Click here to see new mini 3 - 5 layer coex with oscillating nip
Laboratory Co-Extrusion Systems and Controls
The computer co-ex extruder controls can be incorporated on a central control panel, for instance when used for a co-extrusion line. Picture to the right shows the panel for a 3-layer co-ex film line and to the right on the screen are the three extruders shown. Here all parameters on extruders and downstream film blowing unit are controlled by touching respectively the symbol shown at the bottom of the screen.
5 Layer, (3)- 12.5mm Extruders with LCR-175 Co-Ex Chill Roll Cast Film Line with PC Data Acquisition Program
The Conical Extruder screws are easily removed from rear of gearbox with out disassembly of machine.
The extruder screw has a diameter of 12.5
mm and length 30D. The diameter of
the in-feed section of the screw has been increased to 20 mm in order to
allow
the feeding of regular sized pellets,
PC Windows Based Cast Film line Data Acquisition Software Screen Shot
LF-250 Blown Film 3 layer Co-Extrusion line with (3) 12.5mm, 30:1 extruders, with PC Windows Data Acquisition System
PC Windows Based Blown Film line Data Acquisition Software Screen Shot
LBCR-350 Co-Ex Cast Film Line with (3) 25mm 30:1 Extruders
Horizontal Roll Stack set up for PET-G
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Load Cell Windup Tension Control System |
 3 Layer Co-Ex Blown Film with Gravimetric Layer Thickness Control and Load Cell Tension Wind Up Control |
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Scientific Co-Extrusion Blown Film Systems
For Quality Control, Product Development
Blown film co-ex lines are
available with up to 9 layers
7 layer co-ex with 7 extruders (25mm - 45mm) Shown:
Integrated central computer control or analog control.
Available 12.5mm, 20mm, 25mm, 30mm, and 45mm single screw extruders, vented or non vented barrels (25mm & up)
Optional Oscillating haul off is also available.
Click here to see startup of 12.5mm coex blown film line
Scientific Co-Extrusion Cast Film and Sheet Systems
For Quality Control, Product Development
Cast film co-ex lines are available with up to 7 layers
Integrated central computer control or analog control.
Available 12.5mm, 20mm, 25mm, 30mm, and 45mm single screw extruders, vented or non vented barrels (25mm & up).
Click here to see cast line startup movie
U.S.A. to Metric CONVERSION CHART
| TO CONVERT TO MILLIMETERS: MULTIPLY INCHES X 25.4 |
| TO CONVERT TO INCHES: MULTIPLY MILLIMETERS X 0.03937* |
|
*FOR SLIGHTLY GREATER ACCURACY WHEN
CONVERTING TO INCHES: DIVIDE MILLIMETERS BY 25.4 |
