# PTFE Inner Liner with Aluminum Reinforcement | 3.5 m | Red | With Copper Spiral (Part Number: 337108)<\/p>\n
This detailed product description presents the professional welding accessory from Wiel\u00e4nder+Schill, the PTFE inner liner with part number 337108, which is specially optimized for MIG (MAG) welding processes. This component is crucial for the stable and reliable transmission of the welding wire from the wire feeder to the end of the welding torch.<\/p>\n
## Comprehensive Product Description<\/p>\n
The product is a high-quality **PTFE (Polytetrafluoroethylene) liner** (also known as an inner wire guide tube), which is placed inside the welding torch cable. The outstanding frictional properties of the PTFE material ensure minimal resistance for the welding wire to pass through, which is essential for continuous and smooth arc maintenance.<\/p>\n
This specific model has a **length of 3.5 meters** and is equipped with a **red color code**, which aids in quick identification in the workshop environment. A distinguishing feature of the product is that it is equipped with a **built-in 22 cm copper spiral**. This copper spiral provides additional mechanical stability and extra guidance for the wire, especially near the torch neck area, where it is most prone to kinking or increased resistance due to friction.<\/p>\n
Although the description mentions the \u201ePlastic liner in black\u201d, based on the product name and visual identification, this specific version reinforced with a copper spiral is intended with the given specifications (3.5 m, red). The purpose of the liner is to minimize the friction between the wire and the inner wall of the tube, thereby reducing the risk of malfunctions and increasing welding efficiency.<\/p>\n
To maintain stable wire feeding, the manufacturer recommends regular replacement of the liners, as the inner surface wears out during continuous use, which can impede wire movement.<\/p>\n
## Main Features and Advantages<\/p>\n
* **Superior Wire Guidance:** PTFE material provides an extremely low coefficient of friction, guaranteeing the smooth and unobstructed flow of the welding wire.
\n* **Reinforced Structure:** The built-in 22 cm copper spiral offers extra rigidity and protection to the section of the cable that is most exposed to wear.
\n* **Wide Compatibility:** Specifically designed for welding wires with diameters of 1.0 mm and 1.2 mm, ideal for common automotive body repair applications.
\n* **Length:** The 3.5-meter length provides adequate flexibility for most standard MIG\/MAG torches.
\n* **Color Coding:** The red color facilitates quick visual identification among liners designated for different wire sizes or types.<\/p>\n
## Technical Data<\/p>\n
The precise technical parameters of the product ensure compatibility and reliable performance with Wiel\u00e4nder+Schill systems and other compatible MIG\/MAG equipment.<\/p>\n
| Property | Value | Comment |
\n| :— | :— | :— |
\n| **Part Number** | 337108 | Unique Identifier |
\n| **Length** | 3.5 m (3500 mm) | Total length of the liner |
\n| **Compatible Wire Diameters (\u00d8)** | 1.0 mm and 1.2 mm | Dual compatibility |
\n| **Liner Material** | PTFE (Plastic) | Low-friction polymer |
\n| **Reinforcement Material** | Copper | Built-in spiral |
\n| **Copper Spiral Length** | 22 cm | Length of the spiraled section |
\n| **Color** | Red | Differentiating indicator |
\n| **Overall Dimensions (L x W x H)** | 3500 x 4.5 x 4.5 mm | Outer dimensions of the liner |
\n| **Application Area** | MIG Welding (Gas-shielded arc welding) | Wire feeding |<\/p>\n
## Application Area and Maintenance<\/p>\n
This PTFE liner is an essential accessory for gas-shielded arc welding, especially in industrial and workshop environments where frequent torch wire replacement and continuous, uninterrupted operation are crucial. The copper spiral design is particularly advantageous for longer torch cables or in working environments where the cable is subjected to significant bending.<\/p>\n
**Maintenance Importance:** The most common cause of welding wire feeding problems (e.g., stuttering, wire slippage) is the wear of the inner liner. The liner surface wears out over time, or welding slag and dust can accumulate on it. Regular, proactive replacement of the 3.5 m long liner reinforced with a copper spiral ensures the optimal performance of the welding equipment and extends the torch's lifespan.<\/p>\n
## Compatible Accessories<\/p>\n
The following accessories are also available related to the product for complete maintenance and professional installation:<\/p>\n
1. **O-ring PTFE Liners (Part Number: 337143):** This component ensures the sealing and fixing of the liner in the correct position within the torch or the wire feeder unit, preventing movement and air ingress.
\n2. **Copper Spiral | 22 cm (Part Number: 337110):** This item is likely the replaceable, separate copper spiral used to reinforce the liner, in case the original spiral gets damaged or if reinforcement is needed for a different type of liner.<\/p>\n
The combined use of these components guarantees the professional quality represented by Wiel\u00e4nder+Schill in the field of body repair technologies.<\/p>","protected":false},"excerpt":{"rendered":"
3.5 meter, red PTFE inner liner with aluminum reinforcement and copper spiral for welding torches. Part number: 337108.<\/p>","protected":false},"featured_media":376732,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[1737],"product_cat":[19384],"product_tag":[],"class_list":["post-359826","product","type-product","status-publish","has-post-thumbnail","product_brand-wielanderschill","product_cat-szervizberendezesek","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359826","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/comments?post=359826"}],"version-history":[{"count":1,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359826\/revisions"}],"predecessor-version":[{"id":379891,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product\/359826\/revisions\/379891"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/media\/376732"}],"wp:attachment":[{"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/media?parent=359826"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_brand?post=359826"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_cat?post=359826"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/met-industry.hu\/en\/wp-json\/wp\/v2\/product_tag?post=359826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}