{"id":2257,"date":"2026-07-10T04:12:41","date_gmt":"2026-07-10T04:12:41","guid":{"rendered":"https:\/\/swesd.com\/blog\/esd-tray-for-smt\/"},"modified":"2026-07-10T04:12:44","modified_gmt":"2026-07-10T04:12:44","slug":"esd-tray-for-smt","status":"publish","type":"post","link":"https:\/\/swesd.com\/ru\/blog\/esd-tray-for-smt\/","title":{"rendered":"ESD Tray for SMT: Dividers, Sizing, and Line-Side Staging"},"content":{"rendered":"<div class=\"b2b-article\" style=\"max-width:820px;margin:0 auto;\">\n<p style=\"margin:0 0 16px;line-height:1.7;\">An <strong>ESD tray for SMT<\/strong> is a conductive or dissipative staging container\u2014often with dividers, grids, or lids\u2014used to organize reels, waffle packs, and small assemblies beside pick-and-place and inspection stations. This guide explains tray types, material classes, sizing for SMT workflows, and what procurement teams should document before quoting. Written for global electronics manufacturing and EPA teams; specify 50 or 60 Hz plant power only where grounding interfaces matter, not for tray material selection.<\/p>\n<nav style=\"background:#f7f9fb;border:1px solid #e3e8ee;border-radius:8px;padding:14px 18px;margin:0 0 24px;\">\n<p style=\"margin:0 0 16px;line-height:1.7;\"><strong>On this page<\/strong><\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7;\">\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-1-what-is-an-esd-tray-for-smt\">Part 1. What is an ESD tray for SMT?<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-2-where-trays-sit-in-the-smt-workflow\">Part 2. Where trays sit in the SMT workflow<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-3-material-resistance-and-permanence\">Part 3. Material, resistance, and permanence<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-4-dividers-grids-lids-and-customization\">Part 4. Dividers, grids, lids, and customization<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-5-sizing-trays-for-reels-packs-and-odd-form\">Part 5. Sizing trays for reels, packs, and odd-form parts<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-6-cleaning-epa-handling-and-transport\">Part 6. Cleaning, EPA handling, and transport<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-7-common-specification-mistakes\">Part 7. Common specification mistakes<\/a><\/li>\n<li style=\"margin:0 0 16px;line-height:1.7;\"><a href=\"#part-8-matching-esd-trays-to-your-smt-staging-pl\">Part 8. Matching ESD trays to your SMT staging plan<\/a><\/li>\n<\/ul>\n<\/nav>\n<figure style=\"margin:26px 0;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px;\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/07\/esd-tray-for-smt-cover.webp\" alt=\"ESD tray for SMT line-side staging concept illustration (not a product photo)\" width=\"640\" height=\"360\"\/><\/figure>\n<h2 id=\"part-1-what-is-an-esd-tray-for-smt\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 1. What is an ESD tray for SMT?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">SMT-oriented ESD trays are shallow or compartmented carriers molded from carbon-filled polypropylene, conductive PS, or thermoformed ESD sheet. They keep static-sensitive parts in a controlled resistance range while operators transfer kits between warehouse, line-side, and QC.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Unlike deep totes, trays emphasize fast visual access and cell-level organization\u2014dividers separate lots, reel hubs, or waffle-pack lanes without mixing leads.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Trays are not magazine racks: they stage components and subkits, while racks buffer PCBs between machines. Most plants use trays upstream of placement and racks between process steps.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Cross-site tray standards prevent regional buyers from ordering incompatible divider inserts during MRO emergencies.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Returnable tray loops need damage criteria\u2014cracked cells can harbor insulative debris that fails audits.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Tray families buyers encounter<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Injection-molded Euro-footprint trays (for example 600\u00d7400 mm class) stack on pallets and conveyors. Thermoformed precision trays target IC packaging and automation pick cells. Divider grids snap into tote bases for configurable compartments.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:0 0 20px;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Tray style<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Typical contents<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">SMT fit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Shallow stackable tray<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Waffle packs, labels<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Line-side staging<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Divider grid insert<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">ICs, connectors<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Kitting desks<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Reel-oriented cell<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">7&#8243;\/13&#8243; hubs<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Changeover buffers<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Lidded tray<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Dust-sensitive lots<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Short warehouse moves<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"tip-box\" style=\"border-left:4px solid #2e7d32;background:#f3faf4;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Tip:<\/strong> Photograph tray footprint beside the feeder cart before RFQ\u2014Euro 600\u00d7400 mm is common but not universal.<\/div>\n<h2 id=\"part-2-where-trays-sit-in-the-smt-workflow\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 2. Where trays sit in the SMT workflow<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Kitting desks preload trays with the next BOM line while the current product runs. Operators slide trays to the line on grounded carts rather than carrying loose reels.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Between printer and placement, small mechanical inserts or odd-form parts often live in divided trays when feeders cannot hold them.