Robots for Ironworkers
Robots that tie rebar and handle steel alongside ironworkers.
21 robots · 23 companies · from the Future of Built file
By trade
- Welding · 11
- Rebar · 10
Robots
Advanced Construction Robotics
MX3D
Inrotech
Novarc
LimX Dynamics
Taisei
Castor Robotics
Companies
- Advanced Construction Robotics · Pittsburgh, United States · founded 2013
TyBot ties rebar and IronBot places it. Built for bridge decks and heavy civil - the work crews least want to do by hand.
- Toggle Robotics · New York, United States · founded 2018
Industrial robots pre-assemble rebar cages offsite for transit, bridges, and energy - then deliver them to the deck.
- MX3D · Amsterdam, Netherlands · founded 2014
Multi-axis robotic metal printing. The stainless steel canal bridge in Amsterdam was the proof. Wire-arc additive manufacturing for structure.
- Inrotech · Odense, Denmark · founded 2000
Adaptive welding robots for heavy steel - ships, modules, and the prefab that construction borrows from yards.
- Novarc · Vancouver, Canada · founded 2013
Spool Welding Robot. Pipe shops and modules - the weld that still sets the fab schedule.
- Path Robotics · Columbus, United States · founded 2014
Autonomous welding cells that see the joint and weld it. No teach-every-pass. Ohio steel.
- Lincoln Electric · Cleveland, United States · founded 1895
The weld OEM that now ships robotic cells into fab shops feeding construction steel.
- JLG · McConnellsburg, United States · founded 1969
Boom lifts - and now Canvas. The access OEM that bought the drywall robot.
- Progress Group · Brixen, Italy · founded 1961
Precast automation - carousel plants, mesh welders, the Italian line that pours the panel.
- Persona AI · Houston, United States · founded 2024
Industrial humanoids for shipyards, fab shops, and construction. NASA and IHMC DNA. HD Hyundai is the first yard. The weld is the job - not a laundry demo.
- LimX Dynamics · Shenzhen, China · founded 2022
Nanshan humanoids on live decks. TRON 2 is the modular dual-arm platform ZINOVA put on formwork and rebar - a general-purpose torso doing trade work, not a kung-fu demo.
- Taisei · Tokyo, Japan · founded 1873
Shinjuku GC. T-iROBO ties rebar and finishes slabs so the crew is not on their knees for the whole deck. Super-five Japanese contractor, robots that already work nights.
- Schindler · Ebikon, Switzerland · founded 1874
R.I.S.E. - an ABB arm in the hoistway that hangs rails so the elevator crew is not on a false car for weeks. Swiss lift OEM, shaft work.
- KEN ROBOTECH · Miki, Japan · founded 2013
TomoRobo crawls the mat and ties with MAX guns you already own. Kagawa shop. Daiwa House, Tokyu, Sumitomo Mitsui - the tie that used to wreck wrists.
- Fujita · Tokyo, Japan · founded 1910
Shibuya GC. SWAN welds square-tube columns on the deck with Daihen arms - Daiwa House on the joint development. The pass a welder used to sit in the heat to run.
- Arn Autonomy · San Francisco, United States · founded 2024
GRID ties rebar on commercial decks so wrists stay off the mat. San Francisco. Rebrand from Spacer Robotics - same yard, same tying job.
- Castor Robotics · Hong Kong, Hong Kong SAR · founded 2024
RBTS1 ties flat-mat rebar so ironworkers stay off their knees on the deck. Hong Kong Science Park spin under HKCRC. Eighty-plus commercial sites claimed across HK, mainland, and the Middle East.
- GMT Robotics · Brondby, Denmark · founded 2018
Mega WeldMate and WeldMate weld rebar mesh and cages adaptively. Brondby. Tunnel-segment welding demos - fab-first but construction steel.
- MAX Co., Ltd. · Tokyo, Japan · founded 1942
Autonomous mobile rebar-tying unit from the TWINTIER lineage. Tokyo. World of Concrete 2025 debut - the tool brand ironworkers already know, now rolling the mat.
- Comax Intelligent Technology · Shijiazhuang, China · founded 2020
Vision-guided autonomous flat-mat rebar tying robot. Shijiazhuang, Hebei. Live product page, legal entity on the site.
- MESH · Zurich, Switzerland · founded 2022
ETH Zurich spin-off for robotic rebar - ACTUATE machine tending, NODE tying/welding cells, ASSEMBLE cage lines. Birr production hall. The ironworker pile that used to wait on a shop floor.
- MLROBOT · Hangzhou, China · founded 2019
ML1 is an all-terrain magnetic crawler welding robot (Meng Robot / MLROBOT) for tanks, steel structures, ships, and containers - China. Trackless mobility with laser seam tracking for multipass field welds.
- Sanctuary AI · Vancouver, Canada · founded 2018
Phoenix-class humanoids for industrial tasks including welding demos - Vancouver. Carbon-copy work that still needs dexterous hands on the torch or the plug.
Frequently asked questions
- Which robots help ironworkers?
- Rebar tying and placing robots, plus steel welding and handling systems.
- Which companies are on the robots for ironworkers list?
- Future of Built lists 23 companies here, including Advanced Construction Robotics, Toggle Robotics, MX3D, Inrotech, Novarc, Path Robotics, Lincoln Electric and JLG.
- Where are these companies headquartered?
- By headquarters: United States (7), Japan (4), China (3), Canada (2), Denmark (2).
- How many of these robots are deployed?
- Of the 21 robots on this page, 14 deployed, 6 pilot, 1 production, per the Future of Built file.