{"id":25544,"date":"2026-03-10T20:55:40","date_gmt":"2026-03-10T20:55:40","guid":{"rendered":"https:\/\/airtec.global\/?post_type=product&#038;p=25544"},"modified":"2026-07-08T19:32:33","modified_gmt":"2026-07-08T19:32:33","slug":"sts-series-belt-drive-rotary-screw-compressor","status":"publish","type":"product","link":"https:\/\/airtec.global\/en\/product\/sts-series-belt-drive-rotary-screw-compressor\/","title":{"rendered":"Serie STS"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"row-container\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"exair-hero-block\">\n<div style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center;\">\n<div>\n<h3 style=\"font-size: 15px; font-weight: bold; color: #ffffff; border-bottom: 1px solid rgba(255,255,255,0.15); padding-bottom: 8px; margin-bottom: 12px;\">STS Series Belt Drive Rotary Screw Compressor \u2013 Reliable Performance for Continuous Industrial Operation<\/h3>\n<p>The STS Series by South-Tek Systems is designed to provide a stable and efficient compressed air supply in industrial environments where demand remains constant.<\/p>\n<p>Its fixed-speed configuration with belt drive ensures robust operation, accessible maintenance, and an excellent cost-benefit ratio. The high-efficiency IE3 motor optimizes energy consumption, while its low-speed design contributes to extended system service life.<\/p>\n<p>Thanks to its compact construction and quiet operation, it integrates easily into various production environments, maintaining reliable performance even in conditions up to 45\u00b0C.<\/p>\n<\/div>\n<div><img decoding=\"async\" style=\"width: 100%; border-radius: 6px; display: block;\" src=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-3-1.png\" alt=\"STS Series Belt Drive Rotary Screw Compressor\" title=\"\"><\/div>\n<\/div>\n<\/div>\n<div class=\"exair-footer-note\" style=\"margin-top: 14px;\">\n<p>For more information about belt drive rotary screw compressors and industrial compressed air systems, visit <a href=\"https:\/\/www.southteksystems.com\" target=\"_blank\" rel=\"dofollow noopener\">SouthTek Systems<\/a> and <a href=\"https:\/\/www.compressedairchallenge.org\" target=\"_blank\" rel=\"dofollow noopener\">Compressed Air Challenge<\/a>.<\/p>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"row-container\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_row wpb_row vc_inner vc_row-fluid vc_row-o-content-top vc_row-flex\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div style=\"font-family: Arial,sans-serif;\">\n<div class=\"exair-apps-grid\" style=\"display: grid; grid-template-columns: 1fr 1fr 220px; gap: 20px; align-items: start;\">\n<div>\n<h4 style=\"font-size: 11px; font-weight: bold; color: #3c73b8; text-transform: uppercase; letter-spacing: .8px; padding-bottom: 6px; border-bottom: 1px solid #e8e8e8; margin-bottom: 12px;\">Applications<\/h4>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">General manufacturing.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Metalworking industry.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Industrial workshops.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Production pneumatic systems.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Assembly processes.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 0;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Extended shift operations.<\/p>\n<\/div>\n<\/div>\n<div>\n<h4 style=\"font-size: 11px; font-weight: bold; color: #3c73b8; text-transform: uppercase; letter-spacing: .8px; padding-bottom: 6px; border-bottom: 1px solid #e8e8e8; margin-bottom: 12px;\">Advantages<\/h4>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Optimized energy consumption through IE3 motor.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Extended durability due to low-speed operation.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Reduced maintenance costs.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Easy installation in limited spaces.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Stable performance under demanding environmental conditions.<\/p>\n<\/div>\n<div style=\"display: flex; align-items: flex-start; gap: 8px; margin-bottom: 0;\">\n<p>&nbsp;<\/p>\n<p style=\"font-size: 13px; color: #444444; line-height: 1.5; margin: 0;\">Excellent balance between investment and performance.<\/p>\n<\/div>\n<\/div>\n<div style=\"text-align: center;\"><img decoding=\"async\" style=\"width: 100%; border-radius: 6px; display: block;\" src=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-2-1-600x716.png\" alt=\"STS Series Belt Drive Rotary Screw Compressor\" title=\"\"><\/div>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h3 style=\"color: #3c73b8;\">High-Performance Engineering and Components<\/h3>\n<hr \/>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>The STS Series integrates industrial-grade components recognized for their reliability. It incorporates non-proprietary motors from WEG S.A., improving spare parts availability and reducing long-term service costs. Models up to 40 HP operate in tri-voltage configuration, while units rated at 50 HP and above are configured for standard 460V operation. All motors feature Class F insulation for enhanced thermal protection.<\/p>\n<p>The bar-and-plate cooling system improves heat dissipation and reduces contaminant buildup, maintaining operational efficiency. Its microprocessor-based controller includes integrated phase protection, current monitoring, and MODBUS compatibility, and is prepared for Industry 4.0 and IoT integration, enabling remote supervision and enhanced system control.