COBOTs

Safe, Smart, and Flexible Welding Automation for the Modern Industry

OTC COBOTs represent the latest innovation in collaborative welding technology from OTC Daihen. Engineered for both flexibility and safety, these 6-axis robotic arms are designed to work directly alongside human operators—without traditional safety barriers. Thanks to their lightweight, rounded design, OTC COBOTs are ideal for a wide range of production settings, from compact work cells to open manufacturing lines.

Not only do they enhance productivity, but they also support safer, more ergonomic working conditions, especially for repetitive or hazardous welding tasks.

Models That Deliver Consistency and High-Performance Welding

FD-VC4

Compact Power with Precision

The FD-VC4 model is optimized for precision welding in small to mid-sized applications. With repeatability of ±0.02 mm, it ensures stable arc performance in CO₂/MAG, TIG, and low-spatter welding processes. This makes it perfect for both spot welding and complex seam tracking, delivering consistent quality every time.

Additionally, the intuitive user interface allows easy programming—even for first-time robot operators.

Each OTC COBOT delivers high repeatability (±0.02 mm) and stable arc control, supporting various welding processes such as CO₂/MAG, TIG, and low-spatter techniques. Whether it’s spot welding or complex seam tracking, OTC COBOTS perform with speed, accuracy, and consistency to meet the quality demands of modern manufacturing.

FD-VC4L

Extended Reach and Maximum Flexibility

When you need a longer arm to handle larger components, the FD-VC4L is the solution. This model offers all the benefits of the FD-VC4, plus:

Extended reach up to 1,317 mm for bigger workpieces
Compact, space-saving frame – easy to install in limited workspaces
Certified to international safety standards for peace of mind
±0.02 mm repeatability – ideal for critical weld precision
Multiple teaching modes, including hand guidance and tablet control
IP65-rated durability – withstands dust, sparks, and welding fumes

Why Choose OTC COBOTs?

OTC collaborative robots are not only built for performance, but also for efficiency and adaptability. As manufacturing needs evolve, these COBOTs make it easier to scale automation without sacrificing safety or workspace flexibility.

By combining human intelligence with robotic accuracy, they help reduce errors, improve cycle times, and deliver consistent quality across every weld.

Key Features:

- 6-Axis Collaborative Design
- ±0.02 mm High Repeatability
- Safe Operation Without Safety Fence
- Hand Guidance & Tablet Programming
- Supports CO₂/MAG, TIG, and Low-Spatter Welding
- IP65 Dust and Fume Protection
- Compliant with International Safety Standards

Specification:

Model	FD-VC4	FD-VC4L
Arm Reach	910 mm	1,317 mm
Repeatability	±0.02 mm	±0.02 mm
Axis Count	6	6
IP Rating	IP65	IP65
Safety	ISO/IEC Compliant	ISO/IEC Compliant
Interface	Hand/Tablet Control	Hand/Tablet Control

Explore smarter welding automation with OTC COBOTs.
Visit our showroom or request a demo today.

Fitting your needs

PRODUCTS

OTC FD-VC4L

cobot with 1,317 mm reach and ±0.02 mm accuracy, ideal for safe, precise, and flexible welding automation tasks.

OTC FD-VC4

4 kg payload collaborative welding cobot, 37 kg lightweight, ISO‑compliant safety, high trajectory accuracy—perfect for compact, flexible welding.