Ruian UTO Machinery Factory

Stretch Film Rewinder

What is Stretch Film Rewinder?

Stretch film rewinders are machines that are used in the packaging industry to rewinding stretch film from large rolls into smaller ones. This process is often used to prepare stretch film for use in wrapping products for transportation, storage, and retail display.The rewinding process involves unwinding the stretch film from a large roll and then rewinding it onto a smaller roll. The machine typically has two spindles, one for the large roll and one for the smaller roll. The stretch film is fed through a tension control system to ensure that it is rewound tightly and evenly onto the smaller roll.

 

Advantages of Stretch Film Rewinder
 

Automatic operation
Many stretch film machines are designed for automatic operation, minimizing the need for manual labor. Automatic machines can efficiently wrap pallets with minimal human intervention.

 

Adjustable tension and stretch levels
Stretch film machines typically allow users to adjust the tension and stretch levels of the film. This customization ensures that the film is applied tightly for optimal load containment.

 

User-friendly controls
Stretch film machines typically have user-friendly controls that allow operators to set parameters such as wrapping speed, film tension, and the number of wraps. Touchscreen interfaces are common in modern machines.

 

Safety features
To ensure safe operation, stretch film machines are equipped with safety features such as emergency stop buttons and safety barriers. These features help prevent accidents and injuries during the wrapping process.

 

 
Why Choose Us
 
01/

Our history
Ruian uto machinery factory is an enterprise specializing in the research and development, manufacturing, marketing and service of air bubble wrap film machine, cast stretch film machine, blown film machine, bag making machine & related accessories.

02/

Our service
Utoplas, brand of ruian uto machinery factory which located in the machinery manufacturing center ruian city. Our equipments are selling well and gain wide praises at home & abroad. In the past time, we served and helped our customers get successful in their local markets and created a strong long-term cooperation with them.

03/

Product quality
We are making great efforts to develop new products to meet different requirements. Our company has professional engineer to strictly control the product quality.

04/

Professional service
Adhering to the business principle of mutual benefits, we have had a reliable reputation among our customers because of our professional services, quality products and competitive prices.

 

Functions and Features of Stretch Film Rewinder

Rewinding
The primary function of a stretch film rewinding machine is to rewind large rolls of stretch film into smaller, more manageable rolls. These smaller rolls are often referred to as "hand rolls" or "manual rolls" and are suitable for manual or handheld dispensers.

Slitting
Stretch film rewinding machines are equipped with slitting knives or blades that can cut the wide stretch film roll into multiple narrower rolls. Slitting allows for customization of the width of the rewound rolls according to specific packaging requirements.

Core loading
Stretch film comes on large rolls with a core at the center. The rewinding machine typically has a mechanism for loading these large rolls onto the machine, allowing the rewinding process to begin.

Tension control
Tension control features ensure that the rewinding process is consistent and prevents overstretching or uneven winding of the film. This helps maintain the quality of the rewound rolls.

Automatic stop and start
Many stretch film rewinding machines are designed with automatic stop and start functions. This means that the machine will automatically stop when a roll reaches the desired length, and it will start again for the next roll.

Counting mechanism
Some machines are equipped with a counting mechanism to keep track of the number of rolls produced. This feature is useful for inventory management and quality control.

Film tension adjustment
Adjustable film tension is a crucial feature that allows operators to control the tightness of the rewound rolls, ensuring consistency in the final product.

Touchscreen or control panel
Many modern stretch film rewinding machines come with user-friendly touchscreens or control panels. Operators can set parameters such as roll length, tension, and cutting preferences through these interfaces.

Safety features
Safety features, such as emergency stop buttons and safety guards, are implemented to ensure the well-being of operators and prevent accidents during the rewinding process.

 

Stretch Film Slitting and Rewinding Machine

 

Types of Stretch Film Rewinder

Semi-automatic rewinding slitting machine
Simultaneously possess slitting and rewinding functions, simple structure, easy operation, and convenient troubleshooting. The control system generally based on human-machine touch interface and plc controlling system, configured with a main motor, a flipping motor, and a set of frequency converter control system. On unwinding end, use a magnetic powder brake to control torque for tension control, and functional requirements include flexible adjustment of operating time, speed and accurate meter measurement. Manual replacement of paper cores, manual slicing, manual loading and unloading process. In addition, the rewinding stations can be increased according to needs to improve the winding efficiency, and the speed ratio can be changed by replacing different gears to stretch the film into various widths and thicknesses, realize the pre-stretching function.