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_raw_code wpb_content_element wpb_raw_html\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<br>\n\t\t<\/div>\n\t<\/div>\n\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper vc_box_rounded  vc_box_border_grey\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1035\" height=\"680\" src=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1.png\" class=\"vc_single_image-img attachment-full\" alt=\"STS Series by South-Tek Systems\" title=\"STS Series by South-Tek Systems\" srcset=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1.png 1035w, https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1-300x197.png 300w, https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1-1024x673.png 1024w, https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1-768x505.png 768w, https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1-18x12.png 18w, https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Diseno-sin-titulo-1-1-600x394.png 600w\" sizes=\"(max-width: 1035px) 100vw, 1035px\" \/><\/div><figcaption class=\"vc_figure-caption\">STS Series by South-Tek Systems<\/figcaption>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"exair-content-block\">\n<h4>Energy-Efficient Compressed Air Solution for Industrial Applications<\/h4>\n<p>The STS Series Belt Drive Rotary Screw Compressor is engineered to deliver dependable compressed air while maintaining low operating costs throughout its service life. Its fixed-speed configuration makes it an excellent choice for facilities with relatively stable air demand, where continuous and consistent compressor operation is required.<\/p>\n<p>Unlike variable-speed compressors that constantly adjust motor speed, fixed-speed units perform most efficiently when operating under stable load conditions. For manufacturing plants, production lines, packaging facilities, and general industrial operations with predictable compressed air consumption, the STS Series offers an economical and highly reliable solution.<\/p>\n<p>The belt drive transmission also provides additional flexibility. Belt tension can be easily adjusted during scheduled maintenance, helping maintain optimal performance while minimizing wear on critical rotating components. This simple design reduces maintenance complexity and contributes to lower lifecycle costs compared to more complicated drive systems.<\/p>\n<p>Each compressor is manufactured using industrial-grade components selected for long-term durability. The oversized cooling system, premium bearings, and precision-engineered airend work together to provide reliable operation under demanding production schedules, reducing the likelihood of unexpected downtime.<\/p>\n<\/div>\n<div class=\"exair-content-block\">\n<h4>Designed for Easy Maintenance<\/h4>\n<p>Routine maintenance is one of the most important factors affecting compressor lifespan, and the STS Series has been designed to simplify every service procedure. Large access panels allow technicians to quickly reach filters, belts, coolers, and lubrication components without removing major assemblies. This significantly reduces maintenance time while lowering labor costs during scheduled service intervals.<\/p>\n<p>The intelligent controller continuously monitors operating parameters, allowing operators to detect abnormal conditions before they develop into costly failures. Preventive maintenance reminders also help ensure that service intervals are completed on time, improving equipment reliability and protecting the compressor investment. Because the compressor utilizes standard industrial components, replacement parts are readily available, reducing maintenance delays and minimizing production interruptions.<\/p>\n<\/div>\n<div class=\"exair-content-block\">\n<h4>Quiet and Compact Design<\/h4>\n<p>Industrial facilities often face space limitations, making equipment footprint an important consideration during installation. The STS Series combines a compact cabinet design with low operating noise, allowing installation closer to production areas without creating excessive workplace noise. Its integrated airflow management system efficiently directs cooling air through the machine while maintaining optimal internal temperatures. The compact footprint also simplifies transportation, positioning, and installation, making the compressor suitable for both new industrial facilities and retrofit projects where available floor space may be limited.<\/p>\n<\/div>\n<div class=\"exair-content-block\">\n<h4>Reliable Air Supply for Continuous Production<\/h4>\n<p>The STS Series Belt Drive Rotary Screw Compressor is designed to deliver consistent air pressure during continuous operation, supporting pneumatic tools, automation systems, packaging equipment, CNC machinery, material handling systems, and numerous other industrial applications. Its robust airend, efficient cooling package, and premium motor combine to produce dependable airflow while minimizing energy losses. Whether operating in single-shift facilities or demanding multi-shift manufacturing environments, the STS Series provides the dependable compressed air supply required to keep production running efficiently.