mohd ahmad qamar

1. Practical values of melt correction factor for use in
calculation of shot weight for some common
plastics
Shot weight = melt correction factor x swept volume in cc
The melt correction factor takes into account the change in
volume at process temperature and also includes a factor for
the flow characteristics of the shut off device on the end of the
screw
HD-PE 0.75
LD-PE 0.73
PP 0.73
PS 0.91
SB 0.91
ABS 0.91
SAN 0.91
PA 0.93
PA 6 + 30% GF 1.14
PC 0.97
POM 1.15
PET 1.08
PBT 1.08
CA 1.03
CAB 0.98
PVC - s 1.05
PVC - r 1.15
Thermoset - PF 0.96
PC / ABS alloy 0.94
PMMA 0.97
Material Melt Correction Factor
PPM/2007/08/rev.01
Bangalore
Chandigarh
Chennai
Coimbatore
38, Cubbon Road, P.O. Box 5098,
Bangalore 560 001
Tel : 080-25020100/0236, Fax : 080-25536397
e-mail : kumarps@larsentoubro.com
32, Sector 26-D, Madhya Marg,
P.O.Box 14, Chandigarh -160 019.
Tel : 0172-4646846, Fax : 0172-4646802
e-mail : agarwals@larsentoubro.com
10, Club House Road, Anna Salai,
Chennai 600 002
Tel : 044-28462034, Fax : 044-28462088/2152
e-mail : kumarps@larsentoubro.com
123, Appuswamy Road,
Coimbatore 641 045
Tel : 0422-2311562, Fax : 0422-2313881
e-mail : kumarps@larsentoubro.com
SALES & CUSTOMER SUPPORT CENTRES :
Hyderabad
Kolkata
Mumbai
New Delhi
2nd & 3rd Floor, SUMMIT,
5-10-188/2,Hill Fort Road, Hyderabad 500 004
Tel : 040-66720000, Fax : 040-23242356
e-mail : kumarps@larsentoubro.com
3B, Shakespeare Sarani,
Kolkata 700 071
Tel : 033-22825138,
Fax : 033-22827587 / 22821025
e-mail : manoranjans@larsentoubro.com
EPC Block, 5th Floor, ‘A’ Wing,
Gate No.1, Powai West, Mumbai 400 072
Tel : 022-67053580/3688/1147
Fax : 022-67051309
e-mail : amarendranath.sasmal@hed.ltindia.com
32, Sivaji Marg, P.O. Box 6223,
New Delhi 110 015
Tel : 011-41419585/87, Fax : 011-41419518/9600
e-mail : agarwals@larsentoubro.com
Pune
Vapi
Vadodra
191/1, Dhole Patil Road,
P.O. Box 119, Pune 411 001
Tel : 020-26113557, 56033355 Fax : 020-26113557
e-mail : rpsingh@larsentoubro.com
19/23, Mohid Towers, Vapi-Daman Road,
Chala, Vapi 396 195
Cell : 93273 74710
e-mail : amarendranath.sasmal@hed.ltindia.com
Radhadaya Complex, Near Charotar Society
Old Padra Road, Vadodara 390 015
Tel : 0265-2343238, Fax : 0265 2336184
e-mail : amarendranath.sasmal@hed.ltindia.com
L&T - Demag Plastics Machinery Limited
Chembarambakkam
Off - Chennai - Bangalore Highway
P.O. Box No. 5
Chennai - 602 103
Phone : +91-44-26812000, Fax : +91-44-26810303
E-mail: sales@ltdemag.com
MANUFACTURED BY HEAD OFFICE
Plastics Processing Machinery, LTM Business Unit
Mount Poonamallee Road
Manapakkam, Chennai 600 089. India.
