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.
  • 540 Legs, being constructed from high strength aluminium alloy, weigh only 35kg making them ideal for use with utility companies. 

 

Specification

Leg ref.

External Working Range (m)

Leg Weight (kg)

Beam Width (mm)

540A*

1.5 - 2.4

35

120

400S

1.2 - 1.6

53

120

400M

1.8 - 2.7

93

120

A

1.7 - 2.4

70

140

B

2.2 - 3.0

95

140