{"id":49023,"date":"2023-10-10T14:22:37","date_gmt":"2023-10-10T12:22:37","guid":{"rendered":"https:\/\/essmann.com\/essmann-crane-scales\/"},"modified":"2026-08-03T12:32:21","modified_gmt":"2026-08-03T10:32:21","slug":"cranescales","status":"publish","type":"page","link":"https:\/\/essmann.com\/en\/cranescales\/","title":{"rendered":"ESSMANN crane scales"},"content":{"rendered":"
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Preview scales store<\/h2>\n\n\n\n
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Buying advice for crane scales in our ESSMANN scales store<\/h2>\n\n\n\n
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Crane scales<\/strong> are mainly used in industry to measure large masses. They are usually hung on the hook of a crane and the goods to be weighed are attached to the lower hook or shackle of the scale. Hooks and shackles are available in different designs as required. Crane scales are often used in production facilities<\/strong> to weigh raw materials. <\/p>\n\n\n\n

Crane scales are also used in warehouses<\/strong> and distribution centers<\/strong> to determine the weight of goods. In ports<\/strong> and transshipment centers<\/strong>, the mass of goods can be determined directly when unloading a ship. When loading container ships<\/strong>, each container is weighed with the crane scale and placed in the ship according to its weight to ensure even distribution of the freight. <\/p>\n\n\n\n

The weighing ranges that can be recorded with crane scales range from a few hundred kilograms to 100 tons, depending on the maximum load limit and resolution of the scale.<\/p>\n\n\n\n

It is important to choose the right crane scale for your specific needs. We have listed what you should consider before buying in the box below. <\/p>\n\n\n\n

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What to consider when buying crane scales<\/p>\n\n\n\n

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  1. Type of crane scale <\/strong>There are different types of crane scales, such as simple hanging scales, digital crane scales with remote control, mechanical scales for weights from 200 to 85,000 kg, calibrated crane scales and pointer crane scales. The choice depends on your specific requirements. <\/li>\n\n\n\n
  2. Weighing range and resolution <\/strong>Select a weighing range that does not exceed 2\/3 of the maximum permissible nominal load of the crane scale. Crane scales are normally dimensioned larger (150% nominal load), but unexpected forces can occur when the crane moves, which can overload the load cell.The weighing range directly influences the display accuracy, also referred to as graduation or resolution. For a weighing range of up to 6,000 kg, the resolution is 1,000 g. A crane scale with a maximum load of 3,000 kg displays an accuracy of 500 g. The crane scale should therefore be selected according to the loads to be weighed. <\/li>\n\n\n\n
  3. Safety<\/strong> The crane scale is used to suspend the load to be weighed and then lifted by the crane. As a load handling device, it is subject to Directive 2006\/42\/EC:2019-06-20. In some companies, the load to be weighed is also moved from one place to another. If the scales or parts of them are defective and can cause the load to fall, this can have serious consequences. To avoid damage caused by using the crane scale as a load handling device, the operators must be trained and the scale must be checked regularly. The operating instructions specify the intervals for checking the scale. The above-mentioned guideline limits the service life of a crane scale, depending on the load cycles. Further information can be found in the respective operating instructions. <\/li>\n\n\n\n
  4. IP protection class and temperature range<\/strong>Crane scales are used both indoors and outdoors. When selecting a crane scale, it is important to pay attention to the IP protection class and the operating temperature. If the scale is used outside the permitted temperature range, accuracy can no longer be guaranteed. <\/li>\n\n\n\n
  5. Measurement Data Storage and Transmission<\/strong>Our digital crane scales come standard with functions for storing measurement data and more. They allow you to calculate totals, display maximum values from a series of measurements, and\u2014if an interface is available\u2014also output measurement data to a PC, printer, or smartphone using the EWA Scale Software<\/a><\/strong>. Additionally, remote controls are included in the scope of delivery, which simplify operation and speed up the weighing process. <\/li>\n\n\n\n
  6. Calibration<\/strong> According to EU Directive 90\/384 EEC, hanging or crane scales must be calibrated in certain applications. calibrated<\/a><\/strong> e.g. in commercial transactions when the price of a product is determined by weighing.<\/li>\n\n\n\n
  7. Dead weight and battery life<\/strong>Many digital crane scales are lightweight and can therefore be moved quickly by one person. If the scale is to be moved frequently, the tare weight of the crane scale should be taken into account during the selection phase. For mobile use, another relevant criterion is the battery life or the possibility of changing the battery. <\/li>\n\n\n\n
  8. Manufacturer and price <\/strong>Compare prices and quality of different manufacturers before making a decision.<\/li>\n\n\n\n
  9. Accessories <\/strong>Think about which accessories you may need, such as a rotating hook or a remote indicator for longer distances.<\/li>\n<\/ol>\n\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>
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    How do digital crane scales and hanging scales work?<\/h2>\n\n\n\n
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    Crane scales use the tensile effect to determine the weight. Most crane scales use an S-shaped load cell to measure tensile and compressive forces. To determine a weight, it is suspended from the digital crane scale and secured with a snap hook. The applied force deforms the stable spring balancer of the crane scale in a linear fashion. <\/p>\n\n\n\n

