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DF-5005-503
HEE
Bolt fastened marine hatch cover | High strength, strong sealing, easy disassembly and assembly
This ship's bolt fixed hatch cover is designed specifically for various small hatches, oil tanks, water tanks, storage tanks, and deck inspection ports on ships. It adopts a uniform bolt compression structure throughout the circumference to
achieve stable and reliable watertight sealing. It has high strength, corrosion resistance, and convenient disassembly and assembly, making it an ideal matching component for ship's airtight compartments.
We have our own production factory and professional ship accessory design team, which can fully customize according to the size, thickness, sealing requirements, and opening positions provided by customers. We independently produce the entire process from sheet cutting, welding, sealing processing to spray testing, ensuring that each set of hatch cover structure is firm, sealed reliably, and adapted accurately.
Product size and accessories
MODEL NO. | ΦA | B | C | D | E | WT.(lbs) |
| DF-5005-503 | 717 | 517 | 78.5 | 590 | 390 | 102 |
| NO. | Name & Specifications | Qty | Material |
| 1 | COVER | 1 | STEEL |
| 2 | GASKET | 1 | BUNA-N |
| 3 | COAMING | 1 | STEEL |
| 4 | HANDLE | 1 | STEEL |
| 5 | BOLT | 22 | ZINC PLATE |
Core product features
▲ Full week bolt compression structure for more stable sealing
The hatch cover adopts a circular and evenly distributed bolt design, which evenly locks the cover plate and hatch enclosure plate with bolts, so that the sealing strip is uniformly compressed throughout the circumference, and there will be no local loosening or leakage problems. Compared to ordinary buckle type hatch covers, the bolt fixing method has higher pressure and longer sealing, which can maintain stable water tightness under long-term navigation vibration and wave impact, effectively preventing seawater, rainwater, and moisture from entering the cabin.
▲ Truly detachable design, easier maintenance and repair
The bolt fixed structure allows the hatch cover to be completely disassembled and independently removed without hinges or tracks, and does not occupy additional space.
Quick dismantling during equipment maintenance
When cleaning the cabin, it can be completely moved away
When replacing accessories, there is no need to damage the structure, which is particularly suitable for scenarios such as oil tanks, sewage tanks, storage tanks, cable tanks, etc. that require frequent opening or complete opening.
▲ High strength structure, resistant to impact and deformation
The main body of the hatch cover is made of ship steel plate, which is formed as a whole and has strong rigidity. After being locked with bolts, the overall stiffness is greatly increased, and it can withstand deck trampling, cargo collision, and ship navigation vibration, without deformation or warping. The bolts, gaskets, and pressure plates are all made of rust proof materials, and the overall structure is sturdy and durable, suitable for long-term use in marine environments.
▲ High quality sealing system, double guarantee of water tightness/wind and rain tightness
The hatch cover is equipped with high elasticity EPDM rubber sealing strips, which are tightened by bolts to form a continuous and complete sealing band, achieving the standard wind, rain and water tightness performance for ships. Even in high salt spray and high humidity environments, it will not harden or crack, and will not leak or leak water after long-term use.
▲ Simple installation, precise positioning, and strong universality
The bolt hole position can be accurately matched according to the size of the customer's hatch. On site, simply align the hole position and lock the bolt to complete the installation, without the need for complex tools or professional modifications. It can be made in various shapes such as square, rectangle, circle, etc., suitable for various types of ship small hatches, engine room openings, maintenance openings, and storage hatches.
Our factory and design advantages
Own factory, fully automated production process
From raw material cutting, welding, machining to spraying, pressure testing, and inspection, all are completed in our factory, with strict quality control and no outsourcing links, ensuring batch consistency and delivery speed. Each set of bolt compartment covers undergoes sealing testing and visual inspection before leaving the factory to ensure no leakage or deformation.
Professional design team, supporting complete customization
We can provide based on the customer's:
Hatch size (length x width/diameter)
Number of bolts and distribution of hole positions
Sealing grade requirements
Provide a one-to-one customization solution for material thickness and surface color, and can also be directly produced according to drawings to adapt to various ship types.
Corrosion resistant marine technology, suitable for marine environments
The overall use of marine anti rust primer and topcoat, bolts and fasteners made of galvanized or stainless steel materials, resistant to salt spray and seawater corrosion, with a longer service life and lower maintenance costs.
Applicable scenarios
· Small hatch on ship deck
· Oil tank, water tank, sewage tank cover
· Storage compartment, emergency maintenance port
· Fishing boats, engineering boats, workboats, and special vessels
· Closed hatches that require frequent disassembly and full opening
After-sales service
Support customization of size, shape, and bolt quantity
Provide installation diagrams and technical guidance
Factory direct supply, stable prices, and more favorable bulk prices
Fast delivery time, timely after-sales response
