Next-level control for critical welds
high-performance orbital welding, simplified
When precision, portability, and performance matter, the P4+ AVC/OSC delivers. Designed for orbital tube and pipe welding, this compact yet powerful smart welding station combines advanced control technologies with job-site flexibility, giving you flawless welds wherever the work takes you.
When precision meets stability
At the core of the P4+ is a dual-control system engineered for consistent, high-quality welds. The integrated Arc Voltage Control (AVC) maintains a stable arc throughout the welding process, ensuring repeatable and flawless results. Complementing this, the Torch Oscillation Control (OSC) provides precise seam tracking and uniform weld distribution. Together, these systems create a balanced approach where stability and precision work in harmony, resulting in cleaner welds, reduced rework, and improved overall productivity.
Built for the field
Essentially an upgraded, more advanced version of the standard P4, the P4+ is purpose-built for real-world welding environments where flexibility and mobility are essential. Its single-phase power compatibility makes it ideal for on-site operations, including use with field generators. Weighing just 80 lbs (35 kg), the unit is easy to transport and position, while its compact footprint allows it to perform efficiently even in confined or restricted spaces. Additionally, the optimized duty cycle is specifically designed for tubing and piping applications, ensuring reliable performance in demanding conditions.
Why choose the P4+?
- Superior weld quality through advanced control systems
- Portable, compact, and job-site ready
- Fully connected for modern welding workflows
- Built for demanding orbital welding applications.
Advanced connectivity & data management
The P4+ integrates modern connectivity features to support efficient workflow management and traceability. With LAN, WLAN, and OPC-UA compatibility, the system can easily integrate into digital environments and production networks. Welding procedures can be archived and documented using a built-in printer or USB storage, while real-time data acquisition allows for monitoring and analysis. The system can store up to 200 welding programs internally, making it easy to switch between jobs and maintain consistency across projects.
Integrated cooling & gas control
To ensure safe and efficient operation, the P4+ incorporates a fully integrated cooling and gas management system. A built-in closed-loop water cooling system with a safety valve protects both the welding head and torch, maintaining optimal operating temperatures. Welding gas and backing gas flows are precisely controlled through adjustable mass flowmeters, ensuring consistent shielding and weld quality. In addition, forced ventilation provides effective cooling for the power source, enhancing durability and long-term reliability.
Benefits and Features:
– AVC (Arc Voltage Control) ensures a stable arc and consistently flawless welds
– OSC (Torch Oscillation Control) delivers precise, uniform weld seams
– Lightweight (80 lbs) and compact design for easy transport and use in confined spaces
– Single-phase, auto-range power (100–230 V) for maximum on-site flexibility
– Intuitive Polysoude GUI with automatic welding head recognition for fast setup
– Closed-loop control of torch rotation and wire feed for consistent process accuracy
– Wide, high-precision welding current range for demanding applications
– Built-in data logging, connectivity (LAN/WLAN/OPC-UA), and program storage (up to 200 WPs)
– Integrated water cooling and gas control systems for safe, reliable operation
– Compatible with a range of Polysoude welding heads and accessories for flexible setups
Compatible Welding Heads
MU IV
Polycar
TS 8-75