Tel: +91-44-22491932 / 22497360
Fax: +91-44-22492471
E-mail: sales@ltdemag.com
ppmmktg@ltmindia.com
LARSEN & TOUBRO LIMITED
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All manifold blocks & valves mounted close to the actuators for
fasterresponse
Oiltankwithlargeopeningforcleaning
Preheatingcircuitforhydraulicoil
Oiltemperatureregulatedwithtemperatureindication
Connectors for external oil filtration during production (bye pass
filtration)
Automaticmonitoringofoilfiltercloggingwithadvancewarningand
readout
Pump unit switched off if minimum oil level is reached or if the oil
filteris100%blocked
Productionstoppedifoiltemperatureexceedsmaximumvalue
Highpressurefilterwithcloggingindication
Externaloilcooler
Digital principle of control for speed and pressure for consistent and
reliableperformance
Fastrespondingandnon-agingcatridgelogicelements
Fastrespondinghydraulicdoorsafetyinterlock
Energysavingpumpswitchofffeatureincaseofidlerunning
Intelligent operator terminal with large multi colour LCD display
andalphanumerickeyboard(10.5")
Easysettingofparametersthroughgraphicsusingmousewheel
3.5”discdriveforloadingErgocontrolandPLCsoftwareandalsofor
storingmachinesettingdata
CAN bus as field bus linking the Ergocontrol and machine
controllers
Position measuring system for moving platen, ejector, and screw
travel
Setpoint input on the Ergocontrol in physical values (bar, cc,
mm/sec, screw rpm) or speeds for mould, ejector, core puller and
nozzleasapercentageofmaximumvalue
Graphics supported input of set point profiles for injection speed,
follow up pressure, back pressure and screw speed as an alternative
toentryofnumericalvalues
2screensfreeforentryofgeneraldata(setupinformation)
Continuous Process control via monitoring of important process
parameterswithselectabletoleranceband
Mouldingcounterpreselectionwithautomaticswitchofffeature
Shiftandbatchproductioncounterswithrejectionmonitoring
Fault diagnostics in the event of machine malfunction or operator
errorwithplaintextmessagesandrecordingofsourceoferror
Automaticswitchoffmouldcoolingintheeventoffaultinthecycle
Printerinterface(centronics)throughparallelport
PDSProcessdataacquisitionPDEwithstatisticsandgraphics
Measurement of cycle, injection, plasticising and mould protection
times
Regulatedpowersupply24VDCforcontrolsandactuators
Setofelectricaloutlet-SingleÆ(1x10A)&3Æ(1x16A)
Socketforprinter
Multilevelpasswordforpreventingtamperingofparameters
Smartcardreaderforpreventingunauthorisedaccess
Flashlamp/Acousticsalarm
Hotrunnercontrolledintegrated(upto16zones)
Flexiblemotionsequencesforcoresandejectors
Digitalsettingofalltimes,settingrangeinseconds
Function wise layout of pages(screens) and ergonomical display of
variousprocessparameters/dataincleartext
Heatercurrentdisplaydevice(uptoIU900only)
PID control loops and semiconductor relays for cylinder heating
system
Self Optimising PID control loops and semiconductor relays for
cylinderheatingsystem
Mainvoltage415V/3ph/50Hz,controlvoltage24VDC/220V
Internalstorageofupto60mouldsetprogrammers
Injectionspeedsettableinmm/secandpressuresettableinbar
Injecton speed settable in 63 steps and pressure settable in 127
steps
PCconnectivityforadditionalstorageofmouldcatalogue
Switchonprogrammeforoilpreheatingandcylinderheating
Controls
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Energyindicationonoperatorpanel
SPCandCPkwithgraphicaldisplay
Machine troubleshooting module indicating clear direction to
resolveproblems
Hotrunnershutoffdevice(pneumatic/hydraulic)
Remoteaccessofcontrolpages
Downtimelog
Strat up module for automatic selection of process parameters
(Ergostart)
Insulatedheaterbands
Autoswitchoffprogramme-purgingw/ohoppershutoff
Languageoptions
Programmableautomaticswitch-offmatrix
Networkingofmachines
Guarded machine enclosure with space for protruding moulds and
peripheralconnections
Onepiecemachinebed(upto350)
SafetyequipmentasperEN201
Flexiblemachinesupportwithantivibrationmounts
Totalpreventivemaintenence
Threewayaccessforeasypartremoval
CompletecoverontheInjectionunitfrontside
Mouldclamps-8numbers
Separate oil filter for fine straining (Bypass filtration); integrated in
