5 Things to Know Before Buying Tape Rewinding Machine

Author: Benjamin

Feb. 24, 2025

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Tags: Agriculture

What you should know before buying a filament winding machine?

Purpose and Application

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Determine the specific purpose for which you need the filament winding machine. Understand the application requirements, such as the type of products you intend to manufacture, the materials you&#;ll be using, and the production volumes you expect. This will help you select a machine that aligns with your specific needs.

For example, if you need large capacity production output for CNG, H2, or LPG tanks probably you should consider a multi-spindle filament winding machine. It can wind from 2 up to 5 spindles simultaneously. In automated filament winding lines, if you want to be more economical and have fast operator interactions, you use pneumatically driven chucks for an automatic clamping system. Also, these multi-spindle machines have a double-drive carriage system that ensures the stability and the movement of the carriage axis is increased, and any shaking of the delivery eyes is eliminated. If you need a machine for product development where you can run different trials, you probably need a single spindle portal configuration.

Machine Specifications

Consider the technical specifications of the filament winding machine. Pay attention to parameters like the maximum winding diameter, maximum length, number of axes, winding speed, and tension control capabilities. Ensure that the machine specifications meet your production requirements and are compatible with the materials you plan to use.

For example, if you need to produce large composite parts up to 4m in diameter, you need Floor-bed and a heavy-duty unit. If you use towpreg material, you probably need 5 axes of control, for complex parts you may need more, like 6 axes of motion. Towpreg can be up to 2.5 times faster than wet filament winding. Winding speed can be over 5 meters per second, and a wide range of winding angles is possible. If you want to reduce operator interaction more, Mikrosam provides also its own patented and proven technology for automated starting, cutting, and restarting (CRS) of fibers on the winding program.

Material Compatibility

Filament winding machines can work with a variety of materials, including carbon fiber, fiberglass, Kevlar, and other composite materials. Verify that the machine you&#;re considering can handle the specific materials you intend to work with effectively. It should have the necessary features, such as resin delivery systems, to accommodate your materials.

For example, the first thing you should know is do you want a wet or dry (towpreg) winding machine. If you need a wet filament winding machine, you need a resin impregnation bath possibly with a resin mixing system for high automation. On the other hand, towpreg winding process requires special adjustments to the fiber creel and delivery eye. Compared to traditional wet filament winding, the towpreg process can make the workplace cleaner, as there is no wet resin, and safer, as prepreg exhibits little to no emission of volatile off-gassing compounds (VOCs), and thus does not expose operators to hazardous volatile chemicals. For multi-spindle machines, our resin baths have a programmable doctor blade for the resin pick-up set. Mikrosam solution provides that each of the fiber tapes that goes to different spindles can have individual and programmable resin pick-up adjustment. This is very important for the quality of the process, especially where each spindle has a different angle of the fibers coming from the resin bath.

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Automation and Control

Determine the level of automation and control required for your production process. Some machines offer manual control, while others are equipped with advanced automation features. Consider factors like ease of programming, operator interface, and the ability to customize winding patterns. Depending on your needs, you may opt for a more automated machine or one that allows for greater manual control. A Mikrosam machine comes with its own software, so no third-party software is required.

For example, WindingExpert is a software solution developed by Mikrosam that is used for the Pattern Generation of our Filament Winding machines. The software can generate a mandrel model, which is used to calculate fiber paths and winding patterns. Besides that, it provides a lot of amazing features like Cad and Excel mandrel import, a user-friendly interface, material and thickness reports, mandrel volume calculator, burst pressure calculator, G Code import, ISO standard, and support for different types of controllers.

Production Capacity

Evaluate the production capacity of the machine. Consider factors such as the number of spindles or mandrels, the winding speed, and the ability to handle multiple winding operations simultaneously. Ensure that the machine can meet your production volume requirements without sacrificing quality or efficiency.

For example, if you are a producer of LPG tanks and you need to produce 300,000 &#; 1,000.000 units per year, a couple of multi-spindle machines with automation can suffice. However, for CNG and CHG tanks, with longer winding cycles, consider at least several winding machines with supporting units for handling to achieve maximum effectiveness.

Quality and Precision

Filament winding involves creating complex structures, so it&#;s essential to choose a machine that can achieve the required level of quality and precision. Look for features like accurate tension control, programmable winding patterns, and reliable mandrel rotation. Consider the machine&#;s track record, reviews from other users, and any certifications or standards it complies with.

For example, the TCON system &#; top-level automation and manufacturing historian developed by Mikrosam &#; collects details of process parameters at each step of production in a data warehouse even collecting data from 3rd party auxiliary equipment (e.g. blow molding, testing equipment, etc.). The software integrates the data into the factory ERP to ensure traceability and quality improvement while giving customers unlimited reporting capabilities. The utilization of manufacturing historians such as Mikrosam&#;s TCON as part of their SCADA system in the filament winding process for manufacturing high-pressure vessels to store hydrogen is indispensable. These systems enable quality control, process optimization, traceability, and predictive maintenance, contributing to the production of safe, efficient, and reliable high-pressure vessels.

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Article: "Should You Rewind a Cassette Tape?" | Tapeheads.net

Should you rewind a cassette tape? - All For Turntables

Rewinding a cassette tape is a common practice, but there is some debate about whether it is actually necessary. Some people believe that rewinding a tape can damage it, while others believe that it does not have any significant impact. The truth is that rewinding a cassette tape can potentially...
I don't understand what the article means by cheap players rewinding unevenly. I don't really have problems unless I'm frequently winding tape with static charge problems. Sometimes I might cringe at decks without winding brakes or any sort of hub inertia because often I see the momentum of the supply reel throw tape all over the place when suddenly stoping. You get the best tapepack if you play a cassette in a dual capstan deck straight until the end!
This pack is even and tight and if your tape has got eaten it is your best choice to let that tape pack sit for a while and let it &#;iron out&#; the wrinkles.
If you forward and rewind a tape before recording is up to you. I only do it with tapes that are prone to squeeling.
The most important thing is to STORE your tapes rewinded otherwise they might oxidate on the exposed tape and cause dropouts like with every unproper stored TDK SA I have. Double coated tapes are not so much affected from this effekt.

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