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A ground support system for forming a concrete manhole.
The Conquip Manhole Box is a simple to assemble, two sided trench lining support system designed to be installed by an excavator using the ‘dig and push’ technique, or by simply carrying out the excavation and then lowering each box into place.
The manhole boxes are available in a range of sizes: 2.5m, 3.5m and 4.0m external length. It is generally suitable for trench depths of up to 5.18m.
| ITEM | PRODUCT CODE | HEIGHT | EXTERNAL LENGTH | INTERNAL LENGTH | WORKING WIDTH (Min - Max) |
MAXIMUM WEIGHT* | LIMIT STATE DESIGN LOAD |
| Base Box 2500 | TL103-00011 | 2560mm | 2500mm | 2180mm | 1565-3465mm | 2766kg | 80.96kN/m² |
| Extension Box 2500 | TL103-00012 | 1310mm | 2500mm | 2180mm | 1565-3465mm | 1592kg | 80.96kN/m² |
| Base Box 3500 | TL103-00007 | 2560mm | 3500mm | 3180mm | 1565-3465mm | 3266kg | 57.83kN/m² |
| Extension Box 3500 | TL103-00008 | 1310mm | 3500mm | 3180mm | 1565-3465mm | 1872kg | 57.83kN/m² |
| Base Box 4000 | TL103-00009 | 2560mm | 4000mm | 3680mm | 2070-3470mm | 3516kg | 45.43kN/m² |
| Extension Box 4000 | TL103-00010 | 1310mm | 4000mm | 3680mm | 2070-3470mm | 1972kg | 45.43kN/m² |
*Weight will be equal to or less than the weight stated depending on your strut configuration. Our team will provide more information on trench widths or working widths depending on requirements specified in your quote request.
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