| Aluminium Tubular Frames |
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| Frame for high dimensional stability and close tolerance printing. |
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| Frame Profiles : |
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| Slope |
1.75" / 1.4" x 1.5" |
2" / 1.5" x 1.5" |
| Slope [For Large Format] |
4.0" / 3.6" x 2.0" |
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| General Guidelines for Ordering : |
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Specify outside dimensions while ordering.
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For selection of frame size, calculate the print area. Add Min 6" all over (i.e. Total 12") + the Frames Profile e.g. if Print Area is 12" x 12" & Frame Profile selected is
2.0" X 1.55" then the outer dimension of frame will be 28" x28" OD.
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| Cast Aluminum Frame as per Customer Drawing / Specifications : |
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- For Printing thick Film/Hybrid Circuit/Solder Paste etc.
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| Price Variation : The above price are as per primar producers existing price list. If any changes are made the same will be applicable at the time of dispatch and are subject to change without notice. |
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Grafica Flextronics introduces for the first time a unique aluminum frame profile which allows screen printers to overcome the problem of higher off-contact on our Screen Printing Machines.
As usual the frame is rested on top of the frame holder as shown in Fig-1. Normally the frame holder ranges from 3~5 mm thick to have good stability. Also one has to ensure that the frame holder should not bang with the vacuum bed, hence some gap is kept which further increases the off-contact distance between the substrate and the fabric. In this case the off-contact ranges from 4.0 ~ 6.5 mm minimum. If one uses metalized polyester or high-tension screens than off-contact of 2 - 3 mm is impossible. It is also difficult to maintain minimum off-contact distance when printing smaller substrates on large presses. As in case of sun-board, sun-pack and acrylic of 1.5 ~ 3.0 mm thick high off-contact is automatically avoided due to material thickness but not in case of paper or thin materials.
In some case even other screen printing machine manufactures design the equipment where the maximum recommended frame size is bigger than the vaccum bed so that minimum off-contact can be maintained and the frame holder do not bang the vacuum bed. But for this reason it becomes difficult for the operator to slide the off contact sliding scale to adjust the off-contact distance between the frame and the substrate.
Considering all the above factors this aluminum profile has been designed extensively for our screen printing machines only where there are three advantages for the screen printers. |
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Slot provided in the aluminum section so that the frame can be pushed in the frame holder easily (see Fig-2). As all our new machines are now designed with
front loading option where it also reduces job change over time.
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Minimum off-contact is possible as we use the slot to rest the frame (see Fig-2). Hence no obstruction from the bottom which causes higher off-contact.
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We Provide vaccum bed size same as per recommended maximum frame size so that sliding the off-contact adjustment scale becomes more convenient.
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