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Hangzhou Ever-Power Dişli Çark Şirketi
On a fishing vessel, you cannot call a maintenance contractor. The parts you have aboard are the parts you work with. The components that last the whole season mean the difference between reaching port with a hold full of fish and returning early for a breakdown.
The Marine Drive Environment and Why It Defeats Standard Sprockets
Offshore fishing and processing vessels operate in one of the most aggressive corrosion environments that industrial machinery encounters: continuous saltwater aerosol from wave action and deck-washing, periodic direct seawater flooding of deck-mounted equipment, fish-processing brine and gut-acid contamination of conveyor drives, hypochlorite sanitiser applied multiple times daily, and the mechanical vibration of a working vessel at sea. Carbon steel sprockets in this environment can be visibly corroding within 72 hours of installation. By week two of a six-week fishing trip, the chain is carrying rust debris from sprocket surfaces into the fish-processing equipment. A 316 SS sprocket installed on the same drive starts the trip clean, runs the entire season without corrosion-related degradation, and is inspected and reused the following season rather than binned in port. The Ever-Power #60 Paslanmaz Çelik Dişli is the standard specification for vessel conveyor and hauler drives that must run reliably from departure to return — regardless of what the North Atlantic, the Bering Sea, or the Southern Ocean throws at the deck.
Installation and Maintenance in Constrained Vessel Space
Engine rooms and fish-handling deck areas on working vessels are not maintenance shops — they are constrained, wet, and often accessible from only one direction. Sprockets that require shaft end access for installation or removal present a significant practical problem in these spaces. We supply three configurations that address vessel-specific installation constraints:
Three-screw removal without shaft disassembly. Best where the shaft can be reached from one end — covers most vessel conveyor and hauler installations.
Bolted-split design — install and remove around the shaft without moving anything adjacent. Specified for mid-shaft positions where nothing can be disturbed.
Standard for new installations where the shaft is accessible. H7 bore tolerance ensures a precise fit without fretting at sea.
Teknik Özellikler
| Parametre | Değer |
|---|---|
| Zincir No. | ANSI 60 |
| Saha | 19,05 mm (3/4″) |
| Recommended Grade | 316 SS (seawater / chloride environment) |
| Diş Aralığı | 8T – 72T |
| Merkez Seçenekleri | Finished bore / Taper-lock / Two-piece split |
| Uyumluluk | ANSI B29.1 Sınıf A, ISO 9001:2015 |
What a Season at Sea Does to the Corrosion Data
Marine environments accelerate corrosion at a rate that is dramatically higher than most industrial land-based applications — a combination of continuous chloride aerosol, cyclic wet-dry exposure, and galvanic coupling risk from dissimilar metals in the hull. The passivation treatment we include with marine orders (citric acid per ASTM A967) maximises the oxide layer before the sprocket is installed, giving it the best possible starting condition. Pairing 316 SS sprockets with 316 SS chain eliminates the galvanic risk at the chain-sprocket interface. Using SS fasteners throughout removes the last common source of galvanic corrosion on vessel conveyor drives. The result is a drive that requires only one inspection at the end of each fishing season rather than mid-trip intervention.
Marine Drive System Components
A complete marine stainless steel sprocket drive system requires consistent 316 SS throughout:
- ANSI 60 316 Paslanmaz Çelik Makaralı Zincir — matched grade to eliminate galvanic coupling
- 60H Ağır Seri Paslanmaz Çelik Zincir — for hauler and deck winch drives at higher loads
- Two-Piece Split SS Sprockets — for mid-shaft positions in constrained spaces
- 316 SS Mil Bilezikleri — for precise sprocket location against wave-induced vibration
- Passivated Vessel Kit — sprocket + chain + hardware, all passivated and packaged for storage aboard
What Vessel Engineers Report
“North Atlantic cod season — 7 weeks at sea. The 316 SS #60 sprockets on the gutting table conveyor looked brand new when we got back. The carbon units we used previously were orange by week 3. These stay on the vessel.”
“We ordered split-hub SS #60 sprockets for the net-hauler drive where the shaft is completely inaccessible. Installation took 25 minutes instead of 4 hours with the previous method. Excellent product and practical solution.”
“Salmon processing vessel, Bering Sea. Second season on the same 316 SS sprockets — still in tolerance on the tooth profile gauge. The passivation certificate was useful for our vessel HACCP documentation.”
Equip Your Vessel for the Season — Order Before Departure
+86-571-88220653 | [email protected] | SHENHUA YOLU, HANGZHOU, ÇİN
Tamamını görün paslanmaz çelik dişli çark serisi or read about us at the Hakkımızda sayfası.
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