Automatic Strapping Machines for Wire coils & Wire rod coils
In SAIZAR we design and manufacture automatic strapping machines for wire coils and wire rod coils.
We strap the coils radially, through the eye of the coil, and they can be compacted in the same station until the height you need. At the same time, along with the strapping process, we can add any other consumable needed for the subsequent handling of the coil, such as labels, rings, etc.
Every equipment we manufacture at SAIZAR is tailored to your coil, your production rate, and your production line.
What is a Strapping Machine for Wire coils & Wire rod coils?
The machine straps the coil in an automatic mode, without the need for intervention of an operator.
Performs the complete strapping cycle: strap feeding, collection, tensioning, sealing and cutting. The parameters are adjusted via the HMI.
The aim is a strapped, compacted and secured coil, that retains its shape during handling, storage and transport.
Radial strapping through the eye of the coil
In the strapping of wire coils and wire rod coils, radial strapping is the standard method: the strap goes through the Inner Diameter (the eye) and the coil is gathered and held on the coil.
Several straps are applied around the coil, depending on its size and customer’s requirements.
Coils in vertical or horizontal position
Our Strapping Machines can work with the coil in a vertical or horizontal position. In the horizontal position, the eye of the coil can go parallel or perpendicular to the transport direction.
Depending on the position of the coil, both the equipment design and the process change, and it is necessary to know this information from the beginning.
Fixed or movable Strapping Machine
The Strapping Machine can be in a fixed position, with the coil being displaced to each strapping position via a strapping table that performs the necessary rotations, so that strapping can be performed at different angles of the coil.
Another option is the Strapping Machine to be displaced to each strapping position of the coil, while the coil remains still at a fixed point.
Compacting and strapping system in the same station
To obtain more stable and less voluminous coils, they are typically compacted before strapping, with both operations integrated into the same station.
The compaction system can reduce the height of the coil to the height you require. It is a hydraulic compacting system, with compaction pressures from 2 to 30 tonnes, and the compaction force is adjusted via the HMI of the control desk.
Compactors are usually equipped with protective elements to prevent damage to the material to be compacted. Depending on the customer’s requirements and the production line’s productivity, from one to a total of four automatic strapping machines can be integrated into a single compaction process.
Different strappings can be done on each coil, from two to a total of eight, working with several Strapping Machines at the same time.
Strapping of coils on basket
During the strapping process, the coils can be positioned in the strapping station inside some baskets.
These baskets can be of many types, whether for the transport, compaction or strapping of the wire coils.
This type of baskets usually includes a series of guides to make it easier to insert the strap through the inner diameter of the basket.
Once the strapping has been completed, the basket is usually removed and separated from the wire coil, so that it can be reused for the other coils to be strapped.
Steel or PET strap and types of sealing
We work with steel or polyester (PET) strap, in strap widths of 16, 19, 25 and 32mm.
Our strapping heads are designed and manufactured in-house, and are covered by a number of international patents.
- Strapping head for steel strap: The sealing can be with linker (seal), or by notching (without seal) or by TIG welding points. Depending on the product to be strapped, product’s dimensions and the customer’s requirements, one of these three sealing options can be chosen.
- Strapping head for polyester strap: The sealing is by friction/vibration.
- Combined Strapping heads: Capable of working with both types of straps, whether steel or polyester, with different sizes and everything in the same strapping station.
Introduction of protectors, labels and rings during the strapping
During the strapping process, the Strapping Machine can introduce different kind of consumables depending on the customers’ requirements, introducing them automatically.
In some kind of wire coils, the customer requires to protect the product from the strap that is why the cardboard protectors are introduced automatically around the coil from the inner part of it to the outer part, at the point where the strapping is made.
The customer may, on other occasions, wish to label the wire coil; in such cases, the label and/or tag has two slots through which the strap is passed, so that the label remains secured together with the strap.
There are wire coils which, for subsequent handling, must be strapped with the rings automatically inserted at the top of the coil. In such cases, a ring is inserted for each strap, so that the coil can subsequently be suspended from the rings.
