Seria M-491 Oilfield Servicing Blocks Crosby®

Drukuj

M-491 Tower / Derrick Hoist Blocks
New design provides the dependability of standard McKissick® snatch blocks, along with features that make it perfect for the challenging needs of Tugger Hoist and Tower Erection applications.
• A wide variety of configurations:
• 4, 8, 12 or 15 metric ton capacity
• 10mm to 25mm wire line sizes
• Painted or Galvanized finish
• 203mm and 254mm blocks furnished with dual rated wireline sheaves.
• Forged steel swivels, tees, yokes and shackles are Quenched & Tempered.
• Sheave lubrication through center pin for easy maintenance.
• Design factor of 4 to 1
• All blocks 356mm and larger are furnished with McKissick® Roll Forged™ sheaves with flame hardened grooves.
• Recessed sideplate design reduces the gap between the sheave rim and the sideplate, allowing the sheave assembly to be captured in the block if loss of center pin occurs.
• Sealed tapered roller bearings extend the life of the center pin and bearings, and allows for faster line speeds than recommended with standard snatch blocks.
• Shackle fitting swivels for easy positioning.
• Suitable for hoisting personnel, contingent upon all employees, including the winch operator, being trained to follow any applicable Federal, local and industry standards.
• Tugger/Derrick applications: API RP54
• Tower applications: OSHA directive CPL 2-1.36
• Holes through side plates are available for secondary block securement device.
• Manufactured by an API Q1 Certified facility
• Type Approval and certification in accordance with ABS 2006 Steel Vessel Rules 1-1-17.7, and ABS Guide for Certification of Cranes.
• All sizes are RFID EQUIPPED.

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