Specialized Services

Our machines follow a reference plane electronically. Utilising the strength of the item being
machined for support, we are able to minimise the structual strength and weight of our equipment.
This eliminates the need for self-supporting rigid portable machines that require considerable
time and engineering effort to install.

Circular Machines 5ft 7in to 30 ft (1.7m to 9m) diameter

Each of these machines consists of a milling head, mounted in a rigid box fitted
with wheels and connected to a central pivot system point mounted on the
fabrication being machined. A ground datum ring is mounted concentrically to
the central pivot and set parallel to the desired machining plane by a variety
of means, but typically by a clocking arm mounted on the central pivot.

A control circuit utilises electronic followers that are mounted on the machine
structure to register on the datum ring and control the wheel height such that
the rigid box with milling cutter rotates parallel to the datum ring. The wheels
will thus rise and fall to compensate for irregularities on the surface being

Rectangular or Irregular shared surfaces up to 38ft x 38ft(11.5m x 11.5m)

A scanning laser is used to scan across the work piece and is set parallel
to the desired machining plane. The milling machines consists of two fixed
beds, which straddle the work piece. A cross bed can be driven along the
two fixed beds. The milling head, located on saddle plate, can travel along
the cross bed. This allow the milling cutter to be moved to any location on
X-Y axis over the work piece.The milling head is fitted with targets and
servo drives. The target interface with the scanning laser beam and a
control circuit adjusts the servo drives to maintain the milling cutter
parallel to the laser plane regardless of the errors which affect the
saddle plate position.The large sizes involved would normally require
very heavy beams to minimise deflection with the thermal errors still
remaining. By following a laser plane, our design eliminates all thermal
effects and the need for massive structures. This also allows for large
area coverage in a single set up.The same scanning laser can also be used
to monitor cuts and carry out surveys during and after the machining operations.