Cost efficient Offshore Wind Turbine Lifting
We deliver extra lifting height to the jack-up-vessel owner by the protected Tetrahedron design. Design tailorization to customer needs can be performed smoothly by parametric engineering. Fabrication is performed by qualitative European subcontractors. Integration on a compact jackup vessel results in the most sustainable solution possible. Tetrahedron company stays with the customer by continuously maintaining and advancing the involved lifting equipment and crane control software. IP and engineering software ensure the sustainable competitive edge, but the people in the team are the ones that make it happen!
Tetrahedron, simply lifting high
With Wind Turbine Generators getting bigger and bigger, new challenges for the wind installation industry have emerged. One of them is to simply lift higher on a compact Jackup. The Tetrahedron, 50m lifting height upgrade, enables a market entry to lift nowadays 8-15MW turbines for the existing jackup-vessel owner. Tetrahedron is founded on the principle to lift higher.
Technology
Rotterdam-based Tetrahedron company patented, developed and achieved DNVGL design verification on the crane principle and concept design. The Tetrahedron crane is purposely engineered for efficient Wind Turbine Generator installation. Key attention is given to lifting height, capacity at height, lifting radius and jib-clearance. Due to this, a compact Tetrahedron crane model can be used to install today’s largest turbines.
Launching of Tetrahedron 8
Lifting capacity base reeving:
O&M Activities 160T at 30m radius (4 falls)
250T at 16m radius (6 falls)
Blade installation: 120T at 35m
Installation at 130m above deck
Fully electric driven
Speeds:
Main Hoist 160T Load (4 falls): 12 m/min
Main Hoist Empty Hook (4 falls): 30 m/min
Luffing time 10 min
(full stroke)
This crane under construction is suitable for maintenance work. The Tetrahedron crane principle is obviously suitable for installation work and Tetrahedron would be pleased to design it for you.
Keen to learn more?
Of notable mention
“Tetrahedron is set to build a prototype crane with its consortium consisting of Jack-Up Barge BV, TNO, Shell and GE.”
Offshore-mag
“Crane solution means older vessels can be adapted to install next-generation offshore giants.”
Wind Power Monthly
About us
Partners
Contact
Tetrahedron B.V.
Chamber of commerce: 73016608
Visit us at the Heijplaat-RDM building at address:
Klinknagelstraat 2, 3089 JP
Rotterdam, the Netherlands
email:info@tetrahedron.tech
telephone:+31 102613038
LinkedIn: Tetrahedron-cranes
