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MG Electric (Colchester) Ltd, Wyncolls Road, Severalls Business Park, Colchester, Essex, CO4 9HY UNITED KINGDOM
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Registered in England No. 880470. VAT Reg. GB 368 5808 07

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Alpha II Semi-Automatic Rewinder for Films & Foil

Datasheet Information

The Alpha II is a semi-automatic one to one Rewinder capable of rewinding a variety of films as well as Aluminium Foil. There is a surface driven unwind roller controlled by an AC drive on the system. Dynamic braking is used to slow and stop the roller between operations.

Both the unwind and rewind pressures are independently controlled by a constant pneumatic system, while a manual slack edge adjustment at the rear provides the two-position rewind turret with a perfect finish. The finished roll length is precisely measured by an electronic counter using a preset control system ensuring even decelleration at the end of each roll.

The positioning and design of the Mother Roll cradle provides the ability for quick and easy changeover of heavy rolls of material. As standard, the machine is provided with both Unwind arms for running film as well as a pair of strengthened unwind shafts for rewinding heavy foil rolls.

Technical Specifications

Unwind:
 

Unwind Roller
Maximum Web Width
Minimum Web Width
Maximum Unwind Roll Dia.
Unwind Core Inside Dia.

Rewind:


Rewind Core Max Inside Dia.
Rewind Core Min Inside Dia.
Rewind
Maximum Rewind Roll Dia.

 

Maximum Line Speed

General:


Compressed Air
Electrical Requirements
Length Control
Tension
Drive

 

Materials Handled

 

 

Quick Roll change facility, 2 x shafts for foil and pneumatic arms for film).
610mm (24”)
50mm (2”)
600mm (24”)
76mm (3”) or to customers’ requirements

 

 

 

76mm (3”) or to customers’ requirements
25mm (1”) or to customers’ requirements
Surface driven Rewind
With Turret Arms – 155mm (6”)
With Straight Arms - 400mm (16”)
900 metres (2500ft) per minute


 

 

2 C.F.M. at 85 P.S.I.G. (minimum)
3 Phase 400\440 Volts. 16 Amp supply 50Hz
Electronic PLC Counter with preset control for slow down
Controlled through a custom tension unit, which is variable via a Pulley.
A.C. variable ramp drive, fully adjustable within its speed range from 0-900 metres per min
Aluminium Foil, paper, PVC, pallet stretch wrap, EVA polyethylene, cling film, polypropylene and polyester.