| INCHES | METRIC | INCHES | METRIC | INCHES | METRIC | |||
| FRACTIONAL | DECIMAL | mm | FRACTIONAL | DECIMAL | mm | FRACTIONAL | DECIMAL | mm |
| . | 0.0039 | 0.1000 | . | 0.5512 | 14.0000 | . | 1.8898 | 48.0000 |
| . | 0.0079 | 0.2000 | 9/16 | 0.5625 | 14.2875 | . | 1.9291 | 49.0000 |
| . | 0.0118 | 0.3000 | . | 0.5709 | 14.5000 | . | 1.9685 | 50.0000 |
| 1/64 | 0.0156 | 0.3969 | 37/64 | 0.5781 | 14.6844 | 2 | 2.0000 | 50.8000 |
| . | 0.0157 | 0.4000 | . | 0.5906 | 15.0000 | . | 2.0079 | 51.0000 |
| . | 0.0197 | 0.5000 | 19/32 | 0.5938 | 15.0813 | . | 2.0472 | 52.0000 |
| . | 0.0236 | 0.6000 | 39/64 | 0.6094 | 15.4781 | . | 2.0866 | 53.0000 |
| . | 0.0276 | 0.7000 | . | 0.6102 | 15.5000 | . | 2.1260 | 54.0000 |
| 1/32 | 0.0313 | 0.7938 | 5/8 | 0.6250 | 15.8750 | . | 2.1654 | 55.0000 |
| . | 0.0315 | 0.8000 | . | 0.6299 | 16.0000 | . | 2.2047 | 56.0000 |
| . | 0.0354 | 0.9000 | 41/64 | 0.6406 | 16.2719 | . | 2.2441 | 57.0000 |
| . | 0.0394 | 1.0000 | . | 0.6496 | 16.5000 | 2 1/4 | 2.2500 | 57.1500 |
| . | 0.0433 | 1.1000 | 21/32 | 0.6563 | 16.6688 | . | 2.2835 | 58.0000 |
| 3/64 | 0.0469 | 1.1906 | . | 0.6693 | 17.0000 | . | 2.3228 | 59.0000 |
| . | 0.0472 | 1.2000 | 43/64 | 0.6719 | 17.0656 | . | 2.3622 | 60.0000 |
| . | 0.0512 | 1.3000 | 11/16 | 0.6875 | 17.4625 | . | 2.4016 | 61.0000 |
| . | 0.0551 | 1.4000 | . | 0.6890 | 17.5000 | . | 2.4409 | 62.0000 |
| . | 0.0591 | 1.5000 | 45/64 | 0.7031 | 17.8594 | . | 2.4803 | 63.0000 |
| 1/16 | 0.0625 | 1.5875 | . | 0.7087 | 18.0000 | 2 1/2 | 2.5000 | 63.5000 |
| . | 0.0630 | 1.6000 | 23/32 | 0.7188 | 18.2563 | . | 2.5197 | 64.0000 |
| . | 0.0669 | 1.7000 | . | 0.7283 | 18.5000 | . | 2.5591 | 65.0000 |
| . | 0.0709 | 1.8000 | 47/64 | 0.7344 | 18.6531 | . | 2.5984 | 66.0000 |
| . | 0.0748 | 1.9000 | . | 0.7480 | 19.0000 | . | 2.6378 | 67.0000 |
| 5/64 | 0.0781 | 1.9844 | 3/4 | 0.7500 | 19.0500 | . | 2.6772 | 68.0000 |
| . | 0.0787 | 2.0000 | 49/64 | 0.7656 | 19.4469 | . | 2.7165 | 69.0000 |
| . | 0.0827 | 2.1000 | . | 0.7677 | 19.5000 | 2 3/4 | 2.7500 | 69.8500 |
| . | 0.0866 | 2.2000 | 25/32 | 0.7813 | 19.8438 | . | 2.7559 | 70.0000 |
| . | 0.0906 | 2.3000 | . | 0.7874 | 20.0000 | . | 2.7953 | 71.0000 |
| 3/32 | 0.0938 | 2.3813 | 51/64 | 0.7969 | 20.2406 | . | 2.8346 | 72.0000 |
| . | 0.0945 | 2.4000 | . | 0.8071 | 20.5000 | . | 2.8740 | 73.0000 |
| . | 0.0984 | 2.5000 | 13/16 | 0.8125 | 20.6375 | . | 2.9134 | 74.0000 |
| 7/64 | 0.1094 | 2.7781 | . | 0.8268 | 21.0000 | . | 2.9528 | 75.0000 |
| . | 0.1181 | 3.0000 | 53/64 | 0.8281 | 21.0344 | . | 2.9921 | 76.0000 |