    After the weight has been removed, the spring balancer returns to its starting position. The digital display of the crane scale continuously shows the measurement result. Operation takes place directly on the crane scale, via a remote control or connected weighing software. It is also possible to carry out tensile force measurements. With optional remote displays, the measurement result can also be read from a distance. <\/p>\n\n\n\n

    Compared to platform or floor scales, a crane scale does not require a fixed installation surface. They are very mobile and can be quickly moved or swiveled to another position using a crane. Even long and bulky goods can be weighed by using suitable load handling equipment such as ropes, chains or crossbeams. <\/p>\n\n\n\n

    For particularly large or sensitive goods, where several load application points are required for transportation and fast and reliable weight determination, several crane scales can be interconnected to form a network. The weights of the individual load application points are added together, similar to axle load scales with several platforms. <\/p>\n\n\n\n

    The application areas of crane scales<\/h2>\n\n\n\n

    Crane scales are ideal for weighing loads that can be suspended. They are used in various areas where goods are transported and handled by crane. These include transport and logistics companies, steelworks, foundries, recycling yards, chemical companies, the textile, plastics and paper industries, metal processing companies, mechanical engineering and the steel trade. <\/p>\n\n\n\n

    When a crane is used for loading or unloading, a crane scale can immediately check and record the weight of the load. This weight information is useful for complying with maximum weights, distributing the weight evenly on the means of transport or optimizing storage in pallet racks or cantilever racks. The recorded weight data can be used directly during loading or unloading to create freight documents and manage stock levels. <\/p>\n\n\n\n

    Crane scales are also suitable in areas where there are high requirements for cleanliness or explosion protection, such as in aerospace technology, clean rooms or explosion-protected areas.<\/p>\n\n\n\n

    Maintenance, calibration and verification<\/h2>\n\n\n\n

    The reliable operation of your crane scales in day-to-day business creates a high level of availability and thus supports the success of your company. Most of these scales are used for internal use and are therefore not calibrated and usually cannot be verified. Due to the dynamic and high load, regular calibration and maintenance is recommended. This prevents incorrect measurements and accidents. <\/p>\n\n\n\n

    Calibration of a crane scale<\/h3>\n\n\n\n

    A crane scale is calibrated with test weights. To do this, the test weights are attached to the crane scale and the measured value is read off. If the displayed value deviates from the weight value of the test weight, the scale must be adjusted. This is possible with many of our scales via the device menu, otherwise the scale can also be sent to the manufacturer, who will carry out the adjustment. As this is always also considered a load handling device, the operating time is limited due to the dynamic load. The operating time can be found in the operating manual or can of course be requested. <\/p>\n\n\n\n

    Calibrated crane scale<\/h3>\n\n\n\n

    If the calibrated crane scale is used in legal metrology, for example for price determination, regular recalibration is required. The verification periods are based on the German Measurement and Verification Ordinance. The applicable intervals for recalibration depend on the maximum weighing range: <\/p>\n\n\n\n