{"id":13510,"date":"2026-06-24T06:37:14","date_gmt":"2026-06-24T06:37:14","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13510"},"modified":"2026-06-24T06:37:14","modified_gmt":"2026-06-24T06:37:14","slug":"blast-media-equipment-compatibility-guide-pressure-vs-suction-vs-wheel","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/es\/resource\/blog\/blast-media-equipment-compatibility-guide-pressure-vs-suction-vs-wheel\/","title":{"rendered":"Blast Media &amp; Equipment Compatibility Guide: Pressure vs Suction vs Wheel"},"content":{"rendered":"<style>\n.hlh-p{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif;color:#2d3748;line-height:1.78;max-width:900px;margin:0 auto;font-size:1rem}\n.hlh-p *{box-sizing:border-box}\n.hlh-p p{margin:0 0 1.3rem}\n.hlh-p h1{font-size:2.25rem;font-weight:800;color:#1a3456;margin:0 0 1.25rem;line-height:1.25}\n.hlh-p h2{font-size:1.65rem;font-weight:700;color:#1a3456;margin:2.75rem 0 1rem;padding-bottom:.55rem;border-bottom:3px solid #d86e18}\n.hlh-p h3{font-size:1.15rem;font-weight:600;color:#1a3456;margin:1.6rem 0 .5rem}\n.hlh-p ul,.hlh-p ol{margin:0 0 1.25rem;padding-left:1.5rem}\n.hlh-p li{margin:.35rem 0}\n.hlh-p strong{font-weight:600;color:#1a3456}\n.hlh-p a{color:#d86e18;text-decoration:none}\n.hlh-p a:hover{text-decoration:underline;color:#b55c14}\n.hlh-toc{background:#f7f9fc;border:1px solid #dde4ef;border-left:4px solid #d86e18;border-radius:8px;padding:1.4rem 1.75rem;margin:2rem 0}\n.hlh-toc-ttl{font-size:.76rem;text-transform:uppercase;letter-spacing:.09em;color:#7a8aa0;font-weight:700;margin:0 0 .75rem}\n.hlh-toc ol{margin:0;padding-left:1.2rem}\n.hlh-toc li{margin:.3rem 0;font-size:.9rem}\n.hlh-toc a{color:#1a3456;font-weight:500;text-decoration:none}\n.hlh-toc a:hover{color:#d86e18}\n.hlh-callout{background:#eef5ff;border-left:4px solid #3b82f6;border-radius:6px;padding:1rem 1.3rem;margin:1.5rem 0}\n.hlh-callout p{margin:0;font-size:.9rem;color:#1e3a5f;line-height:1.65}\n.hlh-notice{background:#fff8ed;border-left:4px solid #d86e18;border-radius:6px;padding:1rem 1.3rem;margin:1.5rem 0}\n.hlh-notice p{margin:0;font-size:.9rem;color:#7a4a10;line-height:1.65}\n.hlh-eq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.1rem;margin:1.5rem 0}\n.hlh-eq-card{background:#fff;border:1px solid #e5eaf2;border-radius:10px;padding:1.4rem;border-top:4px solid #1a3456}\n.hlh-eq-card.accent{border-top-color:#d86e18}\n.hlh-eq-card h3{font-size:1rem;margin:0 0 .75rem;color:#1a3456}\n.hlh-eq-card ul{margin:0;padding-left:1.15rem;font-size:.83rem;color:#5a6a80}\n.hlh-eq-card li{margin:.3rem 0}\n.hlh-twrap{overflow-x:auto;margin:1.5rem 0;border-radius:8px;border:1px solid #e5eaf2}\n.hlh-tbl{width:100%;border-collapse:collapse;font-size:.83rem;min-width:560px}\n.hlh-tbl thead th{background:#1a3456;color:#fff;padding:.75rem 1rem;text-align:left;font-weight:600;white-space:nowrap}\n.hlh-tbl tbody td{padding:.6rem 1rem;border-bottom:1px solid #eef1f7;color:#2d3748;vertical-align:top}\n.hlh-tbl tbody tr:last-child td{border-bottom:none}\n.hlh-tbl tbody tr:nth-child(even) td{background:#f8fafd}\n.hlh-tbl tbody tr:hover td{background:#edf4ff}\n.hlh-good{color:#15803d;font-weight:600}\n.hlh-fair{color:#b45309;font-weight:600}\n.hlh-bad{color:#dc2626;font-weight:600}\n.hlh-flist{margin:1rem 0}\n.hlh-fitem{border:1px solid #e5eaf2;border-radius:8px;margin:.6rem 0;padding:1rem 1.25rem}\n.hlh-fq{font-weight:600;color:#1a3456;font-size:.93rem;margin:0 0 .5rem}\n.hlh-fa{font-size:.88rem;color:#5a6a80;margin:0;line-height:1.65}\n.hlh-cta{background:linear-gradient(130deg,#1a3456 0%,#2a508a 100%);border-radius:12px;padding:2.5rem 2rem;text-align:center;margin:3rem 0 1rem;color:#fff}\n.hlh-cta h2{color:#fff!important;border:none!important;margin:0 0 .75rem;font-size:1.45rem;padding:0!important}\n.hlh-cta p{color:rgba(255,255,255,.88);margin:0 0 