Seiki PT Series – Tapping Centers

High Production Milling & Tapping Center / Graphite Mill

The  Seiki PT-400S is the fastest CNC milling and tapping center in its class and is also well suited to graphite machining as well high speed 3D machining. This machine will exceed the demands of any manufacturer with high volume, high precision machining needs. The compact size consumes very little valuable floor space while the blazing speed will deliver more parts per hour than the competition. The machine is a fixed column / moving table type design.

It features a Meehanite cast iron frame and rigid linear slideways for rigidity and fast, precise movement. The 32mm (1.26”) diameter Z axis ballscrews are class 3 with a double nut pre-loaded design allowing a standard rapid traverse rate of 2362 inches per minute in all 3 axes with industry leading acceleration of 2.0G in the Z axis. The ABS (Absolute Pulse Coder) servo system does not require zero return.  The machine can be started anytime from any position, saving non-productive time.  A standard bed flushing system pushes chips to the rear of the machine.  The optional caterpillar type chip conveyor provides efficient chip removal.

Two types of high speed ATC systems are available. The standard is a 20 tool servo turret type ATC while the a 24 tool twin arm type ATC is optional.  The PT-400S’s standard 20 station turret style servo automatic tool changer provides fast, reliable tool selection.  Complete tool change time is only 1.4 seconds tool to tool and 2.2 seconds chip to chip.  The optional 24 station high speed arm type ATC provides an increase in Z axis travel from 13.8” to 18.9”.  Tool change time is 1.1 seconds and 2 seconds chip to chip. 

The standard spindle is a 7.4 HP 30 min. /  5 HP continuous, 24,000 RPM direct drive spindle that provides rigid tap speeds up to 6,000 RPM.  A spindle chiller is standard.  The BBT-30 (Big Plus dual contact) taper is standard for rigid milling.  Coolant through the spindle preparation is also standard (pump system optional).

The Mitsubishi M80A control is standard and is suitable for a wide range of applications from production to high speed machining applications.  The M80A control features a 10.4” touch screen with intuitive smart phone type operation.  A dedicated CNC CPU provides phenomenal processing speeds.  An all new high response servo system with 1,000,000 pulse encoders is provided for state-of-the-art speed and accuracy. The Mitsubishi control comes with an industry leading 3 year parts and labor warranty!  The Fanuc OiM-F Plus control with 10.4” LCD and 2 year warranty is also available.