SIGMA
The Machine That Meets New Millennium
Norms |
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Modern day processor
struggling for economic success in competitive world, working under
assumed responsibility towards environment has become more demanding in
deliverables by the Injection Moulding Machine he chooses to buy.
The list of his expectations rolls out as follows :
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New Millennium Norms
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What it means |
Productive |
Produce more good parts in a given time.
Extended running times, low set up time, no - if not - low break downs, easy
to diagnose, quick to fix.
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Efficient
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Produce more parts from
material consumed, power used and money spent.
Good balance between - low owning cost v/s low operating cost.
Low maintenance cost - use of mass consumed, current technology, components
in construction ensures easy availability of spares at low costs.
Application specific customisation reduces the cost per piece produced. |
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Safe to work with
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Safe for humans, safe for moulds. |
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Durable |
Deterioration shall not be the reason for
replacement, but, a different requirement.
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Adaptable
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Not necessarily versatile. Versatility is
costly.
Modular construction makes it adaptable, may be upgradeable, as well. |
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Simple |
Simple in construction, for operation and for
maintenance.
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Pleasing
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Good looks. |
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Environment Friendly
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Use less power, oil, water and space.
Produce less waste to be disposed off. Less noisy. |
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SIGMA range has all the
ingredients to demonstrate characteristics of New Millennium Norms |
| Milacron India |
Competitor - A |
Competitor - B |
| Model |
Tie Bar Dia in mm |
Model |
Tie Bar Dia in mm |
Model |
Tie Bar Dia in mm |
| Sigma 30 |
45 |
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| Sigma 50 |
55 |
60 |
50 |
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| Sigma 80 |
70 |
85 |
55 |
80 |
65 |
| Sigma 110 |
80 |
100 |
55 |
130 |
70 |
| Sigma 150 |
85 |
150 |
70 |
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| Sigma 180 |
95 |
180 |
80 |
180 |
80 |
| Sigma 200 |
95 |
200 |
90 |
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| Sigma 275 |
115 |
250 |
90 |
250 |
100 |
| Sigma 400 |
135 |
450 |
120 |
350 |
120 |
| Sigma 500 |
160 |
500 |
120 |
450 |
140 |
CLAMP |
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Adjustable individual Pressure Setting of each stage
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Position based acceleration / deceleration for accurate position Switching
and control of speeds and pressures
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Programmable Clamp position with its feedback by linear transducer
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Programmable Ejector Stroke, Pressure and Speed
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Proportional Speed Control with 5 closing and opening speed
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Quick auto Clamp forces setting
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Safety Guard suitable for Robot / Sprue picker
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Sensitive Mould Protection with try again circuit
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Stage wise Actual Time Display
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Insert Moulding
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| INJECTION |
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Injection Velocity and Pressure Steps (6 Speed and 15 Pressure
profile)
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Adjustable Profile to switch over from fill to pack based on Position,Time
and Cavity pressure
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Aluminium Chequered Plate provided below Purge area
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Availability of auto heat startup and shutdown with timer based sprue
break facility
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Choice extended for Injection decompression before / after refilling or
both
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Extruder rpm adjustment on screen and actual rpm display
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Eyebolt provision for Barrel lifting
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Linear position Transducer assistance for real time read out and accurate
Control
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Nozzle Contact activation force by Limit switch
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PID
Control Algorithms for barrel heating zone
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Sprue break feature with timer
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User
Friendly design for Cold slug removal, Semi auto purge, Intrusion moulding
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| EJECTOR |
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Sequential
Ejector, speed adjustable through screen
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Ejector Stay Forward
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Intermediate Retract set point
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Linear Transducer provided for ejector position read out
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Pulsating
Ejector Strokes with ejector forward / retractd well timer
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Two-stage Ejector forward profile with soft eject
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| TEMPERATURE CONTROL |
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Accurate PID Temperature Controls settable through operator panel for
nozzle and barrel zones
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Actual Current Display of individual heating zone with heater failure
detection
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Feed
Throat Temperature Indication
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Heat
standby after set number of cycles
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High/Low Temperature Alarm Bands
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Set
and Actual Temperature data with bar graph
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Soak
timer for Cold start protection
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| HYDRAULICS |
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Hydraulic Controlled Variable Volume Pump
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Continuous oil filtration with 10 micron filter and audiable alarm for
filter clogging
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Ergonormic hydraulic layout for easy approach
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Pre-
heating circuit for hydraulic oil
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Low
oil level monitoring
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AVAILABLE OPTIONS |
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Hydraulic and Pneumatic Core pull
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T
Slot Platens (80 – 500 T)
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Hydraulic and Pneumatic Mould gate
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Hydraulic and Pneumatic power gate (275 T onwards)
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Auto
Toggle Lubrication (80 - 440T)
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Air
Ejection
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Jam
bar
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Electrical Unscrewing Interface
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Feed
throat Temperature Control
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Bimetallic Barrel
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Coated Injection Screw
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Injection switch over by Digital external input viz. Gas assisted
injection
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Injection switch over by Analog external input viz. Injection pressure /
Cavity pressure
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Insulated Heater Bands (32mm frame & above)
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Eject Retract Verification by Limit switch
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RPVC/CPVC
Package ((32mm frame & above)
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Host
Computer Interface
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Good
/ Defective Part Signal
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Water Battery with Temperature indicator
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SPI
Robot Interface
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Sprue break with Limit switch
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Closed loop injection
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Nozzel Contact Force by Pressure switch
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Tonnage on Screen
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Ejector on Fly ( factory fitted) and Retract Override
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PID
Oil Temperature Control
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Part
Drop Detect for Single Cavity
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Mould Cooling
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USB
Floppy Drive / USB mem stick for Data storing
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Gas
Assist Injection
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Energy Consumption display on Screen
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Injection Pressure Monitoring through Master Curves
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Internet Connectivity
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