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The company has always adhered to the "quality" for survival, reputation, as the leading business philosophy, has an excellent team of engineers, perfect production equipment and after-sales service.
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After-sale service and technical assistance: company provides after sales service and technical assistance as per customers' requirement and needs with response within 24 hours.
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Shandong Lisheng Machinery Co., Ltd. is a new generation enterprise dedicated to the hardware industry. It is located in Jining City, Shandong Province, the hometown of Confucius and Mencius. The company is a professional hardware supporting enterprise integrating design, research and development, production and sales. The main products are chains, wire ropes and their accessories: shackles, turn buckles, clips, rings, snap hooks and other forgings and castings, and accept drawings and samples for processing.
Maintenance and Care of the Anchor Chain
Proper maintenance and care are essential to ensure the longevity and reliability of the anchor chain. Regular inspections are necessary to identify any signs of wear, corrosion, or damage. The chain should be cleaned, lubricated, and protected against corrosion to mitigate the effects of the harsh marine environment.
In addition to visual inspections, regular tension tests and measurements are conducted to assess the chain's strength and integrity. Any damaged or worn links must be promptly repaired or replaced to maintain the chain's performance. Proper storage and handling in the chain locker are also crucial to prevent tangling or obstructions when deploying or retrieving the anchor.
Importance of the Anchor Chain
The anchor plays a major role in a vessel and offshore operations. However, it can only function as long as it remains attached to the floating structure.
Considering the tremendous amounts of force applied to the connection between the anchor and the ship during routine berthing or anchoring conditions, conventional methods of securing the anchor will eventually fail under the extensive stress.
The anchor chain refers to the component that attaches the anchor to the boat or structure and is usually referred to as the anchor rode (or anchor cable). It is superior to conventional methods in terms of strength and load-bearing.
The Mechanics of an Anchor Chain
Understanding the mechanics of an anchor chain is key to appreciating its role in anchoring operations. When the anchor is dropped, the chain pays out, allowing the anchor to settle on the seabed. As the ship moves backward, the chain gradually extends, forming a catenary - a horizontal curve shaped by the weight and tension of the chain. The catenary acts as a shock absorber, distributing the forces exerted on the anchor and reducing strain on both the anchor and the vessel.
Anchor chain storage locker
Anchor chains are stored in a chain locker set deep within the hull of the vessel. These are ventilated enclosures that are used to store the anchor while it is not in use, and to house the remaining length of the anchor chain while it is deployed. It can be accessed by engineers and personnel for routine checks or long-term maintenance.
Generally, the floor of the chain locker is reinforced, so that it can bear the extra weight of the metal rode. To haul the chain out of the locker, a series of heavy-duty motors and gears are set up on the deck in pairs.
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The anchoring equipment of a ship comprises the anchor, anchor chain and the windlass. The anchoring equipment as required herewith is intended for temporary mooring of a ship within a harbour or sheltered area when the ship is awaiting berth, tide etc.
Determining how long your anchor rode should be is as simple as multiplying the deepest water you expect to anchor in by 8. As for rope size, the rule of thumb is 1/8" of rope diameter for every 9' of boat length.
Its primary purpose is to provide a mechanism for ships and boats to hold their position either during berthing and mooring operations at ports, or for large offshore installations such as semi-submersible oil rigs to remain stationary above an oil deposit.