This page contains whitepapers, technical service bulletins, and other technical documents Logan has produced and published publically to further the industry.

New Reduced Bore Direct Acting Tensioner

Logan Industries developed a new shallow water drop in replacement Direct Acting Tensioner (DAT) for use in offshore drilling and completions.

Publication:Logan Industries Completes Reduced Bore DAT Project

Logan Industries Investigates Knuckle Boom Crane Cylinder Vibration Phenomena

Logan Industries troubleshot a severe knuckle boom crane cylinder vibration discovered while on the test stand during a routine repair.

Publication: Logan Cylinder Vibration Case Study

Traction Winches

Logan Industries partnered with Samson Rope to develop a 170-ton traction winch.

Publication: Samson & Logan Traction Winch


Knuckle Boom Crane Cylinder Failure due to mis-configured Counterbalance Valves

Logan Industries has assisted many companies in maintaining their crane cylinders.   We have seen several of these cylinders been inadvertently damaged in the same manner.  This guideline is published to the industry to help prevent more of these incidents.

Publication: Techincal Service Bulletin 0318537