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            Bilz Vibration Technology, Inc.

Telephone (440) 735-3072 

P.O. Box 241305
Fax (216) 274-9198 Cleveland, OH, USA 44124
After hours: 440-478-3456  E-mail: info@bilz-usa.com

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Vibration Isolation Pad Materials

Leveling Feet / Elements

Precision Leveling Wedges

FAEBI® Rubber Air Springs 5 Hz

BiAir® Membrane Air Springs 1.5 Hz

Active Isolation Systems-AIS™

VITAP®                                               

Isolated Tables/Platforms

Isolation Systems for Test Stands

Isolated Machine Foundations

Vibration Measurement

 

Isolated Foundation catalog pages 30

 

 

Foundation Isolation Brochure 12 page 1.8 Mb

 

 

                                Isolation pad sets

 

Isolation pad sets

 

By using multiple layers of isolating pad material it is possible to reach a very low natural frequency which enhances the isolation in comparison with single isolating pads. In particular these pads sets are ideal for big machines and vibration isolation foundations.  Even with a long lasting dynamic load, this highly developed material retains its isolation properties.  BILZ Isolation pad sets are resistant against oils, coolant, acids, bases and cleaners.  See the following write up on all of the parameters that these materials are resistant too.

 

 

 

 

The allowable load on 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. Please contact BILZ at 440-735-3072 to discuss your application in detail.

 

 

 

 

 

 

 

 

 

 

Example of a lost formwork type of installation

 

1 Foundation (side wall)

2 Mineral fibers and cover plates (lost formwork)

3 Foundation block

4 PVC film cover

5 Mineral fibers and cover plates (lost formwork)

6 BILZ isolation pad sets

7 Foundation (base)

 

 

BILZ isolating pads are ideally suited for vibration suppression of foundations and bed / 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: Installing BILZ isolation pad sets (black) and mineral fiber material (yellow) (lost 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 examples:

                                  

Pit ready for concrete inertia block                 Fabricated steel tub being installed.

                                                                            Used to form concrete inertia block 

 

 

Roll Grinding Machine installed on Bilz Pad Sets

 

      

Pit ready for installation of     Precast concrete slabs          Removable forms and steel rebar installed.

precast concrete slabs          partially installed                      Concrete being poured to form inertia block.

 

    

Concrete inertia block cures in      Grinding machine installed on top of concrete inertia block,

approx. 28 days                           which is installed on top of the Bilz isolation pad sets

 

Application of an Foundation installation for a Roll Grinding Machine

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Foundation Isolation with Air Springs:  Brochure

 

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                Machine installed on

                                            installed on top of air springs                top of inertia block

                                              (Can also be formed

                                                on top of air springs)

 

 

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©2009 Bilz Vibration Technology