加工直径： 18米 - 21米
加工高度：3 - 4，25米
one Niles large vertical boring machine with
12000 to 16000mm swing capacity with standard setting, the capacity can be
to 18000 to 21000mm capacity by moving the columns back.
The present work height is 3000 to 4250mm from table to tool, this can also
be increased by inserting extra riser blocks.
The Niles machine is of modern design with anti - friction main table
bearings, (2) table way tracks, 8000mm diameter helical table drive gear
with power clamping, operators console, removable bronze inserts for
saddles, the table load capacity is rated for 200 tons, but will probably
The machine is equipped as follows :-
Table drive motors 300 HP (2)
DC traverse feed motors 20 HP (2)
Ram swivel motors 3 HP (2)
The machine is also equipped with several small clamping and lubricating
All DC motors are powered by a 500 Kw motor generator set, driven by a 750
HP AC motor.
Table diameter 9000mm which can be increased as per notes above.
The machine is also equipped with Octagonal swiveling ram heads with 2600mm
Table speeds are ?to 5.10 RPM, feed rates are 0.81mm to 38.1mm per
The machine is also equipped with a Niles external machining column, giving
horizontal boring mill capacity, this can be mounted on the a floor plate or
on the machine table, and has its own control panel.
The machine was used in nuclear power plant in the USA and was kept in
excellent condition, the machine has been dismantled and is currently stored
in a heated warehouse and is rust proofed.