{"product_id":"automatic-aluminum-screen-frame-roughening-machine-model-dhj-600","title":"Automatic Aluminum Screen Frame Roughening Machine — Grinding before stretching","description":"\u003cstyle\u003e\n    .dhj600-pdp { font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif; color: #1f2430; line-height: 1.6; max-width: 900px; margin: 0 auto; }\n    .dhj600-pdp * { box-sizing: border-box; }\n    .dhj600-pdp h2 { font-size: 26px; font-weight: 700; margin: 48px 0 16px; color: #14181f; letter-spacing: -0.01em; }\n    .dhj600-pdp h2:first-of-type { margin-top: 0; }\n    .dhj600-pdp h3 { font-size: 18px; font-weight: 700; margin: 0 0 8px; color: #14181f; }\n    .dhj600-pdp p { margin: 0 0 16px; font-size: 15px; color: #3a4150; }\n    .dhj600-pdp .eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #0f6b52; background: #e3f6ef; padding: 5px 12px; border-radius: 999px; margin-bottom: 14px; }\n    .dhj600-pdp .hero-title { font-size: 32px; font-weight: 800; line-height: 1.2; margin: 0 0 10px; color: #10131a; }\n    .dhj600-pdp .hero-sub { font-size: 17px; color: #545c6b; margin: 0 0 24px; }\n    .dhj600-pdp .badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }\n    .dhj600-pdp .badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; background: #f2f3f5; color: #2c313c; padding: 8px 14px; border-radius: 8px; border: 1px solid #e3e5ea; }\n    .dhj600-pdp .img-box { background: #eef0f3; border: 1.5px dashed #c3c8d1; border-radius: 12px; padding: 40px 20px; text-align: center; color: #6b7280; font-size: 13px; margin: 0 0 28px; }\n    .dhj600-pdp .img-box strong { display: block; font-size: 14px; color: #3a4150; margin-bottom: 4px; }\n    .dhj600-pdp .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 8px; }\n    .dhj600-pdp .feature-card { background: #f8f9fb; border: 1px solid #eceef2; border-radius: 12px; padding: 22px; }\n    .dhj600-pdp .feature-card .icon { width: 40px; height: 40px; border-radius: 10px; background: #0f6b52; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; margin-bottom: 12px; }\n    .dhj600-pdp .feature-card p { font-size: 14px; margin: 0; color: #4a5160; }\n    .dhj600-pdp table.spec-table { width: 100%; border-collapse: collapse; margin: 0 0 28px; font-size: 14px; }\n    .dhj600-pdp table.spec-table tr { border-bottom: 1px solid #eceef2; }\n    .dhj600-pdp table.spec-table tr:last-child { border-bottom: none; }\n    .dhj600-pdp table.spec-table td { padding: 13px 16px; vertical-align: top; }\n    .dhj600-pdp table.spec-table td:first-child { width: 42%; font-weight: 600; color: #2c313c; background: #f8f9fb; }\n    .dhj600-pdp table.spec-table td:last-child { color: #3a4150; }\n    .dhj600-pdp .note-box { background: #fff7e6; border: 1px solid #f3dea0; border-radius: 10px; padding: 16px 18px; font-size: 14px; color: #6b5100; margin: 0 0 28px; }\n    .dhj600-pdp .note-box strong { color: #4a3900; }\n    .dhj600-pdp .steps { margin: 0; padding: 0; list-style: none; counter-reset: step; }\n    .dhj600-pdp .steps li { counter-increment: step; position: relative; padding: 0 0 20px 44px; font-size: 14px; color: #3a4150; }\n    .dhj600-pdp .steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #10131a; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }\n    .dhj600-pdp .steps li strong { display: block; color: #14181f; margin-bottom: 2px; font-size: 14.5px; }\n    .dhj600-pdp .callout-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 24px; margin-bottom: 28px; }\n    .dhj600-pdp .callout-grid div { font-size: 14px; padding: 10px 0; border-bottom: 1px dotted #dfe2e8; color: #3a4150; }\n    .dhj600-pdp .callout-grid div b { color: #14181f; }\n    .dhj600-pdp .closing { background: #10131a; color: #f2f3f5; border-radius: 14px; padding: 28px 30px; margin-top: 12px; }\n    .dhj600-pdp .closing h3 { color: #fff; }\n    .dhj600-pdp .closing p { color: #c7cbd4; margin-bottom: 0; }\n    @media (max-width: 640px) {\n      .dhj600-pdp .feature-grid { grid-template-columns: 1fr; }\n      .dhj600-pdp .callout-grid { grid-template-columns: 1fr; }\n      .dhj600-pdp table.spec-table td:first-child { width: 46%; }\n    }\n  \u003c\/style\u003e\n\u003cdiv class=\"dhj600-pdp\"\u003e\n\u003c!