Sub­mergedarc welding

Submerged arc welding systems for longitudinally welded large-diameter pipes (LSAW), tank and container construction and offshore wind industry

With our highly developed submerged arc welding systems (SAW), we offer you a welding process that is ideal for long and precise seams. The automated process with consumable wire electrode impresses with its high melting performance and outstanding quality. SAW welding systems from AWS Schäfer are available as longitudinal and circumferential welding systems, plate welding systems or automatic welding column and boom and offer greater flexibility with up to seven welding heads.

Our in-house process control system AWS ONE Master Control enables intuitive control of all processes. The welding data monitoring system meets the highest traceability requirements and can be easily integrated into your quality management system.

Our modern welding flux supply systems with flux recovery and preparation ensure greater sustainability and efficient use of filler materials - for maximum process reliability and the highest material quality.

Facts and figures

Technical data for submerged arc longitudinal and circum­ferential seam welding systems

Outer diameter: 406,4 – 12.000 mm 16″ – 472,4″
Wall thickness: 6 – 150 mm
Lengths: 1.500 – 28.000 mm
Welding speeds: 300 – 2.400 mm/min.
Materials: all weldable carbon and stainless steels

Insights in our projects

Picture gallery

Submerged arc longitudinal and circumferential seam welding systems (inside/outside)

Submerged arc longitudinal and circumferential seam welding systems from AWS Schäfer offer you maximum flexibility and efficiency thanks to their stationary or mobile design and the use of 1 to 5-wire welding technology.

  • Welding head with linear supports, wire feed unit with servo drive technology
  • Camera system, non-contact or tactile height and side scanning
  • Innovative wire guide and wire straightening unit
  • Energy-saving inverter technology
  • AWS ONE Master Control process control system based on Siemens S7 with complete control panel for all system functions including control of workpiece manipulation
  • Welding data monitoring system
  • Remote maintenance module for uncomplicated and fast problem solving
  • Heated welding flux supply system with flux recovery

Submerged arc plate welding system

The submerged arc plate welding systems from AWS Schäfer can be used to produce steel plates that are not available in conventional sizes. These welded plates are used in the manufacture of pipe sections for offshore foundations and for composite panels in shipbuilding.

  • Stationary version rotatable by +/-180° or as a mobile portal
  • Sheet support tables with integrated sheet manipulation device
  • Optional 1- to 5-wire submerged arc welding technology
  • Welding head with linear supports, wire feed unit with servo drive technology
  • Camera system, non-contact or tactile height and side scanning
  • Innovative wire guide and wire straightening unit
  • Energy-saving inverter technology
  • AWS ONE Master Control process control system based on Siemens S7 with complete control panel for all system functions including control of workpiece manipulation
  • Welding data monitoring system
  • Remote maintenance module for uncomplicated and fast problem solving
  • Heated welding flux supply system with flux recovery

Submerged arc welding column and boom

Our submerged arc welding machine carriers enable precise welding of longitudinal and circumferential seams from both the inside and outside - in a single operation. With smooth operation and the flexible configuration for 1-wire, tandem or 3-wire submerged arc welding technology, they guarantee stability even under extreme conditions. Thanks to the wear-free roller guide system, a long service life and maximum efficiency are guaranteed, even in three-shift operation.

  • Designed according to your individual requirements
  • Available with 1- to 3-wire submerged arc welding technology
  • Servo drive technology in wear-free design
  • Camera system, non-contact or tactile height and side scanning
  • Innovative wire guide and wire straightening unitEnergy-saving inverter technology
  • AWS ONE Master Control process control system based on Siemens S7 with complete control panel for all system functions, including control of workpiece manipulation
  • Welding data monitoring system
  • Remote maintenance module for uncomplicated and fast problem solving
  • Heated welding flux supply system with flux recovery
  • Robust, jolt and vibration-reduced design

AWS ONE Master Control - welding and system control unit

The heart of our submerged arc welding systems is the AWS ONE Master Control, which controls all functions and peripherals in a single, user-friendly unit. With interfaces such as Profibus and Profinet, up to five welding wires can be monitored and adjusted simultaneously, while our “Welding Data Analyzer” documents the welding quality in real time.

  • Digital process control with auto-tuning and comprehensive system monitoring
  • User-friendly interface and visualization of all welding parameters
  • Live data monitoring and automatic report generation in the event of deviations
  • Job memory function for individual parameter sets and archiving
  • RFID operator management with reporting

Submerged arc welding

Sascha Cuntz

Would you like to find out more about our submerged arc welding technology and our services in the areas of submerged arc longitudinal/rotary seam welding systems, submerged arc plate welding systems and submerged arc welding machine carriers? I will be happy to help you!

Sascha Cuntz, your AWS specialist for submerged arc welding

Advantages

  • Customized solutions with innovative technology
  • System control via a complete control panel
  • Low-maintenance and maintenance-friendly system technology
  • Integration of all well-known welding power source manufacturers
  • High deposition rates with up to five wires
  • User-friendly and tried-and-tested user interface
  • Welding data monitoring system
  • Remote maintenance module for fast support
  • Heated welding flux supply system with flux recovery and flux preparation
  • Experience as the exclusive supplier of submerged arc welding technology in many pipe mills worldwide

Our quality promise

The AWS principle

Meeting individual requirements

Your requirements are unique. We work with you to develop a machine that is precisely tailored to your needs. We meet your requirements with tailor-made concepts.

Using knowledge successfully

Take advantage of our knowledge! Thanks to many years of experience and our technical expertise in global pipe production, we take all relevant country-specific standards and guidelines into account when developing your machine.

Support at all levels

We are also at your side after your machine has been manufactured. Whether it's on-site assembly, training your employees or adapting to new requirements - we provide you with reliable, long-term support.

Submerged arc welding (SAW)

The submerged arc welding systems (SAW) from AWS Schäfer offer you maximum efficiency and quality when welding long seams! Our systems can be configured flexibly with up to five welding heads and energy-saving inverter technology. You benefit from a user-friendly control system that integrates all common welding power sources and an innovative welding powder supply system that focuses on sustainability and high powder quality. These tailor-made solutions improve your productivity and reduce your operating costs at the same time.

Pipes and pipe mill technology

Whether sheet metal measuring system, sheet metal bending press, pipe calibrating press or pipe end milling machine - our pipe mill technology solutions offer maximum precision and reliability for your demanding pipe production projects! Our modern sheet metal measuring and forming systems as well as end processing machines are in use worldwide and can be seamlessly integrated into existing or newly planned pipe mills.

Special-purpose machines

If standard machines do not meet your requirements, our custom-made machines come into play! Our team of engineers can look back on numerous successful projects in the implementation of individual machines for forming and processing steel and pipe products. We also carry out retrofits, upgrades and conversions of machines and systems.