Trumpf TF350 Clinching Tool

Harry Thompson IVOctober 2nd, 2018

Clinching as an alternative to Drill Screws for connecting Ductmate Frame to the duct wall

Ever considered the sharp points of screws as a handling risk but also as objects in the airstream that accumulate lint and residue over time?

Most of the time, Ductmate 35 Flange is connected to ductwork by using Drill Screws.

With #3 Die, Clinches Stainless Duct to Stainless Ductmate Flange...

Attaching stainless Ductmate to stainless sheet ductwork is a challenging task. The contractor drills a hole, then uses a stainless screw to attach, which is labor-intensive. A clinch is a SMACNA-approved method for connecting the sleeve of the Ductmate to the ductwork. Since it's clinching instead of penetrating, job site workers don't have to worry about sharp screw ends.

Note: Comes standard with 2+ (ideal for Galvanized Ductmate) or 3 Die. Please specify when ordering.

Sharp screw points pose danger risk in handling,
especially on 4 piece duct sections shown here.

Then we’ve got a solution for you...

STrumpf TF350 Clinching Tool

Using the same tool, users can load different dies for different applications...

#2 die for AccuFlange connection to Spiral wall
#2+ die for Galvanized Ductmate Flange connection to the ductwork
#3 die for Stainless Ductmate Flange connection to the ductwork

The clinching segments, the two pieces with the rubber band, are the only parts of the die that come into significant contact with the metal and are thus consumables. Clinching three thicknesses of galvanized metal at max capacity, factory estimates 100,000 hits before segments need replacing. These segments, part #53881, are interchangeable with each die.

Die Size	Capacity (combined thickness)
#1	.031 - .059
#2	.062 - .079
#2+	.083 - .098
#3	.122 - .138

(Capacity is the combined thickness of all pieces)

According to Trumpf's specs, the #2+ will not work on .068, but the #2 will:

ECONOflange and AccuFlange 18 ga (.045) + Spiral pipe 24 ga (.023) = .068

Used as an alternative to screws when attaching the two 20 ga galvanized legs of the Ductmate slide-on Frame to the duct wall in between.

TR350 Trumpf Clinching Tool weighs approximately 17 lbs and is used as an alternative to screws when attaching the two 20 ga Galvanized legs of the Ductmate slide on Frame to the Duct wall in between.

When used with the 2 + die, the Clinch holds perfectly without puncturing through the 3 pieces. The connection is so strong that it cannot be pulled apart; the only 100% leakproof method of fastening this connection; maximum capacity on all sheets combined cannot exceed 10 gauge (.125).

When used with the 3 Die, the TR350 clinches Stainless Steel Ductmate Flange—a major labor and material savings for the contractor.

If throat depth of 2-1/2” suffices , put the 350 on a stand and you have a cost saving alternative to a free standing Clinching Machine.

Optional pedestal stand for the TF350 Clinching Tool.

Stationary Punch Head

Stationary Punch Head allows operator to get flush up to workpiece and Clinch, something that would not be possible otherwise because the pivot screw gets in way. Ideal for Large Standing Seam connection on Segmented Fittings.