Orbital Service Closed Weld Heads (CWH Series)
High-performance closed orbital weld heads designed for precision tube and pipe welding in controlled environments. Built for repeatability, cleanliness, and consistency, these heads are the industry standard for high-purity applications where weld quality cannot be compromised.
Browse the full Orbital Service collection for closed weld heads and related orbital TIG equipment.
We supply the full range of closed weld head systems, covering multiple diameters and configurations to support everything from small tube fabrication to larger industrial orbital welding applications.
What Are Closed Weld Heads?
Closed weld heads are orbital welding devices that fully enclose the weld joint during operation. This creates a controlled welding environment, ensuring clean, high-quality welds with minimal contamination.
These systems rotate 360° around the tube while maintaining shielding gas coverage, making them ideal for:
- High-purity tubing systems
- Stainless steel process piping
- Pharmaceutical and semiconductor fabrication
- Food-grade and sanitary applications
- Precision fabrication environments
Key Benefits
- ✔ Fully enclosed weld environment for maximum purity
- ✔ Consistent, repeatable orbital welds
- ✔ Ideal for thin-wall stainless steel tubing
- ✔ High-precision alignment and clamping systems
- ✔ Reduced operator error and improved weld quality
- ✔ Available in multiple sizes and configurations
Product Range Overview
We offer the complete CWH Closed Weld Head Series, designed to cover a wide range of tube diameters and industrial requirements:
Small Diameter Precision Heads
Designed for compact, high-precision work in tight spaces and high-purity systems.
- CWH 5H
- CWH 10H
- CWH 13
Ideal for:
- Semiconductor tubing
- Laboratory systems
- Pharmaceutical production lines
Mid-Range Closed Weld Heads
Balanced performance and versatility for general fabrication and process piping.
- CWH 21
- CWH 38
Ideal for:
- Stainless steel process piping
- Industrial fabrication
- Modular piping systems
Large Diameter Closed Weld Heads
Heavy-duty orbital heads built for larger pipe systems and demanding environments.
- CWH 53
- CWH 76
- CWH 115
Ideal for:
- Industrial process piping
- Energy and chemical systems
- High-duty-cycle production welding
Technical Highlights
- Diameter range: approx. 3 mm to 114.3 mm (0.12" to 4.5")
- Cooling options: gas-cooled and water-cooled models depending on size
- Modular clamping systems for fast setup and repeatability
- Self-centering clamp design on select models for improved alignment
- Designed for thin-wall orbital TIG applications up to ~3 mm wall thickness
Why Choose Our Closed Weld Heads?
Closed weld heads are critical when weld integrity and cleanliness matter. Our full range ensures you always have the right tool for the job—whether you're working on ultra-fine tubing or larger industrial pipe systems.
We support:
- System integration guidance
- Compatibility matching with orbital power supplies
- Application-based head selection
- Replacement consumables and clamping accessories
Applications
- Orbital TIG welding systems
- High-purity gas distribution lines
- Pharmaceutical manufacturing
- Food & beverage processing lines
- Semiconductor fabrication
- Aerospace and precision manufacturing
Need Help Choosing the Right Head?
Not sure which closed weld head fits your application? We can help match the right model based on:
- Tube diameter
- Material type
- Wall thickness
- Job site vs workshop use
Technical Specifications
| Specification | Details |
|---|---|
| Product Series | Orbital Service CWH Closed Weld Heads |
| Welding Process | Orbital TIG Welding |
| Tube Diameter Range | 3 mm – 114.3 mm (0.12" – 4.5") |
| Cooling Options | Gas-cooled and water-cooled models |
| Clamping Systems | Removable blocks, spring steel clamps, advanced jaw systems |
| Alignment Options | Self-centering clamp systems available on select models |
| Maximum Recommended Wall Thickness | Approximately 3 mm |
| Available Models | CWH 5H, CWH 10H, CWH 13, CWH 21, CWH 38, CWH 53, CWH 76, CWH 115 |
Frequently Asked Questions
What tube sizes are available with Orbital Service Closed Weld Heads?
The CWH Series covers tube outside diameters from 3 mm to 114.3 mm (0.12" to 4.5") across eight different models.
Which closed weld head do I need for my tube OD?
Orbitalservice gives these tube OD ranges: CWH 5H 3 to 15.88 mm (water-cooled); CWH 10H 6.35 to 25.4 mm (water-cooled); CWH 13 3.17 to 12.7 mm (gas-cooled); CWH 21 3.17 to 21.3 mm (gas-cooled); CWH 38 3.17 to 38.1 mm (gas-cooled); CWH 53 6 to 53 mm, CWH 76 6 to 76.2 mm and CWH 115 8 to 114.3 mm (all water-cooled). The CWH 5H and 10H are designed for wall thicknesses up to 2.0 mm.
