Types of Stretch Wrap

Stretch wrapping involves wrapping flexible plastic film around loads of materials or products to bind the load together tightly and secure it to a pallet without an adhesive. Stretch wrapping is an extremely useful method for storing and shipping goods in nearly every industry, as it helps protect products from moisture, tampering, dust and more. 

Choosing the right stretch wrapper is crucial to successful operations. The type of stretch wrap equipment that best serves you will vary depending on your business needs. Read on to learn more about the different types of stretch wrappers, their uses and what to consider when choosing a stretch wrapper. 

Automatic vs. Semi-Automatic Stretch Wrappers

One of the most significant stretch wrapper differences is whether the wrapper is automatic or semi-automatic. 

Automatic stretch wrappers feed pallets into the machine's wrap zone automatically. You can save pre-determined wrap settings in the control system, allowing the machine to start and stop wrapping automatically. Once the wrap is complete, the machine releases the pallet.

On the other hand, semi-automatic stretch wrappers require an operator. The wrapping is the only automatic part of the process. The operator is responsible for loading and unloading the machine, starting and stopping the machine and making any necessary adjustments. However, semi-automatic wrappers are still significantly more efficient and effective than wrapping pallets by hand. 

Types of Stretch Wrappers

You will find four main types of stretch wrappers in use across various industries and applications. Here's a closer look at each type of stretch wrapper and some common stretch wrapper uses.

Turntable Stretch Wrapper

Turntable wrappers are one of the most popular types of wrappers, as you can configure them for a wide range of applications and needs. When using this stretch wrapper, the operator places pallets on a rotating turntable as the machine dispenses stretch film. The wrapping machine typically wraps from bottom to top to ensure proper coverage and security. These machines are generally semi-automatic, though the operator can control them remotely to automate the process.

Ringer or Orbital Wrapper

Ringer or orbital wrappers wrap a pallet over and under as a conveyor moves the pallet through the machine. These automatic stretch wrappers are especially useful for unwieldy or flattened loads like pipes, doors, carpet rolls, coffins and other oddly-shaped loads. You can also use these machines with other wrappers to achieve a six-sided wrap, completely wrapping and covering all sides of a load. 

Straddle Wrapper

Straddle wrappers operate opposite a turntable stretch wrapper. In this case, the load stays stationary while the wrapper rotates around the load and dispenses film. Because this wrapper limits the movement of the load, straddle wrappers are ideal for light, unstable or extremely heavy loads. They're also capable of handling both low- and high-volume wraps. Depending on the model and your application needs, you can find both semi-automatic and automatic straddle wrappers.

Ring Straddle Wrapper

Ring straddle wrappers are high-speed, highly specialized wrappers, many of which can handle a couple of hundred loads per hour. These are the least common type of wrappers. You will likely only find them in use for a handful of specific applications like wrapping beverages, tissue and paper towels. Because these applications typically happen in fast-paced environments, ring straddle wrappers are usually automatic machines integrated into a conveyor system to keep pallets moving.

Stretch Wrap Specifications: Considerations for Choosing the Right Wrapper

Since it's crucial to choose the right stretch wrapper, it's also essential to find the type of wrapper that will be best for your application. If you're unsure which wrapper will be most effective given your needs, be sure to consider the following:

• Load size: One of the most important aspects to consider is the height, length and width of the loads you'll be wrapping. Keeping your loads within the machine's perimeter is an essential safety factor, so you'll need to choose a wrapper based on your typical load sizes. If your loads are particularly tall, you may need special wrappers that accommodate taller loads. If you're considering a turntable wrapper, also consider the diameter of the turntable in relation to your loads' diameters.
• Speed: You want a wrapper that can keep pace with the rest of your assembly line. You should choose a stretch wrapper that will closely match the pace of production in your facility so you can maintain a consistent flow. For example, semi-automatic wrappers work best in applications with a slower pace since it takes time to load and unload pallets manually. 
• Load weight and stability: The weight and stability of your loads can affect how easily you can move and wrap them. For example, it's best to keep very light, heavy or unstable loads as stationary as possible. Straddle wrappers are most effective for wrapping loads like this since they prevent unnecessary movement that could increase the instability of the load. Choosing a wrapper that suits your typical load weight and stability is vital for both functionality and safety purposes.
• Pallet jacks or forklifts: Be sure to consider whether you primarily load your pallets with pallet jacks or forklifts. If your team is loading the machine with pallet jacks, you may want to choose a wrapper that allows you to keep the load on the floor. If your team uses forklifts, they'll be better equipped to lift the pallets onto conveyor belts or the machine.
• Optional features: You can choose various optional features and add-ons for your stretch wrapper to increase usability and efficiency. Many attachments help increase productivity, reduce labor costs and reduce the potential for employee injury. Certain add-ons can automate specific steps in the semi-automated wrapping process. For example, a clamp-and-cut accessory would prevent operators from having to cut the stretch film themselves after the pallet is wrapped. Features like this can help streamline your operation and further limit the need for manual labor.

Shop for Stretch Wrappers With Neway Packaging

Stretch wrap machines are useful tools for storage and shipment needs across a range of industries and applications. They can help reduce waste, increase efficiency and promote consistency. At Neway Packaging, we understand that many stretch wrapper applications won't have a one-size-fits-all solution, so we offer tailored equipment to meet your needs. With three lines of stretch wrap machines and numerous types of stretch film, we're confident we can provide you with the necessary equipment to store and ship your products safely.

For more information about our stretch wrap equipment or to request a quote, contact us online today!

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