{"id":5027,"date":"2026-08-31T07:06:48","date_gmt":"2026-08-31T07:06:48","guid":{"rendered":"https:\/\/www.stehr-spezialmaschinen.de\/70-hz-technology\/"},"modified":"2026-09-24T09:12:53","modified_gmt":"2026-09-24T09:12:53","slug":"70-hz-technology","status":"publish","type":"page","link":"https:\/\/www.stehr.com\/en\/70-hz-technology\/","title":{"rendered":"70 Hz Technology"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5027\" class=\"elementor elementor-5027 elementor-4648\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b60edd2 e-grid e-con-full e-con e-parent\" data-id=\"b60edd2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9b8f776 elementor-widget elementor-widget-html\" data-id=\"9b8f776\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\n  \/* CSS Variables for a consistent color scheme *\/\n  :root {\n    --stehr-blue: #0078bb;\n    --stehr-blue-light: #e6f2f8;\n    --stehr-text: #2c3e50;\n    --stehr-text-light: #555555;\n    --stehr-shadow: 0 10px 30px rgba(0, 120, 187, 0.08);\n    --stehr-shadow-hover: 0 15px 35px rgba(0, 120, 187, 0.15);\n    --stehr-radius: 12px;\n    --stehr-transition: all 0.3s ease;\n  }\n\n  \/* Main container with protection against theme conflicts *\/\n  .stehr-wrapper {\n    font-family: system-ui, -apple-system, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--stehr-text);\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 2rem 0;\n    line-height: 1.6;\n    box-sizing: border-box;\n  }\n\n  \/* Typography Header *\/\n  .stehr-wrapper h2 {\n    color: var(--stehr-blue);\n    font-size: 2.2rem;\n    font-weight: 700;\n    text-align: center;\n    margin-top: 0;\n    margin-bottom: 1rem;\n    position: relative;\n    border: none;\n    padding: 0;\n  }\n\n  \/* Blue underline centered *\/\n  .stehr-wrapper h2::after {\n    content: '';\n    display: block;\n    width: 80px;\n    height: 4px;\n    background: var(--stehr-blue);\n    margin: 15px auto 0;\n    border-radius: 2px;\n  }\n\n  .stehr-intro-text {\n    text-align: center;\n    font-size: 1.2rem;\n    color: var(--stehr-text-light);\n    max-width: 800px;\n    margin: 0 auto 3rem auto;\n  }\n\n  \/* Images General *\/\n  .stehr-wrapper img {\n    max-width: 100%;\n    height: auto;\n    display: block;\n  }\n\n  .stehr-img {\n    border-radius: var(--stehr-radius);\n    box-shadow: var(--stehr-shadow);\n    transition: var(--stehr-transition);\n  }\n\n  .stehr-img:hover {\n    transform: translateY(-5px);\n    box-shadow: var(--stehr-shadow-hover);\n  }\n\n  \/* Feature Rows (Zig-zag layout for image & text) *\/\n  .stehr-feature-row {\n    display: flex;\n    flex-wrap: wrap;\n    align-items: center;\n    gap: 3rem;\n    margin-bottom: 4rem;\n  }\n\n  \/* Reverse every second row (image left, text right) *\/\n  .stehr-feature-row:nth-child(even) {\n    flex-direction: row-reverse;\n  }\n\n  .stehr-feature-content {\n    flex: 1 1 400px;\n  }\n\n  .stehr-feature-image-wrapper {\n    flex: 1 1 400px;\n  }\n\n  .stehr-feature-content h3 {\n    color: var(--stehr-blue);\n    font-size: 1.5rem;\n    margin-top: 0;\n    margin-bottom: 1rem;\n    display: flex;\n    align-items: center;\n    gap: 12px;\n  }\n\n  .stehr-feature-content p {\n    font-size: 1.1rem;\n    color: var(--stehr-text-light);\n    margin: 0;\n  }\n\n  \/* Icon \/ Number circle for headings *\/\n  .stehr-icon {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    min-width: 40px;\n    height: 40px;\n    background: var(--stehr-blue-light);\n    color: var(--stehr-blue);\n    border-radius: 50%;\n    font-weight: 700;\n    font-size: 1.2rem;\n  }\n\n  \/* Feature Cards (Grid for features without images) *\/\n  .stehr-cards-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));\n    gap: 2rem;\n    margin-top: 2rem;\n  }\n\n  .stehr-card {\n    background: #ffffff;\n    padding: 2rem;\n    border-radius: var(--stehr-radius);\n    box-shadow: var(--stehr-shadow);\n    border-top: 4px solid var(--stehr-blue);\n    transition: var(--stehr-transition);\n    position: relative;\n    overflow: hidden;\n  }\n\n  .stehr-card:hover {\n    transform: translateY(-5px);\n    box-shadow: var(--stehr-shadow-hover);\n  }\n\n  \/* Subtle background gradient for the cards *\/\n  .stehr-card::before {\n    content: '';\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    background: linear-gradient(135deg, transparent 60%, var(--stehr-blue-light) 100%);\n    opacity: 0.5;\n    z-index: 0;\n    pointer-events: none;\n  }\n\n  .stehr-card h3, .stehr-card p {\n    position: relative;\n    z-index: 1;\n  }\n\n  .stehr-card h3 {\n    color: var(--stehr-blue);\n    font-size: 1.4rem;\n    margin-top: 0;\n    margin-bottom: 1rem;\n    display: flex;\n    align-items: center;\n    gap: 12px;\n  }\n\n  \/* Responsive Design adjustments for Mobile & Tablets *\/\n  @media (max-width: 768px) {\n    .stehr-wrapper h2 {\n      font-size: 1.8rem;\n    }\n    .stehr-feature-row {\n      gap: 1.5rem;\n      margin-bottom: 3rem;\n    }\n    \/* Remove zig-zag on mobile -> stack everything *\/\n    .stehr-feature-row,\n    .stehr-feature-row:nth-child(even) {\n      flex-direction: column;\n    }\n    .stehr-feature-content, \n    .stehr-feature-image-wrapper {\n      flex: 1 1 100%;\n      width: 100%;\n    }\n    .stehr-wrapper {\n      padding: 1rem;\n    }\n  }\n<\/style>\n\n<div class=\"stehr-wrapper\">\n\n  <!