Closely resembling the M5 but with a fixed spreader the M4 system is an automatic spreader system for one, two or three component adhesives.
The M4 system is an automatic spreader system for one, two or three component adhesives. The machine will automatically apply the adhesive over a programmed surface area meanwhile the operators prepare the next layer or inserts the insulation into the panel as the machine moves down the panel length. M4 is specifically designed for an efficient manufacturing of large sandwich panels and for the right customer the system will enable a substantial increase of productivity.
The M4 machine can service up to two press/lay up tables placed after each other. Each table can extend to 20 meter in length. The spreader unit is a frame rolling above the press table. The machine is designed to be easily integrated with existing press tables (delivery with new press tables is of course possible).
On the spreader unit a trolley carries the adhesive spreader and moves it perpendicular to the length of the table. In the other direction the whole machine unit moves on the table track. The adhesive is applied through the spreader across the width of the panel. Each adhesive component is pumped from an adhesive pump station positioned at the side of the production line. The pumps are air driven pistons and the mixing ratio metering is done by mechanically linked measuring cylinders.
There are two alternatives of adhesive spreaders, steel or plastic. The steel spreader has to be cleaned in a flush station after the work is complete and then the spreader may be used again. The plastic spreader will be thrown away after use.
For a one component adhesive system the spreader is automatically immersed and protected in an oil tray protecting the spreader from contact with the moisture in the surrounding air.
The operator programs the panels surface dimensions into the control system and then jogs the machine to its starting position by guiding a laser marker. When in position the operator presses the start button and the machine applies the adhesive automatically and the operator can prepare the next layer (or insert the insulation/core material) as the machine moves along the track. After the first adhesive layer is complete the process can be mirrored by turning the direction switch. When the work is complete the operator either throws away (plastic spreader) or cleans the spreader (steel spreader). After reassembling the mixer and spreader onto the machine the system is ready for use again.
System principal layout view 1
System principal layout view 2
Mixing ratio – 100:10 to 100:100 (fixed)
Metering technique – Volumetric cylinder, mechanically linked
Mixing technique – Static mixer
Capacity – Up to 8kg/min
Viscosity – Up to 100 000mPas
System pressure maximum – 270 bar
Table length – Up to 20m
Spreader width – Up to 600 mm, cc 10 mm, or 5 mm (as per request)
Nozzle outlet diameter – 1.5, 2.0, 2.5 or 3.0 mm
Machine Dimensions (LxH) – 1.0 x 2.2. Width adjusted to press table width
Net weight – 1000kg
Power electric – E: 400VAC, 3P, 50Hz, 16A
Power pneumatic – P: 6B@1000l/min