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Lightweight Manhole Box Systems
A lightweight trench system for when you need additional ground support
- End return panels for extra ground support
- Ideal for installing concrete manholes
- Temporary Works Design available
- Nationwide delivery
- Quick to assemble
Site Equipment Limited hires out Lightweight Manhole Box Systems that help protect workers during the excavation of trenches or installing a concrete manhole. Our manhole boxes can be installed using an excavator via the known dig and push technique.
Unlike trench boxes, manhole boxes incorporate end return panels to provide additional ground support. Manhole boxes can be quickly assembled and disassembled to ensure your site runs efficiently. Temporary works design is also available for this manhole box range.
Check out the images and specifications below or call your nearest Site Equipment depot for more information. Please see our User Guide for detailed installation instructions below.
Hire Lightweight Manhole Box systems
To find out more about hiring (or buying) a lightweight manhole box or any of our other box systems, please contact your nearest depot or call us on 0117 982 8236 to get our latest rates.
Lightweight Manhole Box Summary
| Plate Length L | Plate Height H | Pipe Clearance Length LC | Permissible Earth Pressure |
|---|---|---|---|
| m | m | m | kN/m² |
| 2.00 | 2.00 base 1.00 top | 1.60 | 34.1 |
| 2.50 | 2.00 base 1.00 top | 2.10 | 30.0 |
| 3.00 | 2.00 base 1.00 top | 2.60 | 25.0 |
| 3.50 | 2.00 base 1.00 top | 3.10 | 18.9 |
| 4.00 | 2.00 base 1.00 top | 3.60 | 23.0 |
All 2.0m high base boxes have a vertical pipe clearance height (Hc) of 940mm
Lightweight Manhole Box Weights
| Box Length | Panel Height | Weight per box Please refer to the spindle chart below. | |||||
|---|---|---|---|---|---|---|---|
| m | m | kg | |||||
| Type A | Type B | Type C | Type D | Type E | Type F | ||
| 2.00 C | 2.00 Base 1.00 Top | 1063 634 | 1074 640 | 1090 648 | 1100 653 | 1109 658 | 1123 665 |
| 2.50 D | 2.00 Base 1.00 Top | 1181 690 | 1192 696 | 1208 704 | 1218 709 | 1227 714 | 1241 721 |
| 3.00 E | 2.00 Base 1.00 Top | 1303 746 | 1314 752 | 1330 760 | 1340 765 | 1349 770 | 1363 777 |
| 3.50 F | 2.00 Base 1.00 Top | 1649 810 | 1660 816 | 1676 824 | 1686 829 | 1695 834 | 1709 841 |
| 4.00 F | 2.00 Base 1.00 Top | 1897 1038 | 1908 1078 | 1924 1086 | 1934 1091 | 1943 1096 | 1957 1103 |
The letter indicates the recommended spindle size where a square excavation is required
A forklift/machine must be provided to off load the kit from the delivery vehicle. Alternatively SEL can deliver the equipment on a HIAB vehicle by prior arrangement.
Spindle Chart
| Spindle type | Working width bC | Excavation width b | Permissible axial force | Weight | ||
|---|---|---|---|---|---|---|
| m | m | kN | kg | |||
| min. | max. | min. | max. | |||
| A | 1.33 | 1.53 | 1.46 | 1.66 | 160 | 14.2 |
| B | 1.51 | 1.87 | 1.64 | 2.00 | 147 | 16.9 |
| C | 1.85 | 2.45 | 1.98 | 2.58 | 124 | 20.9 |
| D | 2.30 | 2.90 | 2.43 | 3.03 | 107 | 23.6 |
| E | 2.68 | 3.28 | 2.81 | 3.41 | 92 | 25.8 |
| F | 3.28 | 3.88 | 3.41 | 4.01 | 69 | 29.3 |
The width of excavation increases by 40mm when 4.0m boxes are employed.