JIS F2005-1975 Closed Chock – Premium Deck-Mounted Rope Protection
Japanese-Engineered Durability for Mooring Safety
Our JIS F2005-1975 Closed Chock is a deck-mounted marine essential that combines precision Japanese engineering with heavy-duty performance. Certified by the Japanese Standard Association, this cast steel chock actively prevents rope damage while extending mooring line lifespan through superior friction reduction.
Key Advantages
✔ Advanced Rope Protection
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Closed-cell design prevents dangerous slippage
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Smooth interior surfaces reduce abrasion by 50%+
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Significantly extends rope service life
✔ Industrial-Grade Construction
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High-quality cast steel for maximum durability
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Precision-cast to exact JIS specifications
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Corrosion-resistant for harsh sea conditions
✔ Two Size Ranges Available
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Compact series: 100mm-200mm (for smaller vessels)
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Standard series: 250mm-500mm (for commercial ships)
✔ Certified Quality Assurance
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Fully complies with JIS F2005-1975 standard
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Japanese marine-grade certified
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IACS recognized design
Technical Specifications
| Feature | Specification |
|---|---|
| Model Type | Deck Mounted Closed Chock |
| Material | JIS-Grade Cast Steel |
| Nominal Sizes | 100-200mm / 250-500mm |
| Standard | JIS F2005-1975 |
| Surface | Marine-Grade Protective Finish |
Parameters:
| Nominal | Leg | Calculated | Nominal dia. of applicable rope | L | L1 | L2 | B | H | H1 | H2 | H3 | R | R1 | T | (T1) | (R2) | (R3) | ||
| Size | Of | mass | (Reference) | ||||||||||||||||
| (mm) | weld | (kg) | Wire | Manila | Nylon | ||||||||||||||
| Rope | rope | rope | |||||||||||||||||
| (6×24) | |||||||||||||||||||
| 100 | 7 | 8.7 | 14 | 24 | 18 | 100 | 35 | 170 | 60 | 76 | 141 | 30 | 35 | 38 | 73 | 12 | 10 | 30 | 18 |
| 150 | 8 | 10.5 | 16 | 30 | 22 | 150 | 50 | 250 | 90 | 110 | 205 | 45 | 50 | 55 | 105 | 16 | 12 | 45 | 29 |
| 200 | 9 | 24 | 18 | 40 | 28 | 200 | 70 | 340 | 120 | 150 | 280 | 60 | 70 | 75 | 145 | 20 | 16 | 60 | 40 |
The description/sizes may be different with goods, please check with us when order.
