Just Sewing?
Just RF Welding?
Most of our products require a combination of sewing and RF welding. Where RF welding is needed and feasible, we use the welding technique process, and where appropriate, we sew. We employ whichever method is necessary to create the best product for your needs.
At AmCraft Manufacturing, we understand that every commercial sewing project is unique. That is why we have honed our expertixe in contract sewing to provide tailored solutions that meet your specific requirements. Whether you need heavy-duty or detailed coated fabric sewing, we can do it all! We also offer RF welding services for products made with thermoplastics.
ISO 9000 processes are integrated into our operations to make sure all units will be to your specifications.
The sewn construction allows us to create flat or 3D tailored solutions with features like zippers, velcro and/or webbing straps to meet your exact specifications.
Sewn items can be made from any material a sewing machine needle can penetrate, and this method is often more cost-effective. It’s typically quicker to launch a new project with sewn construction, because the pattern-making and prototyping can be done faster.
We specialize in sewing medium to large items in quantities that are not cost-effective to manufacture in China. The materials we are using, but are not limited to, are coated or laminated fabric sewing. More leaning towards Heavy-duty fabric sewing.
RF welding is used specifically for thermoplastics like PVC, TPU, EVA, and certain fabrics coated with those materials.
The welded areas can either be made with a straight bar, with varying lengths and widths, or shaped using welding dies that allow for curves and corner seams. However, welding dies are expensive and only become cost-effective when producing large quantities of the same item.
The advantage of RF welding is its ability to create water and air-tight seams, integrate tubing into seams, and when combined with thermoformed materials, achieve 3D configurations.
Our contract sewing and RF welding services are backed by advanced technology and an experienced engineering team. Whether you require some of our existing products such as Sound Reducing Baffles, Safety Cushions, Bellows, Insulated Curtain Blankets, or your custom-sewn or radiofrequency welding products, the AmCraft Manufacturing team can help!
We will listen to your requirements such as for your application and consider your budget and timeline. Find the most economic process to your goal.
To get started today, submit a Request a Quote form with your project details and we will promptly get back to you.
For small, lightweight items produced in large quantities, particularly for the retail industry, overseas manufacturers may offer a lower cost per unit.
We at AmCraft Manufacturing specialize in cut-and-sew and RF-welding processes, producing products made from medium to heavy-weight materials, large-sized items, and products that require specialized attention due to their complex construction. One of the key benefits our customers value is our ability to quickly accommodate changes in product design or construction, ensuring a fast and efficient response to evolving needs.
If your product is made from RF-weldable materials, and after the design and tooling stages you require a relatively simple welding die with two or three processes, RF welding can be a more cost effective and faster production method for large quantities.
On the other hand, sewn construction does not require tooling and offers a wider range of sewable materials compared to RF-weldable ones. Additionally, if you need to combine different materials, sewing is often a more viable option for medium quantities and large items.
When comparing the two methods:
RF-welding tooling can be costly, especially depending on the complexity of the construction. While RF-welding has higher upfront costs than sewn construction, once the dyes are made, you cannot modify the design. In contrast, sewn construction allows for greater flexibility, as no tooling is needed, making it easier to accommodate changes during production.
There are four essential elements in RF welding:
Electromagnetic Energy: A RF welding machine generates high-frequency electromagnetic energy (ranging from 13.56 MHz to 27.12 MHz) and directs it into the materials being fused.
Dielectric Heating: The RF energy causes the molecules in the materials to vibrate, generating friction and heat. This heat softens the materials enough to allow them to bond together.
Pressure: Pressure is applied to ensure the materials fuse securely during the welding process.
Cooling: Once the materials have bonded, cooling is necessary. As the bonded materials cool, a strong and durable seam is formed.
This process produces high-quality, lasting seams, ideal for applications requiring sealed, airtight, or waterproof joints.
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