TOMOROBO

Ken Robotech · Rebar tying · Commercial since 2020

Last updated: 2026-05

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Summary

The TOMOROBO is a 38.5 kg battery-powered rebar tying robot that traverses horizontal rebar grids on dirt floors and slabs, activating two mounted tying tools at each detected intersection. It covers a single subtask within the concrete reinforcement job: tying rebar intersections across grids with 100 to 300 mm pitch, while rebar placement, spacer positioning, and all vertical or wall rebar work stay with the crew. The A1 model shipped in 2020 for small-diameter rebar (phi 10 to phi 16), and the A2 followed in 2021 for large diameters up to phi 32; KEN ROBOTECH reports deployments at 180+ construction sites across Japan and Singapore.

Rebar Placement and Tying

How it works on your site

Rebar Placement and Tying

The robot rides along the rebar grid and fires two tying tools at each intersection it detects, tying on both one-way and round-trip passes. Sensors adapt to pitch variances of +/- 20 mm and rebar width variances of +/- 40 mm without manual recalibration. A single switch selects one of three tying patterns: all intersections, every other, or every third. The crew still handles rebar placement, spacer coordination, vertical rebar, and manual repositioning of the 38.5 kg robot body between rows (unless the optional Slider or Operobo system is installed).

What users have experienced

80%

Labour saving

NTT West · deployment →

30 minutes per 8hr day

Time saving

Ken Robotech

30%

Performance

Ken Robotech

Robot deployment record

3 deployments on public record

Deployments on record for this robot
Project Organizations Country Detail
NTT West former HQ redevelopment demonstration NTT West Japan
Aggregate: 180+ construction sites trial Not stated Not stated
Singapore construction project (unnamed) production Not stated Singapore

Will it work on your site

Tying speed 2.7 seconds per intersection (200 mm pitch, two tying tools) Vendor-stated; ABC Platform repeats figure without independent measurement
Geographic availability Japan (180+ sites); Singapore office incorporated Feb 2023; early-stage US and EU market entry Deployment count and client list are vendor-stated; Singapore entity confirmed by Leave a Nest