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System Components
Components & Specifications
Corehead
Core Barrel System
Release Module
Main Winch
Fiber Rope
Grapple
A-frame
Stern Sheave
Starboard Davits
Deck Layout

Corehead

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Material
  • shell and inserts: 304/316l stainless steel
  • fill: 3% antimonial lead
Specifications
  • length:80”
  • diameter:36”
  • cylindrical add weights:
    • small = 5.5” dia. x 60” long
    • large = 10.75” dia. x 60” long
  • total head weight: variable in 500 and 2000 pound increments.
    • minumim wt. = 3,400 pounds 
    • maximum wt. = 27,500 pounds


Corehead under construction at WHOI. Tubular inner assembly comprised of variable weight compartments is shown being lowered into main shell.
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Corehead under construction at WHOI

Tubular inner assembly comprised of variable weight compartments is shown being lowered into main shell.



Heads in their cradles alongside R/V <em>Knorr</em>. Insert weights can be seen to the left of the coreheads.
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Heads in their cradles alongside R/V Knorr

Insert weights can be seen to the left of the coreheads.



Corehead being loaded into its handling grapple at WHOI?s Iselin Marine facility.
Enlarge image

 

Corehead being loaded into its handling grapple

at WHOI’s Iselin Marine facility.




Last updated: May 7, 2008
 


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