Top 10 Manhole cover factory in the World 2025

Ever wondered what goes into the making of the sturdy manhole covers we often take for granted? Comparing the top factories reveals not just quality, but innovation and reliability. Discovering the best options can save you time and money. Join us as we explore the leading manhole cover manufacturers!

Cast Iron Grates, Manhole Covers, & Frames | Neenah Foundry

Product Details: Controlled Pressure Release Manhole Cover and InfraLOCK Manhole Cover

Technical Parameters:
– Raises up to 4 inches to release pressure
– High security locking system

Application Scenarios:
– Underground distribution networks
– Explosion event management

Pros:
– Prevents injury and damage during explosion events
– Protects underground infrastructure with high security

Cons:
– Limited information on specific materials used
– No detailed performance metrics provided

Manhole Cover Manufacturer | Manhole Covers Direct

Product Details: Custom fabricated manhole covers and frames in various sizes and materials including steel, stainless steel, composite, and aluminum. Options for finishes include paint, powder coat, and hot dipped galvanized.

Technical Parameters:
– Standard sizes for round manholes range from 5″ to 60″; square manholes range fr…
– Traffic rated H-20 with options to increase load rating.

Application Scenarios:
– Sewers and drainage systems.
– Fuel distribution and water applications.

Pros:
– Custom solutions available for any size and application.
– Quick turnaround and a large inventory of standard-size covers.

Cons:
– Potentially longer lead times for custom orders.
– Limited availability on weekends.

Manhole Frames and Covers | Neenah Foundry

Product Details: Neenah Foundry manufactures cast iron manhole frames and covers in various sizes, shapes, and designs, including logo customization for large projects. They also supply high security and controlled pressure release covers for critical infrastructure.

Technical Parameters:
– InfraLOCK locking manhole cover
– Controlled Pressure Release covers

Application Scenarios:
– Communications and electrical vaults
– Water supply and sewage systems

Pros:
– High security access control
– Mitigates potential damage from pressure changes

Cons:
– Limited information on specific sizes and shapes
– Potential for tampering if not secured properly

Manhole Covers, Frames & Accessories – Ferguson

Product Details: Manhole Frames, Covers & Accessories from Ferguson offer a variety of products including covers, rings, frames, and assemblies designed for sewer and drainage systems.

Technical Parameters:
– Available in various sizes including 24 in, 30 in, 32 in, and 48 in diameters.
– Manufactured from materials such as gray iron and concrete.

Application Scenarios:
– Used in municipal sewer systems for access and maintenance.
– Applicable in construction projects requiring drainage solutions.

Pros:
– Durable construction suitable for heavy traffic areas.
– Wide range of products to meet different specifications.

Cons:
– Requires certification for certain products.
– Pricing information not readily available online.

MANHOLE COVERS – Bass & Hays Foundry, Inc

Product Details: Bass & Hays Foundry offers a comprehensive range of manhole covers and sewer lid products available in cast gray iron, ductile iron, or fiber reinforced composite materials. The company provides various standard types, sizes, and styles, including stock items and custom options with special lettering and LOGOs.

Technical Parameters:
– Available materials: cast gray iron, ductile iron, fiber reinforced composite
– LEED® certified products available
– Meets AASHTO standards
– ASTM compliant
– Multiple traffic ratings available

Application Scenarios:
– Standard manhole covers
– Reversible rings and frames
– Watertight applications
– Storm drain inlets
– Airport and port authority installations
– Special access and vault covers
– Accessories and tools

Pros:
– American made products
– LEED® certified
– Wide variety of standard and custom options
– Stock items available for quick delivery
– Meets industry standards (AASHTO, ASTM)
– Multiple material options

Cons:
– Special lettering and LOGOs require special order
– Some technical specifications may require additional inquiry
– Limited online technical data availability

Composite Manhole Covers and Frames, Gas Station Manhole Covers, global …

Product Details: Composite manhole covers and frames, including round, square, rectangular, and trench covers, designed for various load-bearing grades (A15, B125, C250, D400, E600).

Technical Parameters:
– High-performance resin and glass fiber materials
– Service life of no less than 30 years

Application Scenarios:
– Lawns, sidewalks, motorized lanes, car parking lots
– Gas stations, freight stations, docks, airports, and other heavy roads

Pros:
– Excellent high and low temperature resistance (-50 to 160 ℃)
– Corrosion resistance against acid, alkali, salt, and organic solvents

Cons:
– Limited information on specific weight capacities for each model
– Potentially higher initial cost compared to traditional materials

Manhole Cover Manufacturers and Suppliers – EB Castworld

Product Details: Manhole covers available in various sizes and materials, including round and square designs, suitable for different applications such as sewage and thermal management.

