The Automated Oscillation Welding Carriage is engineered to replace slow and inconsistent manual welding on circular and curved structures. The Cruxweld DynaFlex 100S delivers precise, repeatable circumferential welding automation for storage tanks, pressure vessels, pipelines, and large cylindrical components.
This Automated Oscillation Welding Carriage combines a flexible magnetic track with a servo-controlled oscillation system, enabling smooth 360-degree travel on any radius. Designed for heavy industrial fabrication, it ensures consistent weld quality, reduced setup time, and higher productivity across all welding positions.
Runs on Any Shape or Diameter
The flexible magnetic rail adapts instantly to circular, curved, and straight surfaces, allowing the Automated Oscillation Welding Carriage to perform circumferential welding on tanks of varying diameters without custom fixtures.
Rapid Magnetic Setup
High-strength permanent magnets allow the track to snap securely onto ferrous surfaces without drilling or tack welding, significantly reducing setup time in tank welding automation projects.
Unlimited Welding Length
Interconnectable rail segments enable continuous travel for long circumferential or longitudinal seams on storage tanks, vessels, and pipelines.
Stable Vertical & Overhead Welding
The magnetic track maintains firm adhesion on vertical and overhead surfaces, ensuring slip-free motion and stable welding in all positions.
Reduced Labor & Faster ROI
By eliminating custom jigs and manual handling, the Automated Oscillation Welding Carriage lowers labor costs and delivers faster return on investment.
The Automated Oscillation Welding Carriage is equipped with a servo-controlled linear oscillation unit featuring five precision weaving modes. These oscillation patterns replicate the skill of an expert welder while maintaining consistent heat input and penetration.
Straight Travel Mode: Ideal for stringer beads, narrow joints, and precision cutting applications.
Square Wave Oscillation: Provides stable heat distribution for flat, uniform weld beads.
Triangle Weave Pattern: Optimized for root passes and controlled penetration on open joints.
Multi-Step Weave Mode: Designed for deep penetration and multi-pass welding on thick plates and pressure vessels.
High-Speed Wave Pattern: Produces smooth cap passes on wide joints with minimal post-weld grinding.

The Automated Oscillation Welding Carriage is designed as a universal welding carriage, compatible with MIG/MAG, FCAW, and TIG welding processes. Its adjustable torch holder supports standard welding torches, allowing easy integration with existing power sources.
By swapping the welding torch for a plasma or oxy-fuel torch, the system also functions as a welding and cutting automation carriage, enabling automated beveling, edge preparation, and cutting operations.
Learn more about Welding Automation Systems.
The Automated Oscillation Welding Carriage is widely used across industries requiring long, continuous weld seams:
Tank & Vessel Fabrication – Circumferential and vertical tank seams
Pipeline Construction – Large-diameter pipe welding (OD / ID)
Shipbuilding – Hull welding and stiffeners
Wind Towers & Structural Shells
Heavy Industrial Fabrication
Explore MIG Welding Machines compatible with this system.
300% Productivity Improvement
Continuous automated welding eliminates operator fatigue and stop-start weld defects.
Consistent X-Ray Quality Welds
Controlled oscillation ensures uniform penetration and bead profile on every pass.
All-Position Welding Stability
Rack-and-pinion drive with magnetic track prevents slippage on vertical and overhead welds.
Lower Capital Equipment Costs
One flexible track system replaces multiple diameter-specific fixtures.

The Automated Oscillation Welding Carriage supports high-quality fabrication aligned with international welding automation standards defined by organizations such as ASME.
It is a mechanized welding tractor that travels along a track while weaving the torch to automate joining processes. The DynaFlex 100S is a premium Automated Oscillation Welding Carriage designed specifically for circular seams on tanks and vessels.
A flexible magnetic track adapts instantly to any tank diameter or curvature without the need for custom fixtures. It attaches strongly to ferrous surfaces, allowing for rapid setup and precise torch alignment on both vertical and overhead circumferential welds.
Yes. The DynaFlex 100S is a dual-purpose welding and cutting automation carriage. It is compatible with standard MIG/MAG and TIG torches for welding, and can easily be swapped with Plasma or Oxy-fuel torches for automated beveling and cutting.
Yes. The system utilizes a heavy-duty rack-and-pinion drive and powerful permanent magnets to ensure slip-free travel. This makes it ideal for all-position welding, including vertical-up (3G) and overhead (4G) seams on large storage tanks.
| Model | DynaFlex 100S |
| Product Type | Automated Tank Welding Tractor / Flexible Track Welding Carriage |
| Track Type | Flexible Magnetic Track (Spring-Steel Composite Rail) |
| Rail Segment Length | 1800 mm (Interconnectable for unlimited run length) |
| Rail Mounting | 6 Sets of High-Strength Magnetic Blocks per Segment |
| Track Width | 50 mm |
| Welding Processes Supported | MIG / MAG / FCAW / TIG |
| Cutting Processes Supported | Plasma Cutting / Oxy-Fuel Cutting |
| Welding Directions | Horizontal / Vertical / Circumferential / Overhead |
| Drive Motor | DC Motor with Planetary Gearbox |
| Travel Speed Range | 0 – 1200 mm/min (Variable) |
| Speed Control | PWM Electronic Digital Speed Controller |
| Travel Accuracy | ±1% (up to ±0.5% at set speed) |
| Oscillation Type | Servo-Controlled Linear Oscillation |
| Oscillation Stroke | 0 – 30 mm (Adjustable) |
| Oscillation / Weaving Modes | Straight, Square Wave, Triangle, Multi-Step, High-Speed Wave |
| Torch Adjustment (Horizontal) | ±45° |
| Torch Adjustment (Vertical) | ±15° |
| Input Power Supply | 1-Phase AC 220V ±10%, 50/60 Hz |
| Power Consumption | ≤ 50 W |
| Motor Output Torque | 1.2 – 1.5 N·m (Planetary Reduction) |
| Carriage Weight | Approx. 10 kg |
| Rail Segment Weight | Approx. 3.8 – 4.2 kg per 1.8 m segment |
| Carriage Dimensions (L × W × H) | 320 × 220 × 250 mm |
| Body Construction | Aluminum Alloy & Steel Composite |
| Rail Thickness | Approx. 2.0 – 2.5 mm |
| Operating Temperature Range | −10°C to +45°C |
| Protection Class | IP21 |
| Remote Operation | Compatible with Optional Remote Pendant |
| Optional Accessories | Torch Oscillator, Remote Controller, Magnetic Rail Extensions, Wire Feeder Bracket |
| Typical Applications | Storage Tanks, Pressure Vessels, Pipelines, Wind Towers, Shipbuilding, Heavy Fabrication |