Block Repair & Refurbishing from BLP Services

auxilliary-block-vesselBLP Services team took on a huge refurbishing job on a 400te main deck crane auxiliary block on a multi-purpose, deepwater pipe lay and heavy lift vessel.  This 400te working load limit (WLL) hook block is an auxiliary block on one of the three cranes on-board designed to support heavy lift, pipelay and subsea installations. Crane blocks require frequent inspections daily, periodic inspections quarterly to annually depending on use, and a complete disassembly and thorough inspection service every 5 years.

Our service technicians started with a complete inspection of the duplex hook and attachments checking for deformation, cracks, gouges, and thread wear.  They then checked the latches on either side of the hook for proper function. The sheave wheels were inspected for misalignment, or wobble, and wear, and the proper positioning of sheave pin nuts. The rope grooves were checked for normal wear from use or for abnormal wear from misuse such as using improperly sized wire rope. This block is designed to be used with 2-3/4" diameter wire rope. All nuts, bolts, pins, and other hardware were double checked to make sure they were still installed and that they didn't show any signs of bending. The side plates, pins and axles, fittings and trunions were checked for signs of cracking and deformation. The block assembly was completely disassembled and any damaged or missing parts were repaired or replaced.  

The refurbishing process included: 

  • Pre and Post Non-destructive testing (NDT)
  • Blasting to remove all old paint
  • All bearings and seals were replaced with new
  • DNV witnessed, 110% overload pull tested (986,000 lbs.)
  • Re-painted and tagged
  • Full certification pack

BEFORE

AFTER

Bishop Lifting Products, Inc. Fabricates World’s Longest Polyester Roundsling

August 26, 2016--Bishop Lifting Products, Inc. (BLP), a fabricator and distributor of slings and rigging supplies, fabricated the world’s longest polyester roundsling in Houston, Texas.

The Polyester Roundsling was fabricated for a special subsea installation project for use in the Gulf of Mexico.  The BLR7 model sling has a vertical capacity of 21,200 lbs., and a record breaking length of 280 feet.

Bishop Lifting Products has a dedicated team of skilled synthetic sewers who are taught and trained on the correct standards and policies in line with the Web Sling and Tie Down Association (WSTDA) and ASME B30.90 “Slings” for fabricating synthetic slings.

About Bishop Lifting Products, Inc.

Founded in 1984, Bishop Lifting Products, Inc. (BLP) is a leading fabricator and distributor of products, services, and lifting solutions for crane, rigging, marine, and oilfield applications. Our 500+ dedicated employees throughout Texas, Louisiana, Kansas, Colorado, and Oklahoma supply wire rope, slings, rigging hardware, lifting devices, hoists and winches to customers with lifting, oilfield, towing, and hauling applications.

roundsling