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Silencers & Helpful Hints

Dust Silencers

Duct Silencers greatly reduce air movement noise levels in your work area or outside the building when located in the duct line on air discharge of fans and dust collectors. Duct Silencers can be installed in new or existing systems. Not to be installed on inlet side of dust collector. Our Duct Silencer is constructed of three layers. The inside layer is a wall fabricated of 22 gauge expanded metal. This is wrapped in the second layer which is a sound absorbing Melamine acoustical sculptured wedge foam that withstands constant temperatures up to 320° F covered with a hypalon coating. The hypalon coating stops the foam from absorbing contaminate that flows through the duct system and at the same time allows air noise to pass into the sculptured wedge Melamine material. Finally, the outer layer consists of 22 gauge galvanized steel spiral pipe.

Cross Section of Silencer, showing inner expanded metal wrapped in sound acoustical foam covered by our spiral pipe as the outer layer.
Stainless Steel Silencers and larger sizes available, call for quote.

Helpful Hints

Dust-Free Chop Saw - A very common, but difficult machine to evacuate saw dust from is the Chop Saw (Mitre Saw). Most Chop Saw manufacturers provide a 1" diameter outlet collar on the blade guard. The collar will sometimes have a bag attachment that only a small amount of dust is thrown into. Otherwise, a shop vacuum or high velocity dust collector is required to pull dust from such a small opening. When woodworkers try to adapt this 1" diameter pick up to their conventional dust collector they do not get any draw because of too much resistance. For a regular dust collector it is like trying to drink a milkshake through a cocktail straw.

We have found that creating a funnel effect under the base of the saw helps tremendously. When cutting, most of the sawdust goes through a slot in the base. First you have to cut a hole in the bench top just inside the legs (typically 10" diameter). Take a 10SR05 Spun Reducer and push through the hole to underside of base, then fasten. You may have to notch the front of reducer collar for the mitre handle. It is also a good idea to slice a piece of air hose and bond it to top edge of collar. This will act as a safety edge. Then connect the bottom collar of Spun Reducer (5" diameter) to your dust collector system (550 CFM is required). Now we have created a nice flow of air around the saw base. You should also leave your dust bag attached to the 1" collar. Your Chop Saw cutting will now be virtually dust free.
Call to Order 800.367.3828

Air Handling Systems - Home Page

If your are interested in ordering any of our products, the process is simple. Just click on Shop Online and select the product(s) you want to buy. It's as easy as that!!!

Should you have any questions, we offer a Frequently Asked Questions section that answers the many questions submitted to us over the years.

If you are interested in obtaining a copy of our guide to designing a system, click on Airhand Designing a System and you can either have us mail it to you or you can download your own copy.

One of our special features is the ability to manufacture custom tees. To find out more information, click on Manufacturing (Custom Parts)

We welcome your questions and comments. If you want to contact us, your can either send us an email at sales@airhand.com or phone us at either: 800.367.3828 or 203.389.9595.
Our fax number is:
800.438.7135 or 203.389.8340

Our company has over 50 years of expertise with a deep commitment of customer service. We are the single source for all your dust & fume collection and industrial ventilation components. You can rely on Air Handling Systems for cost-effective, high quality components. Our technical sales staff is ready to help solve your problems.

CONTENTS

Access Doors30 Angle Rings19 Ball Joints34 Bellmouths34 Blastgates32 Couplings18 Design Information10-13 Duct Silencers33 Easy Connect System18 Elbows22 End Caps / End Plugs18 Extension Arms39 Flexhose40-47 Floorsweeps34 Hangers20-21 Installation Information14 Nozzles35 Offsets27 Radial Saw Hoods34 Reducers31 Spiral Pipe16-17 Stainless Pipe37 Tees27-29 Y Branches29 Transitions35 Up-Blast Stack Caps36
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Air Handling Systems Catalog Home Page
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Dust Collection | Ventilation Systems | Dust Control | HVAC Systems & HVAC Ducts | Ducting | Ductwork | Custom Manifold
Industrial Ventilation | HVAC System Ducting | Spray Booth Fume Control