The Hohner group specialises in the design and manufacture of optical encoders. Over the years the company has broadened the product range to include high quality, reliable absolute single and multi-turn encoders to complement the full range of incremental encoders. Further products added to the range include DeviceNet encoders; very low temperature (-40°C) optical sensors for liquid, surface and light; wireless encoders; and IP68 rated encoders.
A range of products with CSA, ATEX, IECEx and GOST certification is available, providing encoders that are explosion proof and intrinsically safe, allowing their use in restricted areas. Further developments include a standard encoder rated to 1000 m underwater (possibilities extend to 6000 m underwater). The drilling rig products include mud flow level return sensors, geolographs (air line retriever), hook load (deadline) sensors, heave compensators (linear displacement), DrawWorks and TopDrive encoders. The safety ratings, extreme depth and drilling rig products allow use within the petrochemical industries, both for production and exploratory applications. Hohner technologies and patents demonstrate Hohner’s continued growth in the last 30 years and the products are used in sectors such as lifting equipment, aerospace, packing, food processing, heavy industry and petrochemicals.
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