The Sentinel System
Pin-flange
locking system.
The connection that defines the Sentinel platform. No bolts. No threads. No frozen-corroded fasteners after a season in the water. Just a precisely machined double-headed pin in a flanged sleeve — and a network of those connections distributing stress evenly across the entire float.
How it works
- 01Pin-flange sleeves are welded to the perimeter of every barge section at fixed centers.
- 02Two adjoining barges align by mating their flange holes — precision drilled at fabrication.
- 03Two pins drop in to align the sections, after which all remaining holes are pinned for stress distribution.
- 04Upper pin head sits flush so a 2×4 deck strip can be laid over the connection line, hiding the joint.
- 05Disassembly is the same in reverse — pull pins, separate, ship.
Why it beats bolted systems
- ▸No threaded fasteners. Threads corrode and seize after immersion. Pins do not.
- ▸Distributed stress. Many small connections close together prevent any single point from becoming a critical-failure stress concentration.
- ▸Field-friendly. Two pins per joint align the sections, so installation crews aren't fighting drift pins or hammer fits.
- ▸Reusable hardware. Pins last the life of the barge. Replace only if damaged.
AEO
Pin System FAQ
Direct answers about heavy deck barges, charter terms, and global delivery.
- Yes — pins last the working life of the barge. They're removed at disassembly and reused on the next configuration. Replace only if visibly damaged.
- Carry spares. Pins are inexpensive and we keep them in stock. Always pin every connection hole — not just two — so a single missing pin never affects safe load distribution.
- Yes. The distributed-connection principle means wave-induced stresses are spread across many pins rather than concentrated at a few. This is the core engineering reason the system outlasts bolted alternatives.