{"id":20758,"date":"2026-06-23T05:14:56","date_gmt":"2026-06-23T02:14:56","guid":{"rendered":"https:\/\/setmakina.com\/?p=20758"},"modified":"2026-06-23T05:14:59","modified_gmt":"2026-06-23T02:14:59","slug":"atex-pneumatic-motor-hazardous-environment","status":"publish","type":"post","link":"https:\/\/setmakina.com\/en\/technical-insights\/atex-pneumatic-motor-hazardous-environment\/","title":{"rendered":"ATEX Pneumatic Motors for Hazardous Environments: Underground, Surface, and Normal Use Explained"},"content":{"rendered":"\n<!--\n=================================================================\n  SET MAKINA \u2014 Pneumatic Motor Blog Post P2\n  ATEX Pneumatic Motors for Hazardous Environments:\n  Underground, Surface, and Normal Use Explained\n\n=================================================================\n  YOAST FIELDS \u2014 PASTE INTO WORDPRESS BEFORE PUBLISHING\n  \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n  Post title (H1 \/ WP title field):\n    ATEX Pneumatic Motors for Hazardous Environments:\n    Underground, Surface, and Normal Use Explained\n\n  Focus keyphrase:\n    ATEX pneumatic motor hazardous environment\n\n  SEO title (60 chars):\n    ATEX Pneumatic Motors: Underground vs Surface vs Normal | Set Makina\n\n  Meta description (150 chars):\n    Understand the three ATEX variants for pneumatic motors,\n    which zones require certification, grounding rules, and how\n    Set Makina's ZM and EP motors comply.\n\n  URL slug:\n    atex-pneumatic-motor-hazardous-environment\n\n  Featured image alt text:\n    ATEX pneumatic motor for hazardous environment \u2014 ZM80\n    underground certified vane motor by Set Makina\n\n  Related keyphrases (Yoast Premium \u2014 add all 3):\n    1. ATEX explosion proof air motor\n    2. underground mining pneumatic motor certification\n    3. pneumatic motor hazardous area zone classification\n\n  Schema (Yoast \u2192 Schema tab):\n    Page type: Article\n    Article type: TechArticle\n\n  Category: Expert Technical Views\n  Cornerstone content: OFF\n=================================================================\n-->\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Open+Sans:wght@400;600;700&#038;display=swap\" rel=\"stylesheet\">\n\n<style>\n  .sm-post *, .sm-post *::before, .sm-post *::after { box-sizing: border-box; }\n  .sm-post {\n    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;\n    font-size: 16px; line-height: 1.8; color: #2d2d2d;\n    max-width: 860px; margin: 0 auto;\n  }\n\n  \/* Lead *\/\n  .sm-post .sm-lead {\n    font-size: 17px; line-height: 1.8; color: #2d2d2d;\n    background: #f4f8fc; border-left: 4px solid #468dcb;\n    padding: 20px 24px; 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color: #fff;\n  }\n  .sm-post .sm-ground-body {\n    padding: 20px 24px; background: #fff;\n    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;\n  }\n  .sm-post .sm-ground-col h4 {\n    font-size: 14px; font-weight: 700; color: #1a3a5c;\n    margin: 0 0 10px; padding-bottom: 8px; border-bottom: 2px solid #e4e8ed;\n  }\n  .sm-post .sm-ground-col ul { margin: 0; padding: 0; list-style: none; }\n  .sm-post .sm-ground-col li {\n    font-size: 13px; color: #444; padding: 5px 0;\n    border-bottom: 1px solid #f5f5f5; margin: 0; line-height: 1.5;\n  }\n  .sm-post .sm-ground-col li:last-child { border-bottom: none; }\n  .sm-post .sm-ground-col li::before { content: \"\u2192 \"; color: #c0392b; font-weight: 700; }\n\n  \/* Product cards *\/\n  .sm-post .sm-product-grid {\n    display: grid; grid-template-columns: 1fr 1fr;\n    gap: 16px; margin: 28px 0;\n  }\n  .sm-post .sm-product-card {\n    border: 1px solid #e4e8ed; border-radius: 6px; padding: 20px;\n    display: flex; flex-direction: column; 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margin: 56px 0 36px; text-align: center;\n  }\n  .sm-post .sm-cta h3 { font-size: 22px; font-weight: 700; color: #fff; margin: 0 0 10px; }\n  .sm-post .sm-cta p { color: rgba(255,255,255,0.72); font-size: 15px; margin: 0 auto 28px; max-width: 500px; line-height: 1.7; }\n  .sm-post .sm-cta a {\n    display: inline-block; background: #FF6600; color: #fff !important;\n    font-weight: 700; font-size: 15px; padding: 14px 36px;\n    border-radius: 4px; text-decoration: none !important; border: none !important;\n    transition: background 0.2s, transform 0.15s;\n  }\n  .sm-post .sm-cta a:hover { background: #e55a00; transform: translateY(-1px); }\n\n  \/* Footer *\/\n  .sm-post .sm-footer-meta {\n    border-top: 2px solid #e4e8ed; padding-top: 24px; margin-top: 40px;\n    display: flex; align-items: center; flex-wrap: wrap;\n    gap: 10px; font-size: 13px; color: #888;\n  }\n  .sm-post .sm-footer-meta .sm-author { font-weight: 600; color: #444; }\n  .sm-post .sm-cert {\n    display: inline-flex; align-items: center; gap: 5px;\n    background: #f4f8fc; border: 1px solid #cddaeb;\n    padding: 4px 10px; border-radius: 20px;\n    font-size: 12px; font-weight: 600; color: #1a3a5c;\n  }\n\n  \/* Related *\/\n  .sm-post .sm-related {\n    background: #f4f8fc; border: 1px solid #cddaeb;\n    border-radius: 6px; padding: 24px 28px; margin-top: 36px;\n  }\n  .sm-post .sm-related .sm-related-title {\n    font-size: 11px; font-weight: 700; letter-spacing: 1.4px;\n    text-transform: uppercase; color: #468dcb; margin: 0 0 14px;\n  }\n  .sm-post .sm-related ul {\n    margin: 0; padding: 0; list-style: none;\n    display: grid; grid-template-columns: 1fr 1fr; gap: 6px 24px;\n  }\n  .sm-post .sm-related li { margin: 0; font-size: 14px; padding: 4px 0; }\n  .sm-post .sm-related li::before { content: \"\u2192 \"; color: #FF6600; font-weight: 700; }\n  .sm-post .sm-related li a { color: #1a3a5c !important; font-weight: 600; border-bottom: none !important; }\n  .sm-post .sm-related li a:hover { color: #468dcb !important; }\n\n  .sm-post .sm-disclaimer {\n    font-size: 12px; color: #aaa; line-height: 1.6;\n    padding: 16px 0 0; border-top: 1px solid #eee; margin-top: 32px;\n  }\n\n  @media (max-width: 680px) {\n    .sm-post h2 { font-size: 19px; }\n    .sm-post .sm-variant-grid { grid-template-columns: 1fr; }\n    .sm-post .sm-product-grid { grid-template-columns: 1fr; }\n    .sm-post .sm-ground-body { grid-template-columns: 1fr; }\n    .sm-post .sm-related ul { grid-template-columns: 1fr; }\n    .sm-post .sm-cta { padding: 32px 24px; }\n    .sm-post .sm-steps > li { flex-direction: column; gap: 10px; }\n  }\n<\/style>\n\n<article class=\"sm-post\">\n\n  <!-- LEAD -->\n  <p class=\"sm-lead\">\n    When an ATEX pneumatic motor is required for a hazardous environment, the wrong certification choice carries serious legal, safety, and financial consequences. Set Makina manufactures both vane type and axial piston pneumatic motors in three distinct certification variants \u2014 Underground ATEX, Surface ATEX, and Normal Use \u2014 and each must be specified correctly at the time of order. This guide explains exactly what ATEX certification means for pneumatic motors, which variant applies to which environment, and what the mandatory installation requirements are for each.\n  <\/p>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 01 \u2014 What ATEX means \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">01<\/span>What ATEX certification means for pneumatic motors<\/h2>\n\n  <p>\n    ATEX is the European regulatory framework governing equipment and protective systems for use in potentially explosive atmospheres. The name derives from the French <em>ATmosph\u00e8res EXplosibles<\/em>. Under <a href=\"https:\/\/eur-lex.europa.eu\/legal-content\/EN\/TXT\/?uri=CELEX:32014L0034\" target=\"_blank\" rel=\"noopener noreferrer\">EU Directive 2014\/34\/EU<\/a> \u2014 the ATEX Equipment Directive \u2014 any equipment intended for use in a classified hazardous zone must carry the appropriate ATEX certification before it is placed on the market or put into service. This is a legal requirement, not a recommendation, across all EU member states and many international markets that follow equivalent standards.