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The EN124 D400 SMC Composite Round Manhole Cover is a state-of-the-art access solution engineered to replace traditional cast iron and concrete covers. Manufactured from high-performance Sheet Moulding Compound (SMC), it combines exceptional load-bearing capacity (D400, 40-tonne) with significantly reduced weight, offering superior durability, safety, and installation efficiency for modern municipal and utility infrastructure.
Meet the specifications of EN124-D400 loading
Our Third Party Testing Bodies: LLOYDS BRITISH, ICAS, SGS
All Access Covers are manufactured in SMC
No inherent scrap value
Corrosion resistant
Impact and weather resistant
Uniqe multi-directional slip
lightweight meeting Manual Handling Regulations
Municipal Roads & Highways: Ideal for urban streets, pedestrian zones, and parking lots requiring durable, safe, and low-maintenance access points.
Industrial & Utility Plants: Perfect for water, gas, and telecommunications access chambers within industrial complexes and utility corridors.
Airports & Ports: Suitable for heavy-duty applications in airfield aprons, port pavements, and logistics yards where corrosion resistance is critical.
Green Infrastructure & Sustainable Developments: An optimal choice for projects prioritizing long-lifecycle materials, reduced carbon footprint in transport/installation, and enhanced worksite safety.
Avatar SMC Performance index
Anti slip pattern
Avatar cover of composite access covers achieved a market leading Skid Resistance Value of 89
The table below has been developed from data collected by County
Surveyors Society and illustrates the acceptabable parameters when tested using the TRRL Pendulum Test in general accordance with BS667:part 1:1986
This test provides a slip resistance value(SRV) for each surface tested The higher value the greater slip resistance.
TRRL Pengulum Value | Condition Of Surface |
19 and below | Dangerous |
20-39 | Marginal |
40-74 | Satisfactory |
Adove75 | Excelient |
UV resistance test
Table 3-1 Ultravioler Test Conditions Standard Source Duration of Exposure ASTM G154
Table 3-1 Ultraviolet Test Conditions
Standard | Source | Duratlon of Exposure |
ASTM G154a(Cycle 1) | UVA:340nm | 2,160hours |
ASTM G154b(Cycle 1) | Xenon Arc:340nm | 1,000hours |
ASTM G154(Cycle 3)c | UVB:Type313 | 2,160hours |
Results Summary | ||
Average Flexural Strength Before UV aging (MPa) | Average Flexural Strength After UV aging (MPa) | Average Flexural Strength due to UV aging(%) (MPa) |
910 | 820 | 10 |
The loss of flexural strength was measured to be approximately 10%
SMC COMPOSITE ROUND MANHOLE COVER WITH VENT | ||||
CSY3102P | CLEAR OPENING 600mm | 750mmO｜A | 46Kg | D400 |
Optional Extras: Rubber Sealed ｜Security Locking｜8X50mm VENT | ||||
SMC COMPOSITE ROUND MANHOLE COVER HINGED 180 DEGREES | ||||
CSY3702F | CLEAR OPENING600mm | 750mmO｜A | 48Kg | D400 |
Optional Extras: Rubber Sealed ｜Security Locking｜ | ||||
Performance advantages | SMC Manhole cover | Reinforced concrete manhole cover | Cast iron manhole cover |
Design service | >50 | <10 | >30 |
Fire performance | A2 ,non-combustible | A1,Burst in high temperature | A2, non-combustible |
Structural loads | High product structral strength | Low strength,thick product,unable to blend with steel bars | High product structral strength |
Corrosion resistance | Acid and alkali resistance,strong corrosion resistance | Easy corrosion | Easy corrosion |
Weight | Light | Extra heavy | weight |
Install | Simple and convenient | Tired | Tired |
Jump resistance | No bounce | No bounce | Can bounce |
Overhaul | Opening with ease | Difficult to open | Difficult to open |
Broken state | Will not shatter or break | Comminted fracture | Comminted fracture |
Pioneer in SMC Technology & Certification: We are a globally recognized leader in SMC composites, among the first to achieve the latest EN124:2015 certification. Our products are proven to fill market gaps with quality surpassing international peers.
Over Two Decades of Engineering Expertise: With more than 20 years of dedicated R&D and manufacturing experience, we possess deep expertise in SMC material science, mold design, and production process control, ensuring unmatched product consistency.
Comprehensive In-House Testing & Customization: Our custom-built testing equipment allows for dynamic product validation and optimization. We offer extensive customization from a wide range of existing molds and can design according to your specific exhaust flow, security, and dimensional requirements.
Global Project Support: We export worldwide, providing reliable supply and technical support for infrastructure projects demanding certified, high-performance access solutions.
Request a PDF datasheet or consult our engineers for your specific project requirements and customization options.
