High-Quality Cast Iron Manhole Cover Round Made from Spheroidal Graphite

Our Cast Iron Manhole Cover Round is made from high-strength, elastic QT500-7 spheroidal graphite cast iron, ensuring long-lasting durability and reliability. Manufactured using ballizing treatment, annealing, and precision casting, this manhole cover delivers superior performance in various municipal, residential, park, parking lot, and roadway applications. Its robust construction provides excellent load-bearing capacity, impact resistance, corrosion protection, anti-theft design, anti-slip surface, and noise reduction.

Product Sizes and Packaging

We offer a wide range of standard sizes and can also customize dimensions according to customer requirements:

This table includes both circular and square options, while ensuring the Cast Iron Manhole Cover Round meets your municipal and industrial infrastructure needs.

Material and Structure

• Material: QT500-7 spheroidal graphite cast iron
• Structure: Integral or divided, equipped with a rubber shock-absorbing ring
• Shape: Circular / Square (Cast Iron Manhole Cover Round included)
• Load-bearing Grades: A15, B125, C250, D400, E600, F900 (customizable upon request)
• Surface Treatment: Asphalt paint or rust-proof paint
• Operating Temperature: -30℃ to +80℃

Performance Features

High Strength and Elasticity

The spherical graphite structure provides superior tensile, bending, and impact resistance compared to ordinary cast iron. This minimizes the risk of fractures and significantly extends service life.

Stable Load-Bearing Capacity

Compliant with municipal road standards, including heavy-traffic areas. The anti-theft locking mechanism requires special tools for opening, effectively preventing unauthorized access and loss.

Anti-slip and Wear-Resistant

The patterned surface ensures excellent grip even in wet conditions, maintaining durability under long-term traffic conditions.

Corrosion and Noise Protection

With a corrosion-resistant surface and built-in noise reduction features, this Cast Iron Manhole Cover Round ensures safety and quiet operation in urban and industrial settings.

Applicable Scenarios

Our Cast Iron Manhole Cover Round is widely used in:

• Urban municipal roads, expressways, and main thoroughfares
• Residential areas, parks, schools, hospitals, and public squares
• Parking lots, gas stations, and industrial parks
• Inspection wells for water supply, drainage, electricity, communication, gas, and heating systems

Why Choose Our Cast Iron Manhole Cover Round?

• Customizable circular and square options for diverse infrastructure needs
• High-strength, durable material with long-term performance
• Anti-slip, wear-resistant, and noise-reducing surface
• Secure anti-theft design to protect public and private assets