-- ===== Hero ===== --\u003e \u003cspan class=\"eyebrow\"\u003eScreen Printing Frame Equipment\u003c\/span\u003e\n\u003ch2 class=\"hero-title\" style=\"margin-top: 0;\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003cp class=\"hero-sub\"\u003eDual-wheel automated surface abrading system for aluminum screen printing frames — built for PCB, SMT, mobile glass, and textile screen printing production lines.\u003c\/p\u003e\n\u003cdiv class=\"badge-row\"\u003e\n\u003cspan class=\"badge\"\u003e✔ UL Certified\u003c\/span\u003e \u003cspan class=\"badge\"\u003e⚙ 100–180 Frames \/ Hour\u003c\/span\u003e \u003cspan class=\"badge\"\u003e⚡ US Voltage Available (208V \/ 230V \/ 460V, 60Hz)\u003c\/span\u003e \u003cspan class=\"badge\"\u003e🛠 Dual Grinding Wheel System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"img-box\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0847\/3611\/4979\/files\/grinding_machine_for_screen_printing_frame_re-stretching_1.png?v=1785429435\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c!-- ===== Overview ===== --\u003e\n\u003ch2\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ulp0__55Cb8?si=1s-TcxX_R_ufu5_1\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/h2\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe DHJ-600 is engineered for the surface roughening (abrading\/scuffing) of aluminum screen printing frames used across the PCB, mobile phone cover glass, SMT, and textile screen printing industries. Raw extruded aluminum frames have smooth surfaces that mesh adhesive cannot bond to reliably — this machine automates the roughening step with dual motorized grinding wheels and a continuous slat conveyor, replacing manual hand-sanding entirely.\u003c\/p\u003e\n\u003cp\u003eBy eliminating manual wire-brushing and hand-grinding, the DHJ-600 cuts labor costs, reduces operator fatigue and injury risk, and delivers fast, uniform surface preparation for optimal mesh bonding — pass after pass, frame after frame.\u003c\/p\u003e\n\u003c!-- ===== Key Advantages ===== --\u003e\n\u003ch2\u003eKey Advantages\u003c\/h2\u003e\n\u003cdiv class=\"feature-grid\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cdiv class=\"icon\"\u003e⚡\u003c\/div\u003e\n\u003ch3\u003eEfficiency \u0026amp; Labor Savings\u003c\/h3\u003e\n\u003cp\u003eReplaces manual hand-sanding with a conveyor system processing approximately 100–180 frames per hour.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cdiv class=\"icon\"\u003e⟲\u003c\/div\u003e\n\u003ch3\u003eDual-Surface Processing\u003c\/h3\u003e\n\u003cp\u003eTwo motorized grinding wheels scuff both the inner and outer contact surfaces of the aluminum frame simultaneously, in a single pass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cdiv class=\"icon\"\u003e✓\u003c\/div\u003e\n\u003ch3\u003eSafety \u0026amp; Consistency\u003c\/h3\u003e\n\u003cp\u003eReduces operator fatigue and injury risk associated with manual wire-brushing or grinding, while delivering uniform surface roughness on every frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"img-box\" style=\"margin-top: 24px;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0847\/3611\/4979\/files\/grinding_machine_for_screen_printing_frame_re-stretch_aluminum_frame_1.png?v=1785429456\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c!-- ===== Specs ===== --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDHJ-600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e2700 × 700 × 800 mm (106.3\" × 27.6\" × 31.5\") — total height with grinding motor: 1300 mm (51.2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearmotor Power Rating\u003c\/td\u003e\n\u003ctd\u003e1100 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding Motor Power Rating\u003c\/td\u003e\n\u003ctd\u003e350 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e380V \/ 50Hz standard — custom 208V \/ 230V \/ 460V, 60Hz available for US installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThroughput\u003c\/td\u003e\n\u003ctd\u003eApprox. 