Table of Contents
What are specifications for a crane?
installation, testing, commissioning and handover of 10 ton capacity EOT crane: main hoist – 10 tons span – 15.6 meters lift height – 6 meters Long travel 36 meters and other details as per enclosed specifications. One No. rails for long travel. Length of travel 36 meters.
Which one is are type of derrick crane?
A potentially more powerful derrick is the floating crane, which is built on a barge for such purposes as constructing bridges or salvaging sunken objects. The Musashi, a large crane of this type built in Japan in 1974, can lift a 3,000-ton load.
What is derrick and its types?
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, and a boom hinged at its base to provide articulation, as in a stiffleg derrick.
What are 4 specification of a crane?
Specifications Cranes require separate values for bridge and hoist speed and acceleration. You must enter Speed (Empty), Speed (Full), and Accelerate and Decelerate values for bridge movement along the rails and hoist movement across the bridge.
Why is it called a derrick crane?
A 17th century English hangman named Derrick led to a gallows being called a derrick. From there, a crane with a moveable arm came to be called a derrick because it resembled a gallows.
How is crane capacity calculated?
Measure geometric components
- The standard calculation for maximum crane capacity is (r)(hC)/100.
- R = Radius between the ground and load.
- hC = Lifting height multiplied by the capacity.
What derrick means?
People ruler
In English Baby Names the meaning of the name Derrick is: Gifted ruler. People ruler. Old German Theodoric. Famous bearer: Derrick was a 17th century hangman at Tyhurn, whose name became synonymous with gallows and now refers to a type of crane.
Is a derrick crane a mobile crane?
A derrick crane is a specific style of lifting machine. It is usually a fixed crane, meaning it is assembled and disassembled in the location where it is used, although there are some very small mobile styles. Generally, the crane is characterized by its long, fixed length tower.
What is a derrick crane?
A Derrick crane is a mast crane and top of the mast is fixed with the back braces (stiff legs). The mast and a jib are fastened to a slewing platform. The mechanical and electrical equipment to power the crane is also in the back of the crane. The mast, jib and stiff legs are designed as a truss with a square section.
What are the OSHA standards for cranes and derricks?
Crane, derrick, and hoist safety hazards are addressed in specific OSHA standards for general industry, maritime, gear certification, and construction. This section highlights OSHA standards and documents related to crane, derrick, and hoist safety. 1910.179, Overhead and gantry cranes. 1910.180, Crawler locomotive and truck cranes.
What is the load moment of a derrick crane?
The max. load moment (outreach radius) is 455,893 short tons at 275 ft/83.82 m & the max. load moment (centerline radius) is 960,173 short tons at 240 ft/73.15 m. Equipped with a 560 ft twin lattice standard boom and 281 ft. twin lattice mast… Derrick cranes are used for mining of aggregate and to move the heavy loads for long distances.
Where can I find OEM Crane specifications and load charts?
Crane Specifications, Load Charts, and Crane Manuals are for *Reference Only* and are not to be used by the crane operator to operate any type of crane, telehandler, lift truck or aerial access device. To obtain OEM Crane Service, Crane Parts or Crane Maintenance Manuals, contact the crane and or lifting manufacturer directly.