316 Stainless Steel Folding Grapnel Boat Anchor - 0.7-12 kg
The AirowMarine 316 Stainless Steel Folding Grapnel Anchor is a compact, foldable boat anchor designed for convenient onboard storage and suitable marine anchoring applications. Made from mirror-polished AISI 316 stainless steel, it features four folding flukes and a locking collar designed to help hold the flukes in the selected position.
Available in 11 weight options from 0.7 kg to 12 kg, this stainless steel grapnel anchor gives boat owners a range of sizes to consider based on vessel characteristics, seabed conditions, expected weather, and the complete anchoring setup. Its folding design helps reduce storage space when the anchor is not deployed.
Before choosing a weight, consider your vessel's displacement and windage, expected wind and current, water depth, seabed type, anchor rode configuration, and recovery method. Anchor weight alone does not determine holding performance or anchoring safety.
Anchor selection note: The listed kilogram values refer to anchor weight, not a rated vessel-size limit. No single anchor weight is suitable for every boat or anchoring condition. Check the product dimensions and available technical information before ordering.
Key Features of the Folding Grapnel Anchor
1. AISI 316 Stainless Steel Construction
Made from AISI 316 stainless steel with a mirror-polished finish, this anchor offers a clean marine hardware appearance. Stainless steel is commonly used in marine environments for its corrosion resistance, although salt deposits, surface contamination, and inadequate maintenance can still cause staining or corrosion over time.
2. Four Folding Flukes
The four-fluke design folds for more compact storage and convenient handling aboard a suitable vessel. Before use, ensure the flukes are deployed and positioned according to the product's intended operating method.
3. Locking Collar Mechanism
The locking collar is designed to help keep the flukes in the selected position. Inspect the collar and pivot areas before use, and do not use the anchor if the locking mechanism is damaged or does not operate correctly.
4. Eleven Weight Options
Choose from 11 listed anchor weights to compare with your vessel's anchoring requirements. The appropriate option depends on more than weight alone, including the seabed, expected conditions, and the configuration of the complete anchoring system.
| Option | Anchor Weight |
|---|---|
| Size 1 | 0.7 kg |
| Size 2 | 1.5 kg |
| Size 3 | 2.5 kg |
| Size 4 | 3.2 kg |
| Size 5 | 4 kg |
| Size 6 | 5 kg |
| Size 7 | 6 kg |
| Size 8 | 7 kg |
| Size 9 | 8 kg |
| Size 10 | 10 kg |
| Size 11 | 12 kg |
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Folding Grapnel Boat Anchor |
| Product Type | Folding Grapnel Anchor / Marine Anchor |
| Material | AISI 316 Stainless Steel, as listed |
| Finish | Mirror Polished |
| Fluke Design | Four Folding Flukes |
| Locking Mechanism | Locking Collar |
| Available Weights | 0.7, 1.5, 2.5, 3.2, 4, 5, 6, 7, 8, 10, and 12 kg |
| Weight Range | 0.7-12 kg |
| Brand | AirowMarine |
| Intended Use | Suitable marine anchoring applications, subject to correct sizing and operating conditions |
How to Choose a Folding Grapnel Anchor Weight
Choosing a stainless steel boat anchor involves more than matching the anchor to the length of a vessel. Consider the following factors before selecting a weight.
1. Vessel Type and Characteristics
Consider the vessel's length, displacement, hull design, windage, and intended use. A small tender and a larger boat may have very different anchoring requirements, even if their lengths are similar.
2. Water Depth and Operating Conditions
Evaluate expected wind, current, wave conditions, water depth, and the length of time the vessel will remain anchored. Changing conditions can increase the loads placed on the anchor and the rest of the anchoring system.
3. Seabed Type
Grapnel anchors may behave differently on rocky bottoms, weed, sand, and mud. Holding performance depends on the seabed and whether the flukes can engage effectively. Do not assume that this anchor will provide reliable holding in every seabed type.
4. Anchor Rode and Connections
Check the compatibility and condition of the anchor rope or chain, shackles, attachment points, and other components. Appropriate rode configuration and scope depend on the vessel, water depth, and operating conditions.
5. Storage and Recovery
Consider available storage space, the ease of handling the selected weight, and the method used to deploy and recover the anchor. A folding design can simplify storage, but the complete anchoring setup must still be appropriate for the intended use.
When sizing is uncertain, consult a qualified marine professional and follow applicable vessel and local anchoring guidance.
Material and Maintenance
AISI 316 stainless steel is commonly used in marine hardware because of its corrosion resistance. However, stainless steel is not corrosion-proof. Salt deposits, crevices, surface contamination, dissimilar-metal contact, and inadequate maintenance can contribute to staining or corrosion.
To help maintain the appearance and condition of the mirror-polished anchor:
- Rinse the anchor with fresh water after exposure to saltwater.
- Remove salt deposits, dirt, and debris.
- Inspect the flukes, pivot areas, locking collar, and attachment points before use.
- Check the anchor rode, shackles, and other connections for wear or damage.
- Stop using the anchor if the locking mechanism or any structural component is damaged or does not operate correctly.
Regular inspection and maintenance are important parts of a safe anchoring routine.
Frequently Asked Questions
What is a folding grapnel anchor?
A folding grapnel anchor is a type of anchor with multiple flukes that fold for more compact storage. This design can make it convenient to carry and stow aboard a suitable vessel. Holding performance depends on the anchor design, seabed, vessel, and operating conditions.
What material is this grapnel anchor made from?
The anchor is specified as AISI 316 stainless steel with a mirror-polished finish. If you require material documentation for a particular application, confirm the specification for the selected variant with the supplier.
Which anchor weight is suitable for my boat?
There is no universal weight recommendation based on boat length alone. Vessel displacement, windage, expected wind and current, seabed, water depth, rode configuration, and intended anchoring conditions all matter. Seek qualified advice if you are unsure which size to choose.
Is a grapnel anchor suitable for sand, mud, weed, or rock?
Performance can vary significantly across seabed types, and reliable holding is not guaranteed in every environment. Evaluate the seabed and local conditions before use, and do not rely on the anchor beyond its intended application.
Can a 316 stainless steel anchor still corrode?
Yes. Although AISI 316 stainless steel offers corrosion resistance in many marine applications, staining or corrosion can still occur under certain conditions. Rinse the anchor regularly and inspect it for deposits, crevice corrosion, damage, and wear.
How should I store a folding boat anchor?
Fold the flukes according to the product's intended operating method, check that the locking collar functions correctly, and secure the anchor in an appropriate storage location. Prevent movement during transit and inspect the anchor before the next use.
Ordering and Shipping
Select your required folding grapnel anchor weight before adding the product to your cart. Available shipping services and final charges depend on the selected variant, destination, and applicable shipping arrangements.
For shipping questions, product details, or preliminary guidance on comparing weight options, contact sales@airowmarine.com. Include your destination and required anchor weight in your message.
Important: Verify the selected variant, product details, anchoring requirements, and condition of all equipment before use. Anchor weight alone does not guarantee suitable holding performance or safe anchoring.