{"id":5308,"date":"2026-08-25T05:23:55","date_gmt":"2026-08-25T05:23:55","guid":{"rendered":"https:\/\/spotlight-motor.com\/?post_type=product&#038;p=5308"},"modified":"2026-08-25T05:32:39","modified_gmt":"2026-08-25T05:32:39","slug":"spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor","status":"publish","type":"product","link":"https:\/\/spotlight-motor.com\/zh\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/","title":{"rendered":"SPBI57RC 57 mm \u80cc\u5305\u5f0f\u96c6\u6210\u95ed\u73af\u6b65\u8fdb\u7535\u673a"},"content":{"rendered":"<style>\nbody.postid-5308 {\n  overflow-x: hidden;\n}\nbody.postid-5308 [data-id=\"691a024\"] {\n  height: auto !important;\n  min-height: 27px !important;\n  overflow: visible !important;\n}\nbody.postid-5308 [data-id=\"691a024\"] > .elementor-widget-container {\n  height: auto !important;\n  min-height: 27px !important;\n  margin-top: 0 !important;\n  overflow: visible !important;\n}<\/p>\n<p>body.postid-5308 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th:first-child,.sl-data-table tbody th{position:sticky;left:0;z-index:2;width:210px!important;min-width:210px!important;max-width:210px!important;white-space:normal;background:#0b141c;color:#fff}.sl-data-table thead th:first-child{z-index:3}}<\/style>\n<div class=\"sl-product-page\">\n<nav class=\"sl-fullbleed sl-detail-nav\" aria-label=\"Product detail navigation\">\n<div class=\"sl-inner sl-detail-nav__inner\"><a href=\"https:\/\/spotlight-motor.com\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/#sl-features\">Product benefits<\/a><a href=\"https:\/\/spotlight-motor.com\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/#sl-technical\">Technical data<\/a><a href=\"https:\/\/spotlight-motor.com\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/#sl-integration\">Integration<\/a><a href=\"https:\/\/spotlight-motor.com\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/#sl-applications\">Applications<\/a><a href=\"https:\/\/spotlight-motor.com\/product\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor\/#sl-consultation\">Request consultation<\/a><\/div>\n<\/nav>\n<section id=\"sl-features\" class=\"sl-fullbleed sl-section sl-features\">\n<div class=\"sl-inner\">\n<div class=\"sl-kicker\">Compact backpack integration<\/div>\n<h2 class=\"sl-title\">Closed-loop motion control in a 57 mm backpack package<\/h2>\n<p class=\"sl-lead\">The 57 mm backpack integrated closed-loop stepper motor combines a compact hybrid stepper motor with rear-mounted drive electronics. Its 20\u201340 VDC supply range and four verified motor options support space-conscious automation equipment.<\/p>\n<div class=\"sl-feature-grid\">\n<article class=\"sl-feature-card\">\n<div class=\"sl-feature-icon\" aria-hidden=\"true\"><\/div>\n<h3>Compact 57 mm frame<\/h3>\n<p>The rear-mounted electronics preserve a compact square motor interface for machines with limited installation space.<\/p>\n<\/article>\n<article class=\"sl-feature-card\">\n<div class=\"sl-feature-icon\" aria-hidden=\"true\"><\/div>\n<h3>Closed-loop control<\/h3>\n<p>Integrated feedback and drive electronics support controlled positioning while reducing separate control components.<\/p>\n<\/article>\n<article class=\"sl-feature-card\">\n<div class=\"sl-feature-icon\" aria-hidden=\"true\"><\/div>\n<h3>Four motor options<\/h3>\n<p>Verified 41, 51, 55 and 76 mm motor-body lengths provide holding torque choices from 0.51 to 1.66 N\u00b7m.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"sl-technical\" class=\"sl-fullbleed sl-section sl-tech\">\n<div class=\"sl-inner\">\n<div class=\"sl-kicker\">Engineering information<\/div>\n<h2 class=\"sl-title\">Technical data<\/h2>\n<p class=\"sl-lead\">Electrical ratings and model configurations for the BI57RC backpack integrated closed-loop stepper motor.