magnetic-bar-dimensions.webp\" width=\"1200\" height=\"900\" alt=\"Digital caliper check of the 52 mm length and 17 mm diameter PTFE magnetic bar\" loading=\"lazy\"><\/div>\n      <div>\n        <h2>What Actually Controls Performance?<\/h2>\n        <ul class=\"osenc-list\">\n          <li><strong>Magnetic circuit:<\/strong> internal geometry and pole spacing can matter more than the grade label.<\/li>\n          <li><strong>PTFE build:<\/strong> PTFE is not a magnetic shield, but every added millimetre increases the working gap.<\/li>\n          <li><strong>Temperature:<\/strong> the assembled rod limit can be far below the material limit of PTFE.<\/li>\n          <li><strong>Sample matrix:<\/strong> viscosity, agglomeration, particle composition and mixing change collection behaviour.<\/li>\n          <li><strong>Measurement method:<\/strong> peak gauss, average gauss and field gradient are not interchangeable.<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <h2>Battery-Material Test Workflow<\/h2>\n      <p>A typical project may involve preparing a defined powder or slurry sample, exposing it to the finished PTFE magnetic surface under controlled mixing, rinsing or digesting the collected material, and analyzing it by the laboratory\u2019s validated method. OSENC supplies the magnetic component; the buyer owns the analytical protocol, acceptance limit and method validation.<\/p>\n      <div class=\"osenc-media\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/ptfe-magnetic-bar-battery-test-workflow.webp\" width=\"1200\" height=\"900\" alt=\"PTFE magnetic bar collecting magnetic particles from a battery material slurry sample\" loading=\"lazy\"><\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section osenc-soft\">\n    <div class=\"osenc-wrap\">\n      <h2>Compare the Contact-Surface Options<\/h2>\n      <div class=\"osenc-table-wrap\"><table>\n        <thead><tr><th>Option<\/th><th>Useful When<\/th><th>Main Limitation<\/th><\/tr><\/thead>\n        <tbody>\n          <tr><td>PTFE-encapsulated magnetic bar<\/td><td>A non-metallic sample-contact surface and chemical isolation are important<\/td><td>Coating continuity, thickness and mechanical damage must be controlled<\/td><\/tr>\n          <tr><td>Stainless-housed magnetic rod<\/td><td>Mechanical durability, welding and process integration are priorities<\/td><td>Metal contact may be undesirable in trace-contamination methods; compatibility depends on the exact chemistry<\/td><\/tr>\n          <tr><td>Bare NdFeB magnet<\/td><td>Dry, protected fixtures with no direct chemical contact<\/td><td>Brittle and corrosion-sensitive; generally unsuitable for direct slurry or acid contact<\/td><\/tr>\n        <\/tbody>\n      <\/table><\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <h2>OSENC Validation Route<\/h2>\n      <div class=\"osenc-steps\">\n        <div class=\"osenc-step\"><h3>Define the Matrix<\/h3><p>Send powder or slurry composition, liquid chemistry and temperature.<\/p><\/div>\n        <div class=\"osenc-step\"><h3>Lock the Drawing<\/h3><p>Confirm size, end geometry, PTFE construction and pole map.<\/p><\/div>\n        <div class=\"osenc-step\"><h3>Make a Sample<\/h3><p>Use a prototype or pilot lot before volume release.<\/p><\/div>\n        <div class=\"osenc-step\"><h3>Verify the Bar<\/h3><p>Inspect dimensions, surface condition and finished-surface gauss.<\/p><\/div>\n        <div class=\"osenc-step\"><h3>Validate the Method<\/h3><p>Run the buyer\u2019s actual sample matrix and analytical procedure.<\/p><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section osenc-soft\">\n    <div class=\"osenc-wrap osenc-split\">\n      <div class=\"osenc-good\"><h2>Suitable Applications<\/h2><ul class=\"osenc-list\"><li>Battery cathode or anode powder impurity extraction<\/li><li>Small-volume slurry screening and sample preparation<\/li><li>Pre-analysis magnetic-particle collection before ICP workflows<\/li><li>R&#038;D and QC methods requiring a PTFE contact surface<\/li><\/ul><\/div>\n      <div class=\"osenc-bad\"><h2>Not Suitable Without Further Engineering<\/h2><ul class=\"osenc-list\"><li>Industrial bulk or continuous separation<\/li><li>Guaranteed sub-micron capture based only on gauss<\/li><li>Continuous use at the PTFE resin temperature limit<\/li><li>Aggressive impact, abrasion or prolonged ultrasound<\/li><li>Food, pharmaceutical, medical or sterile use without scoped evidence<\/li><\/ul><\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <h2>Frequently Asked Questions<\/h2>\n      <div class=\"osenc-faq\">\n        <details><summary>Is the 6,000\u20137,000 G value measured through the PTFE?