Our Services

---

This technique is used when precise circular cuts are needed, to create holes in a range of construction materials, ranging from 10mm to over 1m diameter, by anything up to 20m deep.

A core drill bit consists of a steel tube with diamond segments brazed or laser welded on the drilling end. The core bit is mounted on a rotating shaft of various types of drilling machines. Core drill machines can be operated in either vertical or horizontal direction and can be powered by electric, hydraulic or air-powered sources. Extension equipment and specialist coring barrels can be used to attain greater depths. Auto Feed equipment available to automate the process.

Drilling techniques in reinforced concrete and standard constructions are to be water flush. Water is required to act as both a coolant, maintain cutting efficiency and minimise/suppress dust. Holes in lightweight construction, dry drills can be used with adequate dust extraction facilities.

Track sawing is a method of forming cut lines or openings in floors, walls or soffits. A track is fixed to the wall with Hilti anchors, and a cutting head fitted to the track which carries a circular diamond blade. Cuts can be formed up to 720 mm thick through reinforced concrete. A 415v 3 phase, high-frequency motor is used to drive a diamond blade to form clean and precise cuts in most construction materials. The track is attached to vertical walls, steep inclines or floors where heavier floor saws cannot be used.

The saw components are small and light, making them versatile and manoeuvrable where space is limited, and access is difficult. The saw can be fitted with diamond blades ranging in size from 500 to 1600mm to allow a maximum cut depth of 700mm. Track saws are operated remotely reducing any vibration or noise risks to the operator.

Wire sawing employs the use of an electric drive unit and a series of pulleys to pull a loop of steel wire coated in diamonds through the steel-reinforced concrete, masonry, or metal.

The wire consists of sections of a steel core of strands approx. 6mm. diameter and of almost any length. These sections are joined by screwed sleeves or by crimped connections to form a variable length of wire, depending on the sawing application. The wire has diamond-impregnated beads along its length approximately 30mm apart and 10mm diameter. The beads are separated by small springs, plastic, or rubber, depending upon the type of wire and the manufacturer.

The wire is positioned over the pulleys through pre-drilled holes in the concrete that is being cut and back over the drive pulley. The wire can be of almost any length and is joined by special crimps.

The wire is rotated, held under tension, and pulled through the material being cut. Water must always be used. This machine is remote-controlled by the operator, who should be in a position adequate to view the wire and drive wheel, but not directly in line.

For cutting in situations where there is no access to the rear of the object to be cut, plunge wire  sawing techniques can be employed. 162mm Ø holes are drilled on 1.5 to 2m centres and the plunge pulleys must be set approximately 200-300 below to compensate that the end of the cut always takes the form of an arc.