D3 Differential Air Shaft

Quick and easy setup – automatically locks core position without spacers or core stops to set up

Better quality rolls – automatic positive mechanical core stop feature guarantees core positioning

Flexibility – run multiple slit widths on the same shaft

Industries
  • Battery
  • Cardboard
  • Flexible Packaging
  • Food and Beverage
  • Nonwovens
  • Packaging
  • Pharmaceutical
  • Specialty Converting
  • Tag and Label
  • Towel and Tissue
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With Tidland’s Equalizer Model D3 Differential Air Shaft, operators can run a variety of different roll widths with adjustable pressure all along the length at the same time. The Equalizer D3 is guaranteed to provide core positioning with adjustable air pressure without spacers or core stop setup. It’s designed for duplex center or surface winders for multiple roll tension equalization. When not covered by the core, tension elements mechanically lock in place to secure core position through the entire run. The D3 requires no tools for core stops, no core stop positioning.

D3 Differential Air Shaft

Minimum Slit Width (3-6 Inch Cores) - Drop-In
0.88 in22.4 mm
Minimum Slit Width (>6 Inch Cores) - Drop In
1.00 in25.4 mm
Minimum Slit Width (3-6 Inch Cores) - Cantilevered
0.88 in22.4 mm
Minimum Slit Width (>6 Inch Cores) - Cantilevered
1.00 in25.4 mm
Minimum Tension at Core (3-6 Inch Cores)
0.10 pli0.10 pli
Minimum Tension at Core (>6 Inch Cores)
0.500.50
Operating Core Pressure
5 to 40 psi35 to 414 kPa
Recommended Core Tolerance (3-6 Inch Cores)
3.015 +/- 0.005 in 3.015 +/- 0.005 in
Recommended Core Tolerance (>6 Inch Cores)
6.015 +/- 0.005 in6.015 +/- 0.005 in