Size and performance data of vibration damping pad
| Model |
Bearing capacity(kg/cm²) |
Static deformation at vertical rated load(mm) |
Natural frequency at vertical rated load(Hz) |
Vertical limit static load(kg/cm²) |
Working temperature range(℃) |
Damping ratio(C/Cc) |
| WJ-40 |
2～4 |
3kg/cm² h 4.2±0.5 |
13.8±1 |
30 |
-10～+40 |
>0.06 |
| WJ-60 |
4～6 |
5kg/cm² h 4.2±0.5 |
50 |
| WJ-85 |
6～8 |
7kg/cm² h 3.5±0.5 |
17.5±1 |
70 |
| WJ-90 |
8～10 |
9kg/cm² h 3.5±0.5 |
90 |
Selection method of vibration damping pad:
1. The area of a standard vibration damping pad is 24×46=1104cm², and the center area of connecting four convex platforms is 1 cm².
2. The area of vibration damping pad is decided according to the weight and working situation of equipment, it is cut based on a standard cushion block.
Area of vibration damping pad =Equipment weight /The bearing capacity of the selected vibration damping pad
For the equipment with shock and weight increase, the coefficient of overweight should be considered when choosing.
Application instance:
If a kind of equipment weighs 3500kg, the pivot shape is six drawing boards of φ12; because the levelness requirement of this equipment is high, the vibration and weight increase of the equipment at work shall be considered when choosing WJ–85; the weight of the equipment is appropriately increased by about 30% when calculating.
Bearing area = 3500 kg×1.3/7 kg/cm² = 650 cm²
Area of a single support = 650 cm²/6 ≈110 cm²
The vibration damping pad under the support must be exposed by 1cm margin, so the cushion block should be cut into 12×12 cm².
Scope of application:
Used for passive vibration isolation of punching machine, shearing machine, printing machinery and instruments.
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