Long welds and large structures
The 1900 mm reach covers structures that smaller arms cannot reach from a single position. The first choice for frames, tanks and steel structures.
Welderstal kit
WS-5 WML
Magnetic footSmart tool7th axisPendantPL/EN pluginConfigurationTrainingSupport
WS kit · welding cobot
WELDERSTAL
WS-5 WML
The WELDERSTAL WS-5 WML is a ready-to-work welding cobot built on the bare Fairino FR5-WML arm (5 kg payload, 1900 mm reach, ±0.1 mm repeatability, 6 axes). It has the longest reach in the family - for large structures and long welds. The WS model adds the torch, cell equipment, the Welderstal welding plugin, configuration, commissioning, training and support.
See what a welding cobot as a ready-made WS cell consists of.
5 kg
Payload
1900 mm
Reach
IWE
The WELDERSTAL engineering team
Certified International Welding Engineers
The WELDERSTAL WS-5 WML is a ready-to-work welding cobot built on the bare Fairino FR5-WML arm. The FR5-WML arm on its own is a technical base with 5 kg payload, 1900 mm reach, ±0.1 mm repeatability and 6 axes. It has the longest reach in the FR family.
The bare FR5-WML arm vs the WS-5 WML cobot
The WS model adds to the arm: the torch and welding equipment, part fixturing on the PIN 28 system, the Welderstal welding plugin, process configuration, safety assessment, commissioning, operator training and support after start-up.
Selection and deployment
We select the model after analysing the process - the part, weld, fixture, cycle time and space at the cell. Start with a process description. See also ready-made cobot kits, all WS cobots and the WS-3 WMS and WS-3 WML variants.
What you buy
What the WELDERSTAL WS-5 WML kit includes
You are not buying just the Fairino FR5-WML cobot arm. Our specialists analyse the cell and put together the complete WS cobot - from the tool and plugins to commissioning, training and support after start-up.
Technical base
The WELDERSTAL WS-5 WML cobot is built on the Fairino FR5-WML arm - 5 kg payload, 1900 mm reach.
See the Fairino FR5-WML arm 01 
Fairino FR5-WML cobot arm
5 kg payload, 1900 mm reach, 6 axes. The technical base of the kit.
02 
Magnetic foot
Quick mounting of the cobot on a steel table or part. With longer arms the PIN 28 system is used instead.
03 
Teach pendant
Touch control panel with an emergency button for programming and operating the cobot.
04 
Manual 7th axis
Torch angle adjustment from -60° to +60° without reprogramming the path. Matched to the weld in a few seconds.
05 
Smart tool
A wrist-mounted handle with buttons. The operator saves points and starts the program without reaching for the pendant.
06 
Welderstal plugin (Polish/English)
Weld sequences, points and arc parameters in the operator’s language. The code is generated in the background.
07
Process configuration
Paths, parameters and working logic set up for your part, product and cell pace.
08
Operator training
Operation, changeovers and programming new parts. The operator works independently from day one.
09
Support after start-up
Technical contact, materials, the forum and help with further parts.
Applications
What we select the WELDERSTAL WS-5 WML for
The most common tasks this cobot handles well. We confirm the final scope after a process analysis.
MIG/MAG welding on a welding table
Working across the whole table surface without moving the cobot. At this reach the cell is based on the PIN 28 system, not a magnetic foot.
Cells with an external axis
A base for a kit with a linear track or positioner when the structure is longer than the arm's reach alone.
Welderstal plugins
The WELDERSTAL WS-5 WML with Welderstal plugins
Plugins are the difference between a bare arm and a ready-made cell. The operator works with prepared points and parameters, and a changeover does not start with programming from scratch.
See the plugins
Accessories
Choose accessories for the WELDERSTAL WS-5 WML
We match equipment to the process: welding torch holders and torches, grippers, suction cups, fixtures, tables and positioners. Accessories are selected together with the model, not separately.
See it in action
See the videos See how our cobots perform in action
The best way is to see the cell at work. Below are clips from commissioning and cobot welding - you will find more in the videos section. The videos are narrated in Polish.
Parameters
WELDERSTAL WS-5 WML technical data
Parameters of the base Fairino FR5-WML arm. You will find the full datasheet of all FR models on the Fairino arms page.
5 kg
Payload
1900 mm
Reach
One level up
Kits the WELDERSTAL WS-5 WML works in
A cobot is an arm with equipment, ready to work. A kit goes a step further: it adds a process tool, an external axis or line equipment and becomes a complete cell.
Cell base
Basic kit
Repeatable parts that fit within the arm’s working envelope.
Linear axis
WS kit + linear track
Long structures or several workstations in one line.
Rotary axis
WS kit + positioner
Circumferential welds on pipes, sleeves and shafts.
Laser process
Laser welding kit
A process qualified for laser: welding, cleaning or cutting.
Safety
We assess safety for the whole cell
The Fairino FR arm is a collaborative robot - it has joint sensors and force limiting. Whether the cell can work without guarding, however, depends on assessing the whole: tool, part, speed, forces and surroundings. We carry out this assessment before commissioning.
CEISO 10218-1ISO/TS 15066IP54
Robotisation tax relief (Poland)
See the robotisation tax relief Part of the cobot cost can be deducted
For companies taxed in Poland, buying and deploying a cobot may qualify for the robotisation tax relief. See the rules and what the deduction covers.
Other models
Other WS cobots
Each WS cobot is built on a different Fairino FR arm - they differ in payload and reach.
FAQ
Frequently asked questions
How does the WS-5 WML differ from the bare Fairino FR5-WML arm?
The FR5-WML is the cobot arm alone in its welding variant, with 5 kg payload and 1900 mm reach. The WS-5 WML is a ready Welderstal cell built on that base: the FR5-WML arm, torch, equipment, welding plugin, process configuration, commissioning, training and support after start-up.
Why does the WS-5 WML not stand on a magnetic foot?
With a 1900 mm reach a magnetic foot cannot provide a stable cell base. That is why we supply the WS-5 WML kit on PIN 28 locating pins. After relocation the cobot returns to the same base and the program needs fewer corrections.
How does the WS-5 WML differ from the WS-5?
In reach and repeatability. The WS-5 WML has 1900 mm and ±0.1 mm, the WS-5 has 922 mm and ±0.02 mm. Both have a 5 kg payload and the rest of the kit is the same. We choose the WS-5 WML for large structures and the WS-5 for smaller parts where accuracy matters.
What is added to the arm in a WS kit?
The torch and welding equipment, part fixturing, a cell base on the PIN 28 system, the Welderstal welding plugin (Polish/English), process configuration, cell safety assessment, commissioning, operator training and technical support after start-up.
Next step
Send your cell for assessment - we will configure the WELDERSTAL WS-5 WML cobot
Describe the part, process, pace and space at the cell. On this basis we will select the model, tool, plugins and deployment scope.