<\/p>\n<div class=\"sl-spec-grid\">\n<div class=\"sl-spec\"><strong>57 mm<\/strong>Frame size<\/div>\n<div class=\"sl-spec\"><strong>20\u201340 VDC<\/strong>Supply voltage<\/div>\n<div class=\"sl-spec\"><strong>6 Apeak<\/strong>Peak output current<\/div>\n<div class=\"sl-spec\"><strong>12\u201324 V<\/strong>Input signal voltage<\/div>\n<\/div>\n<div class=\"sl-parameter-layout\">\n<section class=\"sl-parameter-panel sl-parameter-panel--wide\">\n<div class=\"sl-parameter-head\">\n<div>Electrical<\/p>\n<h3>Electrical operating parameters<\/h3>\n<\/div>\n<\/div>\n<div class=\"sl-table-scroll\">\n<table class=\"sl-data-table\">\n<caption>BI57RC electrical operating parameters<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Parameter<\/th>\n<th scope=\"col\">Unit<\/th>\n<th scope=\"col\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Peak output current<\/th>\n<td>A<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Supply voltage<\/th>\n<td>VDC<\/td>\n<td>20\u201340<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Single-ended input signal voltage<\/th>\n<td>V<\/td>\n<td>12\u201324<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Maximum output signal logic current<\/th>\n<td>mA<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Maximum output signal pull-up voltage<\/th>\n<td>VDC<\/td>\n<td>30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"sl-parameter-panel sl-parameter-panel--wide\">\n<div class=\"sl-parameter-head\">\n<div>Motor options<\/p>\n<h3>BI57RC model selection<\/h3>\n<\/div>\n<p>Four verified configurations provide holding torque options from 0.51 to 1.66 N\u00b7m.<\/p><\/div>\n<div class=\"sl-table-scroll\">\n<table class=\"sl-data-table\">\n<caption>BI57RC motor configuration options<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Model<\/th>\n<th scope=\"col\">Step angle<\/th>\n<th scope=\"col\">Leads<\/th>\n<th scope=\"col\">Current (A)<\/th>\n<th scope=\"col\">Holding torque (N\u00b7m)<\/th>\n<th scope=\"col\">Body length (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">HD-57H041H-2804<\/th>\n<td>1.8\u00b0<\/td>\n<td>4<\/td>\n<td>2.80<\/td>\n<td>0.51<\/td>\n<td>41<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">HD-57H051H-2804<\/th>\n<td>1.8\u00b0<\/td>\n<td>4<\/td>\n<td>2.80<\/td>\n<td>0.83<\/td>\n<td>51<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">HD-57H055H-2804<\/th>\n<td>1.8\u00b0<\/td>\n<td>4<\/td>\n<td>2.80<\/td>\n<td>1.00<\/td>\n<td>55<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">HD-57H076H-2804<\/th>\n<td>1.8\u00b0<\/td>\n<td>4<\/td>\n<td>2.80<\/td>\n<td>1.66<\/td>\n<td>76<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"sl-integration\" class=\"sl-fullbleed sl-showcase\">\n<div class=\"sl-inner sl-showcase-grid\">\n<div>\n<div class=\"sl-kicker\">Backpack architecture<\/div>\n<h2 class=\"sl-title\">Integrated control with a compact motor footprint<\/h2>\n<p>The drive electronics mount behind the 57 mm motor, creating a practical integrated axis component for compact machine layouts.<\/p>\n<ul class=\"sl-checks\">\n<li>Motor, feedback and drive electronics in one assembly<\/li>\n<li>20\u201340 VDC power supply range<\/li>\n<li>12\u201324 V single-ended input signal interface<\/li>\n<\/ul>\n<\/div>\n<div class=\"sl-product-visual\"><img decoding=\"async\" src=\"https:\/\/spotlight-motor.com\/wp-content\/uploads\/2026\/08\/spbi57rc-57-mm-backpack-integrated-closed-loop-stepper-motor.png\" alt=\"SPBI57RC 57 mm backpack integrated closed-loop stepper motor\"  title=\"SPBI57RC 57 mm Backpack Integrated Closed-loop Stepper Motor\" \/><\/div>\n<\/div>\n<\/section>\n<section id=\"sl-applications\" class=\"sl-fullbleed sl-section sl-applications\">\n<div class=\"sl-inner\">\n<div class=\"sl-kicker\">Application fields<\/div>\n<h2 class=\"sl-title\">Designed for compact precision automation<\/h2>\n<p class=\"sl-lead\">The backpack configuration is suited to equipment requiring a compact motor frame, integrated control and simplified machine wiring.<\/p>\n<div class=\"sl-application-grid\">\n<article class=\"sl-application-card\"><b>01<\/b><\/p>\n<h3>Laboratory automation<\/h3>\n<p>Sample handling, dosing and compact analytical instruments.<\/p>\n<\/article>\n<article class=\"sl-application-card\"><b>02<\/b><\/p>\n<h3>Precision inspection<\/h3>\n<p>Camera positioning, optical adjustment and metrology mechanisms.