themachine
Threecolorlamp(onlyinLNC)
Singlephasepreventor
Connection for additional heater band - only plug will be with the
machine
32 pole signal interface in accordance with VDMA for robots/sprue
picker(E12)
Euromap67interface
Rotatingcoreinterface
Mould protection by monitoring ejector back sensing using limit
switch(1no.)inmould
Interfaceforejectorlimitswitch(2nos)inthemould
Sensor interface for monitoring drop of mountings with photocell
option
FreelyprogrammableI/O's(Max.2I/O-LNC5,6I/O-Ergo)
3Stagestartupprogramme
Automaticprinterprogramme
Thermalprinter
Interfaceforindexingconveyor/floatingcontact
Blendingunitinterface
Chiller/peripheralfaultinterface
Amendmentreportlog
Interfacewithgasassistedmoulding
Interfaceforquickmouldchange
Interfaceforcavitypressuresensor-upto2channels
Interfaceforadd.nozzleheaterband(plugonly)
Interfaceforslidecoresafetycontrol
Interface upto 4 temperature control units, 3 point controller -
Outputsforheatingandcooling
CANinterfacefortemperaturecontroldevice-upto2circuits
Interface mould temperature display on IBED; upto 2 - mould
circuits
ThermalprinterintegratedinErgocontrol
TPMprogram
HelpMenu
Process data storage (on floppy in ergocontrol/download in excel
formatinLNC)
Flexiblemotionsequence-CU-IU(coreandejectormovement,IU)
Insertloadingsequence
Processtroubleshooting(Ergoexpert)
Injectioncompressionsequence
Breathingsequence
General
Functions/Interfaces
√ ●- Standard - Option
NA - Not Available NEC - No extra cost, ALT - Alternative Equipment
40 - 650

2. FEATURES
LNC5 ERGOClampingunit
InjectionUnit
Computer optimised 5-point twin toggle system, for fast, smooth
platenmovementandevendistributionofclampforce
Moving platen supported on the machine bed by anti-friction roller
bearings
Mould opening and ejector forward with safety guard open /closed
position
Mould mounting dimensions as per Euromap - Threaded holes
upto 300T and T-slot from 350T (with ejector holes on Moving
platenforEuromap/JIS)
Add-onT-slotplatesupto150T,IntegralTslot180Tto300T
MouldMountingdimensionsasperDIN/SPIstandards
Drillholepatternforrobot/spruepicker
Rearsafetyguardsuitableforrobot/spruepicker
Hardchromeplatedtiebars
Toggle bearings oil/grease lubricated: lubrication signals
computeroptimisedunderadaptivecontrol
Motorised mould height adjustment through sun & planetary gear
mechanism
Consistent mould open stop position using stroke adjustment
mechanismincylindersetmanually
Consistent mould open stop position using mould open
proportionalvalve
Closed loop clamp force control on control panel with indication
andcorrectioneverycycle,settable
Closing and opening speeds independently set: each
programmablein3stages
Regenerativecircuitinmouldclosingforhigherspeeds
Lowpressuremouldsafety,settable
Mould protection with stroke dependent change over with time
monitoring and repeat of a clamping cycle aborted in the protected
range
Central hydraulic ejector with multiple stroke features and fast
coupling;pressureandspeedindependentlysetinbothdirections,
ejectorspeedprogrammablein2stages
Mould cooling water switch off in case of interruption of cycle, with
settabletimer
Waterbattery-4foldupto250T; 6foldabove250T
Hydraulic ejector parallel to mould movement with speed and
pressuremanuallyadjustable
Shortandlongstrokeejector,freelyprogrammable
MultipointejectorplateasperEuromap
MultipointejectorplateasperJIS
Waterbattery-6/8/12fold
1,2,3or4pneumaticvalves(5/2type)freelyprogrammable
Core pulling control for 1,2,3 or 4 hydraulic/pneumatic cores
independently programmable for sequential operation or parellel
operation
Hydraulic ejector/core parellel to mould opening with independent
control of speed and pressure through proportional valve; ejector
andcorewithserialmovementtoeachother
Good/badpartsselector,viacontinousprocesscontrol
Automatic mould height adjustment through proximity switch
(upto350T)
AutomaticmouldheightadjustmentthroughLinearpot
Foolproofhydraulicalandelectricalinterlocksforsafetygates
StainlessSteelDischargechuteupto250T
Elevatedbaseforcleanroom
Additional 4/6/8/10/12 water manifold with Original Italy make
ballvalvecontrolwithStainlesssteelSS304.