Fully-automatic rewinding machinery
Mainly rewind the mother rolls with a large diameters into several finished rolls with smaller diameters. The characteristics include high degree of automation, faster speed and higher working efficiency. Equipped with automatic feeding paper tubes, automatic unloading, automatic shaft changing, automatic horizontal slicing, etc. Together with conveyor belts, it can synchronously complete machine operation and the packing process of finished rolls. Significantly reduce labor cost, even a single person can handle the operation of several machines. In addition, humanized protection functions such as automatic shutdown due to film breakage, shutdown due to no paper core on clamp, which can effectively eliminate safety hazards, save energy consumption and ensure the safe and reliable running of equipment.

 

Working Principle of Stretch Film Rewinder

 

 

Stretch film machine (or packaging machine) is a mechanical equipment used to package goods. Its working principle is to form a protective packaging layer by wrapping film material around the goods.

Stripping
First, a piece of film is removed from a roll of film material. This film roll is usually located at the top of the machine and feeds the film material through a roller called a stripper roller.

Moving conveying
After the film passes through the top roller, it is moved to the goods that need to be packaged through the conveying system.

Fixing the goods
When the film moves to the side of the goods, the goods need to be placed on a platform and fixed in a certain position through a clamp or clamping device to ensure the stability of the goods during the packaging process.

Stretch film roller rotation
When the goods are fixed, the film roller starts to rotate, wrapping the film around the goods. The rotation speed can be adjusted via the control system.

Film tension adjustment
The film tension adjustment device can adjust the tension between the film roller and the goods to maintain the appropriate tension of the film material. In order to ensure that the film can closely adhere to the surface of the cargo without loosening.

Winding mode adjustment
Stretch film machines usually have different winding modes to choose from, including horizontal winding, spiral winding and staggered winding, etc., to adapt to goods of different shapes and sizes.

Cutting and fixing the film tail
After the film is wound into a certain number of turns, the cutting knife will cut the film, and the heat shrink gun will heat the film tail to make it shrink and tightly fixed on the goods.

End of packaging
When the goods are completely packaged, the stretch film machine stops working and the goods can be removed from the platform for further processing or transportation.

 

Application of Stretch Film Rewinder

 

Pallet wrapping
One of the primary uses of stretch film is for wrapping and securing palletized goods. It helps to stabilize and protect the load during transit, preventing shifting or damage.

Shipping and logistics
Stretch film is extensively used in the shipping and logistics industry for wrapping pallets of products. It ensures that items remain intact and secure during the entire shipping process.

Warehousing
Within warehouses, stretch film is used to bundle products together, secure cartons on pallets, and protect goods from dust and dirt. It aids in maintaining the integrity of the stored items.

Retail and distribution
Retailers use stretch film to secure merchandise on pallets for easy handling and transportation. It helps in organizing and protecting products during distribution to various retail outlets.

Manufacturing
In manufacturing facilities, stretch film is employed to wrap and protect finished goods, raw materials, or work-in-progress items. It ensures that items are kept clean and safe during different stages of production.

Food industry
Stretch film is used in the food industry for wrapping pallets of packaged food items. It helps maintain the freshness of products, prevents contamination, and ensures hygienic storage and transport.

Household use
Consumers may use smaller rolls of stretch film for various household applications, such as wrapping and protecting items during a move, bundling objects together, or covering and preserving food.

Agriculture
In agriculture, stretch film may be used to secure and protect bales of hay or straw, palletized agricultural products, or greenhouse coverings.

Furniture and textiles
Industries that deal with furniture and textiles use stretch film to protect these items from scratches, dust, and other potential damage during storage and transportation.

