Site Equipment can supply Lightweight Manhole Box Systems that can 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.

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.

Lite Manhole Box Summary

 

Plate LengthPlate Height HPipe Clearance Length LCPermissible Earth Pressure
mmmkN/m²
2.002.00 base
1.00 top
1.6034.1
2.502.00 base
1.00 top
2.1030.0
3.002.00 base
1.00 top
2.6025.0
3.502.00 base
1.00 top
3.1018.9
4.002.00 base
1.00 top
3.6023.0

All 2.0m high base boxes have a vertical pipe clearance height (Hc) of 940mm

Lite Manhole Box Weights

Box
Length
Panel
Height
Weight per box
Please refer to the spindle chart below.
mmkg
Type AType BType CType DType EType F
2.00 C2.00 Base
1.00 Top
1063
634
1074
640
1090
648
1100
653
1109
658
1123
665
2.50 D2.00 Base
1.00 Top
1181
690
1192
696
1208
704
1218
709
1227
714
1241
721
3.00 E2.00 Base
1.00 Top
1303
746
1314
752
1330
760
1340
765
1349
770
1363
777
3.50 F2.00 Base
1.00 Top
1649
810
1660
816
1676
824
1686
829
1695
834
1709
841
4.00 F2.00 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.

Lite Manhole Box Spindle Chart

 

Spindle
type
Working width
bC
Excavation
width b
Permissible
axial force
Weight
mmkNkg
min.max.min.max.
A1.331.531.461.6616014.2
B1.511.871.642.0014716.9
C1.852.451.982.5812420.9
D2.302.902.433.0310723.6
E2.683.282.813.419225.8
F3.283.883.414.016929.3

The width of excavation increases by 40mm when 4.0m boxes are employed.

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