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RETROFIT SOLUTIONS |
FEATURES | EXAMPLES FROM THE FIELD |
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Increased output and better quality at a reasonable price is a goal of every blown film manufacturer.
Our experience at Windmöller & Hölscher is that it's not always necessary to invest in a new line in
order to achieve higher output levels.
Often retrofitting an existing machine is all that's needed. Experts in W&H's Retrofits Department specialize in modernizing existing equipment, for example retrofitting a blown film line with the latest
air ring technology.
Since the opening of the department in 2008, W&H has performed more than 400 retrofits on a wide range of equipment.
Retrofit examples:
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| 1. |
PROCONTROL TS
operator console and OPTIFIL PLUS
process automation |
6. |
VARIOCAGE film
sizing unit |
| 2. |
Gravimetric resin metering and throughput control |
7. |
Thickness gauges
(contact, non-contact, traversing) |
| 3. |
Plastifying units
(extruders, screws, etc.) |
8. |
Haul-off units and appropriate
components |
| 4. |
MAXICONE dies |
9. |
Winder add-ons |
| 5. |
MULTICOOL air
rings to increase output
in conjunction with patented gauge profile controllers (OPTIFIL P2K,
P3K)
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From Resin to Melt
The plastifying section is the core element to produce superb quality
film. By optimizing the
internal bubble cooling system or retrofitting
new dies for 1 to 11 layers with diameters ranging
from 10 mm to 900 mm,
old extrusion lines can be upgraded to allow for applications from
HDPE
to barrier film.
High Output Requires Good Cooling
It takes efficient cooling to achieve high output and perfect
film quality. The answer is the
MULTICOOL high
efficiency air ring. MULTICOOL provides
notable increases in output,
while at the same time ensuring exceptionally
tight film tolerances. Air rings are available as
retrofits for
all W&H
and other dies.
In addition, the modular concept allows for easy retrofitting
and upgrading to a controlled air ring
with OPTIFIL P2K
(OPTIFIL P3)
or for retrofitting a MULTICOOL D
double deck air ring with
patented gauge profile controllers OPTIFIL
P3K (OPTIFIL P3)
for increased output.
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Before: W&H line with air ring from other manufacturer,
die diameter 500 mm, output
480 kg/h |
After: W&H line with new MULTICOOL dual
lip
air ring, gauge profile controller OPTIFIL P2K,
and increased output of 630 kg/h. |
Future Geared Control System
The W&H retrofit package also provides solutions to optimize the process
control system of older
VAREX blown
film lines. The MMC* retrofit package boosts your production
to make it ready for
the future.
The MMC* retrofit packages provides:
- long-time spare parts availability ensuring future-geared system technology
- state-of-the-art CAN bus technology with B&R controllers
- extended touchscreen functions for increased ease of operation, with graphic
representation of all parameters
- reproducible process data
- overall line monitoring
- increased effective up-time
- planning reliability
By retrofitting your "old" system with the latest software and hardware
automation elements from the VAREX module
package you are sure to turn it into a state-of-the-art system
incorporating the latest innovations.By the way: Converting RMOS-IPC
to Windows™ APC
620 is another alternative.
*) MMC stands for Siemens Multi Micro Computer
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