Heavy-Duty Marine Steel Manhole Cover
Our marine steel manhole cover provides secure, reliable access to ship compartments while maintaining structural integrity when closed. Designed for frequent use by maintenance crews, these rugged covers feature heavy-duty steel construction with multiple fastener options for optimal sealing performance.
Key Features & Benefits:
✔ Robust Steel Construction: 4-18mm thickness options for various load requirements
✔ Secure Fastening System: M20-M26 bolts (16-24 count) ensure tight sealing
✔ Corrosion Protection: Available with galvanized or marine-grade paint finishes
✔ Multiple Size Options: Standard sizes from 450×350mm to 800×600mm
✔ Quick Installation: Precise dimensional tolerances for easy fitting
Technical Specifications
Standard Models Available:
| Clear Size (L×B) mm | L1 mm | L2 mm | B1 mm | B2 mm | Thickness (S) mm | Fastener Size | Fastener Qty | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 450×350 | 470 | 570 | 370 | 470 | 4 | M20 | 16 | 28.9 |
| 450×350 | 470 | 570 | 370 | 470 | 6 | M20 | 16 | 33.8 |
| 450×350 | 470 | 570 | 370 | 470 | 8 | M20 | 16 | 37.2 |
| 600×400 | 620 | 720 | 420 | 520 | 6 | M20 | 20 | 49.5 |
| 600×400 | 620 | 720 | 420 | 520 | 8 | M20 | 20 | 55.6 |
| 800×600 | 820 | 920 | 620 | 720 | 8 | M26 | 26 | 67.2 |
| 800×600 | 820 | 920 | 620 | 720 | 10 | M26 | 26 | 75.2 |
| 800×400 | 830 | 930 | 430 | 530 | 12 | M24 | 24 | 56.8 |
| 800×400 | 830 | 930 | 430 | 530 | 14 | M24 | 24 | 63.2 |
Note: The description might be incorrect, please contact us for confirmation.
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