Rebar Tying Robots
Robots that walk rebar mats on bridge decks and slabs, tying intersections automatically.
13 robots · 14 companies · from the Future of Built file
By trade
- Rebar · 10
- Drilling · 1
- Aerial · 1
- Welding · 1
Robots
Advanced Construction Robotics
LimX Dynamics
CSC Robotics
Taisei
GMT 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.
- Skydio · San Mateo, United States · founded 2014
AI obstacle-avoiding drones for site capture, progress, and inspection through the clutter that makes construction unflyable for most UAVs.
- CSC Robotics · Hong Kong, Hong Kong · founded 2019
Autonomous ceiling and wall drilling from BIM. Hangers and sleeves on Asian high-rises without a week of layout.
- Progress Group · Brixen, Italy · founded 1961
Precast automation - carousel plants, mesh welders, the Italian line that pours the panel.
- 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.
- 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.
- 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.
Frequently asked questions
- What does a rebar tying robot do?
- It travels across a rebar mat and ties intersections, taking one of the most repetitive, back-breaking tasks off ironworkers.
- Which companies are on the rebar tying robots list?
- Future of Built lists 14 companies here, including Advanced Construction Robotics, Toggle Robotics, Skydio, CSC Robotics, Progress Group, LimX Dynamics, Taisei and KEN ROBOTECH.
- Where are these companies headquartered?
- By headquarters: United States (4), Japan (3), China (2), Denmark (1), Hong Kong (1).
- How many of these robots are deployed?
- Of the 13 robots on this page, 10 deployed, 3 pilot, per the Future of Built file.