Pneumaticoperatedsafetydoor
CentralEjectorrod(asperm/cmanual)
Connectionsfor2corepullcontrolsatfixedplaten
Nonreturnvalveofejector(formouldswithspringloadedejectors)
MultipointEjectorRods(M12Internalthreadsononeend)
Injectionunitwithtorque-freenozzlecontactwith2cylinde
Injection unit speed of nozzle advance and retraction
programmablein2stages
Nozzlecontactpressureprogrammable
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Injection speed, follow up pressure and screw speed controlled by
fastresponseDFEpump
Directscrewdrivebyhydraulicmotor1forhighspeeds
HydraulicmotorIIhightorque
Screw cylinder fitted with universal thermoplastics nitrided screw
and nitrided cylinder: non-return valve and cylinder closure
assemblywithSVOopennozzle
Screw cylinder suitable for upto 3 injection units: L/D ratio 20:1 for
alldiameters
Fast cylinder change with central connectors for heating system
and thermocouples and with automatic cylinder identification
(from430IU)
Ceramiccylinderheatingbands
PIDcontrolledbarrelheaterbands
5 self-optimising temperature control circuits for the cylinder and
nozzle heating system with adjustable tolerance monitoring of
deviation from set point and thermocouple break resistance;
operatingrangeofupto400°C
4/5 temperature circuits for cylinder heating with monitoring
ofdeviationandthermocouplestatus
Temperatureofthescrewcylinderfeedzoneadjustable
Injection speed profile programmable in * position dependent
interpolationstages
Follow up pressure profile programmable in * time dependent
interpolationstages
Follow up pressure switching activated as a function of position,
timeorhydraulicpressure
Screw speed and back pressure control, profile programmable in *
positiondependentinterpolationsteps
Screwspeedinputin*
Injectionspeedinputin*
Monitoringofmeltcushionduringthefollowuppressurephase
Hydraulic screw retraction after follow up pressure phase and or
afterplasticisingprocessprogrammabledependentonposition,to
preventmeltdrooling
Delay feature for commencement of plasticising and nozzle
retraction
Screwrotationlockengageduntilcylinderreachessettemperature
Reduction in cylinder temperatures to a preset value during
machineidletime
Nozzleguardwithelectricalinterlockforoperatorsafety
Intrusionandcoldslugremoval
Stainlesssteelhopper
Extendednozzlewithheaterband
Hydraulicallyoperatedshutoff nozzle(SVH)
Electricalscrewdriveforparellelplasticizing(fromIU840-10500)
Spruebushtemperaturecontrol
Special Barrier screws for better homogenization and plasticising
ratesfromscrewdia30
Wear resistant through hardened screw and bimetallic barrel for
abrasivematerials
Proven screw Geometry for high plasticising capacities with
excellentmelthomogeneity
Thermosetpackageandsequencesdia30to50
CPVC/RPVC/PETpackage
25L/Dscrew(forAandB)
Hardchromeplatedscrew
Meltfilternozzlefromscrewdia30
Dosingdelaytimer
Coldstartprotectionforscrew
