{"id":2653,"date":"2024-03-07T15:01:05","date_gmt":"2024-03-07T14:01:05","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/mobile-hydraulics\/"},"modified":"2026-04-15T10:54:35","modified_gmt":"2026-04-15T08:54:35","slug":"mobile-hydraulics","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/","title":{"rendered":"Mobile hydraulics"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2653\" class=\"elementor elementor-2653 elementor-941\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-735b55f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"735b55f8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2820cb8b\" data-id=\"2820cb8b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9fb9997 elementor-widget elementor-widget-text-editor\" data-id=\"9fb9997\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1>Mobile hydraulics &ndash; fundamentals and examples<\/h1><p>The fluid-powered transmission of forces on vehicles is referred to as <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a>. This primarily refers to vehicles that operate with high forces and therefore carry their own <a href=\"https:\/\/www.bf-hydraulik.com\/hydraulikpumpe.html\">hydraulic pump<\/a>. Brake lines in standard motor vehicles are not considered part of <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a>.   <\/p><h2>Specific challenges in mobile hydraulics<\/h2><p>In theory, hydraulics can generate virtually unlimited forces. Only the permissible compressive stresses on the components limit the forces that can be applied. In vehicles, the installation space and the design of the components used are another limiting factor.  <\/p><p>Generating high operating pressures within the limited space of a moving machine housing is therefore one of the greatest challenges in <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a>. While many technical issues can be solved by using adapted components, this comes at the expense of purchase price. Components in <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a> are significantly more expensive than comparable components in stationary <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">hydraulic system<\/a>s. If <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a> is used not only in vehicles but also in avionics, the factors of reliability and weight are added. This further increases the cost of drives and actuators.    <\/p><h3>What tasks does mobile hydraulics face?<\/h3><p><a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">Mobile hydraulics<\/a> on vehicles is divided into the following areas:<\/p><ul><li>Pressure generation<\/li><li>Pressure transmission<\/li><li>Pressure application<\/li><li>Pressure monitoring<\/li><li>Emergency systems<\/li><\/ul><h3>In mobile hydraulics, pressure is generated by pumps<\/h3><p>The simplest pumps with high pressure generation are <a href=\"https:\/\/www.bf-hydraulik.com\/en\/gear-pumps\/\" target=\"_self\" title=\"Gear pumps in hydraulics - the first choice for many standard applicationsHydraulic systems require a pressure generator. The higher the required pressure, the more powerful the pump used must be.&hellip;\" class=\"encyclopedia\">gear pumps<\/a>. These are used, for example, on agricultural tractors. <a href=\"https:\/\/www.bf-hydraulik.com\/en\/gear-pumps\/\" target=\"_self\" title=\"Gear pumps in hydraulics - the first choice for many standard applicationsHydraulic systems require a pressure generator. The higher the required pressure, the more powerful the pump used must be.&hellip;\" class=\"encyclopedia\">Gear pumps<\/a> are also easy to clean and service. For particularly high operating pressures, piston pumps are used. Depending on the available installation space, either flat but wide <a href=\"https:\/\/www.bf-hydraulik.com\/en\/radial-piston-pump\/\" target=\"_self\" title=\"Radial piston pump ensures high pressuresA radial piston pump is a type of hydraulic delivery pump. It is characterized by its ability to reach very high pressures of up to&hellip;\" class=\"encyclopedia\">radial piston pump<\/a>s or narrow but long <a href=\"https:\/\/www.bf-hydraulik.com\/en\/axial-piston-pumps\/\" target=\"_self\" title=\"Axial Piston Pumps for Maximum PressureAxial piston pumps are designed for extremely high pressures. In addition to their performance, axial piston pumps impress with a compact design and simple operation.&hellip;\" class=\"encyclopedia\">axial piston pumps<\/a> are used. This pump type is standard on construction vehicles such as excavators, <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-crane\/\" target=\"_self\" title=\"Hydraulic Crane - Flexibly Moving LoadsCranes are among humanity's oldest lifting devices. As soon as a civilization wants to erect buildings on a larger scale, cranes are required. For many&hellip;\" class=\"encyclopedia\">hydraulic crane<\/a>s, or crawler machines.     <\/p><p>In <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a>, the generated pressure is primarily used to move attachments. The hydraulic cylinder is the standard component used for this purpose. In addition, radial motors are used to drive the undercarriage, and occasionally also to rotate an upper carriage (or gun turret). When used for propulsion, the hydraulically driven undercarriage ensures high torque. However, hydraulically operated propulsion systems are usually slow.    <\/p><h3>This is why reliable monitoring is important<\/h3><p>Access to <a href=\"https:\/\/www.bf-hydraulik.com\/en\/mobile-hydraulics\/\" target=\"_self\" title=\"Mobile hydraulics &ndash; fundamentals and examplesThe fluid-powered transmission of forces on vehicles is referred to as mobile hydraulics. This primarily refers to vehicles that operate with high forces and therefore&hellip;\" class=\"encyclopedia\">mobile hydraulics<\/a> components is always limited. This makes the use of high-quality components and reliable monitoring necessary. This is achieved through particularly pressure-resistant lines and highly advanced sensor technology.  <\/p><h3>Emergency systems in mobile hydraulics<\/h3><p>Depending on the relevance of the hydraulic sub-circuit, it must be equipped with an emergency system. In most cases, this emergency system is used to be able to shut down the machine in a safe condition. Emergency systems cannot maintain continued operation under normal conditions.  <\/p><p>High-priced, high-performance excavators have emergency valves that allow the boom to be lowered safely and in a controlled manner. 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