\n  <\/p>\n\n  <p>\n    For pneumatic motors specifically, ATEX certification addresses the risk of the motor becoming an ignition source in an atmosphere containing flammable gases, vapours, mists, or dusts. Electric motors carry obvious ignition risks through sparks, brush contact, and motor winding heat. Pneumatic motors eliminate these risks by design \u2014 they have no electrical components, no brushes, and no windings. However, they can still generate static electricity through moving parts, and their exhaust heat can, in certain conditions, provide an ignition source if the motor is not correctly specified, grounded, and maintained.\n  <\/p>\n\n  <div class=\"sm-callout\">\n    <p><strong>Key principle:<\/strong> ATEX certification for a pneumatic motor is not simply about eliminating sparks \u2014 it also covers electrostatic charge control, surface temperature classification, and the mechanical integrity requirements that prevent the motor itself from becoming an ignition source under fault conditions.<\/p>\n  <\/div>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 02 \u2014 The three variants \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">02<\/span>The three certification variants \u2014 and when each applies<\/h2>\n\n  <p>\n    Set Makina&#8217;s pneumatic motors are available in three variants. The correct variant must be specified at the time of order, as each is manufactured to different requirements. Retrofitting a Normal Use motor to an ATEX environment after purchase is not permissible under the directive.\n  <\/p>\n\n  <div class=\"sm-variant-grid\">\n    <div class=\"sm-variant-card underground\">\n      <div class=\"sm-vtag\">Variant 1<\/div>\n      <h4>Underground ATEX Certified<\/h4>\n      <p>For use in underground mining environments where methane (firedamp) or other explosive gases may accumulate. Covers coal mines, hard rock mines with hydrocarbon-bearing strata, and any subterranean work where the methane risk is classified.<\/p>\n      <span class=\"sm-vrequired\">Mandatory underground<\/span>\n    <\/div>\n    <div class=\"sm-variant-card surface\">\n      <div class=\"sm-vtag\">Variant 2<\/div>\n      <h4>Surface ATEX Certified<\/h4>\n      <p>For use in surface or above-ground locations classified as explosive atmosphere zones \u2014 petrochemical plants, refineries, paint booths, grain handling facilities, and surface quarry processing areas where flammable vapours or dusts are present.<\/p>\n      <span class=\"sm-vrequired\">Mandatory in ATEX zones<\/span>\n    <\/div>\n    <div class=\"sm-variant-card normal\">\n      <div class=\"sm-vtag\">Variant 3<\/div>\n      <h4>Normal Use<\/h4>\n      <p>For standard industrial environments with no classified explosive atmosphere risk. Suitable for manufacturing plants, construction sites, agricultural machinery, and general industrial applications where ATEX classification is not required by regulation.<\/p>\n      <span class=\"sm-vrequired\">Non-hazardous zones only<\/span>\n    <\/div>\n  <\/div>\n\n  <p>\n    It is important to note that Surface ATEX certification does not permit use underground, and Underground ATEX certification \u2014 while it meets a higher standard \u2014 should still be matched to the specific zone classification of the installation. In practice, if there is any doubt about the correct variant for a given site, the ATEX zone classification should be confirmed with the site&#8217;s safety officer or a qualified ATEX assessor before ordering.\n  <\/p>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 03 \u2014 Zone classification \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">03<\/span>ATEX zone classifications and which motor variant applies<\/h2>\n\n  <p>\n    The ATEX directive defines hazardous area zones based on the frequency and duration of the presence of an explosive atmosphere. Understanding the zone classification of your installation determines which motor variant is legally required.