| 1/8 | 0.1250 | 3.1750 | 27/32 | 0.8438 | 21.4313 | 3 | 3.0000 | 76.2000 |
| . | 0.1378 | 3.5000 | . | 0.8465 | 21.5000 | . | 3.0315 | 77.0000 |
| 9/64 | 0.1406 | 3.5719 | 55/64 | 0.8594 | 21.8281 | . | 3.0709 | 78.0000 |
| 5/32 | 0.1563 | 3.9688 | . | 0.8661 | 22.0000 | . | 3.1102 | 79.0000 |
| . | 0.1575 | 4.0000 | 7/8 | 0.8750 | 22.2250 | . | 3.1496 | 80.0000 |
| 11/64 | 0.1719 | 4.3656 | . | 0.8858 | 22.5000 | . | 3.1890 | 81.0000 |
| . | 0.1772 | 4.5000 | 57/64 | 0.8906 | 22.6219 | . | 3.2283 | 82.0000 |
| 3/16 | 0.1875 | 4.7625 | . | 0.9055 | 23.0000 | . | 3.2677 | 83.0000 |
| . | 0.1969 | 5.0000 | 29/32 | 0.9063 | 23.0188 | . | 3.3071 | 84.0000 |
| 13/64 | 0.2031 | 5.1594 | 59/64 | 0.9219 | 23.4156 | . | 3.3465 | 85.0000 |
| . | 0.2165 | 5.5000 | . | 0.9252 | 23.5000 | . | 3.3858 | 86.0000 |
| 7/32 | 0.2188 | 5.5563 | 15/16 | 0.9375 | 23.8125 | . | 3.4252 | 87.0000 |
| 15/64 | 0.2344 | 5.9531 | . | 0.9449 | 24.0000 | . | 3.4646 | 88.0000 |
| . | 0.2362 | 6.0000 | 61/64 | 0.9531 | 24.2094 | 3 1/2 | 3.5000 | 88.9000 |
| 1/4 | 0.2500 | 6.3500 | . | 0.9646 | 24.5000 | . | 3.5039 | 89.0000 |
| . | 0.2559 | 6.5000 | 31/32 | 0.9688 | 24.6063 | . | 3.5433 | 90.0000 |
| 17/64 | 0.2656 | 6.7469 | . | 0.9843 | 25.0000 | . | 3.5827 | 91.0000 |
| . | 0.2756 | 7.0000 | 63/64 | 0.9844 | 25.0031 | . | 3.6220 | 92.0000 |
| 9/32 | 0.2813 | 7.1438 | 1 | 1.0000 | 25.4000 | . | 3.6614 | 93.0000 |
| . | 0.2953 | 7.5000 | . | 1.0039 | 25.5000 | . | 3.7008 | 94.0000 |
| 19/64 | 0.2969 | 7.5406 | . | 1.0236 | 26.0000 | . | 3.7402 | 95.0000 |
| 5/16 | 0.3125 | 7.9375 | . | 1.0433 | 26.5000 | . | 3.7795 | 96.0000 |
| . | 0.3150 | 8.0000 | . | 1.0630 | 27.0000 | . | 3.8189 | 97.0000 |
| 21/64 | 0.3281 | 8.3344 | . | 1.0827 | 27.5000 | . | 3.8583 | 98.0000 |
| . | 0.3346 | 8.5000 | . | 1.1024 | 28.0000 | . | 3.8976 | 99.0000 |
| 11/32 | 0.3438 | 8.7313 | . | 1.1220 | 28.5000 | . | 3.9370 | 100.0000 |
| . | 0.3543 | 9.0000 | . | 1.1417 | 29.0000 | 4 | 4.0000 | 101.6000 |
| 23/64 | 0.3594 | 9.1281 | . | 1.1614 | 29.5000 | . | 4.3307 | 110.0000 |
| . | 0.3740 | 9.5000 | . | 1.1811 | 30.0000 | 4 1/2 | 4.5000 | 114.3000 |
| 3/8 | 0.3750 | 9.5250 | . | 1.2205 | 31.0000 | . | 4.7244 | 120.0000 |
| 25/64 | 0.3906 | 9.9219 | 1 1/4 | 1.2500 | 31.7500 | 5 | 5.0000 | 127.0000 |
| . | 0.3937 | 10.0000 | . | 1.2598 | 32.0000 | . | 5.1181 | 130.0000 |
| 13/32 | 0.4063 | 10.3188 | . | 1.2992 | 33.0000 | . | 5.5118 | 140.0000 |
| . | 0.4134 | 10.5000 | . | 1.3386 | 34.0000 | . | 5.9055 | 150.0000 |
| 27/64 | 0.4219 | 10.7156 | . | 1.3780 | 35.0000 | 6 | 6.0000 | 152.4000 |
