Shock and Vibration absorbing Machine Mountshigh degree of isolation – tearproof – absorption of solid-borne noiseShock and Vibration absorbing Machine MountsROSTA Anti-vibration Mounts

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Vibration-freeinstallationsof motor test arrangements, compressors, etc.

long lastingmaintenance-freeabsorbing solid-borne noise

ROSTA Anti- vibration Mountshighly elastical and fully tearproof vibration dampers based on torsional rubber pivots

Tearproofsuspensionsof hangingloads like cranerunways, cablecar cabines, etc.

N

ESL

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Shock absorbing levelling feetfor machine mounting

Wide range of standardizedmounts, for load capacities of 45 –4500 lb

Impact-proofsuspensions of transfer cradles offering conveyor-belt protection

ROSTA Anti- vibration Mountshighly elastical and fully tearproof vibration dampers based on torsional rubber pivots

V

NENE

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Selection table for Anti-vibration MountsType Description Details Illustration

ESL

Anti-vibration Mounts for the absorption of tensile, pressure and shear load. Also ideal for wall and ceiling installations.8 load sizes from 45 lb to 4271 lb per mount.Natural frequency between 3,5 – 8 Hz. Mounts are mainly used for overcriti-cal machine installations (machine frequency > mount frequency).

Pages3.8 –3.9

AWI

Anti-vibration Mounts for the absorption of tensile and pressure load. 7 load sizes from 40 lb to 3597 lb per mount.Natural frequency between 3 – 7 Hz. Mounts are mainly used for overcritical machine installations (machine frequency > mount frequency).

Pages3.10 –3.11

V

Anti-vibration Mounts for the absorption of tensile, pressure and shear load. Also ideal for wall and ceiling installations. 6 load sizes from 67 lb to 2698 lb per mount. Natural frequency between 10 – 30 Hz. Mounts can be used for subcritical ma chine installations (machine frequency < mount frequency).

Pages3.12 –3.13

N

Mounting Feets consisting of insulating plate, glued-on top cover with built-in level-ling jackscrew with spherical joint for compensation of up to 5° of fl oor uneven-ness. Insulating plate oil- and acid-proof. 3 load sizes from 337 lb to 4496 lb per mount. Natural frequency between 19 – 25 Hz.

Page3.14

NOX

Mounting Feets consisting of insulating plate, stainless steel glued-on top cover with built-in stainless levelling jackscrew with spherical joint for compensation of up to 5° of fl oor unevenness. Insulating plate oil- and acid-proof. 2 load sizes from 1124 lb to 4496 lb per mount. Natural frequency between 19 – 22 Hz.

Page3.14

Base plate PAccessories: For all N and NOX mounting feet light metal cast base plates are available for the compensation of possible shear loads and/or for the positio-ning of the installation on the fl oor.

Page3.14

NE

Adhesive cushioning plates made of closed-cell polyether urethane, no water absorption and good oil resistance. 3 load sizes from 112 lb to 29’225 lb per mount. Natural frequency between 14 – 25 Hz.

Page3.15

Further information to customized elements and installation examples as from page 3.16.

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Technology Anti-vibration Mounts

The vibration technology basically differentiates between two principal types of oscillation appearances (fig. 1 ). Sinusoi-dal oscillations of working equipments are usually amortised in an overcritical installation manner, shocks and impacts in a subcritical mounting manner.

Manufacturers and suppliers of anti-vibration mounts usually offer different types of machine mount with varying natural frequencies to meet the required detuning between the excitation frequency of the machine and the natural frequency of the anti-vibration mount.

Oscillations

Shocks

W

Frequency Proportion l (fig. 2 )l > √2: Overcritical efficient vibration isolation, clearly definable effec-

tiveness, also efficient solid-borne noise absorption

l = 1: Resonance field uncontrolled swing-up, in the long term destructive

for machine and mounts

l < 1: Subcritical vibration isolation not definable, isolation results

have to be measured out (before and after mount installation).

