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1-2
Theory of
operation
INTRODUCTION
The D490 Differential shaft uses cartridges that are designed to
spin on the shaft even after web tension causes them to grip and
lock the core. Slippage is between the shaft body and cartridges,
not the core, so dust is not generated by core wear. Independent
cartridges allow for winding multiple cores of different roll widths
and roll diameters at the same tension.
Model number
key
Shaft series – shaft type – cartridge type
Shaft series
D – Differential
Shaft type
490 = air shaft
Cartridge type
B – ball
S - spring
Available models
D490B
D490S
www.maxcessintl.com
Tidland D490
MI 746508 1 F