| . | 0.4331 | 11.0000 | . | 1.4173 | 36.0000 | . | 6.2992 | 160.0000 |
| 7/16 | 0.4375 | 11.1125 | . | 1.4567 | 37.0000 | . | 6.6929 | 170.0000 |
| . | 0.4528 | 11.5000 | . | 1.4961 | 38.0000 | . | 7.0866 | 180.0000 |
| 29/64 | 0.4531 | 11.5094 | 1 1/2 | 1.5000 | 38.1000 | . | 7.4803 | 190.0000 |
| 15/32 | 0.4688 | 11.9063 | . | 1.5354 | 39.0000 | . | 7.8740 | 200.0000 |
| . | 0.4724 | 12.0000 | . | 1.5748 | 40.0000 | 8 | 8.0000 | 203.2000 |
| 31/64 | 0.4844 | 12.3031 | . | 1.6142 | 41.0000 | . | 9.8425 | 250.0000 |
| . | 0.4921 | 12.5000 | . | 1.6535 | 42.0000 | 10 | 10.0000 | 254.0000 |
| 1/2 | 0.5000 | 12.7000 | . | 1.6929 | 43.0000 | 20 | 20.0000 | 508.0000 |
| . | 0.5118 | 13.0000 | . | 1.7323 | 44.0000 | 30 | 30.0000 | 762.0000 |
| 33/64 | 0.5156 | 13.0969 | 1 3/4 | 1.7500 | 44.4500 | 40 | 40.0000 | 1016.0000 |
| 17/32 | 0.5313 | 13.4938 | . | 1.7717 | 45.0000 | 60 | 60.0000 | 1524.0000 |
| . | 0.5315 | 13.5000 | . | 1.8110 | 46.0000 | 80 | 80.0000 | 2032.0000 |
| 35/64 | 0.5469 | 13.8906 | . | 1.8504 | 47.0000 | 100 | 100.0000 | 2540.0000 |
Typical Mixing Screw for Single Screw Extruders, 30:1, Maddock Mixer and Pineapple Mixer
QUICK TIPS FOR PURGING PLASTIC
Chemically enabled Plastic Purging Compounds like XPD8® are
heat activated. To achieve optimum results, you must raise your heats
in the areas that you know problems are likely to occur. Such as: 
Dies
Areas of Negative Flow
Sharp Angles in The Flow Path
Blow Molding Heads
However, in areas that you feel you don't have a problem, do not deviate
from normal heat profiles recommended
The Feeder Zone in Injection Molders
Straight Screw and Barrel in Extrusion Systems
By following these guidelines, you will be assured that the chemical
activity of the Purging Compound will be used where it is needed and not
prematurely expended and wasted in areas where it is not necessary.
RBM suggests
that every time you have a prolonged shutdown of your equipment to
employ the amazing abilities of XPD8® High
Performance Plastic Purging Compounds to give you worry free restarts
time after time.
XPD8® Compounds
will not freeze up your screws, will never plug up a die head, and will
guarantee an easy start up after a prolonged shutdown without any
problems at all.
Note: Milabtech LLC is providing this information as a service, and is not responsible for results. If you have any questions, contact the manufacturer below.
Click this link for a video on purging
Call (810) 519-6122 or (810) 516-1700 or (810) 516-1700 for Pricing
14042 Iroquois Woods Dr.
Fenton, Michigan 48430