Plunge Wire Sawing

Plunge sawing is particularly effective in situations where access is restricted or space is limited. It operates by running a diamond-beaded, multi-stranded wire through a system of pulleys and drive wheels, allowing cuts to be made from a single side of the structure.

Procedure:

• Preparation:
Core holes are drilled into the slab to provide access for the saw.

• Sawing Process:
The diamond wire is then fed through the drilled holes, guided by pulleys and drive wheels to make precise cuts between the access points (see schematic below).

• Plunge saws are capable of cutting through a variety of materials, including mass concrete, reinforced concrete, steel, copper, and various types of stone, at different thicknesses.

  
  

Advantages:

• Water-Cooled Operation: Keeps the cutting process efficient and prevents overheating.

• No Vibration or Dust: Ensures a clean, dust-free work environment with no risk of flying debris.

• Smooth Finish: The method leaves an exposed surface that is smooth and free of damage.

This technique is ideal for projects that demand precision and minimal disruption.

The video below demonstrates how Gnat UK deployed the procedure on a recent project

To isolate key sections of the building's foundation from the Party Wall, we utilised our HILTI plunge saws. These were precisely configured to cut the sides and bottom to the specified widths and depths. This ensured the redundant sections could be easily and cleanly lifted and removed, leaving the area fully prepared for the installation of new piles.