-- Header Area -->\n  <h2>Physical and Mechanical Properties<\/h2>\n  <p class=\"stehr-intro-text\">\n    This system differs from conventional compactors in the following physical and mechanical properties:\n  <\/p>\n\n  <!-- Feature 1: Text left, Image right -->\n  <div class=\"stehr-feature-row\">\n    <div class=\"stehr-feature-content\">\n      <h3><span class=\"stehr-icon\">1<\/span> High-frequency excitation (70 Hz)<\/h3>\n      <p>With a frequency of 70 Hertz, the compactors vibrate about twice as fast as the natural frequency of the soil being compacted. This rapid, high-frequency excitation breaks the friction between the soil particles, causing them to rearrange themselves more quickly and without voids.<\/p>\n    <\/div>\n    <div class=\"stehr-feature-image-wrapper\">\n      <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/Unbenannt-1.jpg\" alt=\"Display of the Stehr machine showing the 70 Hz high frequency\" class=\"stehr-img\" \/>\n    <\/div>\n  <\/div>\n\n  <!-- Feature 2: Image left, Text right -->\n  <div class=\"stehr-feature-row\">\n    <div class=\"stehr-feature-content\">\n      <h3><span class=\"stehr-icon\">2<\/span> 100 % vertical force transmission<\/h3>\n      <p>The plate compactors operate with two or four counter-rotating exciter shafts. With this design, horizontal vibration forces cancel each other out. The entire compaction energy is directed exactly vertically (100 %) into the ground.<\/p>\n    <\/div>\n    <div class=\"stehr-feature-image-wrapper\">\n      <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/Screenshot-2026-08-20-090449.jpg\" alt=\"Detail view of the counter-rotating exciter shafts for 100% vertical force transmission\" class=\"stehr-img\" \/>\n    <\/div>\n  <\/div>\n\n  <!-- Feature 3: Text left, Image right -->\n  <div class=\"stehr-feature-row\">\n    <div class=\"stehr-feature-content\">\n      <h3><span class=\"stehr-icon\">3<\/span> Protection of the surroundings<\/h3>\n      <p>Since no unwanted lateral vibrations are generated and the energy is directed straight down, vibrations in the surrounding area are barely measurable. This makes the machines ideal for sensitive applications, such as on tight inner-city construction sites or directly next to listed buildings.<\/p>\n    <\/div>\n    <div class=\"stehr-feature-image-wrapper\">\n      <img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/Unbenannt-2.jpg\" alt=\"Stehr plate compactor in sensitive use near residential buildings\" class=\"stehr-img\" \/>\n    <\/div>\n  <\/div>\n\n  <!-- Features 4 & 5 (The remaining ones without images as modern Cards) -->\n  <div class=\"stehr-cards-grid\">\n    <div class=\"stehr-card\">\n      <h3><span class=\"stehr-icon\">4<\/span> Depth effect<\/h3>\n      <p>Thanks to the purely vertical force direction and the high frequency, enormous depth effects can be achieved. Measurements show that dump heights of up to one meter can be easily compacted over the entire height in a single pass.<\/p>\n    <\/div>\n    <div class=\"stehr-card\">\n      <h3><span class=\"stehr-icon\">5<\/span> High energy efficiency<\/h3>\n      <p>Because the kinetic energy is used in a targeted manner and does not dissipate aimlessly, significantly less drive power is required for compaction (in some cases only approx. 20 kW). The add-on compactors can therefore be mounted on comparatively light carrier vehicles from 6 tons upwards, which massively reduces fuel consumption and machine effort.<\/p>\n    <\/div>\n  <\/div>\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a9f0c70 e-grid e-con-boxed e-con e-parent\" data-id=\"a9f0c70\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-67a6db4 elementor-share-buttons--view-icon-text elementor-share-buttons--skin-gradient elementor-share-buttons--shape-square elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"67a6db4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" 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85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-share-btn__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__title\">\n\t\t\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Physical and Mechanical Properties This system differs from conventional compactors in the following physical and mechanical properties: 1 High-frequency excitation (70 Hz) With a frequency of 70 Hertz, the compactors vibrate about twice as fast as the natural frequency of the soil being compacted. This rapid, high-frequency excitation breaks the friction between the soil particles,<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5027","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Physical and Mechanical Properties This system differs from conventional compactors in the following physical and mechanical properties: 1 High-frequency excitation (70 Hz) With a frequency of 70 Hertz, the compactors vibrate about twice as fast as the natural frequency of the soil being compacted. 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