Integration in your production line
The Automatic Strapping Machine can be integrated into a production line, design to ensure it adapts as fully as possible to the available space, the line’s requirements and the required production.
Advantages of automating the strapping of wire coils
Automating the strapping process makes it possible to increase productivity considerably, gain reliability, ensure all coils are strapped in the same way and with the same geometry, achieve greater safety during the strapping process, and eliminate the need for any operator to carry out this process.
Compact and stable coils:
compacted to the height you require before the strapping, as long as it is combined with a compacting system
Repeatable strapping:
the same tension and reliability in every strapping operation performed
Greater security:
fewer manual tasks when handling heavy coils
Protected material:
the product can be protected as required
Prepared to 24/7:
control via the HMI, simple maintenance, after-sales service & spare parts supplied directly by the manufacturer
Higher productivity:
an automated application ensures the strapping process more constant and uninterrupted
Lower volume:
more compact coils which are easier to store and transport
Traceability:
product traceability can be integrated into the strapping process
Consumable flexibility:
the same Strapping Machine can be used with both steel and PET strap, as well as with different sizes
Proven experience:
more than 350 automatic strapping machines supplied to numerous customers around the world
Contact our technical department for a customised solution
What details do we need to determine your Strapping Machine
With this information, our technical department can prepare a tailored proposal:
- Minimum and maximum inner and outer diameter, coil height and wire diameter.
- Maximum weight and temperature of the coil.
- Productivity target of coils per hour.
- How is the coil displaced to the strapping station: carriage or roller or chain conveyors.
- Coil introduced in: basket, spooler, pallet or without any element.
- Position of the eye of the coil during the strapping process: vertical, or horizontal.
- Number of straps per coil.
- If there is any integrated rotation system for positioning the coil in each strapping position.
- Desired type of strap, either steel or PET and its width.
- If you want to introduce any other consumable besides the strap during the strapping process.
- Available space, photos of the area where the strapping machine is to be installed, and a photo of the strapped coil.
Frequently asked questions
Why are the wire coils or wire rod coils strapped radially?
Because the strap goes through the Inner Diameter of the coil and binds all the wires of the coil together. This is the standard strapping method for wire coils and wire rod coils.
How many straps are there in a wire rod coil?
Several radial straps are distributed around the coil to be strapped. The amount depends on the size, weight, type of transport, and customer’s specifications, we discuss this every time we work on a project. In most cases, there are a total of 4 straps, although there are exceptions depending on each customer’s needs.
Is necessary to always compact the coil before the strapping?
Not always, but is the common thing to do when you find maximum stability and less volume. The compaction is made on the same station as the strapping.
What compaction pressure is used?
We use hydraulic systems with typical pressures ranging from 2 to 30 tonnes. The compaction force can be adjusted via the HMI depending the type of product.
How many Strapping Machines can be integrated with a single compaction system?
From one to four automatic strapping machines operating at the same time, depending on your productivity needs.
Steel or PET strap for wire coils?
Steel is recommended for very heavy loads, large diameters, or hot coils. PET provides flexibility in cases of minor coil settling. With a combined Strapping head, you can use both types of straps on the same Strapping Machine and choose which strap to use based on your needs.
Can the coil be strapped inside a basket?
Yes, the coil can be introduced into a basket during the strapping process, and afterwards we can incorporate automatic basket removal, separating the coil from the basket itself.
Does the strapping machine place protectors, labels, and rings?
Yes, it can automatically insert cardboard protectors, labels, and rings. The label has slots for the strap to pass through and include the coil’s weight. The cardboard protector is designed to protect the product from the strap itself, and the rings are used to lift the product through them.
What productivity levels can be achieved?
It depends on the dimensions of the coil, the number of straps required for each coil, the other equipments of the line, etc. However, a strapping operation can be completed in approximately 20 seconds.
Will it fit in my current line? Do you offer technical support?
Yes, we synchronize the Strapping Machine with your conveyors, carriage, strapping tables, and even with new or existing production lines. As manufacturers, we provide technical support and replacement spare parts to ensure 24/7 operation.