\n  <\/p>\n\n  <div class=\"sm-table-wrap\">\n    <table>\n      <thead>\n        <tr>\n          <th>Zone<\/th>\n          <th>Environment type<\/th>\n          <th>Explosive atmosphere frequency<\/th>\n          <th>Required motor variant<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr>\n          <td>Zone 0<\/td>\n          <td>Gas \/ vapour \u2014 surface<\/td>\n          <td>Continuously or long periods present<\/td>\n          <td><span class=\"sm-badge sm-badge-orange\">Surface ATEX \u2014 Category 1G<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Zone 1<\/td>\n          <td>Gas \/ vapour \u2014 surface<\/td>\n          <td>Likely during normal operation<\/td>\n          <td><span class=\"sm-badge sm-badge-orange\">Surface ATEX \u2014 Category 2G<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Zone 2<\/td>\n          <td>Gas \/ vapour \u2014 surface<\/td>\n          <td>Not likely in normal operation; if present, only briefly<\/td>\n          <td><span class=\"sm-badge sm-badge-green\">Surface ATEX \u2014 Category 3G<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Zone 20<\/td>\n          <td>Dust \u2014 surface<\/td>\n          <td>Continuously or long periods present<\/td>\n          <td><span class=\"sm-badge sm-badge-orange\">Surface ATEX \u2014 Category 1D<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Zone 21<\/td>\n          <td>Dust \u2014 surface<\/td>\n          <td>Likely during normal operation<\/td>\n          <td><span class=\"sm-badge sm-badge-orange\">Surface ATEX \u2014 Category 2D<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Zone 22<\/td>\n          <td>Dust \u2014 surface<\/td>\n          <td>Not likely in normal operation; if present, only briefly<\/td>\n          <td><span class=\"sm-badge sm-badge-green\">Surface ATEX \u2014 Category 3D<\/span><\/td>\n        <\/tr>\n        <tr>\n          <td>Underground<\/td>\n          <td>Gas (methane) \u2014 subterranean<\/td>\n          <td>Potential presence in any mining heading<\/td>\n          <td><span class=\"sm-badge sm-badge-red\">Underground ATEX \u2014 mandatory<\/span><\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <div class=\"sm-callout-warn sm-callout\">\n    <p><strong>Important:<\/strong> Zone classification is a site-specific determination made by a qualified ATEX assessor \u2014 it is not a decision for equipment suppliers or procurement managers to make unilaterally. Always obtain the zone classification document from the site safety officer before specifying equipment.<\/p>\n  <\/div>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 04 \u2014 Mandatory installation requirements \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">04<\/span>Mandatory installation requirements for ATEX pneumatic motors<\/h2>\n\n  <p>\n    Purchasing the correct ATEX motor variant is only the first step. The installation, commissioning, and ongoing operation of an ATEX pneumatic motor in a hazardous environment must also comply with specific requirements drawn directly from Set Makina&#8217;s motor manuals and the ATEX directive. Failure to meet these requirements can invalidate the ATEX certification and expose operators to regulatory liability.\n  <\/p>\n\n  <ul class=\"sm-steps\">\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Grounding \u2014 mandatory in all ATEX environments<\/div>\n        <p class=\"sm-step-text\">A grounding connection is mandatory for any ATEX motor installation \u2014 both underground and surface variants. The grounding cable must be connected to a bolt on the rear or front of the motor housing, using a bolt that is not already used for mechanical mounting. Before connecting, the paint must be cleaned from the contact surface to ensure electrical continuity between the cable and the bare metal of the motor body.