Install once and protect, not twice and regret![]() It's a common issue that ironwork intended for vehicles with pneumatic tyres can become damaged by heavy plant during a construction project. Working with customers across the country we have developed a cost effective and easy to use solution to this age old problem. Manhole covers and gully grates are often installed during the early phases of a construction project. During this phase ironwork is exposed to extreme loads from heavy plant including, tracked vehicles, forklift prongs, digger buckets and more. Cover and gratings installed in these situations were never designed to accommodate these scenarios. This can result in premature failure and additional costs in materials and labour to put them right before handover. In addition, gully grates can often become clogged with silt and debris which can cause severe issues for the drainage system and the water course. This can result in high cleaning and maintenance costs, residual issues from long-term debris ingress and potentially significant fines. Armadillo is tough...
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Stock code | Description | My Wrekin | ||
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ARMMSHELL/6060 | Armadillo manhole cover protector shell 615mm x 615mm (compatible with Tristar and Highway D400 600mm x 600mm manhole covers) | |
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ARMMSHELL/6767 | Armadillo manhole cover protector shell 690mm x 690mm (compatible with Tristar and Highway D400 675mm x 675mm manhole covers) | |

Product spotlight

Save with Armadillo Protector Shells
Using our Armadillo manhole cover protector shells can save you time and money. You no longer need to rip out and replace your existing ironwork due to premature failure.
Thanks to our handy calculator you can discover an estimation of how much time and money you can save!
How can Armadillo protector shells help me?
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Asset owners
Ironwork is protected from traffic and related defects, including cracking. This ensures ironwork can start its service life as new. Armadillo can also remove the potential for debris in the drainage system.
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Groundworkers
Fully compatible with ClickLift, allowing manhole covers to be installed flush with the road surface and raised at a later date saving time and money.
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House builders / developers
Armadillo can prevent debris from entering the chamber and drainage system at the manhole cover.
Environmental, sustainability and Health and Safety benefits due to reduced remedial works, damaged products and the prevention of silt and pollutants in the drainage system. -
General public
Armadillo prevents damage from being caused to resident's cars and in combination with ClickLift minimises the inconvenience of road closures
Armadillo can be made bespoke for your business, including a range of colours and logo additions. Find out more
Other products in the Armadillo range

Armadillo Gully Grate Protector Shells
A reusable shell which is easy to install with Tristar gully grates and is installed proud of the binding layer.

Armadillo Silt Shield
A fully retrofittable, robust, and environmentally friendly option for construction sites. This system effectively traps silt and debris before they can enter the drainage network, ensuring compliance with environmental regulations and mitigating the risk of blockages and associated flooding.
More available accessories
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Armadillo
Protects your ironwork during the construction phase, ensuring manhole covers and gully grates are ready to start their service life in as new condition.
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Chamber Access
From robust chamber step irons suitable for concrete and brickwork applications to innovative composite modular ladders that offer flexibility and longevity.
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Clicklift
Provides housing developers and contractors with huge savings in terms of time, money and hassle. Allowing whole estates to have their manhole covers raised to the final surfacing level, in as little as a few hours.
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Flood and Odour Control Plate
Design to be fitted to our ductile iron access cover and frames, the flood and odour control plate provides resistance to egress of chamber odours and flood water ingress.
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Gritblocker
An anti-blockage keyway insert that simply fits into the manhole cover keyway, reducing the risk of debris from blocking the opening while allowing a lifting key to be inserted.
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H2GO Gully Chute Connector
The H2GO gully chute connector is designed to fix below a grating or kerb type gully unit with a primary catchment chamber and spigot outlet for onward pipe connection. These are ideal where gully grates are offset to gully pots, or where direct surface run off is required.
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Lifting keys
Our range of lifting keys provides safe and secure lifting to our entire range of access covers, including ductile iron, steel and aluminium.
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Reducer ring
Provide a second line of defence against chambers being accessed by unauthorised people or potential falls if accidentally left uncovered.
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Screwlift
Our rapid manhole frame levelling system and is suitable for use with nearly all of our D400 and E600 manhole covers and gully grates.
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Seal plates
Seal plates are a retrofit solution for Unite manhole covers, designed to prevent surface water run off from entering the chamber (compatible with Unite codes ending /KUE).
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Unipak®
A BBA HAPAS approved ironwork installation system that is designed to reduce risk of bedding failure, one of the main factors contributing to premature failure of chamber tops.

Promoting responsibility with Britain's waterways
The Sea Starts Here
We're promoting awareness of a simple but important issue on our most popular Tristar D400 gully gratings. Did you know that waste disposed of down gullies, whether at a roadside or pedestrianised area, can end up in the watercourse. This includes rivers, brooks, becks, ditches, leats and culverts. Ultimately, it has the potential to reach the sea, meaning the sea often really does start here.
In collaboration with a long-standing house building client, we've taken the notable step to include "The Sea Starts Here" as a message on our highest selling Tristar gully gratings. The message serves as a poignant reminder that our actions on land reverberate to our oceans.

Contact us
Whether you are looking for live project support, or are in the initial stages of specification, we are always on hand and happy to help.