NEXUS
SMC Composite Covers

Round Manhole Cover

Heavy-duty solutions compatible with EN124:2015 | ASTM | AS standards.

MR & SR Series

22 catalogue sizes

C/O = clear opening. Covers and frames are moulded in SMC composite; load classes per EN124:2015.

Product CodeC/O (O)Cover Size (D)Frame Size (F)Load ClassWeight
MR300AΦ264Φ300x20Φ386x35A3.5 kg
MR500AΦ450Φ500x30Φ595x50A12.0 kg
MR500BΦ450Φ500x30Φ595x50B12.5 kg
MR500CΦ450Φ500x50Φ595x70C22.5 kg
MR600AΦ550Φ600x30Φ705x50A16.6 kg
MR600BΦ550Φ600x30Φ705x50B19.9 kg
MR600CΦ550Φ600x50Φ705x70C26.9 kg
MR600DΦ550Φ600x50Φ705x70D32.5 kg
MR650DΦ600Φ650x40Φ785x100D48.0 kg
MR700AΦ650Φ700x30Φ795x50A18.5 kg
MR700BΦ650Φ700x50Φ795x75B32.5 kg
MR700CΦ650Φ700x50Φ795x75C38.5 kg
MR700DΦ650Φ700x50Φ795x75D50.5 kg
MR900DΦ790Φ900x70Φ1065x113D96.0 kg
MR690AΦ600Φ690x50Φ805x100A30.8 kg
MR690CΦ600Φ690x50Φ805x100C46.0 kg
MR690DΦ600Φ690x50Φ805x100D53.0 kg
MR750CΦ700Φ750x50Φ910x75C53.5 kg
MR750DΦ700Φ750x50Φ910x100D66.0 kg
SR690AΦ600Φ690x50850x850x100A33.4 kg
SR690CΦ600Φ690x50850x850x100C50.3 kg
SR690DΦ600Φ690x50850x850x100D56.5 kg

SR series: round cover in a square 850x850x100 frame.

SMC round manhole cover photoSMC round manhole cover photoSMC round manhole cover photoSMC round manhole cover photo
Key Advantages

Why SMC composite

01

High strength & load capacity

Engineered to handle heavy loads and impact, maintaining structural integrity under high pressure for heavy vehicle traffic.

02

Corrosion resistance

Highly resistant to corrosion, rust and chemical attack - ideal where covers face harsh weather, chemicals and salts.

03

Lightweight & easy handling

Lighter than cast iron or concrete, which simplifies handling and installation and reduces injury risk on site.

All eight advantages   EN124 load class guide