Lightweight Manhole Box Systems

Description

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 dissembled 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 User Guide

Lightweight Manhole Box Information Sheet

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
m	m	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.	kN	kg
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