DF-1000 Torque-Activated Chucking System Components
More Info- Simple, strong clamping system for easy adjustment of core chuck.
- Smooth jaws grip tighter as more torque is applied without damaging cores
- Heavy–duty springs keep jaws in position and allow for expansion.
- Carbon fibre through shaft (recommended) supports heavy loads while keeping weight to a minimum; metal sleeve protect5 carbon fibre from abrasion.
- Retractable roll collar keeps roll in position; retractable fingers facilitate roll changes – simply slide a piece of core over the fingers then pull the assembly out of the roll.
- Collar’s fastening system allows quick and easy repositioning to fit various web widths
DF-1000 Synopsis
The Double E Company’s DF–1000 “Quick–Change”
Core Chuck Assembly replaces outdated, heavy, or labor intensive
chucking systems. It replaces knock-in cones or wedges, manually
operated chucks, and heavy through shafts.
The DF–1000 is a torque activated chuck which
engages automatically when the roll starts to turn. As more torque
is applied, the chuck grips tighter – there is no
need for operator adjustment. The chuck works the same
way in either direction of rotation, and does not require
any air to function.
The DF–1000 is easy to use –
just slide the assembly into the core. That’s it.
And when the roll has expired, just slide a piece of core over the
collar to retract the fingers, then slide the whole unit out of
the roll. No tools are needed to change rolls.
Inside the chuck, six precision-ground solid steel
rollers travel up and down cams on the central hex and the backs
of the jaws. This rolling action causes the jaws to expand in order
to grip the core. The rollers drastically reduce friction inside
the chuck, minimizing wear on the internal components. Consequently,
the DF–1000 requires very little, if any, maintenance.
The jaws of thetorque activated chuck are designed to grip the core without damaging
it. They are held in place by two heavy-duty springs which also
aid in jaw retraction. Reliable jaw retraction means the
chuck never gets stuck in cores like cones or wedges often
do.
The chuck’s performance is enhanced by a unique
roll collar which supports the roll at the end opposite the chuck.
Once the assembly is inserted into a roll, the collar’s retractable
fingers snap into place to keep the roll in position and properly
aligned. These fingers are designed to retract easily when a small
piece of core is pushed over them. Once the fingers are retracted,
the assembly slides out effortlessly, ready for the next roll.
The roll collar and chuck can be mounted onto your
existing through shaft, but for high strength and light weight,
nothing compares to a Double
E Dura–Light® carbon fibre through shaft.
The chucking system is a perfect addition to Goss
Community presses and other newspaper printing presses.