100–180 frames \/ hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e150 kg (approx. 330 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Rotation Direction\u003c\/td\u003e\n\u003ctd\u003eCounterclockwise (CCW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"note-box\"\u003e\n\u003cstrong\u003eUS Power Note:\u003c\/strong\u003e This machine ships standard at 380V \/ 50Hz. For US industrial facilities, we offer custom configurations at 208V, 230V, or 460V \/ 60Hz 3-phase power — please contact us before ordering to confirm the correct voltage for your facility, or ask about a step-up\/step-down transformer option.\u003c\/div\u003e\n\u003c!-- ===== Controls ===== --\u003e\n\u003ch2\u003eControls \u0026amp; Adjustments\u003c\/h2\u003e\n\u003cdiv class=\"callout-grid\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eInner Grinding Wheel\u003c\/b\u003e — abrades the inside edge of the frame\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eOuter Grinding Wheel\u003c\/b\u003e — abrades the outside edge of the frame\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFrame Travel Direction\u003c\/b\u003e — indicates conveyor feed direction\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHeight Adjustment Handwheel\u003c\/b\u003e — sets vertical grinding height\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eDepth Adjustment Handwheel\u003c\/b\u003e — sets front-to-back wheel position\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMain Circuit Breaker\u003c\/b\u003e — controls primary electrical feed\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"img-box\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0847\/3611\/4979\/files\/grinding_motor_for_screen_frame_re-stretching_service_1.png?v=1785429583\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c!-- ===== How to Use ===== --\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003col class=\"steps\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Connection\u003c\/strong\u003eConnect the unit to the proper electrical supply (380V\/50Hz or your local US-configured standard).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Alignment\u003c\/strong\u003eUse a sample frame of your target size to adjust the grinding wheel positions before running production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStartup\u003c\/strong\u003eTurn on the main power switch to start the conveyor and grinding motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoading\u003c\/strong\u003eWith both hands, place the aluminum frame onto the slat chain conveyor, flush against the positioning stop blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessing\u003c\/strong\u003eLightly press down on the frame with both hands as it moves through the grinding zone to complete roughening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Changeover\u003c\/strong\u003eTurn off the power and wait for all rotating parts to fully stop before adjusting handwheels for a different frame size.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c!-- ===== Closing ===== --\u003e\n\u003cdiv class=\"closing\"\u003e\n\u003ch3\u003eNeed a Custom Configuration?\u003c\/h3\u003e\n\u003cp\u003eEvery facility is different. If you need a specific US voltage, a modified frame-size range, or have other custom machinery requirements, contact our technical service team — we're happy to help you spec the right setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SHL LA SUPPLY","offers":[{"title":"Default Title","offer_id":55399982629155,"sku":null,"price":4500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/3611\/4979\/files\/automatedsurfacerougheningmachineforscreenprintingframe_1.png?v=1785429604","url":"https:\/\/shl-supply.com\/products\/automatic-aluminum-screen-frame-roughening-machine-model-dhj-600","provider":"SHL LA SUPPLY","version":"1.0","type":"link"}