Duro Dyne Magnetic Cleater Tool for TDC/F Duro Dyne Magnetic Yellow Cleat Tool for TDC/F 6” Cleats speeds up process of connecting duct sections on the job site while also ensuring that the fab shop’s workmanship isn’t compromised with a few hammering miscues by someone in the field On a typical job, the rectangular duct […]
Do you know the types of elbows used in rectangular duct? Sign as seen hanging at Sig Cox (founded 1926), Sheet Metal Contractor in Augusta, GA The determination of the types of elbows used in a duct job depend on a variety of factors, some of which are the engineer’s preference, the contractor’s influence and
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Why every Duct Fab Shop should have cans of Edge Coating on hand when cutting and installing Fiberglass Duct Liner With the quality of workmanship involved in creating duct sections and fittings, many shops have found it’s worth taking the time to grab an aerosol can of DURO Dyne Edge Coating and coat the raw
TDC vs. TDF Profile Mated TDC and TDF Profiles Lockformer’s TDC Machine (circa 1975)Smacna classifies any rolled on transverse connector as T25. Lockformer came out first with a TDC Rollformer (Transverse Duct Connector) and then Engel followed with their TDF Rollformer (Transverse Duct Flange). These machines rollform the Flange to the end of the Duct
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Are you cutting 20 ft Strut to 6 ft lengths? Many contractors take a 20’ length section of strut and cut it to just over 6’ long for some overhang on each side. Conklin stocks and sells 6’8” long strut as a labor saving option. Why 6’8”? Because 20’ divided by 3 = 6.7” The
B. Ductmate Repeater Nails C. Clinching using a Trumpf 350 Power Fastener Not all jobs are suited for Butyl Gasketing…
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What tool are you using to clean the edge of plate prior to butt welding? Connecting two pieces of 1/2” (or thicker)carbon steel or 1/4” (or thicker) Stainless is accomplished by Butt welding the two joining edges end to end. But simply joining the two pieces together and welding around the perimeter doesn’t give the
Duct Sections: One piece, Two piece and Four piece One Piece Duct—aka Full Wrap Duct One Piece Duct, stacked One Piece Duct: Either formed on a Full Wrap Duct Line or in the shop by seaming together two half sections of duct, this type of duct is formed into a complete duct section in the
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Battery Powered Nibbler Cutting Holes for Taps in Double Wall Spiral with Unfaced Liner and Solid Inner Wall. Plasma torches could pose a fire risk when cutting the inner and outer wall of spiral duct due to the flying sparks. An Extended Head used on a Profile Nibbler makes this process safer Double Wall Insulated
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Pitts Seam Sealant Sealing in the Pocket Applying Sealant into the Pittsburgh Seam is different than applying it on the Pittsburgh Lock but either means accomplishes the same result. This image shows Exterior view of Pittsburgh’s Female Pocket with the Pitts Seam Sealant clearly visible at top near where the Longitudinal Seam and the Transverse Connector (TDC in
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Cutting taps into Double Wall Spiral Pipe The outer wall of spiral duct can be cut with C160 double cut hand shears but it cannot drop down to cut the inner wall. How are contractors cutting taps into Double Wall Spiral Pipe? A. Offset Snips B. Double Cut Hand shear on outer wall, Liner Knife on
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Vicon Coil Line In a typical commercial job, the rectangular duct design averages 75% straight duct and 25% fittings. Investing in machinery that automates the straight duct portion of the job is a huge savings for the contractor in efficiency, manpower, and scrap loss. Such an investment is not cheap. Vicon recognizes that many shops
ECONOflange ECONOflange shown sliding inside the outer wall of the spiral duct Conklin Stocks 10″ thru 36″ ECONOflanges for single wall spiral pipe Single Wall Connectors Hemmed vs. Raw Edge: Accuflange rings have a hem on the sleeve. This added feature is often considered beneficial on larger diameters Longer vs. shorter inner sleeve:
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Cleatbender—Power Slip and Drive duct with Pittsburgh Lock Slip and Drive Duct is the most common method of connecting two assembled rectangular duct sections from end to end, referred to as the transverse connection. Preparing the duct for the Slip (a.k.a. Flat S Lock) , which connects the top and bottom , is much easier
Conklin is proud to be the only company in the Southeast region authorized as a licensed service provider of Sumner Lifts. Sumner 2118 Duct Lift (650-lb Capacity) Sumner 2100 Series Standard Features 12′, 18′ & 24′ heights (3.9 m, 5.6 m, & 7.2 m) 650 lb capacity (300 kg) Loading Bar – great
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Battery Powered Double Cut Shear What happens when you have a German company known around the world as the leader in laser technology that enters into the market of metal working Power Hand Tools? You get a product that has been researched extensively and tested to the highest standards. Though the Trumpf name is known
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Shoetap HETO—High Efficiency Take-Off Just about every commercial HVAC job has Shoetap HETO’s coming off of the rectangular duct into round pipe run outs. While a conical provides better air flow than a standard straight sided Airtite Takeoff, the HETO (High Efficiency Take-Off’s) surpasses even the conical for the best air movement. Designed with an
Comparing the Pocket Depth and Hammer Over Edge on Pittsburgh Machines The hammer over edge is referred to by some contractors as the tail of the female Pittsburgh seam. It is the flange that is folded over itself when the Pittsburgh Lock is formed. The factory sets the Hammer Over Edge to 5/16″ long on their
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Flagler 20 Ga High Speed Flagler 20 ga High Speed Pittsburgh Machine Any fabricating machine that has been made the same exact way over four decades has certainly proven the test of time. But are sheet metal shops kidding themselves not questioning why some features of a standard 20 gauge Pittsburgh Machine couldn’t have at
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Trumpf F301 Pittsburgh Seamcloser Trumpf TruTool F 301 Pittsburgh Seam Closer The Pittsburgh Lock is the most common longitudinal seam in Rectangular Duct. It is comprised of two parts: the Pittsburgh seam (which is basically a pocket and an extending straight flange) and the 90 degree Right Angle Flange. The former is made by the
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Rectangular Duct Basics Rectangular Duct is the most common type of duct in commercial projects. Round duct, namely spiral pipe, is gaining ground but has limitations in areas of strength, reinforcement, both thermal and acoustic insulation because a lack of accompanying materials. When it comes to Rectangular Duct there is a transverse (end to end)
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“Our new Red Bud coil line has arrived into Birmingham and should be operation in several weeks. Capable of 14 ga Galvanized, this line will run 275 ft per minute, handle coil weights of up to 50,000 lbs, breakdown and recoil larger coils into smaller ones. It’s drop stacker and stacking table will allow us the
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