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Grounding cable specification \u2014 minimum 6 mm single-core copper<\/div>\n        <p class=\"sm-step-text\">The grounding cable must be a single-core, insulated copper cable with a minimum cross-sectional area of 6 mm\u00b2. This is the minimum specification required to provide reliable static electricity dissipation under the motor&#8217;s normal operating conditions. Smaller cables or multi-stranded cables that do not meet this specification are not acceptable for ATEX installation.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Anti-static paint integrity \u2014 inspect and maintain<\/div>\n        <p class=\"sm-step-text\">ATEX-certified motors are protected with anti-static paint as a fundamental part of the certification. If the motor&#8217;s paint surface is chipped, scratched, or otherwise damaged during installation or operation \u2014 exposing bare metal \u2014 the affected area must be repainted locally as soon as possible using the correct anti-static paint specification. Operating with exposed bare metal in an ATEX environment can invalidate the motor&#8217;s certification.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Air hose specification \u2014 minimum \u00bd&#8221; Mantex Layflat at 20 bar rating<\/div>\n        <p class=\"sm-step-text\">All air supply connections for ATEX motors must use hose with a minimum internal diameter of \u00bd&#8221; (12.7 mm), rated to at least 20 bar pressure. Mantex Layflat hose or equivalent meeting this specification is required. Undersized or pressure-inadequate hose is a safety risk in ATEX environments and is not compliant with the installation requirements.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Underground startup procedure \u2014 purge at 10% speed first<\/div>\n        <p class=\"sm-step-text\">In underground environments specifically, before starting the motor at full or working speed, it must first be run at approximately 10% speed to purge any accumulated gases from the immediate motor environment. If the methane concentration in the atmosphere exceeds 10%, the motor must not be started at all. Operators must observe all site warning signals and atmospheric monitoring alarms before commissioning the motor in each shift.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-step-title\">Continuous lubrication \u2014 do not run without oil in the lubricator<\/div>\n        <p class=\"sm-step-text\">The lubricator at the motor&#8217;s air inlet must always contain oil before operation. The motor must not be started if the lubricator is empty. Lubrication failure not only damages the motor but also risks increased internal friction heat \u2014 which could potentially compromise the motor&#8217;s surface temperature classification (T-class) in an ATEX environment. Check lubricator oil level at the start of every shift.<\/p>\n      <\/div>\n    <\/li>\n  <\/ul>\n\n  <!-- Grounding specification summary box -->\n  <div class=\"sm-ground-box\">\n    <div class=\"sm-ground-header\">\n      <div class=\"sm-gh-label\">ATEX Grounding \u2014 Technical Summary<\/div>\n      <div class=\"sm-gh-title\">Mandatory grounding specification for all ATEX motor installations<\/div>\n    <\/div>\n    <div class=\"sm-ground-body\">\n      <div class=\"sm-ground-col\">\n        <h4>Cable specification<\/h4>\n        <ul>\n          <li>Minimum 6 mm\u00b2 cross-sectional area<\/li>\n          <li>Single-core construction (not multi-strand)<\/li>\n          <li>Insulated outer sheath<\/li>\n          <li>Copper conductor \u2014 not aluminium<\/li>\n          <li>Length: sufficient to reach earth rod or panel ground<\/li>\n        <\/ul>\n      <\/div>\n      <div class=\"sm-ground-col\">\n        <h4>Connection procedure<\/h4>\n        <ul>\n          <li>Use a