Longer welds on light structures
922 mm reach with a 3 kg payload. The arm covers a larger area of the table without repositioning the part during welding.
Welderstal kit
WS-3 WML
Magnetic footSmart tool7th axisPendantPL/EN pluginConfigurationTrainingSupport
WS kit · welding cobot
WELDERSTAL
WS-3 WML
The WELDERSTAL WS-3 WML is a ready-to-work welding cobot built on the bare Fairino FR3-WML arm (3 kg payload, 922 mm reach, ±0.05 mm repeatability, 6 axes). It is the FR3 variant with an extended arm - for longer welds while keeping a light design. 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.
3 kg
Payload
922 mm
Reach
IWE
The WELDERSTAL engineering team
Certified International Welding Engineers
The WELDERSTAL WS-3 WML is a ready-to-work welding cobot built on the bare Fairino FR3-WML arm. The FR3-WML arm on its own is a technical base with 3 kg payload, 922 mm reach, ±0.05 mm repeatability and 6 axes. It is the FR3 variant with an extended arm.
The bare FR3-WML arm vs the WS-3 WML cobot
The WS model adds to the arm: the torch and welding equipment, part fixturing, 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-5 WML variants.
What you buy
What the WELDERSTAL WS-3 WML kit includes
You are not buying just the Fairino FR3-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-3 WML cobot is built on the Fairino FR3-WML arm - 3 kg payload, 922 mm reach.
See the Fairino FR3-WML arm 01 
Fairino FR3-WML cobot arm
3 kg payload, 922 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-3 WML for
The most common tasks this cobot handles well. We confirm the final scope after a process analysis.
MIG/MAG and TIG welding
Repeatable torch guidance along a programmed path. The WML variant is factory-prepared for the welding process.
Cells with a fixture
Working with a part clamped in a fixture, when it matters to cover the whole structure from a single cobot position.
Welderstal plugins
The WELDERSTAL WS-3 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-3 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-3 WML technical data
Parameters of the base Fairino FR3-WML arm. You will find the full datasheet of all FR models on the Fairino arms page.
3 kg
Payload
922 mm
Reach
One level up
Kits the WELDERSTAL WS-3 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.
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-3 WML differ from the bare Fairino FR3-WML arm?
The FR3-WML is the cobot arm alone in its welding variant, with 3 kg payload and 922 mm reach. The WS-3 WML is a ready Welderstal cell built on that base: the FR3-WML arm, torch, equipment, welding plugin, process configuration, commissioning, training and support after start-up.
How does the WS-3 WML differ from the WS-3 WMS?
In reach and repeatability. The WS-3 WML has 922 mm and ±0.05 mm, the WS-3 WMS has 622 mm and ±0.02 mm. Both have a 3 kg payload and the rest of the kit is the same. We choose the WML when the part does not fit within 622 mm reach.
Is the WS-3 WML enough for larger structures?
With 3 kg payload and 922 mm reach it handles medium-sized structures within a single cell. For large structures and long welds we suggest the WS-5 WML with 1900 mm reach or a kit with a linear track.
What is added to the arm in a WS kit?
The torch and welding equipment, part fixturing, the cell base, 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-3 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.