Nozzle contact force setting through control panel with residual
nozzlecontactforce
Fast injection with accumulator, programmable (from 150T
onwards)
Melttemperaturemeasuring(SVO)
Injectionclosedloopwithservovalve
Pumpunit1withenergysavingSYDFEEregulatedpump
Variabledisplacementpumpforenergyconservation
Low noise drive with quiet pumps sound insulating enclosures for
hydraulics
Pressures and flow rates, closed loop, controlled by fast
respondingDFEregulatedpump
Hydraulics
mm/s
cc/s
rpm
mm/s
L
B
H
kN
kN
mm
mm
mm
mm
mm
kg
kg
mm
kN
L
kg
mm
mm
mm
lpm
2300-55
3900E-55/75*
7000-75/90*
1400 2000
2000
5000
Injection Moulding Machine (Detech SERIES)
Clamping Unit
1400
5000
2100 2400
9735 for IU2300
10590 for IU3900E
2300 2400
9735 for IU 2300
10590 for IU3900E
11210 for IU7000
8290
2400
3900E-55/75*
7000-75/90*
10500-90/110*
* Optional pump / injection unit
+Optional opening stroke
##7200 for IU 600&900
7940 for IU 1400 &2350
5600
1800
5600
1800
650/1000
300
139/57
1880
1450x1350
1000x900
8600
6500
7150
810 980
5700
930
450/950380/820 380/900
760/1300***
31200/33200/35100
2480
120
10630 for IU3900E
11225 for IU7000
11965 for IU10500
2475
6050
1880
550/870
5500
40/320 60/320 85/420 100/420 200/580
400 600 850 1000 2000
440 660 935 1100
575310 310 380 380
1630
180/410 180/410 200/530 200/530
1365
340/790
720
1265x1265
870x870
860x860
810x810
1200x1200
580x580
7000
630x630
420 420 700 700
4500
2250 51003500
100 120 120
34002300
230180 200
180 180 285 285 ##400/580
90/45
760
69/31 70/39
580
3200 3200 4300 4300
40 60 60
80-11
120-11
200-11
310-11
120 120
2400
120
20900/21900/24300
90/45
760/1300**
600
330/770
1370
940x940
40
2300-55
3900E-55/75*
** For IU7000
2400
9735 for IU 2300
10590 for IU3900E
11210 for IU7000
800/980+
380/900
1265x1265
5500
1700/1880+
500/870
5000
870x870
7000
4500
230
120
2400
20900/21900/24300
90/45
760/1300**
2300-55
3900E-55/75*
7000-75/90*
900-30/37*
1400-30/37/45*
2350-37/45*
600 -30/37*
900-30/37*
1400-30/37/45*
2350-37/45*
200-15
310-15/22*
430-22*
80 -11
120-11
310-15/22*
430-22
600-22
2160
##10000/11000
*** For IU7000/10500
Total Mould carrying capacity
Max.mould.wt.in moving platen
Hydraulic Ejector stroke
Ejection Force/Retraction Force
Oil Tank Capacity
Max.Daylight between Platens
Overall Size of Platens
Distance between Tiebars
Clamping Force
Locking Force
Mould Opening Stroke
Mould Height(Min/Max)
Net Weight (Without oil)
Dimensions of machines
Cooling water requirement
Injection Unit applicable & Pump unit (kW)
## -200/580 With 600/900 IU
2000
120
2000
20900/2190013200/14200
45/2545/2528/13
2000
28/13
230
1500450450280280
100
720
420x420420x420320x320320x320
480x480 480x480 600x600 600x600
910910
125/510
1250
200/550
720x720
510x510
1100
160
45/25
310-22
430-22
600-22
900-22
6500
6650
1600
60
2000
310
700
1375
450
1000
150/510
1500
200/550
720x720
510x510
1100
160
45/25
310-22
430-22
600-22/30*
900-22/30*
6500
