Oil-Tight & Watertight Marine Manhole Covers for Fuel and Water Tanks

• Customization: Available
• After-sales Service: Reply Within 24 Hours
• Warranty: 1 Year
• Model NO.: MHC-A450
• Classification Society Certification: CCS
• Color: Silver
• Standard Component: Standard Component
• Open Style: Opening
• Material: Aluminum
• Function: Gas Tight Window
• Form: Round / Oval
• Nominal Diameter: 450mm
• Cover Material: Stainless Steel (304/316L)
• Secrecy Level: Watertight, Oil-Tight, Airtight
• Transport Package: Wooden Box
• Specification: Custom Made
• Trademark: Wealida
• Origin: Suzhou, China
• HS Code: 8411910000
• Production Capacity: 50000 Sets/Year
• Package Size: 120.00cm * 100.00cm * 80.00cm
• Package Gross Weight: 150.000kg

Product Description

High-performance watertight/oiltight marine manhole covers, providing reliable protection for ship compartment

Our high-performance marine hatch cover High-strength steel used, internal reinforcement design Designed with advanced technology and robust materials, Optimize the structure through finite element analysis to withstand deck cargo stacking and wind-wave impacts. Suitable for heavy-duty applications, it delivers exceptional performance in diverse terrains and working conditions.

Specification

Applications

1.Oil-tight type: Suitable for fuel tanks and lubricating oil tanks.

2.Watertight type: Suitable for ballast tanks, fresh water tanks, and ship hull plates.

3.Deck Type: Equipped with anti-slip panels, suitable for walkway areas on decks.
4.Bulkhead type: Suitable for installation on vertical or inclined bulkheads.

Key Configurations

Exceptional strength and durability: High-strength steel is used, with internal reinforcement design, and the structure is optimized through finite element analysis to withstand deck cargo stacking and wind and wave impacts.

Absolutely reliable watertight performance:The dual-seal strip design, efficient compression mechanism, and unique drainage channel work together to ensure a watertight seal in any sea conditions.

Efficient and convenient operation experience: A single person can safely and quickly open/close large covers, significantly improving loading and unloading efficiency.

Excellent corrosion resistance: The product is sandblasted for rust removal and coated with high-performance epoxy primer and topcoat systems to ensure long-term service in salt spray environments.

Key Configurations

Quick-opening and closing design (central screw or quick-clamp lever)
Excellent sealing performance (watertight, oil-tight)
Hydraulic/Mechanical Drive
Global Classification Society Certification

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Model	EX200	EX300	EX400
Operating Weight (kg)	20,000	30,500	45,000
Engine Power (kW)	110	165	220
Bucket Capacity (m³)	0.8–1.2	1.2–1.8	1.8–2.5
Max Digging Depth (m)	6.2	7.5	8.8
Max Reach (m)	9.5	11.2	13.6
Fuel Tank (L)	350	450	600

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Wealida Marine Power System(Suzhou) Co., Ltd.

Wealida Marine Power System(Suzhou) Co., Ltd. is a leading Chinese manufacturer of construction equipment with over 20 years of expertise. Certified with ISO 9001, CE, and GOST, we export to 50+ countries, offering reliable machinery backed by R&D innovation and strict quality control.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Bow Thruster

deck mchinery

crane

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.