The EN124 D400 SMC Composite Round Manhole Cover is a state-of-the-art access solution engineered to replace traditional cast iron and concrete covers. Manufactured from high-performance Sheet Moulding Compound (SMC), it combines exceptional load-bearing capacity (D400, 40-tonne) with significantly reduced weight, offering superior durability, safety, and installation efficiency for modern municipal and utility infrastructure.
Meet the specifications of EN124-D400 loading
Our Third Party Testing Bodies: LLOYDS BRITISH, ICAS, SGS
All Access Covers are manufactured in SMC
No inherent scrap value
Corrosion resistant
Impact and weather resistant
Uniqe multi-directional slip
lightweight meeting Manual Handling Regulations
Municipal Roads & Highways: Ideal for urban streets, pedestrian zones, and parking lots requiring durable, safe, and low-maintenance access points.
Industrial & Utility Plants: Perfect for water, gas, and telecommunications access chambers within industrial complexes and utility corridors.
Airports & Ports: Suitable for heavy-duty applications in airfield aprons, port pavements, and logistics yards where corrosion resistance is critical.
Green Infrastructure & Sustainable Developments: An optimal choice for projects prioritizing long-lifecycle materials, reduced carbon footprint in transport/installation, and enhanced worksite safety.
Avatar SMC Performance index
Anti slip pattern
Avatar cover of composite access covers achieved a market leading Skid Resistance Value of 89
The table below has been developed from data collected by County
Surveyors Society and illustrates the acceptabable parameters when tested using the TRRL Pendulum Test in general accordance with BS667:part 1:1986
This test provides a slip resistance value(SRV) for each surface tested The higher value the greater slip resistance.
TRRL Pengulum Value | Condition Of Surface |
19 and below | Dangerous |
20-39 | Marginal |
40-74 | Satisfactory |
Adove75 | Excelient |
UV resistance test
Table 3-1 Ultravioler Test Conditions Standard Source Duration of Exposure ASTM G154
Table 3-1 Ultraviolet Test Conditions
Standard | Source | Duratlon of Exposure |
ASTM G154a(Cycle 1) | UVA:340nm | 2,160hours |
ASTM G154b(Cycle 1) | Xenon Arc:340nm | 1,000hours |
ASTM G154(Cycle 3)c | UVB:Type313 | 2,160hours |
Results Summary | ||
Average Flexural Strength Before UV aging (MPa) | Average Flexural Strength After UV aging (MPa) | Average Flexural Strength due to UV aging(%) (MPa) |
910 | 820 | 10 |
The loss of flexural strength was measured to be approximately 10%
SMC COMPOSITE ROUND MANHOLE COVER WITH VENT | ||||
CSY3102P | CLEAR OPENING 600mm | 750mmO｜A | 46Kg | D400 |
Optional Extras: Rubber Sealed ｜Security Locking｜8X50mm VENT | ||||
SMC COMPOSITE ROUND MANHOLE COVER HINGED 180 DEGREES | ||||
CSY3702F | CLEAR OPENING600mm | 750mmO｜A | 48Kg | D400 |
Optional Extras: Rubber Sealed ｜Security Locking｜ | ||||
Performance advantages | SMC Manhole cover | Reinforced concrete manhole cover | Cast iron manhole cover |
Design service | >50 | <10 | >30 |
Fire performance | A2 ,non-combustible | A1,Burst in high temperature | A2, non-combustible |
Structural loads | High product structral strength | Low strength,thick product,unable to blend with steel bars | High product structral strength |
Corrosion resistance | Acid and alkali resistance,strong corrosion resistance | Easy corrosion | Easy corrosion |
Weight | Light | Extra heavy | weight |
Install | Simple and convenient | Tired | Tired |
Jump resistance | No bounce | No bounce | Can bounce |
Overhaul | Opening with ease | Difficult to open | Difficult to open |
Broken state | Will not shatter or break | Comminted fracture | Comminted fracture |
Pioneer in SMC Technology & Certification: We are a globally recognized leader in SMC composites, among the first to achieve the latest EN124:2015 certification. Our products are proven to fill market gaps with quality surpassing international peers.
Over Two Decades of Engineering Expertise: With more than 20 years of dedicated R&D and manufacturing experience, we possess deep expertise in SMC material science, mold design, and production process control, ensuring unmatched product consistency.
Comprehensive In-House Testing & Customization: Our custom-built testing equipment allows for dynamic product validation and optimization. We offer extensive customization from a wide range of existing molds and can design according to your specific exhaust flow, security, and dimensional requirements.
Global Project Support: We export worldwide, providing reliable supply and technical support for infrastructure projects demanding certified, high-performance access solutions.
Request a PDF datasheet or consult our engineers for your specific project requirements and customization options.