dedicated grounding bolt \u2014 not a mounting bolt<\/li>\n          <li>Remove paint from contact surface before connecting<\/li>\n          <li>Verify electrical continuity after connection<\/li>\n          <li>Use copper earth rod driven to adequate depth, or connect to panel earthing bar<\/li>\n          <li>Re-verify continuity after any maintenance activity<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n  <\/div>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 05 \u2014 Why pneumatic over electric in ATEX \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">05<\/span>Why pneumatic motors are preferred in ATEX environments<\/h2>\n\n  <p>\n    Understanding why pneumatic motors are often the preferred choice over electric motors in hazardous environments helps clarify the engineering logic behind ATEX motor selection. The advantage is not simply that pneumatic motors can be certified \u2014 it is that they are structurally better suited to these environments by design.\n  <\/p>\n\n  <p>\n    Electric motors in ATEX environments require expensive explosion-proof enclosures, certified cable glands, and complex earthing arrangements. Furthermore, electric motors generate heat in their windings under load \u2014 and maintaining the required T-class surface temperature under all load conditions requires careful thermal engineering and monitoring. By contrast, a pneumatic motor contains no electrical components whatsoever. There are no windings, no brushes, no commutators, and no power electronics. As a result, the primary ignition sources that make ATEX certification of electric motors so costly and complex simply do not exist in a pneumatic motor.\n  <\/p>\n\n  <p>\n    Additionally, pneumatic motors are inherently overload-safe \u2014 they stall without damage rather than overheating when blocked or overloaded. This means that a fault condition which would cause an electric motor to overheat and potentially reach ignition temperatures results in nothing more than a stopped shaft in a pneumatic motor. Consequently, the total cost of ATEX compliance for a pneumatic motor installation \u2014 including the certified motor, correct hose, grounding hardware, and installation labour \u2014 is typically significantly lower than an equivalent ATEX electric motor installation.\n  <\/p>\n\n  <div class=\"sm-callout-tip sm-callout\">\n    <p><strong>Cost of compliance:<\/strong> For most quarrying and underground mining applications, an ATEX-certified Set Makina vane motor paired with the correct hose and grounding cable delivers full regulatory compliance at a fraction of the cost and installation complexity of an equivalent ATEX electric drive system.<\/p>\n  <\/div>\n\n\n  <!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 06 \u2014 Products \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n  <h2><span class=\"sm-num\">06<\/span>Set Makina ATEX pneumatic motors \u2014 available for all environments<\/h2>\n\n  <p>\n    Both the vane type (ZM \/ STRC) and axial piston (EP) motor families are available in all three certification variants. The variant must be specified at order \u2014 Underground ATEX, Surface ATEX, or Normal Use. Set Makina is the sole authorized service provider for all motors and provides technical documentation supporting ATEX compliance on request.\n  <\/p>\n\n  <p>\n    As this post is part of Set Makina&#8217;s pneumatic motor content series, for a full technical comparison of the vane type and axial piston motor families \u2014 including torque characteristics, maintenance intervals, and application scenarios \u2014 see our <a href=\"https:\/\/setmakina.com\/en\/expert-technical-views\/vane-vs-axial-piston-pneumatic-motor\/\" target=\"_blank\" rel=\"noopener\">complete motor selection guide<\/a>.