Cylinder Presses

Cylinder Drive Principles
As early as 1957, SPS® REHMUS launched the first screen printing presses based on The Original SPS® STOP Cylinder Principle^TM.
The STOP cylinder (holding the substrate) is put in rotation only in the printing phase of the cycle. It remains stationary during the sheet alignment time – with the sheet approaching the lay stops under the flooded screen.		This STOP cylinder drive principle – invented and introduced by SPS® – guarantees the most exact repetition in register. No bouncing back or pushing-in of sheets occurs. The conditions for sheet alignment remain unchanged over the full speed range of the press. Accuracy is as good as ± 0,03 mm (± 0,0012”) – from 400 to 4.200 impressions per hour. The most accurate and the fastest, the smallest and the biggest STOP cylinder press: all show the original SPS® brand.
*In 2001, the CyberPress* CP machinery, based on the alternative swing cylinder drive concept, was integrated in the SPS® product family.**
The alternative swing concept used in the CyberPress CP cylinder presses is the most economical solution for more standardized volume - driven applications.		Here, cylinder and screen are synchronized in an alternating movement – reciprocating between the flood and print strokes. Today, numerous solid and robust CyberPress CP machines stand the test in many areas of the world. Like the SPS® STOP cylinders, they are equipped with advanced electronic controls and with the characteristic self-adjusting squeegee system.

Squeegee Bridge Technology

Another unique design feature of all SPS® STOP cylinders: the heavy-duty PEH squeegee bridge (pat. pend.).

SPS® squeegee technology ensures perfect control in the third dimension of the printed image, providing an extremely uniform layer of ink or varnish from print start to stroke end. The combined pneumatic-hydraulic actuation leads to a likewise smooth and positive movement, electronically fine tuned to the cylinder rotation.

Once set to requirement, squeegee pressure is automatically kept constant – floating in a fluctuating cushion. The adjustable set point easily adepts to different job profiles with varying gripper margins. Combination with high-tech squeegee profiles - C105™- results in perfect image resolution.