1

Overcritical installations (l >√2) On overcritical installations the natural frequency of the mounts should show at least a detuning factor of 1:1,414 in regard to the excitation frequency of the machine. Usually, very efficient anti-vibration mounts feature a deep deflection capability offe-ring a low natural frequency. Most of the gen erators, compres-sors, blowers and chargers are, therefore, in overcritical man-ner installed on relatively “soft” mounts. The resulting detu-ning proportion provides information about the expected isolation-effectiveness in % of the machine suspension. The adjacent chart (fig. 3 ) and the calculation formula (fig. 4 ) inform about the resulting vibration isolation in %.

2

3

1. Isolation of Oscillations and Shocks

0.2

1 2 3 4 5√2

0.4

0.6

0.8

1

2

(20%)

(40%)

(60%)

(80%)

unterkritischesGebiet

überkritischesGebiet

D = 1.0

D = 0.25

D = 0

Isolierbereich

Reso

nanz

Dämpfung

Tran

smiss

ibili

ty V

= tra

nsm

itted

pow

erex

cite

d po

wer

Frequency proportion l = Excitation frequency (machine)Natural frequency (damper)

Frequency proportion l

Isolation range

Damping

functionfunctionovercriticalsubcritical

Reso

nanc

e

Vibration isolation W[%]

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Acoustic isolation, Steel 1 : 1related to steel: Bronze 1 : 1.3 Cork 1 : 400 Rubber 1 : 800 Air 1 : 90 000

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Diagram of the vibration isolation W [%]

ns = Revolution exciter (machine)

fe = Natural frequency damper

Vibration isolation

fens

90 %

92 %

94 %

95 %

96 %

97 %

98 %

99 %

W = 100 – 100

2 – 1

ns

60 · f e ( )Iso

latio

n < 8

5 %

4

Resonance field (l = 1) At equal values of the excitation frequency and the mount natural frequency an uncontrollable swing-up of machine and damper occurs. In the long run, this appearance will be destructive for machine and mount (fig. 2 ).

Subcritical installations (l < 1) On subcritical installations (fig. 2 ) an anti-vibration mount with high mechanical stiffness and only small deflection be-haviours should be chosen, e. g. ROSTA V mounts (high machine stability on mounts). In spite of the fact that the degree of isolation is not definable, this suspension effi-ciently absorbs shocks and impacts generated by rela-tively slow turning machines like e. g. mixers, crushers (cone-crushers), punching presses, sheet iron shears, etc. On subcritical installations the degree of isolation is not definable. Isolation results have to be measured out (before and after mount installation).

2. Solid-borne Noise IsolationWhereas the isolation of mechanically generated oscilla-tions and shocks are determined and dissipated by means of the aforementioned vibration dampening theory, the solid-borne noise isolation is subject to the technolo-gy of wave mechanics. The dampening effect is related to the proportion of the relevant acoustic resistance (acoustic resistance or wave resistance = acoustic velocity x materi-al density). The adjacent chart (fig. 5 ) shows some com-parative values of the resulting isolation proportions. Gen-erally, using a rubber-steel composite mount, an ideal iso-lation result of the solid-borne noise can be expected – through the entire frequency range.

5

[ % ]

[ rpm ]

[ Hz ]

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3. Active and Passive IsolationActive or direct isolation (fig. 6 ) means the direct ab-sorption of oscillations, vibrations and shocks of a running ma-chine by anti-vibration mounts, i. e. to prevent directly the transfer of the numerous machine vibrations into the substruc-ture, basis frame and entire building. For the anti-vibration mount selection the knowledge of the interfering frequency (disturbance frequency), the stiffness of the machine structure and its gravity center as well as of the specific ma-chine location in the building is required. Active isolations are usually overcritical machine installations on anti-vibration mounts (e. g. on ROSTA ESL mounts).

Passive or protective isolation (fig. 7 ) means to install a protective barrier between all kind of existing vibrations and shocks occurring in a factory or workshop towards sensitive installations like e. g. weighing and measuring instruments, laboratory equipment or electronic control units. The vibration technological situations usually vary in each case and are re-lated to environmental situations, too. Often shocks and im-pacts come from outside, e. g. from motorways, railways, building sites or tooling machines, like punching presses, etc. Generally, the sensitive equipments shall be protected by in-stalling them on rather “soft” anti-vibration mounts, e. g. ROSTA ESL or AB-D mounts absorbing most of these environmental impacts. It is frequently recommendable to consult also an en-gineering company having the tools and instruments to anal-yse the specific vibration appearances.