\n  <\/p>\n\n  <div class=\"sm-product-grid\">\n    <a href=\"https:\/\/setmakina.com\/en\/products\/vane-type-pneumatic-motor\/\" class=\"sm-product-card\" target=\"_blank\" rel=\"noopener\">\n      <div class=\"sm-ptag\">Vane Type \u00b7 All ATEX Variants<\/div>\n      <div class=\"sm-pname\">ZM10 \/ ZM80 \/ STRC1650<\/div>\n      <div class=\"sm-pspec\">Underground ATEX \u00b7 Surface ATEX \u00b7 Normal Use<\/div>\n      <div class=\"sm-pdesc\">Vane type pneumatic motors for quarrying, underground mining, and heavy industrial drives. Bidirectional (ZM10 and ZM80) or unidirectional (STRC1650). Anti-static paint and grounding-ready housing on all ATEX variants. 5\u20137 bar operating pressure.<\/div>\n      <div class=\"sm-parrow\">View vane motors \u2192<\/div>\n    <\/a>\n    <a href=\"https:\/\/setmakina.com\/en\/products\/axial-piston-pneumatic-motor\/\" class=\"sm-product-card\" target=\"_blank\" rel=\"noopener\">\n      <div class=\"sm-ptag\">Axial Piston \u00b7 All ATEX Variants<\/div>\n      <div class=\"sm-pname\">EP20 \/ EP40 \/ EP80 \/ EP120<\/div>\n      <div class=\"sm-pspec\">Underground ATEX \u00b7 Surface ATEX \u00b7 Normal Use<\/div>\n      <div class=\"sm-pdesc\">Axial piston pneumatic motors for precision automation, construction equipment, and manufacturing drives in hazardous areas. High power-to-size ratio with full ATEX certification available across the EP20 to EP120 range. 5\u20137 bar operating pressure.<\/div>\n      <div class=\"sm-parrow\">View axial piston motors \u2192<\/div>\n    <\/a>\n    <a href=\"https:\/\/setmakina.com\/en\/products\/planetary-gear-reducer\/\" class=\"sm-product-card\" target=\"_blank\" rel=\"noopener\">\n      <div class=\"sm-ptag\">Reducer \u00b7 Rotasyon Red\u00fckt\u00f6r<\/div>\n      <div class=\"sm-pname\">RR10-1000 \u2014 Rotasyon Red\u00fckt\u00f6r<\/div>\n      <div class=\"sm-pspec\">24:1 reduction ratio \u00b7 180\u00b0 working angle<\/div>\n      <div class=\"sm-pdesc\">Planetary gear reducer designed for pairing with ZM and EP motors in drilling system rotation and lifting applications. 24:1 reduction ratio delivers high output torque at controlled speed. Compatible with ATEX motor installations.<\/div>\n      <div class=\"sm-parrow\">View reducer \u2192<\/div>\n    <\/a>\n    <a href=\"https:\/\/setmakina.com\/en\/pneumatic-motors-reducers\/\" class=\"sm-product-card\" target=\"_blank\" rel=\"noopener\">\n      <div class=\"sm-ptag\">Full Range \u00b7 All Motors &amp; Reducers<\/div>\n      <div class=\"sm-pname\">Pneumatic Motors &amp; Reducers \u2014 Full Range<\/div>\n      <div class=\"sm-pspec\">Vane \u00b7 Axial Piston \u00b7 Armut \u00b7 Zincir \u00b7 Rotasyon<\/div>\n      <div class=\"sm-pdesc\">Set Makina&#8217;s complete pneumatic motor and reducer portfolio \u2014 vane type, axial piston, and three reducer families. ATEX variants available across all motor models. Manufactured in Turkey by Set Makina since 1991.<\/div>\n      <div class=\"sm-parrow\">Browse full range \u2192<\/div>\n    <\/a>\n  <\/div>\n\n\n  <!-- CTA -->\n  <div class=\"sm-cta\">\n    <h3>Need ATEX documentation or a motor variant recommendation?<\/h3>\n    <p>Set Makina can confirm the correct ATEX variant for your zone classification, provide certification documentation, and advise on grounding and installation requirements for your specific application.<\/p>\n    <a href=\"https:\/\/setmakina.com\/en\/contact\/#action\" target=\"_blank\" rel=\"noopener\">Request ATEX technical support<\/a>\n  <\/div>\n\n\n  <!-- FOOTER META -->\n  <div class=\"sm-footer-meta\">\n    <span>Published by <span class=\"sm-author\">Set Makina Engineering Team<\/span><\/span>\n    <span style=\"color:#ddd;\"> | <\/span>\n    <span class=\"sm-cert\">\n      <svg width=\"12\" height=\"12\" viewBox=\"0 0 24 24\" fill=\"#1a3a5c\"><path d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4z\"\/><\/svg>\n      ATEX Certified\n    <\/span>\n    <span class=\"sm-cert\">Underground &amp; Surface<\/span>\n    <span class=\"sm-cert\">ISO 9001<\/span>\n    <span class=\"sm-cert\">CE Marked<\/span>\n  <\/div>\n\n\n  <!