<\/summary><div class=\"osenc-answer\">When this target is specified, the useful value should be measured on the finished PTFE surface, not on an uncoated magnet or internal component. The drawing should define the measurement points, temperature, probe orientation and tolerance.<\/div><\/details>\n        <details><summary>Does PTFE block the magnetic field?<\/summary><div class=\"osenc-answer\">PTFE is not a magnetic shield, but its thickness adds distance between the magnetic circuit and the particle. That spacing can reduce the field and gradient at the working surface, so coating construction and field target must be designed together.<\/div><\/details>\n        <details><summary>Can this rod capture 1 \u03bcm iron particles?<\/summary><div class=\"osenc-answer\">It may collect fine ferromagnetic particles in a suitable test matrix, but OSENC does not publish a universal 1 \u03bcm capture-efficiency guarantee. Validate the actual powder or slurry, viscosity, mixing method, contact time and analytical procedure.<\/div><\/details>\n        <details><summary>Is N56 required?<\/summary><div class=\"osenc-answer\">No. Grade is only one input. A lower grade with a better circuit, appropriate coercivity and controlled PTFE barrier can outperform a poorly designed N56 assembly. Temperature stability must also be reviewed.<\/div><\/details>\n        <details><summary>Can it be used in NMP, acids or alkaline solutions?<\/summary><div class=\"osenc-answer\">PTFE is selected for broad chemical resistance, but the finished component must still be reviewed for the exact chemical, concentration, temperature, duration, cleaning method and risk of coating damage.<\/div><\/details>\n        <details><summary>Can the rod be autoclaved?<\/summary><div class=\"osenc-answer\">Do not assume the rod is autoclavable from PTFE data alone. The magnetic material, internal assembly method and thermal cycle must all be approved.<\/div><\/details>\n        <details><summary>What should I send for a quotation?<\/summary><div class=\"osenc-answer\">Send the sample material, liquid chemistry, temperature, sample mass or volume, target field, measurement method, cleaning procedure, quantity, destination and required inspection documents.<\/div><\/details>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"osenc-section\">\n    <div class=\"osenc-wrap\">\n      <div class=\"osenc-rfq\">\n        <h2>Send the Test Conditions, Not Just the Gauss Number<\/h2>\n        <p>For a useful quotation, include the sample material, solvent or acid, concentration, temperature, sample volume, target field, measurement points, cleaning method, quantity and required reports.<\/p>\n        <div class=\"osenc-actions\"><a class=\"osenc-btn osenc-btn-primary\" href=\"https:\/\/cixuan1.semitanker.com\/contact-us\/\">Request a 17 \u00d7 52 mm PTFE Bar Review<\/a><\/div>\n        <h3>Related OSENC Resources<\/h3>\n        <div class=\"osenc-links\"><a href=\"https:\/\/cixuan1.semitanker.com\/teflon-coated-magnets\/\">Teflon Coated Magnets<\/a><a href=\"https:\/\/cixuan1.semitanker.com\/neodymium-bar-magnets\/\">Neodymium Bar Magnets<\/a><a href=\"https:\/\/cixuan1.semitanker.com\/custom-neodymium-magnets\/\">Custom Neodymium Magnets<\/a><a href=\"https:\/\/cixuan1.semitanker.com\/quality-management\/\">Quality Management<\/a><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"17 \u00d7 52 mm PTFE Magnetic Bar\",\"url\":\"https:\/\/cixuan1.semitanker.com\/17x52mm-ptfe-magnetic-bar\/\",\"image\":[\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/17x52mm-ptfe-magnetic-bar-hero.webp\",\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/17x52mm-ptfe-magnetic-bar-dimensions.webp\",\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/ptfe-magnetic-bar-battery-test-workflow.webp\",\"https:\/\/cixuan1.semitanker.com\/wp-content\/uploads\/2026\/07\/ptfe-magnetic-bar-selection-factors.webp\"],\"description\":\"A compact PTFE-encapsulated magnetic impurity collection rod for battery powders, slurries and laboratory sample preparation, configured through application and test-method review.