Dear Mr. Kang,

We had a discussion on the "Flow Dynamic Conveyor" in the following forum:

https://forum.bulk-online.com/showth...?threadid=1425

Please visit there.

Regards,

Reinhard H. Wohlbier ■

Nol-Tec Systems, Inc. would gladly take a look at your air slide application. We have also recently established Nol-Tec Asia.

ntasia@nol-tecasia.com.sg

+65-6753-1933

sales@nol-tec.com

651-780-8600 Corporate Sales

317-745-9149 International Sales ■

Dear Sir:

Just to give you some options, there are 5 manufacturers of air supoorted belt conveyors in North America, thatI know of.

The Hendrik Group, Inc. - www.hendrikent.com

Tramco, Inc. - www.tramcoinc.com

Hudco, Inc. - www.hudcoinc.com

Martin Engineering - www.martin-eng.com

B.I.D. Ltd - www.bidcanadaltd.com

Not all manufacturers calculate or fabricate with the same level of competence or quality. A rose is not a rose, is not a rose when selecting a materials handling company. Do your homework.

1. Select a reputable company. Don’t necessarily look at how long a company has been in business, but how long have they been associated with or manufacturing air supported belt conveyors. A recent survey by my firm indicated that out of the five companies in North America involved in the air supported belt conveyor business, only two have 20 or more years experience in the calculations of air requirements and conveyor design and one of these two companies caters solely to the grain/feed/milling industries. The other three companies have been in the air supported belt conveyor business from a couple of months to 4 years or less.

2. Make sure that the company you select has experienced engineers with a background in conveyor design and bulk materials handling in general.

3. Request an installation list with names and telephone numbers and call these references. Does the installation list only indicate retrofits or also complete conveyors and/or conveyor systems?

4. Air supported belt conveyor construction differs from manufacturer to manufacturer. Some have V cross sections and some box cross sections. Some use light gauge material for fabrication. Some fabricate utilizing stitch welding and some weld all joints continuously. Some use butt connections between plenums and some use male/female interlocking connections between plenums. Some are painted without priming. Some use powder coating.

5. We believe one of the most important, if not the

most important way to select an air supported belt conveyor manufacturer is to develop bid specifications for your requirements. Spell out your paint requirements, gauges of construction, welding requirements. Spell out your requirements for transition distances, loading angles, belt edge distances and starting requirements. It is the only way to compare apples with apples.

6. Go visit air supported belt conveyor installations

and talk with the operators and maintenance personnel. There is nothing like “kicking tires”. ■