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Bilz Vibration Technology, Inc.

Telephone (440) 735-3072                                                                                                                                                             5353 Majestic Parkway-Unit A

Fax (216) 274-9198                                                                                                                                                                     Bedford, OH, USA 44146-1756

After hours: 440-478-3456                                                                                                                                                                  E-mail: info@bilz-usa.com

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Isolated Foundation catalog pages 30

                                Isolation pad sets

Isolation pad sets

By using multiple layers of isolating pads is it possible to reach a very low natural frequency which enhances the isolation in comparison with single isolating pads. In particular these sets of pads are ideal for big machines and vibration isolation foundations. Even with a long lasting dynamic load, the high developed material holds its isolation properties. BILZ Isolation pads are resistant against oils, fats, coolant, acids, bases and cleaners.

The allowable load of a set of pads with 500x500 mm is 2.5-20 tons.  BILZ can deliver the pad sets in sizes up to 1000 x 500 mm base. BILZ can create a custom pad set using other combinations of isolation pads to fine tune the isolation properties. Your local BILZ representative can meet with you to discuss your application in detail.

1 Foundation (side wall)

2 Mineral fibers and cover plates (lost formwork)

3 Foundation block

4 PVC film cover

5 Mineral fibres and cover plates (lost formwork)

6 BILZ isolation pads

7 Foundation (base)

BILZ isolating pads are ideally suited for vibration suppression of foundations and base plates 

The main purpose of the foundation is to stabilize the machine as well as to increase the moment of inertia. The foundation thus positively influences machine vibration by reducing the amplitude of oscillation.  It is wrong, however, to assume that any foundation large enough would eliminate all vibration problems. It is important that as much information as possible be supplied regarding the machine to be isolated, this will include machine size and weights, any dynamic features of its operation, location including ground type, condition where optimal performance is required and a vibration analysis of the machine and site conditions. A correct isolation between machine foundation and the surrounding area will result in trouble free operation.  As a result of years of experience we have the necessary experience in this field. At your request we can offer all other related services including measuring of vibrations, planning and construction design. 

Application example in the plant of a major automobile manufacturer.  

Passive isolation protection of a Waldrich-Coburg portal milling machine from the pressing mechanism sector. Total mass: approx. 1200 ton

Illustration 1, 2, 3: Depositing of BILZ isolation pads (black) and padding of the spaces with mineral fiber isolation plates (sacrifice formwork).

Illustration 4: Covering of the entire area first with PVC sheeting as used for construction work, and then with mineral fiber cover plates. All joints must be pasted/glued together.  

Illustration 5, 6: Mounting of reinforcement.                                    Illustration 7, 8: Filling in of concrete.  

Additional example:

Pit ready for concrete inertia block                 Cement inertia block being installed

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Equipment: Vibration isolated Inertia Block (approx. 20 ton) on BILZ^® Membrane Air Spring System – BiAir^® 4-ED with mechanic-pneumatic level control MPN-LCV-HF

Special request:

Because of surrounding machines, crane runaway etc. installation of an isolation system is difficult. Work pieces, approx. 10 ton, create a large change in loading on the isolation system. To compensate for this, a high flow mechanic-pneumatic level control with level accuracy approx. 0.1 mm is needed.

Pit with Air Springs          Concrete inertia block being installed on top of air springs         Machine installed on top of inertia block

Application of an Foundation installation for a Roll Grinding Machine

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