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Converting and Rewinding Machines

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Alpha I Semi-Automatic Rewinder

Datasheet Information

PE PVC Food wrap Stretchwrap rewinder

The Alpha I is a semi automatic one to one converting machine capable of rewinding a large variety of materials. The unwind roller is surface driven by an AC Drive and the unit includes a dynamic braking system to slow and stop he roller between operations.

Both the unwind and rewind pressures are controlled by a constant pneumatic system, with the rewind incorporating a two position manual turret feature as standard. 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 change over of material and the raised unwind position gives a short rewinding web path ideal for a good roll profile on delicate materials.

Technical Specifications


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


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


Maximum Line Speed


Compressed Air
Electrical Requirements
Length Control


Materials Handled



Quick Roll change facility, running on pneumatically braked roller.
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 – 175mm (7”)
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
Cling Film, PVC, EVA, CPE, pallet stretch wrap and Polyethylene

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