Welding Robots
FD-VC4, FD-VC4L and FD-VC8 Collaborative Robots

FD-VC4 Collaborative Robot
Compact, precise, and user-friendly, the FD-VC4 collaborative robot is ideal for small production spaces. Designed to simplify welding processes, it provides exceptional performance while maintaining a compact footprint.
- Offers a wide working range with an independently articulated arm
- Seamless digital connection with all OTC DAIHEN brand welding power supplies
- Improved vibration restraining control provides smooth robot movement
- Built-in mechanical shock sensor
- Single source technology – all components are manufactured by OTC DAIHEN
- Highly versatile design supports most welding applications

FD-VC4L Collaborative Robot
With an extended reach and advanced capabilities, the FD-VC4L is designed for larger components and greater flexibility. It offers the same user-friendly programming and safety features as the FD-VC4, with the added benefit of increased working range.
- Extended reach for larger components
- Supports CO2/MAG, TIG, and ultra-low spatter welding
- Hand-guided programming for quick setup
- Designed for flexible production environments

FD-VC8 Collaborative Robot
The FD-VC8 is an 8kg-payload collaborative welding robot built for flexibility and ease of use. With a long 1567mm reach and high welding accuracy, it enables shops to automate larger part welds safely and efficiently—without the complexity of traditional robot programming.
- Long reach (1567 mm / 61 in) allows welding of larger assemblies and extended work envelopes.
- 8 kg payload collaborative design enables safe, flexible operation alongside human workers.
- Hand-guided setup and tablet pendant make programming fast and intuitive, even for beginners.
- High-precision welding performance ensures consistent, repeatable quality across part variations.
What Are Collaborative Robots?
The FD-VC4 and FD-VC4L are user-friendly collaborative robots built for precision and efficiency. They bridge the gap between manual welding and industrial automation, providing an entry-level solution for companies looking to scale.
Applications for Collaborative Robots
These cobots are designed to enhance production across a variety of industries.
- Small-to-Medium Manufacturers: Perfect for scaling up operations.
- Skilled Welders: Focus on complex tasks while the cobot handles routine welds.
- Hazardous Material Work: Ideal for tasks involving galvanized or zinc-plated steel.

Key Features: Built for Quality, Simplicity, and Precision
Unmatched Welding Quality:
Achieve superior results with advanced welding capabilities, including CO2/MAG, TIG, and ultra-low spatter welding. Designed with precision in mind, these cobots deliver consistent, high-quality welds every time.
Simplified Use:
From setup to operation, the FD-VC4 and FD-VC4L are built for ease of use. With hand-guided programming and an intuitive teach pendant, even operators new to automation can quickly create efficient welding processes.
Effortless Teaching:
Teaching the cobots is as simple as guiding the robot’s arm to the desired welding position. The integrated system adjusts parameters automatically, eliminating complexity and enabling seamless transitions between tasks.
Ready to Automate?
Contact us today to see how OTC DAIHEN cobots can elevate your production process.