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">QC hold and rework benches use separate tray colors or labels so quarantined lots never share cells with released material.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Digital photos of grounded cart setups accelerate export desk quoting more than verbal descriptions alone.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Engineering reviews should include EHS, quality, and logistics\u2014not only unit price\u2014before locking a global tray standard.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Tray versus bin versus rack<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Bins excel at bulk and drawer access; trays excel at shallow, visible cells. Racks move PCBs\u2014do not substitute a tray for inter-machine panel buffering unless your program explicitly allows short manual carries in shielding packaging.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:0 0 20px;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Zone<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Typical tray role<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Grounding note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Kitting<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">BOM line preload<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Cart to mat common point<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Line side<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Odd-form staging<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Tray on dissipative bench<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">QC hold<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Quarantine cells<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Physically separate colors<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Warehouse<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Inbound samples<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Bag if long storage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"margin:26px 0;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px;\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/07\/esd-tray-for-smt-body.webp\" alt=\"ESD Tray for SMT \u2014 Sanwei official product with illustrative industrial background (not a real site photo)\" width=\"640\" height=\"360\"\/><\/figure>\n<div class=\"tip-box\" style=\"border-left:4px solid #2e7d32;background:#f3faf4;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Tip:<\/strong> Map tray moves on a spaghetti diagram\u2014unexpected dwell at AOI drives tray count more than feeder count.<\/div>\n<h2 id=\"part-3-material-resistance-and-permanence\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 3. Material, resistance, and permanence<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Permanent conductive or dissipative PP\/PS is preferred over topical coatings that wear in wash cycles. Suppliers often cite 10\u2074\u201310\u00b9\u2070 \u03a9 depending on filler loading and test method\u2014align readings to IEC 61340-5-1 and your ANSI\/ESD S20.20 program tier.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Thermoformed trays may use thinner sheet (0.8\u20132.0 mm class) than injection shells; match wall thickness to handling abuse and stack load.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Lids and dividers must be the same material class as the base\u2014an insulative cover on a dissipative tray breaks enclosure integrity.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Seasonal humidity shifts can change cell-level resistance\u2014schedule checks before customer audits, not only after failures.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Pilot trays on two shifts and log mis-picks, wash time, and grounding exceptions before plant-wide rollout.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Measurement and record keeping<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Log resistance at inbound inspection and after cleaning cycles. Flux mist and oils can shift readings over weeks of production.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Request test method (point-to-point vs surface resistivity) and RH conditions used in supplier reports.<\/p>\n<div class=\"warning-box\" style=\"border-left:4px solid #f9a825;background:#fffbf0;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Important:<\/strong> Do not assume black plastic equals ESD-safe. Verify certificates for the exact SKU and molder lot.<\/div>\n<h2 id=\"part-4-dividers-grids-lids-and-customization\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 4. Dividers, grids, lids, and customization<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Divider slots let buyers reconfigure cells without new molds\u2014confirm slot pitch and divider height for your tallest component body.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Grid containers combine outer tote shells with conductive inserts; inserts should be removable for wash and lot changeover.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Thermoformed custom cavities suit IC rails and automation pick\u2014lead time and tooling amortization matter for export programs.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Contract manufacturers should align tray specs with customer EPA questionnaires before onboarding new SKUs.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Document carton dimensions early so inbound logistics avoids repallet charges at port.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Labeling and traceability<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Label holders and barcode windows speed MES scans\u2014place labels where they do not block grounding contact between tray base and mat.