6650
60
2000
1600
310
700
1650
450
1000
4500
450/810
49502200
325/630
3250
3575
B C A B C A B C A B C A B C D A B C A B C
50 60 50 60 70 60 70 80 60 70 80 70 80 90 95 80 95 110 95 110 130
20 20 20 20 20 20 20 20 20 20 20 23 20 20 20 24 20 20 23 20 20
2022 1404 2565 1780 1300 2420 1877 1437 2557 1878 1438 2423 1855 1516 1316 2391 2094 1562 2434 2006 1436
442 636 530 820 1116 891 1212 1584 919 1251 1634 1636 2137 2704 3013 2388 3367 4515 3899 5227 7300
402 579 482 746 1016 811 1103 1441 836 1138 1487 1489 1944 2461 2742 2173 3064 4108 3548 4756 6643
159/223/313 228/322/450 176/246/301 253/355/433 345/483/590 373 508 663 230/281 313 /383 409/500 393/447 513/584 650/739 724/823 406/490 572/691 767/926 538/634 721/851 1007/1188
37/52/- 56/-/- 26/36/45 40/58/70 58/82/99 60 87 122 56/69 81/99 114/139 59/65 83/91 101/110 133/146 62/78 100/125 144/181 80/98 116/141 164/200
22/31/43 33/46/65 - - - 41 59 83 33/40 48/58 67/82 48/52 67/74 81/90 108/119 41/51 66/82 95/119 54/66 78/95 110/135
- - - - - - - - - - - - - - - - - - - -
270 290 290
14.8 23.1 14.8 23.1 27 23.1 27 30.6 23.1 27 30.6 31 31 43 43 43 43 59 59 59 79
110
315
55 90/110
110
45
75/90
550
45
110
45
475325 425
70
45
68 70
37/45 55/75
110
20 45
Specifications are subject to change due to continuous improvements
30/37/4522/30/37
225
45
A
45
20
2496
358
325
128/181/253
24.5/35/-
14.5/20/28.5
-
11.3
A B C A B C A B C A B C A B C A B C
mm 18 22 25 22 25 30 25 30 35 30 35 40 35 40 45 40 45 50
20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
bar 2778 1860 1440 2591 2006 1393 2740 1900 1400 2755 2024 1550 2644 2025 1600 2448 1934 1567
cc 23 42 54 42 61 88 61 106 144 106 168 220 168 231 293 231 323 399
g 21 38 49 38 56 80 56 96 131 96 153 200 153 210 266 210 294 363
cc/s 73 109 141 78 101 146 71/71 102/102 139/139 74/74/116 100/100/158 131/131/207 121 158 200 132/186/261 167/236/330 207/291/408
g/s 4.5 7.5 14 7.5 13 19 12/12 16/16 22/22 13/13/21 18/18/28 25/25/39 21.5 31 44 25.5/30/- 36/-/- 48/-/-
g/s 4 6.5 12 5.5 10 14 9.5/9.5 13.5/13.5 18/18 10.5/10.5/16.5 14/14/22 20/20/31 18 25.5 36 20/23/28 28/32/39 38/44/52
g/s - - - - - - - - - - - - - - - 15/20/22 22/26/31 30/42/47.5
mm 90 110 110 110 125 125 125 150 150 150 175 175 175 184 184 184 203 203
mm
kN
kW 5 5.1 5.7 5.1 5.7 8.3 5.7 8.3 9.4 8.3 9.4 11.1 9.4 11.1 11.3 11.1 11.3 14.8
kW
Injection Moulding Machine (Detech SERIES)
Theoretical value, actual value depends on material grade, melt density
45 45
68 68 68 68
20 20
68
1400 23502300 105003900E 7000900430 60080 120 200 310Injection Unit Size
Plasticising flow in PS#
Max.Nozzle dipping depth(SVO)
Nozzle Contact force
Heating Capacity
Pump unit
Shot weight in Polystrene(PS)
Rate of Injection in PS#
Screw Stroke
Stage I
Stage II
Stage III
Screw Cylinder
Screw Diameter
L/D Ratio
Injection Pressure
Cylinder Head Volume
#Achieved in air injection
22/30/372211 11 11/15* 11/15/22
68
4545