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Engel Transverse Duct Flange (TDF) Roll Formers

Instead of add-on flange, roll forming your own sealable flanges on transverse duct joints during the fabrication process has never been easier. Engel Transverse Duct Flange (TDF) Roll Formers produce flange on the machine’s left-hand auxiliary, and has unique, snap-in corners that eliminate spot welding. Optional rolls are also available for Z-Bar and Clip. Engel’s line-up of TDF Roll Formers include:

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Instead of add-on flange, roll forming your own sealable flanges on transverse duct joints during the fabrication process has never been easier. Engel Transverse Duct Flange (TDF) Roll Formers produce flange on the machine’s left-hand auxiliary, and has unique, snap-in corners that eliminate spot welding. Optional rolls are also available for Z-Bar and Clip.

Features:

  • Unitized steel construction
  • High yield and tensile strength shafts and “off the shelf” ball bearings
  • Heavy duty gears are Mod4 (6 pitch) heavy duty style
  • Extended roll shafts for mounting auxiliary rolls, one side outboard only
  • Optional tooling sets available for outboard mounting
  • All steel forming head, hardened steel infeed guide and hardened steel forming rolls mounted on turned and ground spindles
  • No adjustments necessary when going from 26ga to 18ga material
  • Includes Snap Flange Feature
  • Comes standard with short parts feeder

Engel’s line-up of TDF Roll Formers include:

  • HB-1640 Transverse Duct Flange (TDF) Roll Former
    • Uses 16 roll-forming stations
    • There are no adjustments when going from 26 gauge to 18 gauge material (competition requires adjustments)
    • The “short parts feeder” — 6” length minimum — requires no manual adjustment and removal of machine guard when running short parts (competition does)
  • V16 Transverse Duct Flange (TDF) Roll Former
    • 16 Station includes Patented TDF® Rolls
    • Only transverse duct connector machine on the market certified to comply with SMACNA Duct Construction Standard (DCS) T-25b based on actual laboratory tests across the full range of water gauges

Engel Transverse Duct Flange (TDF) Roll Former Specifications

Model

Capacity

Depth of Pocket / Size

Speed

Motor / Voltage

Dimensions / Weight

HB-1640 TDF Roll Former

18-26 gauge mild steel

1-11/16"

75 feet per minute

208, 230-460/3/60 VAC, 7-1/2 hp, 1,800 RPM

Length: 127"

Width: 27.5"

Height: 43"

Passline: 36"

Weight: 3,000 lbs.

V16 TDF Roll Former

18–26 gauge mild steel

22 gauge for optional clip rolls

1-11/16"

50-60 feet per minute

208, 230-460/3/60 VAC, 7-1/2 hp, 1,800 RPM.

Length: 134"

Width: 28"

Height: 45"

Passline: 38.5"

Weight: 3,000 lbs.

Engel HB-1640 Transverse Duct Flange (TDF) Roll Former

Engel V16 Transverse Duct Flange (TDF) Roll Former

Engel V12 Transverse Duct Flange (TDF) Roll Former

 
Engel | Transverse Duct Flange (TDF) vs. Slip-On Flange

TDF-V ROI

Material Cost of TDC/TDF Flange

TDC/TDF Cost Per Foot

TDC/TDF Flange uses 2″ of metal (24 sq. inches per linear foot)

TDC/TDF Material Cost per Linear Foot $ per foot
2 Edges to process per joint of ductwork
total material cost per ft. per joint of TDC/TDF Flange
$ per foot (per joint)
Corners

TDC/TDF corner cost
each x 8 Corners/joint
= $

Material Cost of Slip on Flange

Cost Per Stick

20 foot section
5% scrap factor = $

Flange Cost Per Foot

$ per foot
$ per foot
$ per foot

2 Edges to process per joint of ductowork, total material cost per ft per joint of slip on flange = $ per foot (per joint)


Additional Labor Cost for Slip on Flange Fabrication $ per foot (per joint)
Total Cost $ per foot (per joint)

Corners

Slip on corner cost
each x 8 Corners/joint = $ per joint


Comparison Analysis

Slip on Flange: cost/ft $
Cost/ft/joint $
Corner cost/joint $

TDC/TDF FLANGE: cost/ft $
Cost/ft/joint $
Corner cost/joint $

TDC/TDF Flange Savings: $ per ft of Flange
$ per ft. per joint
$ per joint

Example

Duct Size
Slip on Cost/Join $
TDC/TDF Cost/Joint $
TDC/TDF Savings per Join: $

Calculate Shop Savings using TDC/TDF


Estimated Savings per month for your shop using TDC/TDF: $ plus $ per joint for corners