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:0 0 20px;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Accessory<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Benefit<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Watch-out<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Snap-in divider<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Flexible cells<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Wash compatibility<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Hinged lid<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Dust control<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Hinge polymer class<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Foam insert<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Cushioning<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Must be ESD-grade<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Custom cavity<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Automation pick<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Tooling MOQ<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"part-5-sizing-trays-for-reels-packs-and-odd-form\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 5. Sizing trays for reels, packs, and odd-form parts<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">For reel kits, confirm hub diameter and outer reel width\u20147-inch and 13-inch classes need different cell depth and corner clearance.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Waffle packs and cut-tape strips need flat cells with anti-slide ribs; measure pack length plus tweezers clearance.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Odd-form parts (connectors, shields) often dictate tray height more than reel diameter\u2014stack height limits apply when trays nest.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Video clips of correct tray placement on mats reduce training time during contractor rotations.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Label each tray family to prevent night-shift lot mixing.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Stack load and ergonomics<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Euro trays may cite static load near 15 kg and stack load near 150 kg in catalog data\u2014validate against your safety policy, not marketing photos alone.<\/p>\n<div class=\"tip-box\" style=\"border-left:4px solid #2e7d32;background:#f3faf4;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Tip:<\/strong> Pilot one tray type per shift for two weeks and log mis-picks before plant-wide standardization.<\/div>\n<h2 id=\"part-6-cleaning-epa-handling-and-transport\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 6. Cleaning, EPA handling, and transport<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Wipe trays when flux residue or oils accumulate; verify cleaning chemicals against PP\/PS compatibility.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Personnel must remain grounded while loading trays; trays alone do not replace wrist-strap or footwear controls.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">For warehouse transits longer than your program allows on open trays, use shielding bags or lidded enclosures per your EPA travel rules.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Spare divider and lid MOQ should be budgeted before peak season\u2014shortages stall kitting during ramp.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Closed-loop logistics<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Returnable tray programs need wash, inspection, and resistance re-check intervals\u2014treat trays as controlled tools, not disposable corrugated.<\/p>\n<div class=\"tip-box\" style=\"border-left:4px solid #2e7d32;background:#f3faf4;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Tip:<\/strong> Color-code trays by product family when multiple BOMs share one bench.<\/div>\n<h2 id=\"part-7-common-specification-mistakes\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 7. Common specification mistakes<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Ordering topical anti-static trays when the program requires permanent conductive PP is a frequent audit failure.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Mixing divider inserts from another supplier&#8217;s shell often fails slot tolerance and ESD continuity at cell corners.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Specifying tray depth without measuring feeder cart rail height causes trays to snag on guard panels.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Ignoring temperature limits (-10 \u00b0C to +60 \u00b0C cited on many PP trays) when staging near warm equipment can warp cells.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Facilities running both 50 Hz and 60 Hz lines should still specify the same ESD tray material class; grounding audits focus on resistance paths.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">RFQ discipline<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Attach photos, quantity bands, divider layout sketches, and required markings (RoHS, lot labels). Export desks quote faster when cells are defined, not guessed.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:0 0 20px;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">RFQ field<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Example<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f4f7fa;text-align:left;\">Owner<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Cell layout<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">4\u00d76 grid sketch<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Process engineer<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Resistance<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">10\u2076\u201310\u2079 \u03a9 target<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">ESD coordinator<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Reel class<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">13&#8243; OD max<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Materials<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Stack height<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">4 trays max<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">EHS<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Wash method<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Isopropyl wipe<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px;vertical-align:top;\">Maintenance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"warning-box\" style=\"border-left:4px solid #f9a825;background:#fffbf0;padding:12px 16px;margin:0 0 18px;line-height:1.7;\"><strong>Important:<\/strong> Trays stage and organize\u2014they do not replace shielding for long uncontrolled warehouse storage unless your program explicitly allows it.