Twin Mandrel Uncoiler

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Hayes Twin Mandrel Uncoilers are fast and efficient way to change between materials for different orders or minimize the time it takes to feed up a new coil and keep production going saving time and increasing productivity, especially when paired with a Hayes coil car allowing for efficient loading of new coils. A typical twin mandrel uncoiler has a capacity of 6-tonne per side with both mandrels attached to a rotating turret coupled to the uncoiler base via a heavy duty bearing and driven with an internal sprocket and VFD Electric motor allowing for full 360° rotation. The uncoiler mandrels are a 4-leaf assembly available in both wedge, and linkage expansion configurations depending on the desired application. A standalone operators’ console with touch screen is used to operate the uncoiler in tandem with a rollforming machine.

WEDGE UNCOILER STANDARD COMPONENTS

UNCOILER BODY

- Welded steel construction painted with lacquer finish.

- Removable guarding covering main drives and pinch points.

UNCOILER MANDRELS

- Four solid steel palm plates attached to mandrel shaft via steel linkage assembly or captive wedges dependent upon application.

- Expand/retract controlled via hydraulic piston and on board self-contained powerpack.

- Pressure reducing valve minimizes potential damage to coil bore.

ELECTRIC DRIVES

- Rotational power provided to each mandrel via dedicated VFD electric gearmotor coupled via heavy-duty chain and sprocket transmission.

- Variable payoff speed controlled via overhead laser.

- Can run in reverse -in combination with a snubber arm- to allow for the re-winding of coils.

- Rotation of turret for changing between online/offline coils achieved via internal sprocket and VFD electric motor capable of full 360° operation.

UNCOILER SPECIFICATIONS

Hayes Twin Capstan Uncoilers are available in multiple configurations including 1250mm wide mandrels for wider coils and narrow versions for use with purlin coils. Please contact Hayes International for more information on an uncoiler to suit your needs.