Image: GreenBuild

WLTR Masonry Robot

Tablet-controlled bricklayer for straight Porotherm walls up to 3.5 meters

10
Deployments: 7
Companies that ran it

How it works on your site

The WLTR is a wheeled, tethered-electric masonry robot that autonomously lays Porotherm Robot Ready bricks to construct load-bearing and partition walls up to 3.5 m high. It covers one subtask within masonry: unit placement of brick and block, using Dryfix adhesive foam or thin-bed mortar on a 125 mm modular system; all finishing, pointing, lintels, and complex geometry stay with the crew. The WLTR has been shipping since 2020, operated as a Robot-as-a-Service by green.build, a Wienerberger AG subsidiary.

Unit Placement (Brick/Block/Stone)

The WLTR picks Porotherm Robot Ready bricks from pallets positioned alongside the wall line, places them per the virtual wall model loaded on the operator's tablet, and bonds each course with Dryfix adhesive foam or thin-bed mortar. A cross-line laser maintains horizontal alignment while onboard sensors monitor wall parameters in real time. One operator controls the robot via tablet while a supporting worker manages material supply; corners, lintels, and openings remain crew work.

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Image: GreenBuild
Image: GreenBuild

Field outcomes

1 of 5

Image: GreenBuild

Two WLTR robots built 1,454 m² of masonry with STRABAG for the Aloys Klar Kindergarten in Prague in five weeks.

Aloys Klar Kindergarten Extension, Czechia

WLTR Masonry Robot
Image: GreenBuild

Two WLTR robots built 693 m² of masonry for a University of South Bohemia sports complex in two weeks.

Sports Complex Na Sadkach, Czechia

WLTR Masonry RobotUniversity of South Bohemia
Image: GreenBuild

Two WLTR Masonry Robot units built the masonry walls of a public kindergarten and nursery for over 170 children in Koronowo, Poland, together with Wienerberger, laying 600 m² in 8 days.

Kindergarten and Nursery, Poland

WLTR Masonry RobotWienerberger AG
Image: GreenBuild

Berill Hazepito Kft, with Wienerberger Magyarország, used one WLTR Masonry Robot unit to complete the masonry works for a single-family home in Budapest's 18th district in three days, the first such house in Hungary.

Single-Family Home, Hungary

WLTR Masonry RobotBerill Hazepito Kft
Image: GreenBuild

One WLTR Masonry Robot unit completed the masonry works for a single-family house in Martin nad Žitavou, Slovakia, laying 237 square metres in two weeks on the robot's first Slovak project.

Single-Family House, Slovakia

WLTR Masonry Robot

Who has run it

10 deployments · 7 companies · 5 countries

Will it work on your site

Throughput: Up to 10 m2/h200 m2/day reported across multiple deployments
Environment: Outdoor; all-weather operation reportedRequires electricity and water supply on site

As the maker states it.

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