NEWS

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  How to Choose the Right Manhole Cover Load Class for Different Projects

  You must pick the right manhole cover for safety. Every project needs a different load class. If the cover is weak, it will break. If it is too strong, it will cost too much money. Quick Guide: Load Classes (EN 124) The EN 124 rule groups covers by their strength. Use this table to find yours: ...

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  Understanding EN124 Standards: The Ultimate Guide for Infrastructure Projects

  The EN 124 standard is the European benchmark used globally to classify manhole covers and gully gratings based on their load-bearing capacity and installation location. Selecting the wrong class can lead to structural failure, vehicle damage, or serious injury. 1. The EN 124 Load Class Hierarch...

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  Smart Manhole Covers & Advanced Materials: Transforming Urban Infrastructure in 2026

  Manhole covers, a critical yet often overlooked component of urban infrastructure, are undergoing a technological revolution. Driven by global demands for safety, sustainability, and smart city development, 2026 has witnessed breakthroughs in manhole cover materials, intelligent functions, and co...

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  A rolling scaffold cannot exceed

  The height limitations for using rolling scaffolds are primarily based on the following standards. Specific height restrictions Independent Use Height 1. The independent erection height of mobile scaffolding (such as portal frame or wheeled mobile scaffolding) should generally not exceed 6 m...

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  Why Ductile Iron Manhole Covers Meeting BS EN124 Standards Dominate Global Construction

  The reason why ductile iron manhole covers that comply with BS EN124 standards dominate in global construction and municipal engineering is not accidental, but because they have successfully combined "technical standards", "safety guarantees", "international mutual recognition" and "excellent per...

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  What is the 3 to 1 rule for scaffolding?

  The 3:1 height-to-width ratio safety rule in scaffolding construction is a core safety principle that ensures the stability of freestanding scaffolding and prevents it from tipping over. This rule is widely followed in construction projects both domestically and internationally. 1. Core Definiti...

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  Classification of scaffolding fasteners

  Fasteners are the core components of the coupler-type steel pipe scaffolding (also known as the predecessor of "traditional scaffolding" or "bowl-buckle scaffolding"). Their quality and correct use are directly related to the safety of the entire scaffolding. 1. Classification by function and pu...

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  What are manhole covers called now?

  The same logic also applies to the structure below the manhole cover: The traditional term 'manhole cover' is still widely used and understood. However, in the industry and formal settings, the increasingly accepted modern terms are "manhole covers" or "municipal utility manhole covers". ...

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  What are scaffolders

  History of scaffolding The history of scaffolding can be traced back to ancient Egypt, Greece and Rome, when people used wood and ropes to build simple scaffolding to build large buildings such as pyramids and temples. For example, the construction of the pyramids of Giza in Egypt may have rel...

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  How much to rent scaffolding

  The cost to rent scaffolding depends on several factors, including the type of scaffolding, rental duration, height required, location, and additional accessories. Below are general pricing estimates for scaffolding rentals in the U.S., UK, and other regions: 1. Scaffolding Rental Costs (Appro...

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  Where to buy manhole covers

  Purchasing manhole covers can be done through various channels, depending on your specific needs (such as material, specifications, quantity, usage, etc.). The following are common purchasing methods and precautions: 1. Online procurement platform (1) B2B e-commerce platform Alibaba（1688....

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  How much do manhole covers weigh​?

  The weight of manhole covers varies significantly based on material, size, and load-bearing capacity. Here’s a detailed breakdown: 1. By Material (1) Cast Iron (Most Common) Gray Iron (HT): Light-duty: 50–80 kg (e.g., 600mm diameter, 10–15 ton capacity). Heavy-duty: 90–120 kg (e.g....

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