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Frequently Asked Questions<br />
<strong>OTS</strong><br />
Substrate clamping without compromise<br />
Q: What does <strong>OTS</strong> stand for?<br />
A: <strong>OTS</strong> stands for Over Top<br />
Snuggers.<br />
Q: What are the principle<br />
benefits of <strong>OTS</strong>?<br />
A: 1. High quality printing close<br />
to board edge: Board is pulled<br />
down flat so good vacuum<br />
tooling contact; clamps are then<br />
pulled away from board top<br />
surface to allow close to edge<br />
printing.<br />
2. System automatically adjusts<br />
for variations in board thickness,<br />
so no setup is required for<br />
product thickness.<br />
3. System automatically adjusts<br />
for out-of-parallel board<br />
providing secure substrate<br />
location.<br />
Q: What does <strong>OTS</strong> do?<br />
A: The clamp unit is a complex<br />
device that clamps the board<br />
flat then snugs the board. The<br />
clamps then withdraw from the<br />
board top face and come to rest<br />
such that the top face of the<br />
clamp is flush with the board<br />
top face.<br />
Q: What advantages has <strong>OTS</strong><br />
over Edge Clamp Tooling?<br />
A: 1. <strong>OTS</strong> has automatic<br />
compliant clamps to provide<br />
secure clamp for out-of-parallel<br />
board edges.<br />
2. <strong>OTS</strong> automatically adjusts for<br />
product thickness. This means<br />
no setup required between<br />
production batches or runs.<br />
3. This also offers improved<br />
print quality at the board edge<br />
due to automatic compensation<br />
for small variations between<br />
boards of the same batch.<br />
4. Since <strong>OTS</strong> pulls the board<br />
flat, the optimal location with<br />
the vacuum tooling offers<br />
improved print performance.<br />
Q: What advantages has <strong>OTS</strong><br />
over Foiless Clamps?<br />
A: 1. <strong>OTS</strong> incorporates snugger<br />
(Edge Clamping) function with<br />
compliant clamps to provide<br />
secure clamp for out-of-parallel<br />
board edges.<br />
2. <strong>OTS</strong> automatically adjusts for<br />
product thickness. This means<br />
no setup required between<br />
production batches or runs.<br />
3. This also offers improved<br />
print quality at the board edge<br />
due to automatic compensation<br />
for small variations between<br />
boards of the same batch.<br />
4. Since <strong>OTS</strong> pulls the board<br />
flat, the optimal location with<br />
the vacuum tooling offers<br />
improved print performance.<br />
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Q: What are the benefits of<br />
this production release of <strong>OTS</strong><br />
over pre-production releases?<br />
A: 1. Single block construction<br />
integrates 16 pneumatic<br />
cylinders and 6 precision guides<br />
ensure reliability of the unit and<br />
makes service less time<br />
consuming.<br />
2. Articulated compliant<br />
snugging plate ensures reliable<br />
board snug.<br />
3. Articulated compliant top<br />
plate ensures good paste roll<br />
in the print limit.<br />
4. Quick set levelling allows the<br />
unit to be accurately set parallel<br />
to the table thus ensuring no<br />
deviation in print quality.<br />
<strong>FAQ</strong>/DEK1732-04/EUR/02<br />
Knowhow... Know DEK<br />
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Q: How have the features of<br />
<strong>OTS</strong> evolved to offer process<br />
advantages o ver existing<br />
clamp types?<br />
Clamp System Feature Foil Clamps<br />
Q: What is the difference<br />
between manual O TS and<br />
software controlled O TS?<br />
A: Manual <strong>OTS</strong><br />
Uses manually adjusted valves<br />
to set the clamp pressure and<br />
the snug pressure. These valves<br />
are accessible behind the cover<br />
in the same location as the<br />
“Board Clamp Regulator”. These<br />
pressures will need to be set up<br />
with every product change over.<br />
Software Controlled O TS<br />
Uses software controlled valves<br />
to set the clamp pressure and<br />
the snug pressure. The settings<br />
for these valves is accessible<br />
via the touch screen display. The<br />
pressure setting is saved in the<br />
product file, so the pressures<br />
only need to be adjusted for the<br />
first setup. Future runs of the<br />
same product file will use the<br />
same pressure settings.<br />
Q: Can <strong>OTS</strong> be used with<br />
Grid-Lok ® ?<br />
A: Yes, <strong>OTS</strong> can be used with all<br />
types of tooling; there is no<br />
impact on the tooling.<br />
ASIA: Singapore: +65 6484 7010, China: +86 755 2759 9188, Malaysia: +604 644 2177, Taiwan: +886 3313 8155, India: +91 984 0386 452<br />
EUROPE: Northern Europe: +44 1305 760760, Western Europe: +49 6101 5227-0, Central Europe: +36 96 512 100, Benelux: +31 499 573 55412 100<br />
AMERICAS: Central: +1 847 368 1155, Eastern: +1 908 797 9368<br />
Foiless<br />
Clamps<br />
Snugger <strong>OTS</strong><br />
Side Snugging of board ˚ ˚ <br />
Automatic adjust for<br />
product thickness<br />
Board pulled flat<br />
to tooling<br />
Articulated Compliant<br />
Snugger<br />
Printing at the edge<br />
of the board<br />
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Q: What impact does O TS have<br />
on Dual Lane machines?<br />
A: The <strong>OTS</strong> system occupies<br />
space behind the printing rail.<br />
This means that all <strong>OTS</strong> Dual<br />
Lane systems will have 72.5mm<br />
dead space between the board<br />
edges. This is identical to the<br />
current RTC specification, but is<br />
larger than the standard rail<br />
specification.<br />
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Knowhow... Know DEK<br />
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