Common (manually) Roll handling Process:
Modern slitters run at
speeds of 600-800- up to
1000M/min and present
large numbers of rolls in
a very short time, however the time involved in the
packaging process do not allow to run these machines at full speed. Although roll pushers
rotating unloading shafts
(6)
(5)
and
improve the process,
still rolls need to be transferred to the pallet, most
1
of the time being tilted from horizontal to a vertical
set down position.
Dotec Roll Handling Solutions Cap. 25Kg/55Lb to 500Kg/1200Lb
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2
Dotec Roll Handlers are available in a capacity range of 25Kg/55Lb up to 200Kg/450Lb rotary action
(tilting horizontal to vertical) and up to 500Kg/1200Lb in single action (horizontal - horizontal) probe type.
They operate pneumatically and driven by (cable) Air Balancers and/or Air Balance cylinders.
Cycle times of 20sec/90sec for a roll transfer:
Roll
pushers
Dotec roll handlers are designed to provide clear
process (cycle) times in an ergonomic process.
They protect the roll and the operator while
catching up (synchronizing) with the slitter-speed
during the packaging process.
- Dotec Jib Crane
A variety of models and concepts allow for the best
- Dotec RH90 roll handler
solution in different circumstances, e.g. multiple
& Air Balancer
rolls (label & narrow web) and roll doffing trolley’s
3
6
Unloading shafts (Vertical to Horizontal)
- Dotec Roll doffing Trolley
to unload the entire unloading shaft in one move.
These solutions bring speed into the packaging
process and “fun” for the operators.
Unloading shafts present
rolls horizontally.
Still the roll need to land on
the pallet vertically,
but how?
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Multiple rolls (label & narrow web)
Multi Roll Handlers Concept-3 © dotec 2016
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Rotating Family
FP1
FP2
RH90
RH140
RH200
8/32Kg
15/80Kg
25/100Kg
50/140Kg
60/200Kg
20/70Lb
30/175Lb
50/220Lb
110/300Lb
130/450Lb
The Rotating Family
RH150xxL R/L
RH150xxL WR
50/150Kg
50/150Kg
100/300Lb
100/300Lb
(Extra wide rolls)
Presents ease of operation,
particularly for wider rolls.
It rotates the roll through its
center which enables large/
wide rolls to easily being
picked-up, rotated, and then
placed on the pallet.
The “Balance Mode” control
Tilting Family
The Tilting Family
(option) allow to take rolls
directly from the shaft.
provide fast and efficient roll handling operations for both roll production and
packaging processes (Slitter-Rewinder-Converting-Printing-Packaging processes).
The classic question:
Our slitter can run rolls from 15Kg/30Lb up to 225Kg/500Lb. We need ONE roll handler that can do All.
The question make sense, however the answer is that, although we can make one, nobody will work
with this handler. It’s too heavy and uncomfortable to handle your lighter rolls and process speed is
discouraging. A better solution is to have different dedicated TOOLS (Roll handlers) that can
interchange and be connected to the (central) infrastructure (Air Balancer, Rail-system and/or Crane).
The change-over is done in a few minutes. Plug & Play.
RHz45
RH90
RH140 and/or 200
Roll production (spread) chart
RHz45
RH140
RH90
Weight Range:
< 25Kg
25-100
80-150
100-200
<55Lb
55-220
175-330
220-450
= overlap
The Air Balancer have 2- or max. 3 Logic
RH200
Volume:
15%
60%
15%
10%
100%
control manifolds that connect to the
If this is your roll production chart
desired roll handler by means of the
these are your matching roll handlers
“intelligent” Quick-connective coupling.
Plug & Play
The TOOLS are carried around on their own Tool-Trolley.
Multi Roll Handlers Concept-3 © dotec 2016
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Fast change from roll handler A to handler B;
In just a few minutes the roll handler is changed
to the ideal model/capacity for the desired roll
packaging job. Rolls ≤ 90Kg/ 200Lb allow a higher
handling speed than rolls of >140Kg/300Lb. Since
mostly there is no space for two cranes around the
slitter area this concept is the right choice for a
comfortable and efficient roll handling process.
Quick Roll handler Change over:
ZA-Manifold:
To change there are no tools required.
Dedicated logic control valve for each
Set down the roll handler on its trolley and
type of roll-handler available on the
disconnect. Drive the other model in and
air balancer. During the connect/
connect (1-2). Ready to go in a few minutes.
dis-connect process the correct valve
(Air Balancer control)
is activated automatically.
(Coil Hose) swivel
RH90
A
Quick-Release Lock-Pin
B
1
RH200/140
Multiple tube connector
2
Connect/Dis-connect
under pressure.
Safety valve cut off
main air supply while
dis-connecting the
quick change coupling.
≤ 90Kg/ 200Lb
140Kg/300Lb
Choose the right tool for the job
Multi Roll Handlers Concept-3 © dotec 2016
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