ST 420

Overview

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 ST 420 Standard Vertical Log Stacking

ST 420 "Standard" Vertical Log Stacker

The ST 420, the most sold vertical log stacker, is the perfect log stacking solution for high speed / high pagination presses. With its undisputed reliability and the unbeaten ease of operation it is perfectly suited for the integration into highly automated post press systems, especially behind presses with multiple deliveries. Clearly vertical advantages like the secure handling of flimsy tabloids, 3-side open products and cold set products (e.g. directories) are combined with unique configuration capabilities where 2 or 4 stackers can be monitored simultaneously.

Features:

• Infeed with divert gate, stream gapping device, stream aligners and squeeze rollers
• Laser counter for the exact copy counting
• Adjustable belt positions for a perfect stream control in the stacking area
• Floating head with closed loop control for a perfectly controlled stacking process
• Self-adjusting descend speed for a controlled and nearly pressure free log building process
• Automatic endboard loader
• Automatic compression and strapping station
• Motor-driven rollers for log transfer to the tilt table
• PLC control system with graphical operator interface

Options:

• Second strapping station
• ZMR-software for short run book presses
• Interface for PL 86, PL 86 DUAL log palletizers and for RS 400 robotic palletizers

Technical Data

Technical Data

	200 - 500 mm (7.9" - 19.7")
	120 - 315 mm (4.7" - 12.4")
	up to 100.000 cph
	ST 420/100: 600 - 1000mm (23.6" - 39.4") ST 420/120: 800 - 1200mm (31.5" - 47.2")

Applications