Arsenal of Industry

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Arsenal Co-Ex 3

Arsenal Co-Ex 3

Three layer blown film coextrusion line

• Over 30 various types of film from HDPE, LDPE, LLDPE, mLDPE, MDPE, EVA made on a single extrusion line employing know-how’s used by domestic and foreign companies;
• Production of heat-shrinkable films, stretch films, twist effect film, films for milk and frozen food packaging, foamed films, etc.;
• Parts from leading international manufacturers;
• Maximum automation and latest electronic control system;
• Film gauge variation of no more than ±5%;
• Can be equipped with either oscillating haul-off or a rotating joint.

Technical characteristics

Types of processed films	LDPE, HDPE, LLDPE, MDPE, EVA
Film width, mm	900-1500
Winder roll width, mm	1600
Film thickness, mm	0.008-0.15 (depends on the material)
Max. output rate, kg/hour	Up to 350
Color	Grey RAL 9018/blue RAL 5002
Weight, kg (approx.)	15,000
Dimensions (LxWxH), mm	10,500x6,000x11,500
Electric, water, compressed air supply
Electric supply	380 V, 50 Hz, 3 phase
Max. allowed voltage fluctuation	±5%
Installed power	200 KW
Max. water consumption	1.5 m³/hour
Compressed air pressure	7 atm
Max. Compressed air consumption	3 m³/hour

THREE ARSENAL CO-EX 60 MM 33:1 L/D EXTRUDERS

The latest developments in extrusion technology dramatically increase quality of the end product. Higher gauge tolerances and better roll shape make the new generation of machines most competitive.

The most important part of the machine is the extrusion press.

Arsenal offers straight and helical grooved feed extruders. The grooved feed zones increase not only specific output, but also stability of pressure of the melt flow, thus allowing for smooth and even linear feeding, which results in lower MD (lateral) gauge variations of the end product. The grooved feeding also ensures high pressure of melt, which in turn allows application of high-pressure extrusion dies. Such dies are unbeatable in TD (transversal) gauge distribution of the melt.

Latest developments in the design of helical grooved feed sections and application of temperature control increase stability and pressure even further while reducing specific energy consumption to the levels similar to smooth bore with static mixer installed in line.

Our extruders are computed and numerically simulated using Reodesigner™ software in order to improve the homogenization process.

SIZE: 60 mm screw diameter, 33:1 effective length/diameter ratio.

BARREL: Manufactured from 4140 nitrided steel;

Drilled for pressure transducer and thermocouples.

SCREW: Double spiral barrier;

Helical grooves feeding zone;

Manufactured from 4140 nitrided steel;

Designed to process HDPE, LDPE, LLDPE, PP, PS, k-resin, EVA, and EVOH, as well as mLLDPE.

HEATING/COOLING:

Barrel heat/cool system divided into six zones;
Barrel zones include heaters and efficient small blowers;
Feed throat drilled for water cooling.

DRIVE & MOTOR

Italian-made vector AC drive with speed regulation, forced ventilation, drip proof motor, blower and filter.

GEARBOX:
Zambello, Italy. Heavy-duty two-stage helical silent gearbox;
Lubrication filter and cooler.

SCREW SPEED:
Maximum screw rotation speed of 160 RPM.

MELT PRESSURE INDICATOR:

Dynisco, Austria. Pressure gauge with alarm, mounted on the barrel end.
Designed to process HDPE, LDPE, LLDPE, EVA.

HEATING/COOLING:
Barrel heat/cool system divided into six zones;
Barrel zones include heaters and efficient small blowers;
Feed throat drilled for water cooling.

DRIVE & MOTOR

Italian-made vector AC drive with speed regulation, forced ventilation drip proof motor, blower and filter.

THREE 60 MM DIAMETER SC60 SCREEN CHANGERS

Slide manufactured from high-grade steel;
Includes flanges for extruder and die connection;
Pressure actuated sealing mechanism.
Two Denisco pressure sensor per each changer

ARSENAL 400 MM 3-LAYER CO-EXTRUSION DIE PACKAGE

SPRIAL DIE:

Manufactured from 4340 steel, annealed, chrome-plated;
Surfaces polished to RMS 10-12;
Belt heater bands complete with connecting plugs, receptacles and thermocouples;
Computer designed spirals and lips to suit resins with good design criteria to minimize residence time and maximize flow uniformity;
High-pressure die designed for ± 2-4% gauge distribution.
BLOCK: Feed blocks for ABC film components;
Surfaces polished to 11 RMS;
Includes heater bands and thermocouples.
DIE CART: Manufactured from heavy wall structural steel;
Leveling bolts (±1") and swivel wheels;
Terminal box.

400 MM MACRO ENGINEERING DUAL LIP AIR RING (Canada)

The air ring is believed to be the best on the market. Lexane casing provides better distribution of air around the bubble to provide even air flow and forced cooling. The air ring has variety of controls as well as temperature and air pressure indicators. Uniformity of the air flow is better then ± 0.75%.

AIR RING BLOWER

12 kW fast vector AC drive speed control, with water cooling, complete with speed control and outlet ducting adapter.

1600 MM OSCILLATING FACE TOP NIP ASSEMBLY

SIDE PLATES:

30 mm thick ground HRS plate frame;
Line bored in mated pairs.

ROLLERS: 210 mm diameter rubber and chromed rollers manufactured from seamless steel tubing, precision machined and dynamically balanced;
Six aluminum idler rollers;
90 mm diameter aluminum idler rolls precision machined and dynamically balanced;
All rollers are mounted on low friction precision bearings.

DRIVE: 3 kW AC drive;
Worm gearbox with timing belt and drive pulley;
System geared for maximum line speed of 100 m/min.

NIP ACTUATOR:

Pneumatically actuated open/close for nip rolls incorporating air cylinder, solenoid valve, pressure regulator.

COLLAPSING FRAME:

PP low friction rollers with collapsing frame 1600 mm wide by 2000 mm long;
Mounted on steel angle frame with central adjustment for both sides;
Includes PP low friction side rollers.
One set of fully adjustable bubble guides.

ARSENAL BUBBLE GUIDE ASSEMBLY

Up to 700 mm diameter bubble guide;
Six row flying grid type flexible holders;
Rigid frame including vertical-horizontal adjustable mechanisms;
Single reduction gearbox with extended chain and sprocket for adjustment.

ARSENAL BACK-TO-BACK SURFACE WINDER

ROLL SIZE:

1600 mm web width;
1000 mm roll diameter.

SIDE PLATES:

20 mm thick ground HRS plate frame;
Line bored in mated pairs.

DRIVES: AC main/secondary drives;

SITY worm gearbox;
System geared for 1:1500 speed range;
Custom adjusted speed range.

WINDING DRUM:

Surface winding drum 400 mm diameter, rubber covered surface;
Dynamically balanced;
Mounted on low friction precision bearings.

TENSION CONTROL:

Automatic tension control via precision load cell with digital rotary tension meter.

INDEXING:

Pneumatically assisted change-over system;
Automatic transfer of finished roll to skid;
Pneumatic retraction of winding arms to transfer stand-by.

CUT-OFF: Automatic cut-off system by flying knife;

Dual side cut-off knife;
Safety mode for auto cut-off mechanism.

CONTROL PANEL:

PLC board mounted on side frame;
Integrated with machine PLC system;
Drive controls including fully programmable PLC with parametric sequencing;
Automatic load cell control via feedback from gravimetric system;
Electronic presettable counter with alarm;
Programmable cycle with automatic weight control and label system;
Auto-manual selectable switch;
Automatic sequencing switch with manual override.