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"OSENC\"},\"manufacturer\":{\"@type\":\"Organization\",\"name\":\"OSENC\",\"url\":\"https:\/\/cixuan1.semitanker.com\/\"},\"category\":\"PTFE-encapsulated magnetic separation component\",\"material\":[\"PTFE\",\"NdFeB-based magnetic assembly\"],\"width\":{\"@type\":\"QuantitativeValue\",\"value\":17,\"unitCode\":\"MMT\"},\"height\":{\"@type\":\"QuantitativeValue\",\"value\":52,\"unitCode\":\"MMT\"}}<\/script>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is the 6,000\u20137,000 G value measured through the PTFE?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"When this target is specified, it should be measured on the finished PTFE surface at defined points, temperature and probe orientation.\"}},{\"@type\":\"Question\",\"name\":\"Does PTFE block the magnetic field?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"PTFE is not a magnetic shield, but its thickness increases the distance from the magnetic circuit and can reduce the field gradient at the working surface.\"}},{\"@type\":\"Question\",\"name\":\"Can this rod capture 1 \u03bcm iron particles?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Fine-particle collection may be possible in a suitable matrix, but OSENC does not publish a universal 1 \u03bcm capture-efficiency guarantee. The actual sample and method must be validated.\"}},{\"@type\":\"Question\",\"name\":\"Is N56 required?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Finished performance depends on the complete magnetic circuit, coercivity, geometry, PTFE build, temperature and measurement method, not the grade label alone.\"}},{\"@type\":\"Question\",\"name\":\"Can it be used in NMP, acids or alkaline solutions?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The finished component must be reviewed for the exact chemical, concentration, temperature, exposure duration, cleaning method and coating-damage risk.\"}},{\"@type\":\"Question\",\"name\":\"Can the rod be autoclaved?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Autoclave suitability cannot be inferred from PTFE alone. The magnet material, assembly method and thermal cycle must be approved.\"}},{\"@type\":\"Question\",\"name\":\"What should I send for a quotation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Send the sample material, liquid chemistry, temperature, sample mass or volume, target field, measurement method, cleaning procedure, quantity, destination and required inspection documents.\"}}]}<\/script>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cixuan1.semitanker.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Teflon Coated Magnets\",\"item\":\"https:\/\/cixuan1.semitanker.com\/teflon-coated-magnets\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"17 \u00d7 52 mm PTFE Magnetic Bar\",\"item\":\"https:\/\/cixuan1.semitanker.com\/17x52mm-ptfe-magnetic-bar\/\"}]}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Battery Material Magnetic Impurity Testing 17 \u00d7 52 mm PTFE Magnetic Bar OSENC supplies a compact PTFE-encapsulated magnetic rod for collecting ferromagnetic particles from battery powders, NMP-based slurries and laboratory sample-preparation workflows. We review the finished-surface field target, coating integrity, pole arrangement, chemistry, temperature and test method before production. Request an Engineering Review Send Your [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2462","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/pages\/2462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/comments?post=2462"}],"version-history":[{"count":7,"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/pages\/2462\/revisions"}],"predecessor-version":[{"id":2489,"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/pages\/2462\/revisions\/2489"}],"wp:attachment":[{"href":"https:\/\/cixuan1.semitanker.com\/pt\/wp-json\/wp\/v2\/media?parent=2462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}