MIG/MAG and TIG welding of small parts
Robotic torch guidance along a programmed path on small, repeatable parts. The compact 622 mm reach suits small welding cells.
Welderstal kit
WS-3
Magnetic footSmart tool7th axisPendantPL/EN pluginConfigurationTrainingSupport
WS kit · welding cobot
WELDERSTAL
WS-3
The WELDERSTAL WS-3 is a ready-to-work cobot built on the bare Fairino FR3 cobot arm (3 kg payload, 622 mm reach, ±0.02 mm repeatability, 6 axes). It is the smallest base in the family - for small parts, tight cells and light tools. The WS model adds the working tool, equipment, Welderstal plugins, configuration, commissioning, training and support.
See what a welding cobot as a ready-made WS cell consists of.
3 kg
Payload
622 mm
Reach
IWE
The WELDERSTAL engineering team
Certified International Welding Engineers
The WELDERSTAL WS-3 is a ready-to-work cobot built on the bare Fairino FR3 cobot arm. The FR3 arm on its own is a technical base with 3 kg payload, 622 mm reach, ±0.02 mm repeatability and 6 axes. It is the smallest base in the family - for small parts, tight cells and light tools.
The bare FR3 arm vs the WS-3 cobot
An arm on its own cannot do the job without a tool, equipment and configuration. The WS model adds: the working tool (torch, gripper or holder), cell equipment, Welderstal plugins that simplify operation, 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, tool, fixturing, cycle time, space at the cell and safety requirements. Start with a process description. See also ready-made cobot kits, all WS cobots, welding cobots and the larger models: WS-5 and WS-10.
What you buy
What the WELDERSTAL WS-3 kit includes
You are not buying just the Fairino FR3 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 cobot is built on the Fairino FR3 arm - 3 kg payload, 622 mm reach.
See the Fairino FR3 arm 01 
Fairino FR3 cobot arm
3 kg payload, 622 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 for
The most common tasks this cobot handles well. We confirm the final scope after a process analysis.
Tight cells and light tools
A small base and wall or ceiling mounting let you integrate the cobot where space is short, without rebuilding the cell.
Process trials and operator training
A good base for first automation trials, hand-guided programming and operator training before a larger deployment.
Welderstal plugins
The WELDERSTAL WS-3 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
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 technical data
Parameters of the base Fairino FR3 arm. You will find the full datasheet of all FR models on the Fairino arms page.
6
Number of axes
3 kg
Payload
622 mm
Reach
IP54 (IP65 option)
Protection rating
approx. 13 kg
Own weight
Full technical specification
| Number of axes | 6 |
| Maximum payload | 3 kg |
| Reach | 622 mm |
| Repeatability | ±0.02 mm |
| Own weight | approx. 13 kg |
| J1 range of motion | ±175° |
| J2 range of motion | +85° / −265° |
| J3 range of motion | ±150° |
| J4 range of motion | +85° / −265° |
| J5 range of motion | ±175° |
| J6 range of motion | ±175° |
| Protection rating | IP54 (IP65 option) |
| Power supply | 100–240 VAC |
| Operating temperature | 0–45 °C |
| Mounting | floor / wall / ceiling |
| Noise level | <65 dB |
One level up
Kits the WELDERSTAL WS-3 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 (IP65 option)
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 differ from the bare Fairino FR3 arm?
The FR3 is the cobot arm alone - a technical base with 3 kg payload and 622 mm reach. The WS-3 is a Welderstal cobot built on that base: the FR3 arm, tool, cell equipment, plugins, process configuration, commissioning, training and support after start-up. You can see the FR cobot arms on the Fairino models page.
What tasks is the WS-3 suitable for?
With 3 kg payload and 622 mm reach, the WS-3 works well for small parts, tight cells and light tools - MIG/MAG and TIG welding of small components, simple auxiliary operations, process trials and operator training. The final selection is made after a process analysis.
Can the WS-3 cobot work next to an operator?
The Fairino FR arm is a collaborative robot with sensors in its joints that limit force on contact. However, we do not automatically assume operation without guarding - safety is assessed for the whole cell: tool, part, speed, forces and surroundings.
How do we select and deploy the WS-3?
We start with a description of the process, part and cell. We check whether the task suits a cobot, select the tool and equipment, configure the cell with plugins, commission it, train the operators and agree the scope of support after start-up.
Next step
Send your cell for assessment - we will configure the WELDERSTAL WS-3 cobot
Describe the part, process, pace and space at the cell. On this basis we will select the model, tool, plugins and deployment scope.