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JD Neuhaus Offers Explosion Protected Crane Systems JD Neuhaus公司的防爆起重机


Crane systems manufactured by Germany-based J D


Neuhaus company can be supplied with Atex classifica- tions. EX II 2 GD IIA T4 / EX II 3 GD IIB T4, with increased spark protection also available for explosion level II C. Their products are used worldwide, op- erating in some of the most dangerous dust laden conditions as well as hazardous, toxic and potentially explosive atmospheres. Typical applications include mining, tunneling, metalcasting facilities and cement plants, with toxic and hazardous locations including chemical processing, while oil and gas production on land or offshore involves some unique heavy load handling requirements in addition. All load lift, lower and traverse operations operate


off a pneumatic air-line pressure of 85psi (6 bar), with optional hydraulic operating systems also available. Tis eliminates the potential hazards and dangers associated with electrically powered equipment when operating within areas of high dust or humidity. Te JDN range covers both single and double girder


overhead travelling cranes, together with slewing jib cranes and underslung cranes incorporating purpose designed low headroom hoist trolley designs. Cranes with individual hoists having load capacities up to 100 tonnes can be supplied, as well as multiple hoist crane prod- ucts operating with single or twin parallel beams, while also providing individual or synchronised hoist control systems. For offshore lifting operations, including on sea going


vessels, cranes can be supplied with rack and pinion drive systems for safe operation even in bad weather condi- tions. Super-silent operation is combined with sensitive controls including an automatic safety function for load- lowering in the event of power supply failure. Special purpose, fully customized cranes also can be supplied to customer specifications. For compa- nies looking for self-build projects, JDN also supplies crane kits. These are designed for the manufacture of overhead traveling cranes and underslung cranes. They feature the use of a single span beam providing the hoist support and running platform. This includes both overhead traveling and underslung mountings which are supplied with crane drive motors and space saving energy chain systems for the power supplies for both long and cross travel movements. Typical customized products that have been supplied


include a hydraulic semi-portal crane, with a lift capacity of 80 tonnes for use on a drilling rig. Tis incorporated twin monorail hoists, together with four JDN hydraulic drives for the crane travel movements. Other specialist products for the oil and gas indus-


try include an 80-ton double girder overhead traveling design for ‘xmas tree’ handling on a semi-submersible rig.


J D Neuhaus公司的起重机系统可以提供不同 的防爆指令类型EX II 2 GD IIA T4 / EX II 3 GD IIB T4,增强的火花保护还可以用于爆炸级水平II C。 他们的产品在全球广泛使用,可以在最危险的尘埃 环境中、以及有害有毒的易爆炸空气中使用。典型 的应用领域包括采矿、隧道、铸造厂及水泥厂,这 些领域处于含有化学品处理等有关的有害有毒气体 的环境中,此外,陆地及海上的石油天然气开采也 需要特别的吊装作业设备。


所有的负荷举升、降低和摇臂操作的气动气压为 85psi (6 bar),还安装有可选的液压操作系统,可 以避免一些在尘土较多和湿度较大的环境中操作电 力设备时可能引发的险情。


JDN系列产品包括单梁和双梁桥式起重机,回 转式动臂起重机及悬挂式起重机,涵盖了低净空起 重机小车的功能。单个起重机的负荷能力达到100 吨,使用单个或双平行梁的多个起重机也可以提供 单个或同步提升控制系统。


海上吊装作业包括海上航行的船只,起重机安装 了齿条齿轮传动系统,即使在恶劣天气条件下也可 以安全操作。超静音操作系统由敏感的控制系统组 成,包括自动安全保护功能,可以在电力故障情况 下,降低负荷物,保证安全。


特别定制的起重机能够满足客户的需求。对于自 助建设项目,JDN也可以提供起重机配套设备,为 桥式起重机和悬挂式起重机专门设计。他们的特点 是安装了单跨距梁起重设备,提供举升支持和运行 平台。桥式起重设备和悬挂式起重设备都安装了起 重驱动器和节约空间的能源系统,可供两种起重设 备进行长距离和往返移动。


JDN生产的经典定制产品包括半开门式液压起重 机,其钻机的举升能力可达80吨,由2台单轨起重 设备,以及4台JDN液压驱动装置支持起重机的移 动。


其他用于石油天然气开采的特殊产品,包括80 吨举升能力的双梁桥式起重设备,可用于半潜式钻 井平台上的“圣诞树”式作业。另外一个专门设计 的产品可为海上电站辅助设备提供200吨的举升能


December 2014 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 79


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