Shafted unwind stand from the Double E Company

Roll Stands

Unwind Stands - Shafted
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Double E provides completely custom shafted roll stands to suit specific winding applications. Standard stands (with custom specifications within parameters) can be provided quickly through the Fast Lane program. Stands and drop-in modules for unwinding are both available. High quality accessories include Double E shafts, safety chucks, and rollers; Re brakes, tension controllers, and web guides; and Mario Cotta slitting equipment.

Unwind Stands from Double E

Double E unwind roll stands are pre-configured for easy integration into any converting process to upgrade or replace old or inefficient winding stations, or to add a new unwind station to an existing machine. These stands are packaged with all accessories working together, and warrantied bya single supplier. Prices for new equipment from Double E are often lower than comparable used equipment.

Shafted Unwind Roll Stands

Double E has manufactured hundreds of unwind stands to suit a wide variety of applications. Whether you need a light duty cantilevered unwind stand, or a heavy duty reinforced stand for an aggressive application, Double E has the experience to design and build exactly what is needed to meet the operating specifications.

 

Double E Company shafted unwind stands Shafted unwind stand from the Double E Company Unwind stand from Double E Company; shown with shaft removed.
Heavy duty unwind stand for unwinding web material Heavy duty unwind stand with core shaft and large diameter bladder chucks Triple unwind stand from the Double E Company

 

The triple unwind stand (bottom right) is an excellent example of Double E's customization expertise. This stand is a unique design that was engineered for a producer of laminated film. The customer needed a more efficient method for manufacturing a five-layered material. Since the customer already had three individual stands, Double E engineered this stand to replace one of those single unwind stands to give them a total of five unwind sections. This stand consisted of a control panel with three Re EP.25 T-One controllers, safety chucks holding three DG-2000 aluminum bladder shafts and regulated with Re TC load cells and pneumatic brakes.

 

Drop-In Unwind Modules

Double E drop-in unwind stand retrofit upgrade.

Double E can also offer drop-in or bolt-on modules to upgrade existing machines. 

 

As an example, this custom module was created for a supplier of plastic sheets and roll stock. The customer needed a bolt-on double unwind stand with closed loop tension controls and load cell frames for regulating tension.

 

This stand consisted of two DG-2000 aluminum bladder shafts held by four safety chucks and regulated by two Re pneumatic CX.250 brakes.

Unwind Stands - Fast Lane

Standard roll stands delivered in five weeks or less

  • High-quality pre-configured roll stands at affordable prices – delivered in five weeks or less
  • Run larger unwind rolls to increase production and profits
  • Easy to integrate with existing equipment
  • Increase product quality and reduce waste
  • Suited for all types of materials and converting equipment

Double E Company Fast Lane roll stands can be delivered in five weeks‚Äč

Basic Roll Stand Configurations

Solution "S" - Open Loop Tension Control

Double E Solution S simple shafted unwind stand

Suitable when simple monitoring of roll diameter is enough to adjust tension. It is especially economical if the web path will allow for the A-frame only (without the optional exit roller stand). Base price includes A-frame, 60” - 100” web width, 40” max roll diameter, steel “Dyna–Grip” lug shaft, Re “Combiflex” pneumatic brake, SP11 safety chucks, one exit roller, and an EP.34 open loop tension control system.

Options/Upgrades: web guiding, "Dura–Light" carbon fiber lug shaft, 60" max roll diameter, web width < 60" or > 100", exit roller stand and extra roller.

Solution "OL" - Open Loop Tension Control

Double E Company Solution OL unwind stand with open loop tension control

Suitable when simple monitoring of roll diameter is enough to adjust tension. It is especially economical if the web path will allow for the A-frame only (without the optional exit roller stand). Base price includes A-frame, 60” - 100” web width, 40” max roll diameter, steel “Dyna–Grip” lug shaft, Re “Combiflex” pneumatic brake, SP11 safety chucks, one exit roller, and an EP.34 open loop tension control system.

Options/Upgrades: web guiding, “Dura–Light” carbon fiber lug shaft, 60” max roll diameter, web width < 60” or > 100”, exit roller stand and extra roller.

Solution "CL" - Closed Loop Tension Control

Double E Company Solution CL unwind stand with closed loop tension control

Delivers advanced web tension control with direct measurement and feedback from load cells. Base price includes 60” - 100” web width, 40” max roll diameter, steel “Dyna–Grip” lug shaft, Re “Combiflex” pneumatic brake, SP11 safety chucks, load cell stand, 3 exit rollers, and an EP.25 closed loop tension control system with load cells.
 

Options/Upgrades: web guiding, “Dura–Light” carbon fiber lug shaft, 60” max roll diameter, web width < 60” or > 100”.

Unwind Stand Accessories

Safety Chucks

Double E safety chuck

Unique sliding design makes loading and unloading easy, guarantees roll security, and prevents finger jamming.

Shaft placement is effortless with square-turned-45° (standard) or patented circular jaws for high speeds.

Available sidelay adjustment for alignment and pivot table for baggy edge correction.

Core Shafts

Double E core shaftsFrom lightweight carbon fiber lug shafts to simple metal strip shafts, Double E offers any type of core shaft that you need.

Rollers

Double E idler rollerLow-inertia carbon fiber rollers respond to changes in web speed to minimize web scratching and stretching. Double E offers a low-cost model which can be close to the cost of a traditional aluminum roller.

Brakes

Double E / Re brakesCool-running pneumatic brakes or electromagnetic powder brakes.

Tension Control

Double E / Re tension control accessoriesLoad cells, tension controllers, ultrasonic sensors, integrated systems

Web Guiding with Shifting Actuator

Double E / Re shifting actuator web guide.Shifting actuators are perfect for simple web guiding from a shafted unwind stand. Double E also offers pivot frames and steering rolls - all featuring the easy-to-use RK31 remote controller and accurate stepper motors.

For more info on this product, check out the following pages:


Nip Feed Station used with Die Cutting Machine
Producer of Plastic Sheets Upgrades Production Line with Retrofit Double Unwind Stand
Producer of Plastic Netting Upgrades Unwind Stands with Simple Retrofit System
Producer of Laminates and Performance Films Increases Capacity and Cut Quality with Retrofit Section

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