Maguire Gravimetric Blending
 Introduction
Products & Software
Introduction to Maguire
• 22 years manufacturing blending equipment
for plastics
• 1989 : ‘Weigh Scale Blender’ launched
• 1993 : Becomes the World’s best selling
gravimetric blender
• Sales are close to 3,000 per annum
• More than 80 WSB models
• Wide range of application & throughputs
• Market Leader
Maguire WSB Sales per Annum
3000
2500
2000
1500
1000
500
0
'89
'90 '91
'92
'93 '94
'95
'96 '97
Maguire Sales Per Annum
'98
Maguire 97 & 98 World Sales
1600
1400
1200
1000
97
98
800
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200
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USA
Europe
Rest
Maguire World Sales & Support
 Dosing & Blending
Traditional Options for Processors
The Dosing Choices
• In general, a processor who is going to switch from
pre compounded materials to raw materials will
have 3 options for mixing.
• Proportional Valve + Doser
• Volumetric Blending
• Gravimetric Blending
Dosing by Volume
• The Most Common Methods :
• ‘Pocketed Wheel’ Metering
• ‘Screw’ Metering
Pocketed Wheel Metering
Screw Metering
Volumetric Dosing Variations
Set %
Required %
Time
Required
Set
Variable
What about Regrind ?
Proportional Valve
Closed Loop Systems
Problems : Volumetric Dosing
• Time consuming manual calibration
• Skilled personnel required for setting
• Formulas and process data required for
calibration
• Assumes consistent bulk density of
materials
Blending Requirements
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Minimise labour
Minimise involvement of skilled personnel
Accurately control material usage
Cut waste and scrap
Less down time; More production time
Repeatability of product
Peace of mind
 Gravimetric Blending
Introduction to Maguire Technology
Why Gravimetric ?
• Technological affordability
• Consistent accuracy
• Automatically adjusts for variations in bulk
density
• Calibration is an automatic function
• Setup in minutes - not hours
• Measures by Weight - not Volume
• Eliminates errors calculation
Maguire WSB Blender
Maguire ‘Weigh Scale Blender’
How does it Work ?
Maguire Weigh Scale Blender
Maguire Controller
Maguire Slide Gate System
Materials Dispensing
Material Mixing
Mixer Clean-out
Maguire Auger Feeder
Accuracy
• Every batch followed by error correction
routine
• Accuracy rises by restricting a slide gate or
auger feeder
• Immune to vibration
1% Setting = Typical accuracy of + / - 0.05 %
WSB Trial Results
(Courtesy of Cookson Polymer Group - R & D)
Maguire: Further Features
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Audible & Visible Alarms
Lock Out Settings
Recipe Storage
Password Access
Regrind Control
Off Line Batch Operation
Off-line Batch Blending
Maguire: Advantages
• Only Gravimetric to mount directly on
throat
• This system will never drop an incomplete
batch
• Automatically adjusts additive quantities
as regrind levels fluctuate
• Automatic calibration and correction
• Extremely user friendly
Maguire: Advantages
• Ease of maintenance, few mechanical
parts
• Efficient mixing with no ‘dead spots’
• Highly accurate
• Excellent for ISO 9000 Standards
• Proven with over 11,000 units
• Quick Clean-out
 New Developments
New additions to the range
Maguire Micro Pulse
• Patented new technology
• Revolutionary design
• Micro Pulse allows the processor to dose a
pellet at a time
• Micro Pulse can replace conventional Auger
feeders bringing cost and maintenance down
• This new technology is immediately
available only with Maguire
Maguire Micro Blender
• Maguire has launched a new innovative Micro
Blender to its already comprehensive range of
80 blenders :
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Throughput of approximately 30 Kg/hr
New patented Micro Pulse technology
Immune to Shock & Vibration
New Pneumatic Mixer process
Fully removable materials hoppers
Weight of less than 29Kg
Footprint of 15cm x 15cm
Maguire Micro Blender
Maguire Micro Clean-out
 Data Retrieval
Monitoring & Recording blend data
Standard Data Retrieval
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Individual material weights used
Total batch weights dispensed
Set percentages
Achieved percentages
Works order & operator tractability
