The points need to be before purchasing the stretch wrapper machine

Introduction

Purchasing a new stretch wrapper can be a daunting and confusing experience, with numerous models and features available to choose from. It can be difficult to determine which machine is the best option for your company. However, there is no need to worry, as the experts are here to help guide you through the process. By taking a deep breath and slowing down, you can approach the task with a clear and focused mind.

To make the best decision possible, it is important to first determine your wrapping needs. This includes considering the type and size of your loads, the frequency of use, and any specific wrapping requirements you may have. Based on this information, you can then choose the right machine, taking into account factors such as the machine size, automatic or manual stretch wrap capabilities, turntable or rotary arm options, and pre-stretch capabilities.

The environment in which the machine will be used is also an important consideration, as it needs to have adequate power and air supply, as well as access to loading docks and shipping areas. Reliability and durability are also key factors to consider, and it is important to choose a machine that is made from high-quality materials, has good ratings, and is backed by a solid warranty.

In addition, it is crucial to assess the total cost of ownership, including not only the upfront cost of the machine, but also the ongoing costs for maintenance, parts, and labor. Finally, it is important to choose a reputable supplier who has experience in the stretch wrapping industry, offers good customer service and support, and has a proven track record of success.

By following these tips, you can maintain a sense of perspective, cut through the clutter, and focus on the things that are really important to making the best decision possible for your company.

1 First concern is about the load

Stretch wrapping is a critical part of the shipping process as it ensures the safe delivery of goods from your facility to the customer’s. The goal of stretch wrapping is to transport the load damage-free and cost-effectively. Failure to meet these objectives results in an unsuccessful shipment. Machines are more efficient in wrapping loads compared to manual labor, resulting in better unitization and protection of the load during transportation. To achieve the best results, it’s crucial to aim for a “good load” which has the following characteristics: proper containment force applied on the top, middle, and bottom, secure locking of the load to the pallet, and absence of any trailing film tails.

When shopping for a stretch wrapper, it’s important to consider more than just the cost of materials and machine features. You will need to provide your supplier with important details about your loads to ensure that you are getting the best equipment for your needs. To do this, you will need to have answers to the following questions:

What products are you wrapping?

How are you currently wrapping and how many people does it take?

How many loads per day do you need to wrap?

Are you experiencing any shipping damage? If so, what is causing it?

Are your loads order-picked or standard?

What are the dimensions of your pallets (length, width, and height)?

How tall do you plan to stack the product?

What is the weight of the heaviest and lightest loads?

Do you require load weight measurement (for quality control or bill of lading purposes)?

How are pallets loaded onto the turntable (pallet jacks or forklifts)?

Are there partial layers that need to be secured?

Does the product overhang the sides of the pallet and, if so, by how much?

How many loads per hour or per day do you need to wrap?

How many shifts do you operate daily (1, 2, or 3)?

2. Work out how to pack your load before you buy the machine.

In the process of stretch wrapping, the primary cost driver is the damage that occurs to loads during transit, which is a result of incorrect wrapping. While machines have made stretch wrapping a more efficient process, they lack the human element in making critical decisions that impact the quality of the wrapping.

One of the most important decisions is the choice of film to use. The film gauge, pre-stretch, and material must be taken into consideration to ensure the film used for hand wrapping will work just as effectively with a machine. In this regard, seeking the advice of a distributor who has expertise in both machines and film can be incredibly helpful.

Another critical decision is determining the right amount of tightness to wrap the load. This is achieved by calculating the containment force, which is the result of multiplying the wrap force by the number of film layers. The required containment force will vary depending on the type of load being wrapped, with heavier loads requiring more containment force and lighter loads requiring less.

Finally, the wrap pattern must also be considered, as it plays a crucial role in securing the load. The wrap pattern is determined by several settings, including the number of top and bottom counts, the wrap force setting, and the amount of overwrap applied to the top of the load. In conclusion, the stretch wrapping process requires careful consideration of multiple factors to avoid in-transit damage and ensure the loads are wrapped correctly.

Film breaks are the most common issue in stretch wrapping, leading to a series of negative consequences. To minimize the risk of film breaks, several precautions can be taken:

Ensure that products do not overhang the pallet and avoid sharp corners to reduce the risk of film breaks.

Provide proper training to operators to handle film correctly. Film breaks can be caused by improper film threading and nicks from dropping or mishandling the film roll.

Opt for high-quality film instead of cheap film that is more prone to flaws and is less tear-resistant. Quality film also has a greater ability to stretch compared to low-quality film.

Set the wrap force at a suitable level. Experiment with different tensions to determine the best setting, depending on the film and product being used.

In some cases, a load may require extra attention or reinforcement. Partial layers may be secured using the roping technique or by applying multiple layers of film to one spot on the load. For heavy and unstable loads, steel or polyester strapping may be necessary.

It’s important to keep in mind that machines cannot compensate for poorly built loads or bad pallets. Thus, the load and pallet must be constructed correctly to ensure proper stretch wrapping.

When it comes to securing loads on pallets, it’s essential to follow certain guidelines to avoid damage during transport. Loads that are too large or small for their pallets, broken pallets, and poorly stacked loads can all result in issues. Loads should not exceed 2 inches inboard from the edge of the pallet or overhang by more than 2 inches. Additionally, loads should be of appropriate width, length, weight, and lightness. To ensure the load stays in place during transportation, it’s crucial to lock it to the pallet using a stretch wrapper and a load-to-pallet bonding device. When choosing the right machine for this task, it’s important to thoroughly test it rather than making assumptions. If unsure, seek expert help to ensure you make the best decision.

3. Purchase a machine that is both easy and inexpensive to modify on site.

It’s not uncommon for load specifications to change over time, and this may result in the need for additional capabilities from your stretch wrapper. If your loads are now different in width, length, height, weight, or stability, for example, you may need to modify your stretch wrapper. Instead of purchasing a new machine, consider retrofitting your current machine with new components to meet your new requirements. This option can often be faster and more cost-effective than purchasing a brand new stretch wrapper.

When selecting a stretch wrapper, look for a machine with a modular design, which makes modifications easy and affordable. Some common in-field upgrades include mast height extensions, base extensions, film delivery systems, ramps, remote controls for mounted forklift operations, and load locking devices.

Stretch wrapper manufacturers often offer retrofit options to help you upgrade your machine. For example, you can retrofit your machine with a component that increases the wrap height to 110 inches tall, which can be especially useful if you start double stacking loads. When considering a retrofit, reach out to the stretch wrapper manufacturer for more information and to see what options are available.