Protective suspension mounts for e.g. tooling machines are usually rather “hard” and show only little deflection under load. Too soft tooling machine mounts could actuate bending of the machine base what would influence negatively the pre-cision of the work piece machining. Therefore, mounting feet for tooling machines are often consisting of hard rubber cush-ions deflecting only a few millimetres under load, but “shield” all combined vibration and shock appearances from the sensi-tive precision machine. Transmitted shocks and vibrations could affect the clean surface finishing of the work piece. Of course, in the interest of the fully horizontal positioning of the tooling machines, these anti-vibration mounts have to dispose of a levelling jackscrew with spherical joint for the compensa-tion of the possible floor unevenness (e. g. ROSTA N or NOX mounts).

Active isolation6

Passive isolation7

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These types can be combined with one another (identical heights and operation behaviour)

* compression load Gmax. and fi nal cold fl ow compensation (after approx. 1 year).

Guidelines concerning customized mounts and examples as from page 3.16.

D E

BK

H

xL

J

A

N

F

C

M

xL

J

A

ED

K B

H

N

FO

P

C

M

as from ESL 50

up to ESL 45

Art. No. Type

LoadGmin. – Gmax.[lb] on Z-axis

Aun-

loaded

A*max.load B C D E øF H J K L M N

Weight[lb]

05 021 001 ESL 15 45 – 124 2.13 1.69 3.35 1.93 0.39 2.56 0.28 3.58 0.08 0.22 1.00 1.57 2.30 0.88

05 021 002 ESL 18 101 – 281 2.56 2.01 4.13 2.36 0.49 3.15 0.37 4.37 0.10 0.22 1.22 1.97 2.72 1.32

05 021 003 ESL 27 157 – 450 3.46 2.68 5.51 2.80 0.59 4.33 0.45 5.83 0.12 0.31 1.73 2.36 3.36 2.8705 021 004 ESL 38 292 – 854 4.61 3.58 6.89 3.86 0.69 5.51 0.55 7.17 0.16 0.28 2.36 3.15 4.61 7.5005 021 005 ESL 45 495 – 1349 5.63 4.33 8.66 4.72 0.98 6.69 0.71 9.25 0.20 0.59 2.87 3.94 5.43 11.68

05 021 016 ESL 50 899 – 2473 6.69 5.43 9.25 5.59 0.98 7.28 0.71 9.61 0.24 0.35 3.07 4.72 6.38 23.81

05 021 017 ESL 50-1.6 1236 – 3372 6.69 5.43 9.25 7.32 0.98 7.28 0.71 9.61 0.31 0.35 3.07 6.30 8.11 33.95

05 021 018 ESL 50-2 1574 – 4271 6.69 5.43 9.25 8.90 0.98 7.28 0.71 9.61 0.31 0.35 3.07 7.87 9.69 39.24

Art. No. Type

Natural frequencyGmin. – Gmax.

[Hz] O Px

max.Material structure

(zinc-plated screws)

05 021 001 ESL 15 8.2 – 5.8 - - 0.06

Light metal profi les, steel brackets,

ROSTA blue painted

05 021 002 ESL 18 7.5 – 5.0 - - 0.07

05 021 003 ESL 27 6.2 – 4.5 - - 0.11

05 021 004 ESL 38 5.5 – 4.0 - - 0.14

05 021 005 ESL 45 5.0 – 3.5 - - 0.17

05 021 016 ESL 50 5.0 – 3.5 0.53 3.54 0.39 Light metal profi les, cast housings, steel brackets,

ROSTA blue painted

05 021 017 ESL 50-1.6 5.0 – 3.5 0.53 3.54 0.39

05 021 018 ESL 50-2 5.0 – 3.5 0.53 3.54 0.39

Anti-vibration MountsType ESL

The max. load on X-axis should not ex-ceed 200 % of the Z-axis capacity.

The max. load on Y-axis should not ex-ceed 20 % of the Z-axis capacity.