 

How to Maintain Stretch Film Rewinder
 

Regular cleaning
Regular cleaning includes cleaning the surface and internal parts of the machine, and removing oil, dust and other debris to ensure that the machine is not contaminated and extend the service life of the machine.

 

Lubrication and maintenance
Regularly lubricate and maintain the bearings, chains, transmission devices and other parts of the machine to reduce wear and friction and ensure smooth operation of the machine.

 

Drive belt inspection
Regularly check whether the drive belt of the machine is damaged or loose. If there is any problem, replace or adjust it in time to ensure the normal operation of the machine.

 

Cleaning roller
The cleaning roller is a key component to ensure smooth film packaging. Clean the surface of the roller regularly to avoid adhering impurities that affect the packaging effect.

 

Check electrical components
Regularly check whether the electrical components of the machine, such as contactors, relays, etc., are normal. If damaged, they should be replaced in time to ensure the normal operation of the machine's electrical system.

 

Adjust the tension
According to the different needs of packaging items, regularly adjust the tension of the wrapping film machine to ensure the best packaging effect.

 

Regular maintenance
Regularly conduct comprehensive inspections and maintenance of various parts of the machine, such as regular replacement of lubricating oil, cleaning of rollers, etc., to ensure the stability and reliability of the equipment.

 

Precautions of Stretch Film Rewinder
 
1

Safety
Give priority to the safety of operators, wear relevant safety protective equipment, and try to avoid accidents.

2

Equipment inspection
Before use, conduct a comprehensive inspection of the stretch film machine to ensure that all components are in normal working condition and are not damaged or worn. Pay special attention to electrical systems and mechanical transmission systems to ensure proper operation.

3

Adjust parameters
According to the needs of the packaging operation to be performed, adjust the settings of the wrapping film machine accordingly, including wrapping speed, film tension, width of packaging film, etc. Adjusting parameters can improve packaging efficiency and quality.

4

Film replacement
Replace the stretch film regularly according to the operating instructions. Proper film replacement minimizes material waste.

5

Environmental requirements
Keep the area around the machine clean and dry, and avoid foreign matter from entering to avoid affecting the packaging effect. Ensure proper ventilation to avoid overheating of the machine.

6

Operation points
Operators must be proficient in the operation method of the stretch film machine and perform reasonable operations according to packaging requirements to avoid human operating errors leading to poor packaging.

7

Maintenance
Regular maintenance of the stretch film machine, including cleaning, lubrication, replacement of worn parts, etc., can extend the service life of the equipment.

8

Troubleshooting
If a malfunction occurs during operation, stop the machine immediately and find out the cause. Fix the problem before restarting the machine to prevent further damage.

 

Certifications
 

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Our Factory
 

Ruian uto machinery factory is an enterprise specializing in the research and development, manufacturing, marketing and service of air bubble wrap film machine, cast stretch film machine, blown film machine, bag making machine & related accessories.

 

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FAQ

 

Q: What is the purpose of stretch film wrap?

A: Stretch wrapping is one of the most popular unitizing and pallet wrapping methods on the market today. It is a stretchable plastic film that can prevent products from being damaged in the shipment process due to improper handling, sudden movements, or environmental factors.

Q: What is the difference between cling wrap and stretch film?

A: Pallet stretch film excels in industrial packaging, securing cartons and pallets during transportation, thanks to its exceptional durability and elasticity. On the other hand, food cling wrap specializes in protecting food items, increasing their shelf life without compromising quality.

Q: Where do you use stretch film?

A: When do I use stretch film? Usually, a stretch film holds boxes and products together on a pallet for transportation. It is also used to hold other objects together and protect objects during transport and storage. Stretch film can come in a variety of specialty films.

Q: How strong is stretch film?

A: Ideal for loads up to approx. 2400-2600 lbs. 90 gauge is a starting thickness for a heavier film. The 18" and 20" 90 gauge and above is ideal for taller or heavier loads.

Q: What are the applications of stretch film?

A: Stretch films or wraps are stretchable plastic films that are used to wrap a product to keep them in place securely. They are commonly used in shipping pallets to keep products and boxes locked-in during shipping. They are a must-have for ecommerce businesses that often ship products.

Q: Is stretch film the same as shrink wrap?

