Home /Industries/Marine & Deck Equipment/Marine-Duty A-Frames & Derricks A-Frames & Derricks for Marine Applications Worldwide Timberland Equipment has earned a reputation for supplying durable and functional A-Frames and Derricks to the construction and marine industries since 1947. Most Timberland A-Frames and Derricks are custom designed to suit load rating and boom radius requirements for your project. We supply derricks with lifting capacity up to 500 tonne. A few of our products are highlighted below. Contact us for your specific needs. 50 Ton capacity A-Frame –50 Ton capacity A-Frame with 115 degrees of motion and 49 ft. (14.9 m) height to bottom of cross head.– Unit is complete with a Passive Motion Compensator150 Ton, 110 ft. (33.5 m) Boom– 150 Ton, 110 ft. (33.5 m) Boom used for leg erection on Jack-Up Drilling Rig or for a Marine Construction Barge300 Ton capacity Shearleg Derrick– 300 Ton capacity Shearleg Derrick, 250 ft. (76 m) boom Ask a Question? Please enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser to complete this form.Name *Company *City *Country *Email *Question or Comment:Submit Home /Industries/Marine & Deck Equipment/Marine-Duty A-Frames & Derricks