1.5rem;font-size:1rem}\n.hlh-ctabtn{display:inline-block;background:#d86e18;color:#fff!important;padding:.8rem 2.25rem;border-radius:50px;font-weight:700;text-decoration:none!important;font-size:.95rem}\n.hlh-ctabtn:hover{background:#b55c14!important}\n@media(max-width:640px){.hlh-eq-grid{grid-template-columns:1fr}.hlh-cta{padding:1.75rem 1.25rem}}\n<\/style>\n\n<div class=\"hlh-p\">\n<h1>Blast Media &amp; Equipment Compatibility Guide: Pressure vs Suction vs Wheel<\/h1>\n\n<p>Abrasive blast media and blast equipment are not independently interchangeable \u2014 the combination of media type and equipment type determines whether a blasting operation delivers the required surface preparation standard efficiently and economically, or whether it causes equipment damage, produces inconsistent results, and consumes media at two or three times the expected rate. Every abrasive media family has an optimal equipment context: silicon carbide belongs in a pressure blast or suction cabinet, not a centrifugal wheel machine; steel shot belongs in a wheel blast line, not a suction siphon pot. Using the wrong combination does not merely produce sub-optimal results \u2014 it can destroy nozzles, impellers, and liners in days and produce surfaces that fail coating inspection.<\/p>\n\n<p>This guide explains how each of the three principal blast equipment types works, what it is optimized for, and which abrasive media families perform best \u2014 and worst \u2014 in each system. For the full media range overview, see the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-media-supplies\/\" target=\"_blank\" rel=\"noopener\">Abrasive Media Supplies Buyer&#8217;s Guide<\/a>.<\/p>\n\n<div class=\"hlh-toc\">\n  <div class=\"hlh-toc-ttl\">Table of Contents<\/div>\n  <ol>\n    <li><a href=\"#eq-pressure\">Pressure Blast Systems<\/a><\/li>\n    <li><a href=\"#eq-suction\">Suction (Siphon) Blast Systems<\/a><\/li>\n    <li><a href=\"#eq-wheel\">Centrifugal Wheel Blast Machines<\/a><\/li>\n    <li><a href=\"#eq-matrix\">Media\u2013Equipment Compatibility Matrix<\/a><\/li>\n    <li><a href=\"#eq-nozzle\">Nozzle Materials and Media Wear<\/a><\/li>\n    <li><a href=\"#eq-faq\">Preguntas frecuentes<\/a><\/li>\n  <\/ol>\n<\/div>\n\n<h2 id=\"eq-pressure\">Pressure Blast Systems<\/h2>\n<p>A pressure blast system uses a sealed, pressurized vessel (the blast pot) to hold the abrasive media, with compressed air simultaneously pressurizing the pot and flowing through a metering valve that combines air and media into the blast stream. The media-air mixture travels through the blast hose at high velocity to the nozzle, where it exits at particle velocities of 100\u2013250 m\/s depending on particle density, size, and air pressure. The operator controls the nozzle, directing the blast stream manually or through automated equipment.<\/p>\n\n<h3>Key Characteristics<\/h3>\n<ul>\n  <li><strong>Operating pressure:<\/strong> Typically 60\u2013120 psi at the nozzle, adjustable from the compressor and regulator<\/li>\n  <li><strong>Throughput:<\/strong> Moderate to high; depends on nozzle size (#4 through #8) and media feed rate<\/li>\n  <li><strong>Mobility:<\/strong> Fully portable \u2014 the blast pot can be taken to the work rather than moving the work to the equipment. Essential for field operations, large structures, and on-site maintenance<\/li>\n  <li><strong>Media compatibility:<\/strong> Broadest of all equipment types \u2014 handles mineral abrasives (garnet, copper slag, aluminum oxide, silicon carbide), metallic (steel shot and grit at moderate rates), organic media (walnut shell, plastic grit), and glass beads<\/li>\n  <li><strong>Media consumption:<\/strong> Higher than wheel blast systems because a significant proportion of kinetic energy is provided by compressed air rather than by the media mass. Requires efficient separator if media is to be recycled<\/li>\n<\/ul>\n\n<div