<\/p>\n<\/div>\n<div class=\"exair-content-block\">\n<h4>Long-Term Value for Industrial Facilities<\/h4>\n<p>Investing in an industrial air compressor involves more than the initial purchase price. Long-term operating costs \u2014 including energy consumption, maintenance requirements, service availability, and equipment lifespan \u2014 have a significant impact on total ownership costs. The STS Series has been developed to maximize long-term value by combining energy-efficient operation with durable construction and simplified maintenance. For companies seeking a reliable fixed-speed rotary screw compressor that balances performance, durability, and operating efficiency, the STS Series Belt Drive Rotary Screw Compressor offers a practical solution for a wide variety of industrial compressed air applications.<\/p>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"row-container\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div id=\"downloads\" style=\"font-family: Arial,sans-serif;\">\n<div style=\"display: flex; align-items: center; gap: 10px; margin-bottom: 16px;\">\n<h3 style=\"font-size: 13px; font-weight: bold; color: #1a1a2e; text-transform: uppercase; letter-spacing: 1px; margin: 0;\">Downloads<\/h3>\n<\/div>\n<div style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\">\n<div style=\"background: #1a1a2e; border-radius: 8px; padding: 20px; display: flex; align-items: center; gap: 20px;\"><img decoding=\"async\" style=\"width: 80px; border-radius: 4px; box-shadow: 0 4px 12px rgba(0,0,0,0.4); flex-shrink: 0;\" src=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Portada-Manual-STS-Series.png\" alt=\"STS Series Belt Drive Rotary Screw Compressor Manual\" title=\"\"><\/p>\n<div style=\"flex: 1;\">\n<p style=\"font-size: 12px; font-weight: bold; color: #ffe600; margin-bottom: 10px; text-transform: uppercase; letter-spacing: .5px;\">STS Series Manual<\/p>\n<p><a style=\"display: inline-flex; align-items: center; gap: 6px; background: #FFE600; color: #1a1a2e; font-size: 12px; font-weight: bold; padding: 9px 14px; border-radius: 5px; text-decoration: none;\" href=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/STS-Series-Sell-Sheet-f.pdf\" target=\"_blank\" rel=\"noopener\" download=\"\">\u2b07 Download Manual<\/a><\/p>\n<\/div>\n<\/div>\n<div style=\"background: #1a1a2e; border-radius: 8px; padding: 20px; display: flex; align-items: center; gap: 20px;\"><img decoding=\"async\" style=\"width: 80px; border-radius: 4px; box-shadow: 0 4px 12px rgba(0,0,0,0.4); flex-shrink: 0;\" src=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/Portada_Catalogo-STSP-2-Series.png\" alt=\"STS Series Belt Drive Rotary Screw Compressor Catalog\" title=\"\"><\/p>\n<div style=\"flex: 1;\">\n<p style=\"font-size: 12px; font-weight: bold; color: #ffe600; margin-bottom: 10px; text-transform: uppercase; letter-spacing: .5px;\">STS Series Catalog<\/p>\n<p><a style=\"display: inline-flex; align-items: center; gap: 6px; background: #FFE600; color: #1a1a2e; font-size: 12px; font-weight: bold; padding: 9px 14px; border-radius: 5px; text-decoration: none;\" href=\"https:\/\/airtec.global\/wp-content\/uploads\/2026\/03\/STS-Compressor-Brochure-250331-f-2-1.pdf\" target=\"_blank\" rel=\"noopener\" download=\"\">\u2b07 Download Catalog<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<div class=\"exair-product-box\">\n<div class=\"exair-quote\">\n<p>The <strong>STS Series Belt Drive Rotary Screw Compressor<\/strong> delivers reliable industrial compressed air with a fixed-speed belt drive design optimized for energy efficiency, quiet operation, and extended service life.<\/p>\n<\/div>\n<ul class=\"exair-list\">\n<li><span class=\"exair-check\">\u2713<\/span>High-efficiency IE3 motor with belt drive transmission for easy maintenance and adjustment.<\/li>\n<li><span class=\"exair-check\">\u2713<\/span>Quiet operation with compact design and small installation footprint.<\/li>\n<li><span class=\"exair-check\">\u2713<\/span>Low-speed system that extends service life \u2014 capable of operating in environments up to 45\u00b0C.<\/li>\n<li><span class=\"exair-check\">\u2713<\/span>Easy access for service and maintenance \u2014 6-year airend warranty.<\/li>\n<li><span class=\"exair-check\">\u2713<\/span>Reliable STS Series Belt Drive Rotary Screw Compressor for continuous industrial operations.<\/li>\n<\/ul>\n<div class=\"exair-btns\"><a class=\"btn-yellow\" href=\"\/en\/contact\/\">Request A Quote \u2192<\/a><br \/>\n<a class=\"btn-outline\" href=\"#downloads\">\ud83d\udcc4 Catalog<\/a><\/div>\n<\/div>","protected":false},"featured_media":25545,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":""},"product_brand":[],"product_cat":[482,488,487],"product_tag":[],"class_list":{"0":"post-25544","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-rotary-screw-compressors","7":"product_cat-high-capacity-compressed-air","8":"product_cat-industrial-fixed-speed-compressors","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/product\/25544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/comments?post=25544"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/media\/25545"}],"wp:attachment":[{"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/media?parent=25544"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/product_brand?post=25544"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/product_cat?post=25544"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/airtec.global\/en\/wp-json\/wp\/v2\/product_tag?post=25544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}