Max.hook load(KN):3150
O.D. of sheaves (mm/in):1270(50)
No. of sheaves:7
Dia. of wire line (mm/in):35(1 3/8)
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| LS-NOW Crown Block |
Design Features
The drilling line is reeved in parallel.
The crown frame is made of high strength steel shapes & plates.The lug plate for
top drive is provided.lt is equipped with metal base plate,handrail,and toeboard.A ladder has an opening.
A deviation fst-line sheave.
The sheave cluster is tilted to counteract traveling bock`s torque. The side plate assembly is faced with derrick man for ease of picking pff & suspending elevators.
The sheave grooves are intermediate frequency quenched so as to improve surface hardness and extend service life of sheaves.
All sheaves have doudle-row conocal roeller bdarings and each bearing has individual lubricating channel.
The rope guard prevents the wire rope from running out of the sheave grooves.
Equipped with rubber bumper beams.
Equipped with a gin pole for use in repairing the sheaves cluster.
Equipped with sand line sheaves and auxiliary sheaves.
The crown blocks conform to API Spec.4F,8A/8C.
Jining Donghong Machinery Co., Ltd
www.dhparts.com
dh@dhparts.com
spareparts1960@gmail.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
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