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Machine Sold

Used machine: Air bubble film extrusion line - ALPHA MARATHON - - Ref. : 300037934


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Data Sheet of Used ALPHA MARATHON

Ref. : 300037934

Brand: ALPHA MARATHON

Year: 2011

Other Specifications:


Max roll diameter: 1200 mm
Materials: 55% LDPE, 25%LLDPE, 20% HDPE and blends.

Consisting of:

1- One in-line trim/scrap recycling system, including cyclone and feeder.
Standard features:
- Venture trim removal system
- Trim receiver
- High efficiency cyclone
- Screw feeder
- Film grinder

2- One Marathon 75 mm diameter, 30:1 L/D 150 hp AC extruder model AM3075
Size
- 75 mm screw diameter, 30:1 effective length/diameter ratio
Barrel
- Bimetallic barrel with Xaloy 800 or equivalent liner and4140 steel backing
- Rated for pressures up to 690 BAR
- Drilled for pressure transducer, rupture disc and thermocouples
Screw
- Manufactured from 4140 steel with flights faced with Colmony 83
- Designed to process 50% LDPE, 25% LLDPE, 20% HDPE and blends
- Screw features barrier flight and fluted mixers
Heating/cooling
- Barrel heat/cool system divided into 5 barrel zones
- Each barrel zone includes ceramic heaters and efficient blowers
- Zones individually divided by an integrated insulated shroud easily removed for maintenance
Reducer
- Heavy duty double-reduction helical gear reducer with direct driven oil circulation
- Service factor of 2 mechanical given a 150 hp drive and output speed of 125 RPM
- Incorporates positive pressure lubrication off of input shaft
- Lubrication filter and cooler
Screw speed
- Belt driven for a maximum screw speed of 125 RPM
Thrust bearing
- Thrust housing assembly integral with reducer
- Spherical bearing at 125 RPM and 345 BAR back pressure
Drive
- Siemens 150HP AC flux vector drive with accurate speed regulation, forced ventilated and drip proof Siemens motor, blower and filter
Other features:
- Pressure gauge with alarm
- Low barrel height
- Hopper and slide gate
- Transformer for heaters included
- Rupture disc rated at 520 BAR included
- Junction box
- Drawer magnet

3- One Marathon 75 mm manual screen changer for the A/M extruder
Made of high quality steel, thermally treated and rectified in their sliding parts.
Compact design offers excellent working conditions and the screen pack changing does not require special tooling
Features
- Manual lever type
- Complete with 2 detachable breaker plates, pre-hardened and ground
- Includes neck and flanges to extruder
- Standard die flange
- Pressure actuated sealing mechanism
- Complete with pre-wired heater bands and "J" type thermocouple
- New effective screen filter for the use of reprocessed plastics in new material processing applications
- This screen filter enables a continuous run with less scrap produced

4- One 1600 mm dual orifice flat die with deckling system on each side to accommodate 1500 mm web width
Standard features
- Heavy duty body with back-center fed single layer die for flat film
- Dual opening with deckling system and gap range from 20-100 microns
- Manufactured from 4140 steel, annealed and stress relieved
- Polymer surfaces and passages machined and polished to RMS 12-14, and hard nickel plated
- High quality ceramic cartridge heaters complete with plugs/receptacles and thermocouples
- Computer designed coat hanger style to suit 50% LDPE, 25% LLDPE, 20% HDPE and blends
- Low-pressure design for +-2-3% gauge distribution and 250 BAR back pressure
- Die body heat treated to 28-32 Rockwell C with center support
- Neck adapters to suit screen changers complete with flange
- Heater bands and thermocouples

5- One Marathon extrusion and auxiliary platform
Standard features:
- Constructed from structural steel with vertical support beams and platform accessed by stairs
- Platform designed to incorporate.
- Two extruders
- Flow distributor assembly
- Feed blocks
- Screen changers
- Dies assemblies
- Electronic controls
- Isolation transformers and heater transformers
- Main distribution panel
- All auxiliary equipment

6- One Marathon face bubble forming cylinder assembly with heated and chilled rollers package to accommodate 1500 mm finished web width
Standard features
- Generating finished web width of 1500 mm with 10 mm bubble size
- One 545 mm diameter bubble forming cylinders with dual wall internal refrigeration
- Forming cylinder mounted on especial sub frame for easy removal
- One rubber roll pneumatically adjustable with 50 mm opening and internal refrigeration
- Two way rotary unions for inlet-outlet oil supply
- Two 150 mm Teflon coated tempering rollers
- Two dual wall steel cooling rollers polished and chrome plating for post layer lamination, complete with integrated sub frame
- Two wat rotary unions for inlet-outlet water supply
- Independent 2.0 HP drive system for forming cylinder
- Prevision for second drive system with third web
- Rollers assembly mounted on 25mm thick ground HRS plate frame
- Line bored in mated pairs
- Dual 2 HP AC regenerative drive system per each set of heated rolls
- Heavy duty gear box with timing belt pulley drives
- Rotary union and flexible hoses for vacuum pump included
- Overhead lifting device for forming cylinder change over
- Two spread rollers mounted independently on side plates
- Complete walking platform with hand rail accessed from steel stairs

