# C-Arm Type 4 | 350 \u00d7 450 mm | NexGen \u2013 Water-Cooled C-Arm for High-Stress Resistance Spot Welding<\/p>\n
This detailed product description presents the high-performance, water-cooled Type 4 C-Arm manufactured by Wielander + Schill, specifically designed for the **InvertaSpot NexGen** resistance spot welding machines. This component is critical for the most demanding welding tasks, ensuring consistently perfect weld results and maximum stability.<\/p>\n
## Overview and Key Features<\/p>\n
The C-Arm Type 4 is designed for professional automotive repair and semi-industrial applications where reliability and durability are essential. The built-in cooling system enables continuous, high-load operation without premature wear of the welding electrodes or overheating of the arm.<\/p>\n
**Key Advantages:**<\/p>\n
* **High Load Capacity:** Optimized specifically for intensive, continuous use.
\n* **Consistent Quality:** Efficient cooling guarantees constant welding parameters.
\n* **Excellent Accessibility:** The 350 x 450 mm working area ensures optimal access to hard-to-reach joining points.
\n* **Robust Construction:** Manufactured using high-quality materials for long service life.<\/p>\n
## Technical Data and Specifications<\/p>\n
The table below summarizes the most important technical parameters of the C-Arm Type 4:<\/p>\n
| Property | Value | Comment |
\n| :— | :— | :— |
\n| **Product Name** | C-Arm Type 4 | NexGen Compatible |
\n| **Part Number** | 474004NG | |
\n| **Working Area (Length x Width)** | 350 x 450 mm | The maximum accessible welding window |
\n| **Length \u00d7 Width \u00d7 Height** | 620 x 580 x 70 mm | The physical dimensions of the arm |
\n| **Weight** | 8.02 kg | |
\n| **Cooling** | Yes (Water-cooled version) | Essential for continuous loading |
\n| **Materials** | Alu, Aluminum, CuCrZr, Rubber, Stainless Steel, Steel | Multiple material combinations for optimal performance |
\n| **Surface Treatment** | PU (Polyurethane) | |
\n| **Accessories (Basic Package)** | 1 pc assembled C-Arm Type 4 | |
\n| **Accessory Electrode** | 1 pc 495616 Electrode | 260 mm long electrode with a \u00d8 16 mm electrode tip |
\n| **Accessory Electrode Tip** | 1 pc electrode tip | \u00d8 16 mm |<\/p>\n
## Details of the Scope of Delivery<\/p>\n
When purchasing the C-Arm Type 4, the package includes the following items:<\/p>\n
1. **Assembled C-Arm Type 4:** The main unit, ready for connection to the welding machine and operation.
\n2. **Electrode (Part No: 495616):** A 260 mm long, straight electrode that already includes the required electrode tip (\u00d8 16 mm) and the copper sealing washer. This electrode is specifically sized for this C-Arm type.<\/p>\n
## Compatibility and Application Areas<\/p>\n
This C-Arm is exclusively designed for use with **InvertaSpot NexGen** series resistance spot welding machines. The 350 x 450 mm working area is ideal for repairing modern vehicle bodies, where welding increased-strength steels (HSS, AHSS) and aluminum components requires high precision and reliable heat input control.<\/p>\n
The design of the C-Arm allows access to welding points even in areas where traditional, shorter arms cannot reach, while the cooling ensures that welding cycles can follow each other quickly.<\/p>\n
## Recommended Accessories<\/p>\n
For maximum flexibility and adaptability to different welding tasks, numerous optional electrode caps and maintenance tools are recommended for the C-Arm Type 4. These accessories ensure that the most suitable welding surface is always available for the task.<\/p>\n
### Electrode Tips (\u00d8 16 mm)<\/p>\n
Welding quality largely depends on the geometry of the electrode cap. The types of compatible electrode caps with a Ø 16 mm diameter are listed below:<\/p>\n
| Part Number | Type | Geometry | Packaging | Feature |
\n| :— | :— | :— | :— | :— |
\n| 497102 | Form B + Form H Set | Various | 2 pcs B + 2 pcs H | Combination set for versatile use. |
\n| 497079 | Type B | Truncated cone-flat | 4 pcs\/PU | 20 mm length, 16 mm diameter. |
\n| 497081 | Type E | Straight | 4 pcs\/PU | 20 mm length, 16 mm diameter. |
\n| 497075 | Type F | Round | 4 pcs\/PU | 20 mm length, 16 mm diameter. |
\n| 497076 | Type P | Eccentric | 4 pcs\/PU | 20 mm length, 16 mm diameter. |
\n| 497096 | Type A-32 | Special | 6 pcs\/PU | 20 mm length, 16 mm diameter. Exclusively for C-Trafogun GT-V6. |<\/p>\n
### Maintenance Tools<\/p>\n
Regular maintenance of welding electrodes is essential for reliable weld seams.<\/p>\n
* **Electrode file (Part number: 298298):** **Electrode fix | Grain 60**. This tool ensures the cleaning and reshaping of worn or contaminated electrode tips. Only clean electrodes guarantee correct spot welding results.<\/p>\n
**Important note:** During the welding process, the electrode heads wear down. The selection of the correct type and condition of the electrode head, and its regular replacement\/cleaning, directly affects the mechanical strength and durability of the weld joint.<\/p>","protected":false},"excerpt":{"rendered":"
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