Advanced Antivibration Components Introduces Three New Sizes of CNF Mounts

[carolpratt]

Contact: Dorothena Bonham
FOR IMMEDIATE RELEASE

New Hyde Park, New York — Advanced Antivibration Components - AAC has introduced 3 new sizes of constant natural frequency mounts - (CNF Type). The natural frequency of a system by its definition is proportional to the square root of the ratio of its stiffness to its mass.

For a conventional vibration isolator the force vs. deflection curve is a straight line; i.e., they are of “constant stiffness”. The CNF type mounts, however, as a result of their embedded internal gaps and supports, will increase their stiffness proportionally with the applied load. Therefore, the natural frequency of such a mount remains constant irrespective of the change of load.

Machinery in, general as designed and manufactured, results in uneven weight distribution as far as the footprint of the machine itself is concerned. Some machines may also have heavy moving parts and, as a result of this, the weight distribution varies as the machine operates. If, in all places
conventional vibration isolators are used which are of “constant stiffness”; i.e., the force vs. deflection curve is a straight line, the machine will not be horizontal since different parts of it, due to their weight, will cause different deflections.

This problem can be eliminated if vibration isolators are used, which have the characteristic that the stiffness is increasing proportionally with the load. Such vibration isolators are call the CONSTANT NATURAL FREQUENCY (CNF) isolators.

These mounts, designated as the Series V10Z24, come in three sizes. The V10Z24M10040LD in range 400-1,000 lbs, the V10Z24M10040HD in range 700-1,900 lbs, and the V10Z24-575175 in range up to 8,000 lbs. for nonimpact machinery and 5,000 lbs for impact machinery. They are available from stock for immediate delivery.

Special descriptive literature is available free upon request from Advanced Antivibration Components - AAC, 2101 Jericho Turnpike, Box 5416, New Hyde Park, New York 11042-5416. Phone: 516-328-3662 • Fax: 516-328-3365. Web: http://www.vibrationmounts.com


1. To receive a free copy of the 240-page V100 catalog go to: http://www.vibrationmounts.com/Catalog.htm
2. To view product pages and RFQ's go to: http//www.vibrationmounts.com/RFQ/VM03009.htm
http://www.vibrationmounts.com/RFQ/Vm03010.htm
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[Gdasia]

Let me tell you about my company’s experience with Advanced Antivabration Components. The company I work for is located in Europe, from where we sell our products worldwide. We have been on the market of mechanical engineering for over 30 years now. At the beginning of February we ordered from Advanced Antivabration Components (www.vibrationmounts.com) small parts, twenty four circular cable isolators necessary for our gear. We were asked to wire the whole amount of the value of the order in advance, which we did immediately. First we were told we would have to wait anywhere from 4 to 5 weeks from the time they receive the money (3/25/10 at the latest). It was 2/18/10 when the money was received by AAC and the order placed. Based on that we were told, we scheduled delivery of our gear anywhere from 4/06/10 to 4/12/10 at the latest. In the middle of March we still had not heard from AAC regarding our order, in spite of our numerous attempts to contact the company. We were simply ignored all across the board.

On 3/22 their secretary kindly replied she would follow up with the vendor to see what is going on. We have not heard from them until 4/01/10, when after our numerous phone calls, their production manager, Dorothena Bonham finally stated in the email that they apologized for the delay, which was caused by quality assurance and that our order would not be shipped sooner than 4/08/10.
It was a devastating news for us, since there was virtually no way this order could make it before 4/12/10, when we scheduled the shipment of our product to Germany and then to India. This delay will cost us not only the money we could lose in a transaction with our client, but also the reputation and possibly the valuable client. We all felt that AAC completely forgot about order and ignored us. We don’t know if this was happening because we are in Europe and there was not much we could do from here. It was too late for us to cancel the order and place it elsewhere. We warned the AAC that we were holding them to our delivery contract and if any loss resulted because of this late delivery, we will be taking legal action.
We received the product on 4/16/10 and the cable isolators turned out to have entirely different dimensions from the ones we indicated in our order. That has created another expense for refitting the mounting holes in the cable isolators and further delays.
And they charged us for the shipping, even though it was covered previously, this time it was supposed to be an overnight super quick shipment. Well, it wasn’t, it still took a week for us to get it.

We are far from satisfied with the service the AAC offered. Overall we had a horrible experience dealing with AAC, I wish we could have ordered these small components someplace else to save ourselves a trouble of going through the nerve wrecking experience. Please note that on their website AAC promises to “…ship your order fast, right from their warehouse” and “...different mounting holes are available upon request”. In general, it was a costly and horrible experience. I do not recommend doing business with AAC, as you may never see your money or the product you ordered. They ignore their clients, barely ever reply to any emails or phone calls, and send you not what you ordered, which is very frustrating to any legitimate business who cares for their clients.