Company founded 1975 US-based machinery business experienced in worldwide sales.

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Alpha Marathon, 1200mm Bubble Wrap Forming Machine, 65mm Extruder, 125 HP

Description

  1. Extruder
    1. 65 mm screw diameter, 30:1 effective length/diameter ratio.
    2. Bimetallic barrel with Xaloy 800 or equivalent liner and 4140 steel backing.
    3. Rated for pressures up to 700 bar.
    4. Drilled for pressure transducer, rupture disc and thermocouples.
    5. Screw manufactured from 4140 steel with flights faced with satellite or Colmonoy.
    6. Designed to process LDPE/LLDPE/recycled materials at 700 kg/hr.
    7. Screw features barrier flight and fluted mixers.
    8. Barrel heat/cool system divided into five barrel zones.
    9. Each barrel zone includes ceramic heaters and efficient blowers.
    10. Zones individually divided by an integrated insulated shroud easily removed for maintenance.
    11. Feed throat drilled for water cooling.
    12. 125 hp DC drive with ± 1% speed regulation, forced ventilated and drip proof motor, blower and filter.
    13. Heavy-duty double reduction helical gear reducer, service factor of 2.4 mechanical given a 125 hp drive and an output speed of 125 rpm.
    14. Incorporates positive pressure lubrication off of input shaft.
    15. Lubrication filter and cooler.
    16. Belt driven for a maximum screw speed of 125 rpm.
    17. Thrust housing assembly integral with reducer.
    18. Spherical 29440E bearing with a B-10 life of 475,000 hours at 100 rpm and 380 bar back pressure.
    19. Low barrel height, barrel covers and hopper with slide gate.
    20. Barrel mounted Dynisco pressure gauge.
    21. Heat transformer for barrel zones included.
    22. Isolation transformer included.
  2. Manual Screen Changer
    1. 65 mm diameter manual lever-type, manufactured from high grade tool steel.
    2. Complete with two detachable breaker plates, pre-hardened and ground.
    3. Includes flanges for extruder and die connections.
    4. Pressure actuated sealing mechanism.
    5. Complete with pre wired heater bands and thermocouple.
  3. Dual Orifice Flat Die Package
    1. Heavy duty body with back-center fed single layer die for 1500 mm flat film.
    2. Dual opening and gap range from 20 to 100 microns.
    3. Manufactured from 4140 steel, annealed and stress relieved.
    4. Polymer surfaces and passages machined and polished to RMS 12-14, and hard nickel plated.
    5. High quality ceramic cartridge heaters complete with plugs/receptacles and thermocouples.
    6. Computer designed coat hanger style to suit LLDPE/LDPE/HDPE/repro materials.
    7. Low-pressure design for +/- 2-3% gauge distribution and 250 bar back pressure.
    8. Die body heat treated to 28-32 Rockwell C with center support.
    9. Neck adapters to suit screen changers complete with flange.
    10. Heater bands and thermocouples.
    11. Stainless steel insulation jacket.
  4. Extrusion And Auxiliary Platform
    1. Constructed from structural steel with vertical support beams and platform accessed by stairs.
    2. Platform designed to incorporate: one extruder, flow distributor assembly, feed blocks, screen changer, die assemblies, all electronics controls, isolation transformers and heater transformers, main distribution panel, all auxiliary equipment, etc.
  5. Face Bubble Forming Cylinder Assembly With Heated And Chilled Rollers Package
    1. 1300 mm web width with 5 mm bubble size.
    2. One 300 mm diameter bubble forming cylinders with dual wall internal refrigeration.
    3. Forming cylinder mounted on especial sub frame for easy removal.
    4. One rubber roll pneumatically adjustable with 50 mm opening and internal refrigeration.
    5. Two way rotary unions for inlet-outlet oil supply.
    6. Two 250 mm diameter dual wall steel cooling rollers polished and chrome plating for post layer lamination, complete with integrated sub frame.
    7. Two way rotary unions for inlet-outlet water supply.
    8. Independent 2 hp drive system for forming cylinder.
    9. Rollers assembly mounted on 30 mm thick ground HRS plate frame.
    10. Line bored in mated pairs.
    11. Dual 1 hp AC drive system per each set of heated rolls.
    12. Heavy duty gear box with timing belt pulley drives.
    13. Rotary union and flexible hoses for vacuum pump included.
    14. Overhead lifting device for forming cylinder change over.
    15. Two spread rollers mounted independently on side plates.
    16. Complete walking platform with hand rail accessed from steel stairs.
  6. Single Turret Winder With Multiple Slitting Stations
    1. 1300 mm finish web width.
    2. 1500 mm maximum roll diameter with two air shaft arrangement.
    3. 20 mm thick ground HRS plate frame.
    4. Line bored in mated pairs.
    5. Two 3 hp Siemens torque drive system, one per winding shaft.
    6. Speed matching of idle shaft to line speed of winding shaft when changing over.
    7. Timing belt pulley drives.
    8. System geared for maximum line speed of 60 meter/minute.
    9. Swivel shaft mechanism for easy finish roll removal.
    10. Air hose facility for inflating air shafts after loading.
    11. Power indexing by integrally mounted gearhead motor with less than 20” cycle.
    12. Automatic tension control via programmable torque drive system.
    13. Assembly includes overhead frame with fixed curvature bowed roll prior to lay on roll and entry idlers.
    14. Automatic cut-off by serrated knife.
    15. 90 mm diameter aluminium idler rolls precision machined and statically balanced.
    16. Rollers all mounted on low friction precision bearings.
    17. Two pneumatically expandable shafts for 75 mm I.D. cores.
    18. Control panel mounted integrally on side frame.
    19. Drive controls, on/off and speed potentiometer, ammeters and MPM meters.
    20. Power indexing controls with safety interlock.
    21. Auto-sequencing via counter or manual activation.
    22. Edge trim bar with low friction rotary knifes for precision cut mounted on winder frame and activated with pneumatic cylinder on rectangular tubing.
    23. Nitride shaft with high precision bearings.
    24. Synchronized drive system to drive both side plates with articulative mechanism for air shaft support.
    25. Pneumatically retractable self centering chucks and drive coupling system.
    26. Unloading of finished roll to be to the right side of winder.
  7. Vacuum Pump
    1. One liquid ring vacuum pump.
    2. 15 hp close-coupled TEFC 3 ph motor.
    3. Manufactured from high tensile cast iron body and bronze propeller.
    4. Capacity of 16-22 Hg V 252 Torr at 1750 rpm.
    5. 2”/150 RF gas conn. size rating.
  8. Oil Temperature Control Unit Immersion Heater
    1. Two 24 kW steel sheath heaters, total 48 kW (one extra if third layer lamination).
    2. Low watt density.
    3. “Fulflo” by‑pass valve to protect heater element and pump.
    4. Hermetically sealed mercury contactor.
    5. Flange mounted to an all steel welded heater case.
    6. Conveniently located for ease of accessibility.
    7. 96 lpm at 4 bar pump.
    8. 2 hp positive displacement pump close coupled to a 3500 rpm ODP motor with a high temperature mechanical seal.
    9. 40 mm delivery and return connections.