Dates & times
Blender ID number
WSB Printout
Total Blend Data
Benefits • Sales tool to develop client confidence
• Planning of material costs
• Historical information
• Quality control
• Job costing
• ISO 9000
‘MLAN’ PC Communications
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2 way communication for Maguire blenders
Maintain material database
Set blends from a remote location
Monitor all blends from one terminal
Produces Reports from retrieved Data
Graphical data interpretation
Download data to Disk or Hard copy
‘MLAN’ PC Communications
 Client References
Sample of users & applications
Maguire WSB Users
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3M Company
AEI Cables
Aeroquip Corporation
Amplas
AT&T
Autobar Polyfilms
Bayer GmbH
Bic Corporation
Bischof & Klien
Blowspeed
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extract
Bonar Textiles
Bowater Liquid Packaging
BP Chemicals
BPI Group
Briggs & Stratton
Chrysler
Clingtech Films
CMB
Cookson Plantpak
Cebal
Maguire WSB Users
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CVP
Delta Crompton Cables
Dolphin Packaging
Du Pont
Dunlop Slazenger
Eastman Kodak
Electrolux
Exxon
Fisher Price Toys
Ford Motor Corporation
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General Motors
Gillette
Hasbro Toys
Hunstsman Containers
Hutchinson
Insulpak
ITW
Johnson Controls
Johnson Wax
• Legatech
Maguire WSB Users
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Link Plastics
LINPAC
Little Tikes
Littlefuse
Lucy Housewares
Merlin Flexible
Metzler
Montell
Orbitel Cables
Otto
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Peugeot
Phillips Consumer Electricals
Plasti Omnium
Plysu
Polarcup
Rexam Group
Roll-a-Rap
Romar Packaging
Royalite
RPC Containers
Maguire WSB Users
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Sansetsu
Sealed Air
SGS Geosystems
Smer
Smith & Nephew
Sony Corporation
Swains Packaging
Toshiba
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Trigon
Tupperware
Valeo
Viskase
Visqueen
Wardle Storeys
WCB Linpac
Zotefoams
BPTA - Blow Moulding
Rexpak - Blow Moulding
Johnson Wax - Blow Moulding
SGS Geosystems - Film Extrusion
Derby Plastics - Film Extrusion
WCB Linpac - Injection Moulding
Rexam Packaging - Injection Moulding
Dolphin Packaging - Sheet Extrusion
Insulpak - Sheet Extrusion
 Client Cost Analysis
Increased performance at a lower cost
Cost Savings
• Why specify a Maguire?
Maguire now is proven as the market leader due to
features and benefits at an affordable price.
• How can Maguire help with Materials?
Maguire gives the manufacturer the ability to blend
with ease and confidence at a fraction of the cost
of utilising a compounded material.
Cost Saving Analysis
• Time
5 days, 20 hr/day, x 50 weeks = 5000 hr/yr
• Materials
200 kg/hr = 1,000,000 kg consumption
• Masterbatch addition
2.0 % masterbatch used = 20,000 Kg/yr
• Price
masterbatch price US$16/Kg = US$320,000
per year
Cost Saving Analysis
• Maguire
In our experience with volumetric systems we
estimate that processors while aiming to dose
at 2.0% actually dose between 1.9% to 2.6%;
on this basis 20% fluctuation is not unusual
• Financial saving
20% of US$320,000 masterbatch =
US$ 64,000 in masterbatch saved per annum
Compound v Natural
• The savings for companies using compounds
will again be high.
• Direct material costs savings can range from
5% to 30%.
• Indirect costs for the manufacturer include
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Warehouse & Stocking
Distribution costs
Re Drying
Materials degradation in regrind
Compound v Natural
Savings per 1000Kg
3000
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2800
US$ / 1000Kg
2500
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1530
Compounded
Natural
Saving
1150
1000
380
500
200
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PP
Nylon
Maguire Synopsis
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Market Leading Gravimetric Blender Worldwide
Proven in every application every time
Designed to be easy to use & set up
Patented Smart Technology
Highly Accurate & Cost effective
Enormously flexible
MLAN software for Data
Unrivalled 3 year warranty
Maguire Gravimetric Blending
End of Presentation