Applicable on tensile, pressure and shear load.

Z

X

Y

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Anti-vibration MountsType ESL

Deflection curves and cold flow behaviourThe below mentioned deflection values are comprising the ini-tial cold flow, occurring after a few hours of operation.The final cold flow (after one year) is usually s x 1.09.The mentioned deflection values are not suitable for type test-ing. Please consult also our tolerance data in the general cata-logue, chapter “Technology“.

ApplicationsFor active and passive isolation of vibrations and maximum damping of solid-borne noise transmission in weighbridges and scales, measuring systems, control equipment, rotary ma-chinery such as compressors, refrigerating systems, blowers, pumps, mills, mixers, shock-absorbent buffers, etc.

Installation guidelinesThe ESL elements must generally be installed in the same direction.

Wall mounting(Mounting direction should be complied)

Dynamic forces lateralDynamic forces longitudinal

Ope

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0 50

100 150 200 250 300 350 400 450 500 550

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

G [lb]

s [in]

ESL 18

ESL 15

ESL 27

0 200 400 600 800

1000 1200 1400 1600

0.2

0.4

0.6

0.8

1.0

1.2

1.4

G [lb]

s [in]

ESL 38

ESL 45

0 500

1000 1500 2000 2500 3000 3500 4000 4500 5000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

G [lb]

s [in]

ESL 50-1.6

ESL 50

ESL 50-2

0 200 400 600 800

1000 1200 1400 1600

0.2

0.4

0.6

0.8

1.0

1.2

1.4

G [lb]

s [in]

ESL 38

ESL 45

0 500

1000 1500 2000 2500 3000 3500 4000 4500 5000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

G [lb]

s [in]

ESL 50-1.6

ESL 50

ESL 50-2

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The elements can be combined with one another (identical heights and operation behaviour)

* compression load Gmax. and fi nal cold fl ow compensation (after approx. 1 year).

Art. No. Type

LoadGmin. – Gmax.

[lb]

Aun-

loaded

A*max.load B C D E F H K L M N

Weight[lb]

05 111 101 AWI 15R40 – 90 2.68 2.17 0.89 1.77 0.28x0.39 1.97 2.56 0.12 0.39 1.57 2.05 – 0.44

05 121 101 AWI 15L05 111 102 AWI 18R

79 – 191 3.46 2.76 1.18 2.36 0.35x0.59 2.36 3.15 0.14 0.55 1.97 2.64 – 1.9805 121 102 AWI 18L05 111 103 AWI 27R

146 – 337 4.37 3.58 1.38 2.76 0.43x0.79 3.15 4.13 0.18 0.67 2.36 3.15 – 4.1905 121 103 AWI 27L05 111 104 AWI 38R

270 – 674 5.91 4.80 1.87 3.74 0.51x0.79 3.94 4.92 0.24 0.83 3.15 4.09 1.57 9.9205 121 104 AWI 38L05 111 105 AWI 45R

450 – 1079 6.97 5.71 2.17 4.33 0.51x1.02 4.53 5.71 0.31 1.10 3.94 5.20 2.28 17.205 121 105 AWI 45L05 111 106 AWI 50R

899 – 2158 7.64 6.26 2.36 4.72 0.67x1.06 5.12 6.69 0.47 1.57 4.72 6.50 2.36 28.2205 121 106 AWI 50L05 111 108 AWI 50-2R

1484 – 3597 7.64 6.26 2.36 4.72 0.67x1.06 5.12 6.69 0.47 1.77 7.87 9.84 2.76 44.7505 121 108 AWI 50-2L

Art. No. Type

Natural frequencyGmin. – Gmax.

