Sprimag's Flat Silkscreen Coating Machine - Sprimatic Rs 700

The Concept :
Continuous printing with rotary silkscreen cylinder

The Purpose :
To print faster, be versatile in accommodating different materials and workpiece carriers (sheet, roller), achieve maximum numbers of impressions from one silkscreen and to being able to use existing pre-pressing equipment.

The Patented Idea :
To fit the silkscreen with tensioning and sealing rails, and with a register locating rail, so that it is removable.

Throughputs of 10,000 parts / hour are possible. With this Sprimatic rotary silkscreen printing system, there is no movement in the opposite direction. There is also no interval between the individual impressions. The important increase in speed is made possible by the continuous movement.

Impressively Versatile

The Sprimatic system was conceived as a modular design for versatility. The feed system can accommodate many different materials with heights up to 100 mm. An endless blanket of precise thickness was selected. It can stand up to both the solvents used in silkscreen printing and the effect of UV radiation. Vacuum is applied to the blanket so that the objects to be printed will be held and then transported through the machine securely.

SPRIMATIC RS 700 - The patented solution

The aim was to print as many impressions with one silkscreen as possible. The cylindrical arrangement operates with almost zero distance to the silkscreen. The steel weave and low stress on the screen combine to provide a long working life, ensuring accurate register and precision. Existing pre-pressing equipment for flat silkscreen printing can generally be used. The silkscreen is fitted with lateral tensioning and sealing profile rails and, in the transverse direction, with register locating rails.

The Printing Head

The printing head can be extracted to the side for problem-free exchange of the silkscreen. The silkscreen and the squeegee are driven in synchronisation by servo motors mounted on both sides. The squeegee movement and the print setting are motorised. The ink feed incorporates an automatic filling level monitor on the squeegee and controls the ink volume for the silkscreen.

The Feed System

The material is fed by means of a printing blanket to which vacuum is applied. The printing blanket is of a precise thickness, UV radiation resistant, and with anti-static properties.

The Dryer

This consists of a cool radiation curing system. The radiation is generated by means of gas discharge lamps in the low power range.

The Machine Control System

The machine is controlled with the aid of a self explanatory touch panel on which all functions can be set. The control employs a virtual axis for synchronisation and communication is via 'Profibus' or fibre-optics. The Siemens S 7 - 300 system is used.

Technical Data

SPRIMATIC RS 700 with integrated Low Power UV Dryer. Mirus Feeder HL 2, Mirus Destacker S/N II

  Total line SPRIMATIC RS 700
Length : 7350 mm 2780 mm
Width : 2100 mm 1780 mm
Height : 2200 mm 2200 mm
Material pass line height : 1115 mm
Impression area, max. : 1010 mm x 710 mm
Material thickness with in and outfeeder : 2 mm
Material thickness without feeder : 100 mm
Drying zone, 4 radiators : 1200 mm
Drying width : 1040 mm
Power required, drying : 8 KW
Power required, machine : 10 KW
Power required, infeed : 5,5 KW
Power required, outfeed : 3,5 KW
Voltage : 400 V, 3-phase, 50 Hz. With Neutral + Earth