A: Shrink film is used for packaging products. It shrinks to form around the shape of the products being packaged. Stretch film is used to wrap pallets of pre-packaged goods prior to shipping. Shrink film does not stretch and you cannot use it as a stretch film.

Q: What is the difference between cling film and stretch film?

A: Cling film is commonly used in kitchens and households for food storage and preservation. Unlike stretch film, cling film is not designed to be stretched or used for securing or stabilizing loads during transportation or storage.

Q: How do you calculate stretch film?

A: The formula for calculating the weight of stretch film is: Weight of stretch film = length * width * thickness * density; thickness (mm) x width (m) x length (m) x 0.92= weight (kg). The calculation of the price of stretch film is not very complicated.

Q: What is the shelf life of stretch film?

A: Generally speaking, stretch wrap is good for at least a year after you purchase it. However, that shelf life will vary depending on the manufacturer, where you store your film, and other factors. For example, temperature fluctuations can create issues with your film and cause it to expire sooner.

Q: Is stretch film waterproof?

A: Additionally, it is waterproof and protects products against dirt and damage. Thanks to its adhesion, the film perfectly stabilizes transported article and protects against unauthorized unpacking during transport. Also known as pe stretch film, stretch film, and high performance stretch film.

Q: What is the strongest stretch wrap?

A: Though it's only slightly thicker than a 60-gauge wrap, 63-gauge stretch wrap offers greater strength. It holds up better against tears and punctures, making it a superior option for product loads with sharp corners or edges. A 63-gauge film can handle loads up to 2,200 pounds.

Q: What are the raw materials for stretch film?

A: Stretch film is a plastic film that people often use. Its raw materials include metallocene polyethylene (mpe), lldpe, ldpe, eva, pvc. In addition, the raw materials of stretch film also include polypropylene copolymers. The performance is relatively strong, with tensile resistance, fracture resistance and so on.

Q: What type of plastic is stretch film?

A: Materials. The most common stretch wrap material is linear low-density polyethylene (lldpe), which is produced by copolymerization of ethylene with alpha-olefins, the most common of which are butene, hexene and octene.

Q: What does stretch film do?

A: Stretch film or stretch wrap is a highly stretchable plastic film that is used in packaging and shipping to wrap around items to keep them in place. The elastic recovery of stretch wrap keeps the items tightly bound. In contrast, shrink wrap is applied loosely around an item and shrinks tightly with heat.

Q: What is the difference between stretch film and shrink film?

A: Conclusion. Stretch film and shrink film have very different uses. Stretch film wraps and protects industrial pallets, while shrink film contains consumer goods for easy packaging and shelving. One cannot be used in place of the other.

Q: What is the standard size of stretch film?

A: Stretch wrap film is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. 3. Easy to peel length width 18 inch (450mm) & 12 inch material with thickness 23 micron faster and more economical to use than tape, strapping or twine.

Q: Can I use stretch film for food?

A: Stretch film plays a crucial role in maintaining food freshness. By creating an effective barrier against moisture loss and oxygen exposure, it helps to slow down the spoilage process in foods like fruits, vegetables, and meats.

Q: How do you wrap stretch film?

A: Begin wrapping: Start at the bottom of the load and work your way up, overlapping the film by 50% with each pass to create a secure wrap. Apply tension: Apply consistent tension to the film as you wrap to achieve proper containment force and load stability.

Q: Is stretch wrap sticky?

A: Unlike tape, plastic stretch wrap only sticks to itself, so it doesn't leave behind any sticky residue on wood finishes and other surfaces you want to keep protected. It's available in different gauges of plastic and sizes to accommodate a wide variety of items and use cases.

Q: Is stretch film the same as shrink wrap?

A: Unlike shrink wrap which is wrapped loosely and then sealed with heat, stretch wrapping involves stretching flexible plastic around the products to keep them in place. A group of packages are typically wrapped in the stretch film multiple times to help keep the packages together.

We're well-known as one of the leading stretch film rewinder manufacturers and suppliers in China. Please feel free to buy high quality stretch film rewinder at competitive price from our factory. For more information, contact us now.

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