[Hz]x

max.Material structure

05 111 101 AWI 15R7.2 – 4.5 0.55

Stainless steel casting

GX5CrNi19-10 (1.4308)

05 121 101 AWI 15L05 111 102 AWI 18R

6.5 – 3.7 0.7505 121 102 AWI 18L05 111 103 AWI 27R

6.0 – 3.7 0.8705 121 103 AWI 27L05 111 104 AWI 38R

5.2 – 3.2 1.2205 121 104 AWI 38L05 111 105 AWI 45R

5.0 – 2.8 1.3805 121 105 AWI 45L05 111 106 AWI 50R

4.8 – 2.8 1.5005 121 106 AWI 50L05 111 108 AWI 50-2R

4.8 – 2.8 1.5005 121 108 AWI 50-2L

Type AWI R

Type AWI L

size 38 to 50

H

F

A

C

B

Z E

D

KML

K

M

LN

MLKN

MLK

NN

LKM

xB

C

A

HD

EF

size 15 to 27

LKM

xB

C

A

HD

EF

G

LKM

xB

C

A

HD

EF

size 50-2

H

F

A

CB

Z E

D

KML

K

M

LN

MLKN

MLK

NN

Anti-vibration MountsType AWI

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

new

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Type AWI R Type AWI L

Anti-vibration MountsType AWI

Deflection curves and cold flow behaviourThe below mentioned deflection values are comprising the ini-tial cold flow, occurring after a few hours of operation.The final cold flow (after one year) is usually s x 1.09.The mentioned deflection values are not suitable for type test-ing. Please consult also our tolerance data in the general cata-logue, chapter “Technology“.

0

50

100

150

200

250

300

350

400

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

G [lb]

s [in]

AWI 18R/L

AWI 15R/L

AWI 27R/L

0

200

400

600

800

1000

1200

1400

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4G [lb]

s [in]

AWI 38R/L

AWI 45R/L

0

500

1000

1500

2000

2500

3000

3500

4000

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

G [lb]

s [in]

AWI 50R/L

AWI 50-2R/L

Installation guidelinesThe AWI elements must generally be installed in the same direction.

Dynamic forces lateralDynamic forces longitudinal

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Anti-vibration MountsType V

Further information to customized elements and installation examples as from page 3.16.

J

KH

A

E

B

F

C

N

M L

E

B

HK

A

J C

N

212

262

LM

18x30

up to V 45

V 50

Art. No. Type

LoadGmin. – Gmax. [lb] on X- and Z-axis A B C E øF H øJ K L M N

Weight[lb]

05 011 001 V 15 67 – 180 1.93 3.15 2.01 2.17 0.37 0.12 0.79 0.39 1.57 M10 2.32 0.66

05 011 002 V 18 135 – 360 2.60 3.94 2.44 2.95 0.37 0.14 1.18 0.51 1.97 M10 2.91 1.54

05 011 003 V 27 292 – 674 3.31 5.12 2.87 3.94 0.45 0.16 1.57 0.57 2.36 M12 3.35 2.8705 011 024 V 38 585 – 1124 4.13 6.10 3.94 4.72 0.55 0.20 1.77 0.69 3.15 M16 4.61 5.9505 011 005 V 45 1012 – 1798 5.00 7.48 4.80 5.51 0.71 0.24 2.36 0.89 3.94 M20 5.83 10.1405 011 006 V 50 1349 – 2698 5.91 5.51 5.91 3.94 - 0.39 2.76 0.98 4.72 M20 7.64 16.53

Art. No. Type

Natural frequencyGmin. – Gmax.

[Hz]Material structure

(zinc-plated screws)

05 011 001 V 15 30 – 23

Light metal profi les, welded steel housings, ROSTA blue painted

05 011 002 V 18 25 – 15

05 011 003 V 27 28 – 20

05 011 024 V 38 14 – 12

05 011 005 V 45 15 – 12

05 011 006 V 50 12 – 10

* Alternativ mounting position 180° turned.

The max. load on Y-axis should not exceed 20 % of the X- resp. Z-axis capacity.

Momentary shock loads of 2.5 g in X- and Z-axis admissible.

Applicable on tensile, pressure and shear load.

*0.71x1.18

8.35

10.31

Z

X

Y

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Anti-vibration MountsType V

Deflection curvesThe mentioned deflection values are not suitable for type test-ing. Please consult also our tolerance data in the general cata-logue, chapter “Technology”.

ApplicationsFor active and passive isolation of vibrations and damping of solid-borne noise transmission in crushing plants, compressors, blowers, pumps, rotary converters, generators, mills, crane track supports, etc.