7- One Marathon manual single face turret winder with perforating and multiple slitting stations to accommodate 1500mm finished web width (winding bubble both ways)
Standard Features
Roll Size
- 1600mm roll face width
- 1200mm maximum roll diameter with two air shaft arrangement
- Hand rail accessed from steel stairs
Side Plates
- Tube frame fabrication
- Line bored in mated pairs
- Enclosure on motor side of winder
Drive
- Two 3 HP Siemens torque drive systems, one per winding shaft
- Speed matching of idle shaft to line speed of winding shaft when changing over
- Timing belt pulley drives
- System geared for maximum line speed
Turret
- Cantilevered shaft mechanism for easy finish roll removal
- Air hose facility for inflating air shafts after loading
- Power indexing by integrally mounted gear head motor
Tension
- Automatic tension control via programmable torque drive system
Guiding Rolls
- Assembly includes overhead frame with fixed curvature bowed roll prior to lay on roll and entry idlers
Cut Off
- Automatic by serrated knife
Accumulator assembly
- Mounted integrally in secondary nip
- Lightweight, pneumatically balanced accumulator for precise tension control and taking up the slack during cutting at zero or reduced speed
Rollers
- 90mm diameter aluminum idler rolls precision machined and statically balanced
- Rollers all mounted on low friction precision bearings
Shafts
- Two (2) pneumatically expandable shafts for 75mm I.D. cores
Control Panel
- Mounted integrally on side frame
- Drive controls, on/off and speed potentiometer, ammeters and MPM meters
- Power indexing controls with safety interlock
- Auto-sequencing via counter or manual activation
- Siemens PLC controls
Slitting station
- Edge trim bar with low friction rotary knives for precision cut mounted on winder frame and activated with pneumatic cylinder on rectangular tubing
- Nitride shaft with high precision bearings
Perforating station
- Mounted integrally on steel side plated bored in pairs
- 250mm diameter brush roll manufactured from steel tubing, precision machined and statically balanced
- 2.0 HP servo motor
- Pneumatically actuated open/close roll incorporating air cylinders, solenoid valve, pressure regulator and tubing lines
- Rotary perforating system with three sets of serrated knives
- Programmable selection with minimum length of 150mm per cycle depending upon material and line speed
Other features
- Synchronized drive system to drive both side plates with articulate mechanism for air shaft support
- Pneumatically retractable self-centering chucks and drive coupling system
- Unloading of finished roll to be to the right side of winder

8- One vacuum pump
- One liquid ring vacuum pump
- 10 HP close-coupled TEFC 3 HP motor
- Manufactured from high tensile cast iron body and bronze propeller
- Capacity of 16-22 Hg V 252 Torr. at 1750 rpm
- 2"/150 RF gas conn. size rating
- Complete with all connections and piping from and to forming roll

9- One complete oil temperature control unit
Immersion heater
- Two (2) 24 kW steel sheath heaters, total 48 kW (one extra if third layer lamination)
- Low watt density
- "Fulflo" by-pass valve to protect heater element and pump
- Hermetically sealed mercury contactor
- Flange mounted to an all steed welder heater case
- Conveniently located for easy of accessibility
Pump
- 96 liter per minute at 4 bar
- 2 HP positive displacement pump close coupled to a 2500 rpm ODP motor with a high temperature mechanical seal
- 40mm delivery and return connections
- Delivery pressure gauges
Cooling
-"U" tube heat exchanger
- Stainless steel tube with a steel shell
- Solenoid valve cooling controlled by temperature controller
Tank
- 18 liter baffled steel expansion tank and reservoir
Microprocessor controller
- Solid state temperature OMRON controller 1/16 DIN size
- Dual digital displays; Set temperature and Process temperature
- PID controller with "auto-tune" feature
- Set point deviation indication
- "Lockout" feature prevents unauthorized temperature setting
- Sensor fault indication
- Temperature range 100 oC to 300 oC
Safety controls
- Pump motor thermal overloads protection
- High temperature safety thermostat
- High temperature safety secondary contact on main thermostat
- Pump pulses, heater fuses, fuses on both the primary and secondary of the control transformer
- "Y" strainer on the return line to keep fluid clean

10- One Marathon digital operator control panel
Standard features
- Floor standing control panel including temperature controllers for the barrel and heated zones
- Master drive control including one master speed and individual slaves
- Complete digital PLC mater control center with peripheral interface
- One "soft touch" LCD flat screen for complete monitoring laminating station, heating rollers and cooling rollers
- Chilled rollers forward/reverse, on/off controls
- Oil heated rollers, forward/reverse, on/off controls
- Forming roller forward/reverse, on/off controls
- Nip rollers, forward/reverse, on/off controls
- Vacuum power unit on/off buttons
- Water thermo control unit on/off buttons and controls
- Oil control unit on/off buttons and controls
Electronics
- To suit local voltage, all drives and PLC are Siemens

Line Specification
Line speed: up to 50 m/min depending on material gauge
Film specification: 1500mm finished web width @ 25 to 100 microns
Power drives requirements: to suit local power supply
Power heater requirements: 300 kW
Water requirements: 8 cubic meters per hour (no water requirement if chiller is applied)
Compressed air requirements: 6 bar of dry air


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