Isotop® SD
Steel Spring Vibration Isolators
Design
Isotop® SD steel spring vibration isolators consist of two
metal plates with M 10 internal thread and a cylindrical
screw spring designed according to DIN EN10270-1:
2001. Height adjustment is done via a threaded rod
M 10 with three nuts and three locking washers for level
adjustment and weight distribution. Corrosion protection: Optional corrosion protection, either galvanized
or cataphoresis coated (KTL).
Field of application
Isotop® SD elements have a natural frequency, depending on the load, down to approx. 3.2 Hz and are used for:
— Source isolation of ventilators, fans, extractors, air
conditioners, compressors, emergency power units,
pumps etc.
— Receiver isolation of sensitive electronic assemblies,
measuring equipment, scales, test beds etc.
— Percussion isolation of all sorts of machines.
Isotop® SD, galvanized
Required data for selection
— Total weight to be absorbed
— Number and location of points of support
— Centre of gravity
— Structural shape of the device (dimensions)
— Direction of load
— Lowest disturbing frequency
(rotational speed or number of strokes)
Advantages
— Construction height, diameter and connection
thread are identical for all types, which guarantees
exchangeability.
— As a result of the open construction, the source is
connected to the foundation point only via the spring.
The spring element can oscillate in the horizontal
plane without restriction.
— The spring is clearly visible, which allows checking
of its condition without dismantling. The distance
between spring coils is visible under load.
— Accessories, base plate and height adjustment
are universally applicable for all types.
Isotop® SD, KTL
Our service
Make use of our know-how on questions about vibration
technology. We will gladly consult you and will calculate
tailor-made solutions for vibration isolation.
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1
Isotop® SD
1400
14
1300
SD
4
Recommended max. Delection
1200
13
12
1100
11
1000
10
900
9
8
800
SD
3
700
7
6
600
Recommended
Working Area
5
500
SD 2
400
4
0–
300
N
00
SD 1
9
3
50
320
200
0N
– 57
Natural Frequency
2
0N
0 – 37
20
0N
150 – 22
100
1
0
0
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
Remark: Loads higher than the recommended delection are possible. Please than take
into account that the delection caused by additional dynamic loads has an upper limit.
In such cases please ask Getzner Spring Solutions GmbH.
www.getzner.com
2
33
35
37
39
Deflection in mm
Resonant Frequency in Hz
Load in N
Isotop® SD 1 – SD 4
8000
14
13
7000
SD
9
12
Recommended max. Delection
11
Resonant Frequency in Hz
Load in N
Isotop® SD 5 – SD 9
6000
SD
10
8
9
5000
SD
7
8
4000
7
6
Recommended
Working Area
3000
SD 6
5
00
2000
0
–6
4
N
SD 5
0N
50
20
37
–5
00
28
N
00
–34
1815
1000
3
Natural Frequency
500 N
1130–2
0N
–1
0
72 60
2
1
0
0
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Delection in mm
Remark: Loads higher than the recommended delection are possible. Please than take
into account that the delection caused by additional dynamic loads has an upper limit.
In such cases please ask Getzner Spring Solutions GmbH.
www.getzner.com
3
Selection table
DESCRIPTION
REF. NO., GALVANIZED
REF. NO., KTL (BLACK)
NOMINAL RANGE
MIN./MAX. IN N
SPRING RATE IN N/MM
Isotop® SD 1
45000011
45000001
120 to 200
7.93
Isotop® SD 2
45000012
45000002
195 to 325
12.90
Isotop® SD 3
45000013
45000003
300 to 510
20.16
Isotop® SD 4
45000014
45000004
475 to 800
31.64
Isotop® SD 5
45000015
45000005
720 to 1,250
48.07
Isotop® SD 6
45000016
45000006
1,130 to 1,900
75.56
Isotop® SD 7
45000017
45000007
1,815 to 3,100
121.03
Isotop® SD 8
45000028
45000008
2,800 to 4,200
187.10
Isotop® SD 9
45000029
45000009
3,750 to 5,300
234.30
Horizontal forces must be avoided.
Figure with Footplate FP
D 70
M10
12
120
150
Accessory: Isotop® FP 1–9 Footplate
All data indicated are based upon our current knowledge.
They may be used as calculation and standard values and are subject
to the usual machining tolerances. Subject to change and correction.
AUSTRIA — Bürs GERMANY — Berlin — Munich — Stuttgart FRANCE — Lyon
JAPAN — Tokyo INDIA — Pune CHINA — Beijing USA — Charlotte
4
JORDAN — Amman
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DB Isotop® SD en © Copyright by Getzner Werkstoffe GmbH l 11-2016
We reserve the right to amend the data
95
11
94 ( Height unloaded )
50
Accessory: Isotop® NV 1–9 Adjustment