at
at1

AT

The AT type mounts can be used to great advantage for the vibration isolation of : engines, piston compressors, presses, electric transformers, mobile units, machines, on concrete buttresses, etc.

Product Description

AT type anti vibration mounts are specifically designed to provide isolation for medium to high frequency applications. The rubber section is fully bonded to two concentric tubular parts. The inner metal is a plain tube design. The outer metal part is also mainly tubular but has a manufactured flanged effect at one end with a variation in the number of holes for attachment to it’s support depending upon the size of mount.

AT type mounts have a radial to axial stiffness ratio of 4 : 1 thus providing good horizontal stability. They are manufactured in three rubber hardnesses to facilitate the selection of the most suitable mount , Soft: A 45, Medium: B 60 and Hard: C75.

at-mount-drawings

Type

A(mm)

B(mm)

C(mm)

D(mm)

E(mm)

F(mm)

G(mm)

H(mm)

I(mm)

J(mm)

K(mm)

L(mm)

M

Weight(gr)

FIG.

Load (kg)

Shore

Code

AT 000

25

11

3

6,5

6,4

20

4

19

3,2

8

3

6

45 Sh

132171

8

60 Sh

132172

10

75 Sh

132173

AT 00

36

28

12,5

11,5

8,2

26

12

26

5,2

39

3

20

45 Sh

132101

30

60 Sh

132102

40

75 Sh

132103

AT 01

48

40

18

18

12,1

37,5

8

138

1

50

45 Sh

65

60 Sh

80

75 Sh

AT 02

48

51

24

18

12,1

37,6

8

144

1

65

45 Sh

132104

85

60 Sh

132105

110

75 Sh

132106

AT 10

60

47

18

19

12,2

49

11

69

8,2

73

250

4

70

45 Sh

132175

100

60 Sh

132176

120

75 Sh

132177

AT 11

60

60

30,5

19

12,2

49

11

69

8,2

73

250

4

85

45 Sh

132107

120

60 Sh

132108

150

75 Sh

132109

AT 20

71

55

27,5

19

18,3

55,7

10

344

1

100

45 Sh

132110

150

60 Sh

132111

180

75 Sh

132112

AT 21 round

70

70

38,5

20,7

18,3

55,7

10

80

8,5

86

437

1

135

45 Sh

132113

190

60 Sh

132114

250

75 Sh

132115

AT 21 lugs

70

70

38,5

20,7

18,3

55,7

10

80

8,5

86

437

4

135

45 Sh

132116

190

60 Sh

132117

250

75 Sh

132118

AT 30

91

75

29

28

20,2

65

16

78

8,5

522

2

175

45 Sh

132119

240

60 Sh

132131

300

75 Sh

132132

AT 31 round

90

95

47

28

20,2

65

16

95

8,5

775

1

250

45 Sh

132133

350

60 Sh

132134

420

75 Sh

132135

AT 31 lugs

90

95

47

28

20,2

65

16

95

8,5

107

780

4

250

45 Sh

132136

350

60 Sh

132137

420

75 Sh

132138

AT 40 round

100

90

42

28

22,2

74

18

100

8,5

112

789

1

225

45 Sh

132139

320

60 Sh

132140

380

75 Sh

132141

AT 40 lugs

100

90

42

28

22,2

74

18

100

8,5

112

3

96.9

102.9

895

4

225

45 Sh

132142

320

60 Sh

132143

380

75 Sh

132144

AT 41 round

100

110

49

28

22,2

74

18

100

8,5

112

895

1

250

45 Sh

132145

360

60 Sh

132146

480

75 Sh

132147

AT 41 lugs

100

110

49

28

22,2

74

18

100

8,5

112

900

4

250

45 Sh

132148

360

60 Sh

132149

480

75 Sh

132161

AT 50

120

100

47

33

40,2

86

20

114

8,5

1305

4

325

45 Sh

440

60 Sh

550

75 Sh

AT 51

120

120

63

53

40,2

86

20

104

10,5

1494

2

400

45 Sh

440

60 Sh

670

75 Sh

AT 70 lower

163,5

97

36

43,5

60,2

118

22

145

10,5

3124

2

450

45 Sh

132162

600

60 Sh

132163

800

75 Sh

132164

AT 70

163,5

140

66

46

60,2

118

22

145

10,5

3124

2

700

45 Sh

132165

900

60 Sh

132166

1100

75 Sh

132167

AT 71

163,5

170

96

46

60,2

118

22

145

10,5

3790

2

850

45 Sh

132168

1100

60 Sh

132169

1400

75 Sh

132170

AT 80

230

167

95

53

80

170

30

204

12,2

7096

2

1250

45 Sh

1800

60 Sh

2300

75 Sh

AT 81

230

185

113

53

80

170

30

204

12,2

7702

2

1600

45 Sh

2100

60 Sh

2600

75 Sh

Additional Information

Operation & Assembly

The AT type design uses the rubber in shear mode and ,to ensure optimum operation and life expectancy , it is recommended that a suitable washer design is used at each end to provide a progressive stiffness effect under load for the top section and rebound control in the case of overload conditions. When used with top and bottom washers as recommended the installations are then “Fail Safe” when bolted to the suspended equipment.

Advantages

• Robust design, strong metal parts.
• Easily installed to support structures, 3 hole or 4 hole attachment depending upon size selected.

Tech sheet

AT type mounts