Technical Parameters:
– Sizes range from 300×300 mm to 900×1000 mm
– Materials include cast iron and composite options

Application Scenarios:
– Power industry for access to underground utilities
– Sewage systems for maintenance and inspection

Pros:
– Durable construction for long-lasting use
– Variety of sizes and designs to meet specific needs

Cons:
– Heavy weight may require machinery for installation
– Potential for rust or corrosion in certain environments

Manhole Covers – Cast Iron, Plastic, & More | Sewer Lid Covers

Product Details: Vodaland offers a variety of manhole covers and access covers including plastic, cast iron, and fillable options. Key products include: Manhole Cover – Black Logo Design ($297), Manhole Cover – Green Logo Design ($297), Manhole Cover – Grey Logo Design ($297), Manhole Cover – Square Black ($271), and various fillable access covers in different sizes and materials.

Technical Parameters:
– Load Classes: A (3,300 lbs) – Pedestrian use
– B (27,500 lbs) – Medium duty traffic and cars
– C (55,000 lbs) – Heavy duty traffic, forklifts, buses
– D (88,000 lbs) – Extra heavy duty traffic, trucks, industrial areas
– Materials: Plastic, Cast Iron (Ductile), Galvanized Steel, Stainless Steel
– Sizes: 15×15 inches to 23×23 inches for fillable access covers

Application Scenarios:
– Residential utility access
– Commercial property maintenance
– Industrial areas and garages
– Parking lots and driveways
– Landscaping projects requiring discreet utility access

Pros:
– Durable construction with load ratings up to 88,000 lbs
– Multiple material options to suit different needs
– Fillable options for custom appearance
– Suitable for both residential and commercial applications
– Competitive pricing starting from $220
– High customer satisfaction (4.9-5.0 star ratings)

Cons:
– Some plastic covers limited to B-Load Class (27,500 lbs) for residential vehicle…
– No models with openings for water passage
– Higher priced options available for stainless steel and larger sizes
– Limited color options for some models

SMC FRP Composite Manhole Cover And Frame, Manhole cover with …

Product Details: SMC FRP Composite Manhole Covers and Frames, available in various sizes and load-bearing grades.

Technical Parameters:
– Weight is 1/4 of cast iron and cement covers.
– Service life usually no less than 30 years.

Application Scenarios:
– Used in lawns, sidewalks, car parking lots, gas stations, and heavy roads.
– Applicable in drainage systems and sealing systems.

Pros:
– Lightweight and convenient for daily inspection and maintenance.
– Excellent high and low temperature resistance, chemical resistance, and dimensio…

Cons:
– Limited information on specific customization options.
– Potentially higher initial cost compared to traditional materials.

Manhole Covers – SYI Foundry

Product Details: SYI Manhole Covers are available in various classes (A15, B125, C250, D400, E600) designed to meet different load requirements. They are made from ductile iron and grey iron, offering a high strength-to-weight ratio.

Technical Parameters:
– Class A15: Minimum load 1.5 metric tons, suitable for pedestrians and pedal cycl…
– Class F900: Minimum load 90 metric tons, suitable for areas with particularly hi…

Application Scenarios:
– Pedestrian areas and footways.
– Carriageways and parking areas.

Pros:
– Ductile iron provides a higher tensile strength and a lighter weight compared to…
– Standard sizes are available for various applications.

Cons:
– Higher initial cost compared to traditional materials.
– Selection of the appropriate class is the designer’s responsibility.