-- RELATED LINKS -->\n  <div class=\"sm-related\">\n    <div class=\"sm-related-title\">Related products &amp; pages<\/div>\n    <ul>\n      <li><a href=\"https:\/\/setmakina.com\/en\/products\/vane-type-pneumatic-motor\/\" target=\"_blank\" rel=\"noopener\">Vane Type Pneumatic Motors \u2014 ZM \/ STRC<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/en\/products\/axial-piston-pneumatic-motor\/\" target=\"_blank\" rel=\"noopener\">Axial Piston Pneumatic Motors \u2014 EP series<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/en\/products\/planetary-gear-reducer\/\" target=\"_blank\" rel=\"noopener\">RR10-1000 Rotasyon Red\u00fckt\u00f6r<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/en\/pneumatic-motors-reducers\/\" target=\"_blank\" rel=\"noopener\">Full Motor &amp; Reducer Range<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/en\/mining\/\" target=\"_blank\" rel=\"noopener\">Underground Mining Solutions<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/en\/contact\/#action\" target=\"_blank\" rel=\"noopener\">Request Technical Consultation<\/a><\/li>\n    <\/ul>\n  <\/div>\n\n  <p class=\"sm-disclaimer\">\n    ATEX installation requirements referenced in this article are drawn from Set Makina&#8217;s official user manuals for the ZM, STRC, and EP motor families and from EU Directive 2014\/34\/EU. Zone classification definitions follow EU ATEX classification standards. Site-specific zone classification must always be determined by a qualified ATEX assessor \u2014 this article provides guidance only and does not constitute a zone classification assessment. Set Makina is the sole authorized service and certification provider for its pneumatic motor range. Manufactured in Ankara, Turkey, since 1991.\n  <\/p>\n\n<\/article>\n\n","protected":false},"excerpt":{"rendered":"<p>When an ATEX pneumatic motor is required for a hazardous environment, the wrong certification choice carries serious legal, safety, and financial consequences. Set Makina manufactures both vane type and axial piston pneumatic motors in three distinct certification variants \u2014 Underground ATEX, Surface ATEX, and Normal Use \u2014 and each must be specified correctly at the&#8230;<\/p>\n","protected":false},"author":2,"featured_media":20759,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"nf_dc_page":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[199],"tags":[],"class_list":["post-20758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ATEX Motors: Underground vs Surface vs Normal | Set Makina<\/title>\n<meta name=\"description\" content=\"Understand the three ATEX variants for pneumatic motors, which zones require certification, grounding rules, and how Set Makina&#039;s ZM and EP motors comply.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/setmakina.com\/en\/technical-insights\/atex-pneumatic-motor-hazardous-environment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ATEX Pneumatic Motors for Hazardous Environments: Underground, Surface, and Normal Use Explained\" \/>\n<meta property=\"og:description\" content=\"Understand the three ATEX variants for pneumatic motors, which zones require certification, grounding rules, and how Set Makina&#039;s ZM and EP motors comply.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/setmakina.com\/en\/technical-insights\/atex-pneumatic-motor-hazardous-environment\/\" \/>\n<meta property=\"og:site_name\" content=\"SET MAKINA\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/setmakina.as\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-23T02:14:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-23T02:14:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/setmakina.com\/wp-content\/uploads\/2026\/06\/atex-motor-post.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"ali\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" 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