Single Acting Manhole Brace

About Single Acting Manhole Brace

The Single Acting Manhole Brace range consists of a series of non-modular, (single piece) hydraulically adjustable legs which are connected together to support square or rectangular excavation sizes ranging from 1.15m to 3.0m.

The range consists of 5 individual legs, each incorporating a single acting hydraulic ram unit that provides on-site length adjustment in each leg. Note: these legs are relatively light duty in terms of load capacity and the single acting hydraulics necessitate manual retraction after pressure release. 

Benefits

  • Relatively lightweight - can be used with small excavators.
  • Simple and quick to assemble on site.
  • Ideal for light to medium duty applications in 4-sided excavations.
  • Single acting hydraulics requires only a single hose connection. Hydraulic isolation valve is available on some models to prevent fluid loss on de-pressurisation.
  • Simple to install and remove 

 

Specification

Leg ref.

External Working Range (m)

Leg Weight (kg)

Beam Width (mm)

Internal Range (m)

Min                    Max

540A*

1.5 - 2.4

35

120

1.26 2.16

400S

1.15 - 1.6

53

120

0.91 1.36

400M

1.74 - 2.75

93

120

1.5 2.51

A

1.7 - 2.4

70

140

1.46 2.16

B

2.2 - 3.0

95

140

1.96 2.76