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Comparison Table

Company	Product Details	Pros	Cons	Website
Cast Iron Grates, Manhole Covers, & Frames	Neenah Foundry	Controlled Pressure Release Manhole Cover and InfraLOCK Manhole Cover	– Prevents injury and damage during explosion events – Protects underground infrastructure with high security	– Limited information on specific materials used – No detailed performance metrics provided
Manhole Cover Manufacturer	Manhole Covers Direct	Custom fabricated manhole covers and frames in various sizes and materials including steel, stainless steel, composite, and aluminum. Options for fini…	– Custom solutions available for any size and application. – Quick turnaround and a large inventory of standard-size covers.	– Potentially longer lead times for custom orders. – Limited availability on weekends.
Manhole Frames and Covers	Neenah Foundry	Neenah Foundry manufactures cast iron manhole frames and covers in various sizes, shapes, and designs, including logo customization for large projects…	– High security access control – Mitigates potential damage from pressure changes	– Limited information on specific sizes and shapes – Potential for tampering if not secured properly
Manhole Covers, Frames & Accessories – Ferguson	Manhole Frames, Covers & Accessories from Ferguson offer a variety of products including covers, rings, frames, and assemblies designed for sewer and…	– Durable construction suitable for heavy traffic areas. – Wide range of products to meet different specifications.	– Requires certification for certain products. – Pricing information not readily available online.	www.ferguson.com
MANHOLE COVERS – Bass & Hays Foundry, Inc	Bass & Hays Foundry offers a comprehensive range of manhole covers and sewer lid products available in cast gray iron, ductile iron, or fiber reinforc…	– American made products – LEED® certified – Wide variety of standard and custom options – Stock items available for quick delivery – Meets industry s…	– Special lettering and LOGOs require special order – Some technical specifications may require additional inquiry – Limited online technical data ava…	basshays.com
Composite Manhole Covers and Frames, Gas Station Manhole Covers, global …	Composite manhole covers and frames, including round, square, rectangular, and trench covers, designed for various load-bearing grades (A15, B125, C25…	– Excellent high and low temperature resistance (-50 to 160 ℃) – Corrosion resistance against acid, alkali, salt, and organic solvents	– Limited information on specific weight capacities for each model – Potentially higher initial cost compared to traditional materials	www.bettercover.cn
Manhole Cover Manufacturers and Suppliers – EB Castworld	Manhole covers available in various sizes and materials, including round and square designs, suitable for different applications such as sewage and th…	– Durable construction for long-lasting use – Variety of sizes and designs to meet specific needs	– Heavy weight may require machinery for installation – Potential for rust or corrosion in certain environments	ebcastworld.com
Manhole Covers – Cast Iron, Plastic, & More	Sewer Lid Covers	Vodaland offers a variety of manhole covers and access covers including plastic, cast iron, and fillable options. Key products include: Manhole Cover…	– Durable construction with load ratings up to 88,000 lbs – Multiple material options to suit different needs – Fillable options for custom appearance…	– Some plastic covers limited to B-Load Class (27,500 lbs) for residential vehicle… – No models with openings for water passage – Higher priced opti…
SMC FRP Composite Manhole Cover And Frame, Manhole cover with …	SMC FRP Composite Manhole Covers and Frames, available in various sizes and load-bearing grades.	– Lightweight and convenient for daily inspection and maintenance. – Excellent high and low temperature resistance, chemical resistance, and dimensio….	– Limited information on specific customization options. – Potentially higher initial cost compared to traditional materials.	firstsmc.com
Manhole Covers – SYI Foundry	SYI Manhole Covers are available in various classes (A15, B125, C250, D400, E600) designed to meet different load requirements. They are made from duc…	– Ductile iron provides a higher tensile strength and a lighter weight compared to… – Standard sizes are available for various applications.	– Higher initial cost compared to traditional materials. – Selection of the appropriate class is the designer’s responsibility.	www.syifoundry.com

Frequently Asked Questions (FAQs)

1. What materials are commonly used to make manhole covers?

Manhole covers are usually made from cast iron, steel, or composite materials. Cast iron is the most popular choice because it’s strong, durable, and cost-effective. Steel covers are lighter but more expensive, while composite covers are lightweight and corrosion-resistant. Each material has its own advantages depending on the specific application and environment.

2. How long does a manhole cover typically last?

A well-made cast iron manhole cover can last 50-70 years with proper maintenance. Steel covers generally last 20-30 years, while composite covers can last 25-40 years. The lifespan depends on factors like traffic volume, weather conditions, and how well the cover is maintained.

3. Are all manhole covers the same size?

No, manhole covers come in various sizes to fit different openings. The most common sizes are 22 inches (559mm) and 24 inches (610mm) in diameter. Special sizes are also available for specific applications. The size is determined by the manhole opening it needs to cover.

4. How are manhole covers made to be safe for traffic?

Manhole covers are designed with specific load ratings to ensure safety. They undergo rigorous testing to withstand different traffic loads. The surface is textured to provide traction, and the weight is carefully calculated to prevent movement under heavy vehicles. Regular inspections help maintain safety standards.

5. Can manhole covers be customized?

Yes, manhole covers can be customized with logos, designs, or specific markings. Some cities use artistic designs to make their manhole covers unique. Customization options include embossing, engraving, or special coatings, allowing for both functional and aesthetic customization.