class=\"hlh-eq-grid\">\n  <div class=\"hlh-eq-card\">\n    <h3>Pressure Blast \u2014 Best Media<\/h3>\n    <ul>\n      <li>Garnet #30\/60 (field blast, pipeline, marine)<\/li>\n      <li>Steel Grit GL 25\u2013GL 40 (structural steel, Sa 3)<\/li>\n      <li>Aluminum Oxide F 36\u2013F 80 (precision prep, thermal spray)<\/li>\n      <li>Copper Slag coarse (large-area single-use)<\/li>\n      <li>Silicon Carbide F 60\u2013F 120 (glass etching, stone)<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"hlh-eq-card accent\">\n    <h3>Pressure Blast \u2014 Avoid<\/h3>\n    <ul>\n      <li>Steel Shot in large sizes \u2014 high nozzle and hose wear<\/li>\n      <li>Very fine powder media (below F 150) \u2014 clogs metering valve<\/li>\n      <li>Wet or clumped media \u2014 blocks the blast pot bottom valve<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h2 id=\"eq-suction\">Suction (Siphon) Blast Systems<\/h2>\n<p>A suction (siphon) blast system uses compressed air passing through a venturi nozzle inside a blast gun or cabinet to create a low-pressure zone that draws media up from a hopper through a siphon tube. The media is mixed with the air stream at the gun and exits through the nozzle at lower velocity than in a pressure system \u2014 typically 60\u2013130 m\/s, roughly 30\u201340% lower than equivalent pressure blast at the same air pressure. The lower velocity limits the achievable surface profile depth and cut rate, but makes suction blasting well-suited to controlled-precision applications in enclosed blast cabinets.<\/p>\n\n<h3>Key Characteristics<\/h3>\n<ul>\n  <li><strong>Operating pressure:<\/strong> Typically 40\u201390 psi<\/li>\n  <li><strong>Throughput:<\/strong> Lower than pressure blast; suited to smaller workpieces and controlled-finish applications<\/li>\n  <li><strong>Mobility:<\/strong> Generally fixed cabinet systems; not field-portable<\/li>\n  <li><strong>Media compatibility:<\/strong> Broad, but limited to media that can be siphoned (flows freely through the pick-up tube) \u2014 very fine powders and very coarse granules can cause flow problems<\/li>\n  <li><strong>Best use:<\/strong> Cabinet blast rooms for precision aerospace components, automotive parts, medical instruments, glass etching cabinets, lapidary media application<\/li>\n<\/ul>\n\n<div class=\"hlh-eq-grid\">\n  <div class=\"hlh-eq-card\">\n    <h3>Suction Cabinet \u2014 Best Media<\/h3>\n    <ul>\n      <li>Glass Beads Class A\u2013C (peening, aerospace, medical)<\/li>\n      <li>Aluminum Oxide F 60\u2013F 180 (precision surface prep)<\/li>\n      <li>Silicon Carbide F 60\u2013F 220 (glass etching, sandcarving)<\/li>\n      <li>Plastic Grit 20\u201360 grit (aerospace MRO, automotive)<\/li>\n      <li>Walnut Shell 20\/40 mesh (delicate cleaning)<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"hlh-eq-card accent\">\n    <h3>Suction Cabinet \u2014 Avoid<\/h3>\n    <ul>\n      <li>Coarse metallic media (S-330+ steel shot) \u2014 too heavy to siphon efficiently<\/li>\n      <li>Very fine fume-grade powders (below F 280) \u2014 airborne dust problems<\/li>\n      <li>Wet or humid media \u2014 blocks siphon tube<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h2 id=\"eq-wheel\">Centrifugal Wheel Blast Machines<\/h2>\n<p>Centrifugal wheel blast machines accelerate abrasive media using a high-speed spinning impeller wheel rather than compressed air. Media fed into the center of the wheel is picked up by impeller blades rotating at 1,200\u20133,600 RPM and thrown outward at high velocity \u2014 typically 60\u201380 m\/s. This produces a controlled, fan-shaped blast pattern that sweeps across the workpiece surface as it travels through the machine on a conveyor, hanger system, or tumble drum. Because the energy comes from the wheel motor rather than compressed air, wheel blasting is significantly more energy-efficient per square meter blasted than air-powered systems \u2014 consuming approximately 1\u20133 kWh\/m\u00b2 vs 5\u201310 kWh\/m\u00b2 for pressure blast at comparable throughput.