<\/div>\n<h2 id=\"part-8-matching-esd-trays-to-your-smt-staging-pl\" style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">Part 8. Matching ESD trays to your SMT staging plan<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7;\">When trays sit beside placement or kitting stations, buyers usually standardize one conductive PP family with compatible dividers and lids across shifts.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Start from cell layout and reel\/pack envelopes, then confirm resistance logs at your facility RH band\u2014humidity and chemical exposure matter more than mains frequency for material choice.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Compare total cost of ownership: divider compatibility, wash labor, and spare insert MOQ often exceed unit price deltas between tray vendors.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Documentation to send with your inquiry<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Include bench photos, maximum stack height, part drawings, and EPA test interval. Sanwei export engineering can match tray footprints, divider options, and carton data to your line layout.<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7;\">\n<li><a href=\"https:\/\/swesd.com\/esd-tray\">ESD Tray<\/a><\/li>\n<li><a href=\"https:\/\/swesd.com\/contact-us\">Contact Us<\/a><\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Share your cell layout sketch, reel sizes, and annual quantity bands with Sanwei export engineering via Contact Us for ESD tray model matching, resistance documentation, and packing dimensions.<\/p>\n<figure style=\"margin:26px 0;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px;\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/07\/esd-tray-for-smt-product.webp\" alt=\"Sanwei esd_tray \u2014 official product photo with illustrative scene background (not a real site photo)\" width=\"640\" height=\"360\"\/><\/figure>\n<h2 style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">FAQ<\/h2>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">What is the difference between an ESD tray and an ESD bin for SMT?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Trays emphasize shallow cells and dividers for visible staging beside the line. Bins and drawer stacks handle deeper storage and bulk kitting. Many programs use trays at the bench and bins at the warehouse.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">What surface resistance should ESD trays meet?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Programs commonly cite dissipative or conductive ranges from 10\u2074 to 10\u00b9\u2070 \u03a9 depending on tier. Confirm supplier test method and whether readings cover inner cells and outer base per IEC 61340-5-1.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Can ESD trays replace magazine racks on SMT lines?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">No. Trays organize components and subkits; magazine racks buffer PCBs between machines. Use racks for panel flow and trays for part staging.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">When are dividers or grid inserts required?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Use dividers when multiple lots share one tray, when reel hubs need isolation, or when automation expects fixed pick cells. Verify divider material class matches the shell.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">How should buyers document tray requirements in an RFQ?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Provide cell sketches, reel or pack dimensions, stack height limits, wash chemicals, color\/label plan, and quantity bands. Photos of the workstation reduce sizing errors.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Are thermoformed ESD trays suitable for automation?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Custom cavities can mate with pick-and-place or tray feeders when drawings and tolerance stacks are agreed early. Injection trays may be faster to source for standard Euro footprints.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">Do ESD trays need lids for EPA compliance?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Lids help dust control and enclosure integrity when the base is dissipative. Match lid polymer class to the tray body and ground personnel during loading.<\/p>\n<h3 style=\"margin:28px 0 10px;font-size:1.15em;line-height:1.35;\">How often should trays be cleaned in production?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7;\">Wipe when flux residue or oils accumulate; schedule checks before customer audits. Follow supplier care instructions and your EPA checklist.<\/p>\n<h2 style=\"margin:42px 0 14px;font-size:1.35em;line-height:1.3;\">References<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7;\">\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66912\" rel=\"nofollow noopener\" target=\"_blank\">IEC 61340-5-1<\/a><\/li>\n<li><a href=\"https:\/\/www.esdassociation.org\/standards\/\" rel=\"nofollow noopener\" target=\"_blank\">ANSI\/ESD S20.20<\/a><\/li>\n<li><a href=\"https:\/\/www.esda.org\/glossary.html\" rel=\"nofollow noopener\" target=\"_blank\">ESD Association Glossary<\/a><\/li>\n<li><a href=\"https:\/\/logisticpackaging.com\/product\/standard-assortment\/esd-products\/esd-euro-containers\/esd-st-container-6407\/\" rel=\"nofollow noopener\" target=\"_blank\">Logistic Packaging ESD ST-6407<\/a><\/li>\n<\/ul>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between an ESD tray and an ESD bin for SMT?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Trays emphasize shallow cells and dividers for visible staging beside the line. 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Compare dividers, materials, resistance, sizing, and RFQ tips for global electronics plants today.\", \"keywords\": \"ESD Tray for SMT\", \"inLanguage\": \"en-US\", \"author\": {\"@type\": \"Organization\", \"name\": \"Sanwei\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"Sanwei\", \"url\": \"https:\/\/swesd.com\"}, \"mainEntityOfPage\": {\"@type\": \"WebPage\", \"@id\": \"https:\/\/swesd.com\/blog\/esd-tray-for-smt\/\"}, \"url\": \"https:\/\/swesd.com\/blog\/esd-tray-for-smt\/\", \"image\": \"https:\/\/swesd.com\/wp-content\/uploads\/2026\/07\/esd-tray-for-smt-cover.webp\", \"datePublished\": \"2026-07-11\", \"dateModified\": \"2026-07-10\"}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ESD trays for SMT stage reels and small parts at the line. 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