关于 Cranemaster
关于我们
Cranemaster 是海上起重机和起重作业的减震器和海浪补偿器的专业供应商。 我们的海浪补偿器和减震器直接对负载或吊钩补偿力和运动,保障海上提升作业,并使客户能够在较高的波浪中工作。 我们在挪威拥有大量可提升 1400 吨的 Cranemaster® 装置出租,或请咨询本地 代表。
我们具有很强能力的工程团队渴望通过现有 技术或开发定制解决方案来解决您所遇到的动力或运动方面的挑战。 提升作业的 Orcaflex 分析是由我们的分析团队进行。

海上起重领域的先行者

Ernst B. Johansen
自 1983 年创立以来,Ernst-B. Johansen AS(公司的正式名称)已成为海上提升作业的减震和被动型海浪补偿系统领域的市场领导者。
创始人恩斯特·约翰森 (Ernst B. Johansen) 从北海地区越来越多的起重事件中看到了市场中的空白。 他通过努力工作和致力奉献,使公司成为其领域的领导者。
如今,Ernst-B. Johnansen AS 通过其营销品牌 Cranemaster 与全球诸多领先的海上承包商开展了密切合作。

持续产品开发
创新和持续产品开发是 Cranemaster 理念的核心。 自从第一批装置在 20 世纪 80 年代初开发出来以后,这些装置一直在改进和完善,增加了锁定和释放、快速提升和深度补偿等功能。
今天,我们先进的系统配备了阀门、传感器和 PLS,可自动优化从提升到着陆期间的装置性能。
我们新的和现代化设施使我们能够进行各种测试和模拟,甚至我们最大的装置也能在内部处理。
全球 Cranemaster 网络
通过受信任的全球合作伙伴提供本地仓储、服务,并提供解决方案工程师。 请随时直接与他们联系。
Cranemaster 的新闻
Deep water pressure testing
Deep water puts enormous pressure on underwater equipment so testing prior to deployment is crucial to ensure all [...]
Challenging met mast removal (decommissioning)
Based on solid experience on suction bucket foundation installation challenges, Cranemaster was recently involved to support on a [...]
Mudmat safely installed in deep waters
Cranemaster was recently used for deployment of a large mudmat (13,75 x 13,75 meter) at 1788 meter in the [...]
Cranemaster partners with Unique Group to extend presence in the Middle East and India
We are happy to inform that since November 2016, Unique Group, with its head office in Sharjah, UAE, [...]
管理团队
订购和交货
Cranemaster 有全球最大的出租装置系列,可以实现随时进场作业。 加上从报价到交货的快速响应,确保我们能为客户缩短交货时间并按时交货。
Cranemaster® 装置可路运、海运或空运。 装运通常使用开敞集装箱或货板。 如果空运,则装置不能提前加压。 这些装置交货时两端配有钩环(重型或宽体)、软管、压力表、充气装置、氮气瓶适配器和有效证书。 如果有需要,Cranemaster 维修技术人员 可以协助进场、在现场为操作人员提供培训和/或在提升作业期间提供海上协助。
各个装置的尺寸和重量请见产品数据表, 也可通过我们的咨询表或我们的出租装置概览索取。 我们的销售工程师很乐意帮助您找到最合适您的要求的解决方案。


常见问题
A passive heave compensator (PHC) is a spring-damper system based on gas pressure and hydraulic fluid. As it is self contained, no external connections of hoses or wires are required.

As of today Cranemaster® has been used at 2700 meters water depth and is designed to operate down to 3000 meters. However, for deep water operations special depth compensation techniques may be required.
Yes, the Cranemaster® is designed to instantly respond to its surroundings, take up slack wire and reduce dynamic loads.
Yes, Cranemaster® units will work perfectly together with AHC that responds to inputs from an accelerometer.
What is the difference between Active Heave Compensation (AHC) and Passive Heave Compensation (PHC)?
Both Active Heave Compensation (AHC) and Passive Heave Compensation (PHC) are techniques used on lifting equipment to reduce the influence of waves upon offshore operations. AHC differs from PHC by having a control system that actively compensates for any movement using external energy. Passive systems reacts to external forces without additional energy to control the motion.
No, as passive Cranemaster® units rely on external forces to reduce motion, it will have no impact on the movements of free hanging objects in air.
Yes. When there is relative motion between the lifted object and the boom tip, a snap load will occur, increasing DAF and potentially lead to unacceptable high peak loads. Cranemaster® will work as a shock absorber, efficiently removing these snap loads, reduce DAF and improve safety. Typically, this enables our clients to conduct such lifts in higher waves, thereby increasing the operational weather window.