<\/p>\n\n<h3>Key Characteristics<\/h3>\n<ul>\n  <li><strong>Throughput:<\/strong> Highest of all blast equipment types; production rates of 50\u2013500+ m\u00b2\/hour on continuous conveyor lines<\/li>\n  <li><strong>Media compatibility:<\/strong> Highly constrained \u2014 designed and optimized for metallic media (steel shot S-110 to S-780, steel grit GL 16 to GL 120). Light, angular mineral abrasives are not suitable<\/li>\n  <li><strong>Media consumption:<\/strong> Lowest of all systems due to the efficient closed-loop reclaim and separation system integral to wheel blast machine design<\/li>\n  <li><strong>Workpiece limitations:<\/strong> Workpiece must fit through the machine envelope and be robust enough to handle the automated handling system (conveyor, hooks, or tumble drum)<\/li>\n  <li><strong>Best use:<\/strong> High-volume structural steel fabrication, automotive parts cleaning, foundry casting cleaning, pipe and tube blast cleaning<\/li>\n<\/ul>\n\n<div class=\"hlh-eq-grid\">\n  <div class=\"hlh-eq-card\">\n    <h3>Wheel Blast \u2014 Best Media<\/h3>\n    <ul>\n      <li>Steel Shot S-110 to S-780 (standard wheel blast)<\/li>\n      <li>Steel Grit GL 16 to GL 80 (aggressive profiling)<\/li>\n      <li>Steel Shot + Grit blends 70:30 to 50:50 (intermediate profile)<\/li>\n      <li>Cast iron shot\/grit (specialized foundry applications)<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"hlh-eq-card accent\">\n    <h3>Wheel Blast \u2014 Avoid<\/h3>\n    <ul>\n      <li>Garnet, copper slag, Al\u2082O\u2083 \u2014 rapid impeller and liner wear<\/li>\n      <li>Glass beads \u2014 too light for efficient wheel acceleration<\/li>\n      <li>Plastic or organic media \u2014 cannot withstand wheel impact<\/li>\n      <li>Any media below SG 4.0 g\/cm\u00b3 \u2014 insufficient centrifugal force<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<div class=\"hlh-notice\">\n  <p><strong>Why mineral abrasives damage wheel blast machines:<\/strong> Impeller blades and liners in wheel blast machines are designed to withstand the repeated impact of dense metallic media (SG 7.8 g\/cm\u00b3). Lighter mineral abrasives (SG 2.5\u20134.1 g\/cm\u00b3) require higher rotational speed to achieve equivalent particle velocity, increasing centrifugal stress on the impeller assembly. More importantly, the angular mineral particles create abrasive wear on the impeller and paddle surfaces that metallic media \u2014 which rounds and smooths with use rather than cutting \u2014 does not. Running garnet or aluminum oxide in a wheel blast machine can destroy the impeller in as little as 20\u201340 operating hours, compared to thousands of hours with correctly specified metallic media.<\/p>\n<\/div>\n\n<h2 id=\"eq-matrix\">Media\u2013Equipment Compatibility Matrix<\/h2>\n\n<div class=\"hlh-twrap\">\n  <table class=\"hlh-tbl\">\n    <thead>\n      <tr><th>Tipo de medio<\/th><th>Pressure Blast<\/th><th>Suction Cabinet<\/th><th>Wheel Blast<\/th><th>Notes<\/th><\/tr>\n    <\/thead>\n    <tbody>\n      <tr><td>Steel Shot (S-110 to S-780)<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-fair\">Limited (coarser sizes only)<\/td><td class=\"hlh-good\">Optimal<\/td><td>Primary wheel blast media; pressure blast viable for smaller sizes<\/td><\/tr>\n      <tr><td>Steel Grit (GL 16 to GL 120)<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-fair\">Limited<\/td><td class=\"hlh-good\">Bien<\/td><td>Wheel blast accelerates liner wear vs shot; pressure blast preferred for field use<\/td><\/tr>\n      <tr><td>Garnet #30\/60<\/td><td class=\"hlh-good\">Optimal<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Destroys wheel blast impeller; excellent in pressure blast field