What are Coil Stackers?

A coil stacker is a type of coil handling equipment that allows coil components to move from the end of the line production onto a more organized pack wherein operators can be able to focus on the labeling, packaging, and loading the trucks.

Unlike coil cradles or coil reels, there are multiple types of coil stackers and are grouped according to their structure and function.

A magnet-type coil stacker is used when the range of weight is close together. In this type, the operator should be actively involved because reprogramming of the stacker is necessary as the weight changes. The internal coil grab involves a jib crane and a hoist that supports a mechanical ID grab. This is the least sophisticated type since it is operated using a hand lever.

A fork type stacker consists of a pair of steel forks that are placed on a traveling carriage within the frame of a stacker roller conveyor. The thickness and length of the forks will change depending on the weight and diameter of the coil being processed. Lastly, the external coil grab is a model that possesses a conveyor section that accepts coils from the strapping table and then positioning them for pick up. This special feature of this specific coil stacker enables the piling of coils within the maximum width capacity and increases the efficiency of the work and by at least 15 seconds. This will also improve the productivity of the operators.

What are their Features?

Coil stackers have buttons for width and length adjustment, a push button for scrap discharge, a “flying end stop” adjustment, an air float cushion, magnetic option, vacuum option, and non-marking rollers.

The air float cushion and non-marking rollers are designed especially for surface critical materials and sheets.

The framework of stackers normally consists of heavy plate steel. They have outer and inner diameter forks that have the use of securing and transporting the coil. A variable frequency drive is also available in order to control the speed of the wagon as it moves in its traverse speed in order to reduce its cycle time.

What are the Advantages and Disadvantages of Coil Stackers?

Stackers are able to eliminate the ergonomic and safety issues that are created with handling the sheets manually. With coil stackers, there are improved operator safety and productivity, lower employee costs, reduced floor space, and balanced and well-organized packs.

Uses and Applications

There are some coil stackers that are specialized for specific applications. An example would be a truck stacker, designed for moving coil sheets from the production line and directly on the truck.

Coil stackers are individually designed to be used in various situations such as multiple stacking locations, coil sortation tables, or linear coil shuttles.

In a truck stacker, the scrap is removed easily from the production line without any interruption. The stacker has a shutting head that builds up two packs per truck. These packs are moved alternately in order to avoid the truck from leaning due to one-sided stacking.

Manufacturers of Coil Stackers

Manuvit

LEV600 ROTO-BOBINE

Energy	Electric
Operator	Walk-Behind
Carrying Capacity – Min	0 kg
Carrying Capacity – Max	350 kg (771.62 lbs)

LEV300

Energy	Manual
Operator	Walk-Behind
Carrying Capacity – Min	0 kg
Carrying Capacity – Max	600 kg (1322.77 lbs)

 

Sources:

http://www.metformintl.com/products/individual-equipment/automatic-stackers-for-metal-forming-equipment.html

http://www.pomacon.com/products/slit_coil_packaging/automatic_coil_stacker.htm

http://www.stripmetalcoilprocessing.com/coil-stacker.html