Installation guidelines 45° diagonal configuration by rotary motions. Reduced load capacities.

e. g. mixer, crusher installationDynamic forces lateralDynamic forces longitudinal

Ope

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0 100 200 300 400 500 600 700 800

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

G [lb]

s [in]

V 18 V 15

V 27

0

500

1000

1500

2000

2500

3000

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

G [lb]

s [in]

V 38

V 45

V 50

0 100 200 300 400 500 600 700 800

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

G [lb]

s [in]

V 18 V 15

V 27

0

500

1000

1500

2000

2500

3000

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

G [lb]

s [in]

V 38

V 45

V 50

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For further information to customized elements and installation examples as from page 3.16.

SW

C

L

A

D

` 5°

I L

F

K

E

G

H

Mounting Feet

Art. No. Type

LoadGmin. – Gmax.

[lb]

Natural frequencyGmin. – Gmax.

[Hz] øA C D L SWWeight

[lb]Material structure

(rubber pad NBR with 50 ShA)

05 058 001 N 80 M12 337 – 1349 25 – 22 3.15 2.17 M12 3.94 0.39 0.66 zinced, cover blue painted

05 058 002 N 80 M161124 – 2698 22 – 19 3.15 5.35 M16 7.17 0.51 1.10

zinced, cover blue painted

05 058 102 NOX 80 M16 stainless steel 1.4301 and 1.4305

05 058 004 N 120 M202248 – 4496 22 – 19 4.72 5.47 M20 7.68 0.63 2.20

zinced, cover blue painted

05 058 103 NOX 120 M20 stainless steel 1.4301 and 1.4305

Art. No. Type Accessory to øE F G H I øK LWeight

[lb] Material structure

05 060 101 P 80 N / NOX 80 3.15 3.62 4.33 5.51 0.16 0.47 0.20 0.22Light metal cast

05 060 102 P 120 N / NOX 120 4.72 5.31 6.69 8.27 0.20 0.63 0.28 0.66

Base plate P

N and NOX

Options by high volume supplies– other thread sizes and lengths– higher load capacities– other painting– imprint of company logo

ApplicationsFor the isolation of vibrations and solid-borne noise, also for machinery and apparatus requiring levelling, such as air conditioning plants, woodworking machinery, pumps, tanks, containers, transport systems, tooling machines, assembly lines and workshop equipment.

Type N Type NOX

Accessory: Base plate P

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Art. No. Type

LoadGmin. – Gmax.

[lb]

Defl ectionGmin. – Gmax.

[in]

Natural frequencyGmin. – Gmax.

[Hz] Material structureA BWeight

[lb]

05 100 901 NE 50-12 112 – 337

0.02 – 0.06 25 – 14

1.97 0.49 0.04 – Polyether-Urethane closed-cell– No water absorption– Good oil-resistance

– Working temperature –22° to +158°F

05 100 902 NE 80-12 337 – 1012 3.15 0.49 0.13

05 100 903 NE 400-12 9892 – 29’225 15.75 0.49 3.31

Options on request:– Adhesive layer– Different length and width, maximum dimensions are

4.9 × 16.4 ft– Material thickness of 0.31, 0.49 and 0.98 in; multiple

thickness 1.48 and 1.97 in.

ApplicationsFor extremely tight installation situations, damping of vibrations and solid-borne noise, air conditioning units, heating boilers, pumps, offi ce machines, laboratory equipment, wood working machines and workshop equipment, etc.

NoticeTolerances according ISO3302-1:1999 class L3 and EC3. The defl ection of the cushioning plates by the mentioned max. catalogue load capacities is 0.06 in.