<\/p>\n<\/article>\n<article class=\"sl-application-card\"><b>03<\/b><\/p>\n<h3>Semiconductor equipment<\/h3>\n<p>Auxiliary transfer, alignment and compact positioning axes.<\/p>\n<\/article>\n<article class=\"sl-application-card\"><b>04<\/b><\/p>\n<h3>Compact robotics<\/h3>\n<p>Lightweight axes, end effectors and distributed automation modules.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sl-fullbleed sl-section sl-integration\">\n<div class=\"sl-inner sl-integration-grid\">\n<div>\n<div class=\"sl-kicker\">System integration<\/div>\n<h2 class=\"sl-title\">Verified interfaces for machine design<\/h2>\n<p class=\"sl-lead\">Select the motor configuration according to the required holding torque, body length, winding current and available installation envelope.<\/p>\n<\/div>\n<div class=\"sl-data-list\">\n<div class=\"sl-data-row\">Power supply<strong>20\u201340 VDC<\/strong><\/div>\n<div class=\"sl-data-row\">Peak output current<strong>6 A<\/strong><\/div>\n<div class=\"sl-data-row\">Single-ended input signal<strong>12\u201324 V<\/strong><\/div>\n<div class=\"sl-data-row\">Output signal limits<strong>100 mA \/ 30 VDC pull-up<\/strong><\/div>\n<div class=\"sl-data-row\">Mechanical format<strong>57 mm backpack integrated package<\/strong><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"sl-consultation\" class=\"sl-fullbleed sl-cta\">\n<div class=\"sl-inner sl-cta-inner\">\n<div>\n<h2>Discuss your compact motion requirement with our engineers.<\/h2>\n<p>Share your voltage, load, speed, signal and installation requirements for product selection and integration support.<\/p>\n<\/div>\n<p><a class=\"sl-button\" href=\"https:\/\/spotlight-motor.com\/contact\/\">Request consultation&nbsp;&nbsp;\u2192<\/a><\/div>\n<\/section>\n<section class=\"sl-fullbleed sl-related\">\n<div class=\"sl-inner sl-related-inner\">\n<div>\n<h3>Explore related motion solutions<\/h3>\n<p>Compare additional integrated closed-loop stepper motor options.<\/p>\n<\/div>\n<p><a href=\"https:\/\/spotlight-motor.com\/product-category\/intelligent-drive-integrated-solutions\/backpack-integrated-closed-loop-stepper-motor\/\">View product category&nbsp;\u2192<\/a><\/div>\n<\/section>\n<\/div>\n<style>body.postid-5308 .sl-feature-card{transition:transform .25s ease,box-shadow .25s ease}body.postid-5308 .sl-feature-card:hover{transform:translateY(-7px);box-shadow:0 26px 54px rgba(18,39,58,.10)}@media (prefers-reduced-motion:reduce){body.postid-5308 .sl-feature-card{transition:none!important}body.postid-5308 .sl-feature-card:hover{transform:none!important;box-shadow:none!important}}<\/style>\n","protected":false},"excerpt":{"rendered":"<p>SPBI57RC \u662f\u4e00\u6b3e 57 mm \u80cc\u5305\u5f0f\u96c6\u6210\u95ed\u73af\u6b65\u8fdb\u7535\u673a\uff0c\u652f\u6301 20\u201340 VDC \u4f9b\u7535\uff0c\u5cf0\u503c\u8f93\u51fa\u7535\u6d41 6 A\uff0c\u5e76\u63d0\u4f9b\u56db\u79cd\u7ecf\u9a8c\u8bc1\u7684\u7535\u673a\u9009\u9879\uff0c\u9002\u7528\u4e8e\u5de5\u4e1a\u81ea\u52a8\u5316\u8bbe\u5907\u3002<\/p>","protected":false},"featured_media":5307,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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is a 57 mm backpack integrated closed-loop stepper motor with 20\u201340 VDC supply, 6 A peak output and four verified motor options for industrial automation equipment.","_links":{"self":[{"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/product\/5308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/comments?post=5308"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/media\/5307"}],"wp:attachment":[{"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/media?parent=5308"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/product_brand?post=5308"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/product_cat?post=5308"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/spotlight-motor.com\/zh\/wp-json\/wp\/v2\/product_tag?post=5308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}