operations<\/td><\/tr>\n      <tr><td>Aluminum Oxide F 36\u2013F 120<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-good\">Optimal<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Cabinet blast standard; pressure blast suitable for larger grit sizes<\/td><\/tr>\n      <tr><td>Silicon Carbide F 46\u2013F 220<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-good\">Optimal<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Glass etching and stone: suction cabinet; stone\/ceramic: pressure blast<\/td><\/tr>\n      <tr><td>Glass Beads Class A\u2013D<\/td><td class=\"hlh-fair\">Fair (low vel.)<\/td><td class=\"hlh-good\">Optimal<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Suction cabinet is standard; pressure blast possible at low pressure (&lt;60 psi)<\/td><\/tr>\n      <tr><td>Copper Slag coarse\/medium<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-fair\">Fair<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Pressure blast only; high dust \u2014 requires containment and filtration<\/td><\/tr>\n      <tr><td>Plastic Grit 14\u201360 grit<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Both pressure and suction cabinet viable; low density requires pressure adjustment<\/td><\/tr>\n      <tr><td>Walnut Shell 6\/10\u201320\/40<\/td><td class=\"hlh-fair\">Fair<\/td><td class=\"hlh-good\">Bien<\/td><td class=\"hlh-bad\">Avoid<\/td><td>Suction cabinet preferred for controlled delicate cleaning<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2 id=\"eq-nozzle\">Nozzle Materials and Media Wear<\/h2>\n<p>Nozzle selection is a secondary equipment-media interaction that significantly affects operating cost. The nozzle bore widens as it wears \u2014 reducing blast velocity, increasing air consumption, and eventually producing an irregular blast pattern that causes surface inconsistency. The rate of nozzle wear is determined by the abrasive hardness and the nozzle material:<\/p>\n\n<div class=\"hlh-twrap\">\n  <table class=\"hlh-tbl\">\n    <thead>\n      <tr><th>Nozzle Material<\/th><th>Relative Life vs Garnet<\/th><th>Best Media Match<\/th><th>Notes<\/th><\/tr>\n    <\/thead>\n    <tbody>\n      <tr><td>Ceramic (alumina)<\/td><td>1\u00d7 (baseline)<\/td><td>Low-abrasion media only<\/td><td>Shortest life; not suitable for hard abrasives<\/td><\/tr>\n      <tr><td>Cast iron<\/td><td>0.5\u00d7<\/td><td>Low-pressure soft media<\/td><td>Very short life; rarely used in industrial blasting<\/td><\/tr>\n      <tr><td>Tungsten carbide<\/td><td>5\u201310\u00d7<\/td><td>Garnet, copper slag, glass beads, Al\u2082O\u2083<\/td><td>Standard industrial nozzle; best cost-life balance for most applications<\/td><\/tr>\n      <tr><td>Boron carbide<\/td><td>25\u201335\u00d7<\/td><td>All media types including SiC and steel<\/td><td>Longest life; higher unit cost offset by dramatically lower replacement frequency<\/td><\/tr>\n      <tr><td>Carburo de silicio<\/td><td>3\u20135\u00d7<\/td><td>Low to medium hardness media<\/td><td>Not suitable for SiC media (same hardness as nozzle)<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<p>For high-volume pressure blast operations with hard abrasives (Al\u2082O\u2083 or SiC), the higher cost of boron carbide nozzles is recovered in fewer nozzle changes, reduced downtime, and consistent surface quality throughout the nozzle service life. For moderate-volume field operations with garnet or copper slag, tungsten carbide nozzles provide the best cost-performance balance.<\/p>\n\n<h2 id=\"eq-faq\">Preguntas frecuentes<\/h2>\n<div class=\"hlh-flist\">\n\n  <div class=\"hlh-fitem\">\n    <div class=\"hlh-fq\">Can I run garnet in my wheel blast machine if I run it at lower wheel speed?