Maximum load of dampers with 0.49 in height

Anti-vibration MountsType NE

new

new

new

A

A

B

02000400060008000

1000012000140001600018000200002200024000260002800030000

0 2 4 6 8 10 12 14 16 18

Maxim

umloa

dcap

acity

G max

.per

Moun

t[lb]

Square side length [in]

NE80

-12

NE50

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ROSTA Anti-vibration Mounts type ESL as impact absorbing suspensions of transfer stations in belt conveyor systems in belt conveyor systems

Weightbiggest Height of fall [in]lump [lb] 39 59 79 98 118 138 157 177 197 217 236 256 276 295 315 335 354 374 394

11 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 422 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 444 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 666 4 4 4 4 4 6 6 6 6 6 6 6 6 6 8 8 8 8 888 4 4 4 4 6 6 6 6 6 6 8 8 8 8 6 6 6 6 6110 4 4 4 6 6 6 6 6 8 8 8 6 6 6 6 6 6 8 8132 4 4 6 6 6 6 8 8 8 6 6 6 6 6 8 8 8 8 8154 4 6 6 6 6 8 8 6 6 6 6 13 8 8 8 8 8 8 8176 4 6 6 6 8 8 6 6 6 6 8 8 8 8 8 8 8 8 8198 4 6 6 6 8 6 6 6 6 8 8 8 8 8 8 8 8 8 8220 4 6 6 8 8 6 6 6 8 8 8 8 8 8 8 8 8 8 8243 6 6 6 8 6 6 6 8 8 8 8 8 8 8 8 8 8 10 10265 6 6 8 8 6 6 8 8 8 8 8 8 8 8 8 10 10 10 10287 6 6 8 6 6 13 8 8 8 8 8 8 8 8 10 10 10 10 12309 6 6 8 6 6 8 8 8 8 8 8 8 8 10 10 10 10 12 12331 6 6 8 6 6 8 8 8 8 8 8 8 10 10 10 12 12 12 12441 6 8 6 8 8 8 8 8 8 10 10 12 12 12 14 14 16 16 16661 8 6 8 8 8 10 10 12 12 14 16 16882 6 8 8 8 10 12 14 16 161102 8 8 8 10 12 14 16

ESL 50 553 lb ftESL 50-1.6 738 lb ftESL 50-2 922 lb ft

Table: Size and quantity of ESL for the absorption of the occuring kinetic energy

Max. absorption of energy per ESLESL 38 184 lb ftESL 45 277 lb ft

At the transfer stations of large belt conveyor systems for the pit and quarry industries, some belt damages may occur on the next downstream conveyor generated by the high impact force of falling sharp-edged mineral lumps. Furthermore, the continuously undamped material impacts of sharp and abra-sive mineral lumps cause a high material wear on the very expensive belts, shortening considerably their lifetime.

Transfer or impact stations equipped with ROSTA anti-vibra-tion mounts type ESL offer an effective absorption of the occur-ring kinetic energy of falling lumps with their progressive defl ection characteristics. The belt surface is protected from scissures and high abrasion wear. Please ask for our specifi c information manual “Impact Beds” and “Elastic Garland Suspensions”.

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ROSTA Anti-vibration Mounts as customized system elements

Cost optimized anti-vibration mount type V 18 for large series applicationPre-investment study for a high volume need of anti-vibrati-on mounts type V 18. The housing of the mount is planned as “endless” light metal extrusion profi le, cut in required element lengths.

Cab assembly suspension on all-wheel crane truckTearproof low frequency suspension of the driver’s cab on an off-road crane truck. These specifi c crane trucks are planned for the employment in pathless areas for the pipe-line emplacement. The elastic suspensions of the driver’s cab shall offer a high comfort at road transfer of the ve-hicle – and should offer a very high side stability while off-road acting without indefi nable “fl oatage” of the cab. Cab suspension with four ESL 50 mounts and customized brackets.

Tearproof mounting of wind genera-tors on anti-vibration mounts type V 45Tearproof installation of wind generators on high steel girder masts and building roofs. On the one hand the an-ti-vibration mounts type V 45 avoid the transmission of vibrations and solid-borne noise from the wind generator on the building or structure, on the other hand the abso-lutely tearproof suspensions offer safe stability at strong wind emergence. lutely tearproof suspensions offer safe stability at strong wind emergence.

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Applications!A few examples:

Changes regarding contents reserved.Any reprint, also in extracts, requires our explicit and confi rmed approval.

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ROSTA USA Corp.797 Ferguson Dr.Benton Harbor, MI 49022Toll-free: 888-506-1634Phone: 269-841-5448Fax: 269-924-0952E-Mail: info@rosta.comInternet: www.rosta.us