Trench Walers

Trench WalersShore and Pour have added Trench Waler Frames to the product range.

The frames are based on a robust aluminium extrusion available in 2.5m and 3.5m lengths. Three lengths of oversleeve give a strut range of 725mm to 2025mm sheet to sheet.

Features of the system include:-

The struts are extended using a double action pump connected as shown. The double action means that it pumps on both the up and down strokes of the handle for faster extension.

The hydraulic fluid used is a water miscible mineral oil, developed for the coal industry to provide both lubrication and corrosion protection. It is supplied ready to use in the pump and in 5 litre containers.

Shown here is a close up of the connection of the strut and rail with the bridle hose connected. Note that the connector and safety valve must be on the inside of both ends to achieve the maximum clearance between struts.


Trench Waler ConstructionTrench Waler Frame


Below is a table of strut ranges:-


Over-sleeve Clearance between Sheet to sheet Frame Weight (kgs) S.W.L (kN/m)
  rails (mm) dimension (mm) 2.5m 3.5m 2.5m 3.5m
Mini 525 - 1025 725 - 1225 79 101 37.4 28.3
Midi 925 - 1425 1125 - 1625 92 114
Maxi 1325 - 1825 1525 - 2025 100 122


System Components

To Remove the Frame

Re-connect the hoses and apply a pressure of 500 psi. Undo the safety lock valves and exit the trench. Slowly turn the lever on the pump away from the gauge. Pressure will be released and the frame can be withdrawn from the trench. To fully collapse the rams, simply apply pressure to the rail with the hoses still connected. This will return the fluid to the pump.


Download information sheet (PDF)



See also : Trench Sheets, Trench Boxes, Shoring Accessories






Members of the Construction Plant-hire Association


TEL : 01844 353790

FAX : 01844 354830