CHICAGO, June 19, 2006 - Use of LineMaster™ AC extrusion yield control on a
single three-layer blown film line has enabled IG Industries PLC, a custom
manufacturer of polyethylene films in the United Kingdom, to obtain an increase
in saleable output whose average annual value is calculated at nearly USD $
100,000, it was announced today at NPE 2006 by Maguire Products, Inc. (Booth
5507).
The amount is equivalent to well over half of the total investment cost for
the three Maguire® blenders, three loss-in-weight (LIW) hoppers, and LineMaster
AC software employed in the yield control system. According to Sean Conlin, IG
Industries production manager, this increase in saleable output as compared with
other coextrusion lines at the company is the result of the simplicity and
user-friendliness of the LineMaster AC system. He also noted that the new yield
control costs less than conventional ones.
After installing the system on a shrink film production line at its plant in
Elsham Wold, North Lincolnshire, IG Industries reduced the amount of cleanout
and set-up time for a typical job changeover by 10 minutes, Conlin said, and
this in turn meant less scrap per startup. The company operates the line on a
24-hour basis for 356 days a year and typically makes between one and five job
changes on it in a 24-hour period. The estimate of nearly $ 100,000 in added
annual output of saleable film is based on an average of three job changes every
24 hours over the course of a year. The figure is the amount left over after
subtracting the resale value of the scrap film that would otherwise have been
produced (see table).
LineMaster™ AC Costs Less than Standard Yield Control and Increases
Productivity
Maguire blenders are gain-in-weight (GIW) systems that prepare raw material
batches by sequentially dosing each ingredient into a weigh chamber.
While the LineMaster AC yield control system employs LIW hoppers
because of their split-second feedback of data on material consumption by the
processing machines, it is Maguire GIW blenders that actually
prepare the raw material batches to be fed to these hoppers. “Yield control
systems based on LIW blenders are more costly and cumbersome than
LineMaster,” said Steve Trainor, sales engineer for Summit Systems, the UK
representative for Maguire which worked with IG Industries on the installation.
“The LineMaster system costs at least 50% less than these older systems.”
The simplicity and user friendliness of the LineMaster system has resulted in
more production uptime, less maintenance, and less workplace mess, according to
IG Industries’ Sean Conlin. Changing jobs with an LIW blending system can
involve changing screws and dosing barrels, hopper cleanouts that can lead to
spillage, reloading blenders and charging screws, and filling the hoppers on
each extrusion line. “All this causes downtime and generates scrap every time
you end a job and set up the line for a new one,” Conlin said.
IG Industries operates six coextrusion and five monolayer blown film lines
with a typical total output of 45,000,000 lb. (20,000 metric tons) per year.
Besides manufacturing standard types of shrink film, the company regularly
develops films for special requirements, Conlin noted. “We have a strong
technical team constantly developing new products,” he said. “We keep close
working relationships with our polymer suppliers and customers, which enable us
to identify promising new raw materials and engineer them into films that
benefit our customers.”
Even Allowing for Resale Value of Scrap, Increase in Value of Saleable Output
Yielded by LineMaster™ AC Averaged £ 53,000 (US $ 97,000)
|
Even Allowing for Resale Value of
Scrap, Increase in Value of Saleable
Output Yielded by LineMaster™ AC Averaged £ 53,000 (US $ 97,000)
|
|
PRODUCTION FACTOR |
VALUE AT
MINIMUM
OF 1 JOB CHANGE
PER 24 HRS. |
VALUE AT
MAXIMUM
OF 5 JOB CHANGES
PER 24 HRS. |
Average
price of finished
filma, £ (US $) per kg
|
1.10
(2.02) |
1.10
(2.02) |
Average
resale value of
scrapb, £ (US $) per kg
|
0.35
(0.64) |
0.35
(0.64) |
Value of
added saleable
outputc, £ (US $) per kg |
0.75
(1.38) |
0.75
(1.38) |
Throughput, kg/hr
|
400 |
400 |
Reduction
in time for job
startups, min.
|
10
|
50 |
Amount of
scrap
reduction, kg
|
66 |
333 |
Total
value of added
saleable output per 24 hrs,
£ (US $) |
49.50
(90.93) |
249.75
(458.79) |
Total
annual value per
356 days on 24-hr. basis,
£ (US $) |
17,622
(32,371) |
88,911
(163,329) |
Average
annual value,
at 3 job changes per
24 hrs, £ (US $) |
£ 53,000 (US $
97,000) |
|
SOURCE: Numbers reported by IG Industries PLC for a three-layer blown film
line where job changes take place from one to five times per 24 hours.
Line produces various grades of polyethylene film on a 24-hour basis and
is run for 356 days a year.
a: Estimated by IG Industries at £ 0.90 to 1.30 (US $ 1.65 to 2.39) per
kilogram.
b: Estimated by IG Industries at £ 0.20 to 0.50 (US $ 0.37 to 0.92) per
kilogram.
c: Average price of finished film minus average resale value of scrap.
|
IG INDUSTRIES PLC is located at The Flarepath, Elsham Wold, Brigg, North
Lincolnshire DN20 0SP, United Kingdom. Tel: 44-01652-68888. Fax:
44-01652-688808. Visit
www.igindustries.com.uk.
SUMMIT SYSTEMS LTD. represents Maguire in the United Kingdom. It is located at
Vanguard, Tame Park, Tamworth, Staffordshire B77 5DY. Tel: 44-1827-265-800
Fax: 44-1827-265-801. E-mail: mike.jordan@summitsystems.co.uk. Contact: Mike
Jordan, Managing Director.
MAGUIRE PRODUCTS, INC., headquartered in Aston, Pennsylvania, U.S.A., is the
world’s largest supplier of gravimetric blenders and liquid color pumps and also
manufactures loading systems, granulators, dryers, auger feeders, and related
equipment and software. Its customers include injection, blow, and rotational
molders, extrusion processors, and compounders. Founded in 1977, Maguire
operates five manufacturing facilities in Aston and Smithfield, Rhode Island,
U.S.A. The company maintains a network of distributors in the Americas and
overseas and has two sales and service subsidiaries: Maguire Europe, which
supports customers throughout Europe and operates a distribution center in
Tamworth, Staffordshire, United Kingdom; and Singapore-based Maguire Asia,
serves customers throughout South Asia and the Pacific Rim. Visit the Maguire
Products web site:
www.maguire.com