Holroyd Machine Tools and
Components, a division of
the Precision Technologies
Group (PTG), has sold a
further two TG 350E rotor
grinding machines to a stateowned
Chinese company that
produces screw air
compressors and refrigeration
rotors, in an order worth £2m.

Holroyd’s TG Series rotor
grinding machines provide a
high level of accuracy and
aggressive stock removal
capability. The TG Series can
reduce overall machine
requirements in many
production contexts and
handle different production
rates and accuracies. A touch
screen operating system
provides ease of use and
combines the latest industry
hardware with advanced
application/network systems.

Other recent orders from
China include a 30m x 4m
gantry Crawford Swift
‘Powerstir’ FSW machine,
commissioned from PTG
Heavy Industries in a joint
project with China Friction
Stir Welding Centre. It is used
in the manufacture of railway
car bodies and has proved
such a success that PTG is to
supply three more units.