60
Instruction and maintenance manual
ENGLISH
6
INSTALLATION
6.1 Warnings
Before fitting the magnetic chuck onto the machine
for which it is designed, always perform the follow-
ing operations:
• Verify that the system is installed so that it is pos-
sible to access all components for ordinary and
extraordinary maintenance purposes, remember-
ing to leave the required spaces (approximately 1
m along each side of the system).
• Verify that the lighting of the site of installation
guarantees a perfect view of all the production
cycle from all four sides of the machine.
• Verify that all the main chucks are perfectly aligned
using a spirit level and perform the required ad-
justments by inserting shims under the supporting
points.
The system is designed to work under the following
conditions:
Operating temperature:
-10°C÷+80°C
(14°F÷176°F)
Humidity:
<50% at 40°C (104°F)
6.2 Preparation
• Clean all the parts with a clean and dry cloth in
order to remove the residuals of anti-corrosion
coating.
• Verify that all the mobile parts are correctly posi-
tioned and aligned.
6.3 Mechanical installation
TECNOMAGNETE guarantees, for all the models
described in this manual, a parallelism tolerance
of +/- 0.05/1000 between the magnetic surface
and the resting one on the machine bench (or a
verticalness tolerance for CUBOTEC systems or
for systems used to form MAGNETIC SQUARES).
After completing installation, TECNOMAGNETE
advises to finish the magnetic surface with a
miller fitted with a scraping insert or a grinder.
Customers who decide to install directly the
magnetic system, must specifically refer to the
instructions provided in this manual. If additional
fixing holes are required, always remember to drill
them on the housing that encloses the magnetic
circuit. If necessary, it is also possible to drill on
these surfaces positioning and reference holes
for the parts to machine (the holes on the poles
are provided for this purpose). TECNOMAGNETE
S.p.A. can be contacted at any time for special
requirements concerning the areas that can be
drilled and machined.
The following tables provide the axial pre-charge
value
P
and the corresponding torque values
M
that
have to be applied to the screws used to assemble
the chuck onto the tool machine. The values in the
table apply to screws with hex head type UNI 5737-
65 and to socket head screws type UNI 5931-67.
The friction coefficient was considered equivalent
to 0.14, which is the value that generally applies to
blackened and lubricated surfaces. The torque must
be applied gradually using dynamometric wrench-
es.
Threading
Resistance class = 8.8
P daN
M mdaN
M 12 x 1.75
3780
8.5
M 12 x 1.25
4130
9.6
M 14 x 2
5150
13.5
M 14 x 1.5
5600
14.3
M 16 x 2
7030
20.5
M 16 x 1.5
7480
21.4
M 18 x 2.5
8600
28.3
M 20 x 2.5
11000
40
M 20 x 1.5
12200
43.1
M 22 x 2.5
13600
53.2
M 22 x 1.5
14900
57.1
M 24 x 3
15800
69.1
M 24 x 2
17200
73.1
6.4 Electric connections
All wiring instructions are provided in the operation
and maintenance manual of the controller supplied
with the magnetic chuck. This manual therefore pro-
vides basic information only.