<\/div>\n    <p class=\"hlh-fa\">Running garnet or other mineral abrasives in a centrifugal wheel blast machine at reduced wheel speed does not eliminate the damage risk \u2014 it merely slows it. The fundamental problem is not the kinetic energy of the garnet particles on the workpiece surface; it is the abrasive cutting wear those angular particles inflict on the wheel impeller blades, paddles, and liners as they are accelerated from rest to exit velocity inside the machine. The impeller materials are not designed to tolerate the sustained abrasion of hard mineral particles, regardless of wheel speed. If your application requires garnet, a pressure blast system is the correct equipment choice. If you must use a wheel blast machine, use steel shot or grit \u2014 the media the machine is engineered for.<\/p>\n  <\/div>\n\n  <div class=\"hlh-fitem\">\n    <div class=\"hlh-fq\">What is the maximum steel shot size I can use in a suction blast cabinet?<\/div>\n    <p class=\"hlh-fa\">The practical upper limit for steel shot in a suction blast cabinet is around S-170 to S-230 (0.43\u20130.60 mm diameter). Above this size, the shot particles become too heavy for the siphon airflow to consistently lift and transport through the pick-up tube and blast hose \u2014 resulting in erratic, low-density blast patterns and poor surface coverage uniformity. For most suction cabinet applications requiring metallic media (peening or surface preparation of small components), S-110 to S-170 shot is the effective range. For larger shot sizes (S-330 and above), a pressure blast system is required to generate sufficient air velocity to transport the heavier particles.<\/p>\n  <\/div>\n\n  <div class=\"hlh-fitem\">\n    <div class=\"hlh-fq\">How do I know when it&#8217;s time to replace the blast nozzle?<\/div>\n    <p class=\"hlh-fa\">The primary indicator is nozzle bore diameter measurement. Use a nozzle bore gauge (bore caliper) to measure the orifice diameter periodically \u2014 typically every 4\u20138 hours of operation for hard abrasives, every 20\u201330 hours for softer media. As a general rule, replace the nozzle when the bore diameter has expanded by 1.5\u20132 mm beyond the new nozzle specification, or when you observe: increased air consumption at the same operating pressure, decreased blast velocity (audible as a lower-pitched impact sound on the surface), irregular blast pattern or oval instead of round blast footprint, or measurably reduced surface profile depth at the same operating parameters. Delaying nozzle replacement costs more in wasted compressed air and inconsistent surface preparation than the nozzle itself is worth.<\/p>\n  <\/div>\n\n<\/div>\n\n<div class=\"hlh-cta\">\n  <h2>Get the Right Media for Your Equipment<\/h2>\n  <p>Tell Henglihong your equipment type, current media, and surface specification. Our technical team will confirm the optimal media grade and grit size for your blast system \u2014 before you order.<\/p>\n  <a href=\"https:\/\/hlh-js.com\/contact\/\" class=\"hlh-ctabtn\" target=\"_blank\" rel=\"noopener\">Request a Free Technical Recommendation<\/a>\n<\/div>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Blast Media &amp; Equipment Compatibility Guide: Pressure vs Suction vs  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13512,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,177,138],"tags":[],"class_list":["post-13510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-material","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/comments?post=13510"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13510\/revisions"}],"predecessor-version":[{"id":13513,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13510\/revisions\/13513"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media\/13512"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media?parent=13510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/categories?post=13510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/tags?post=13510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}