Mule ML150
Construction Robotics (CR) · Masonry · Shipping since 2020
Last updated: 2026-05
Summary
The MULE ML150 is a mast-mounted, wire rope lift-assist arm that makes masonry units up to 150 lbs feel weightless for a single mason. It handles CMU, veneer, and cast stone placement across ground base, scaffolding, and mast-climbing work platform configurations; mortar application, cutting, and layout stay with the crew. The ML150 has been shipping since 2020, with 8 confirmed deployments across healthcare, warehouse, cultural, and military projects in the United States.
How it works on your site
Unit Placement (Brick/Block/Stone)
The operator grips the block with pneumatic grippers and the system continuously adjusts wire rope tension to counterbalance the load weight, making units up to 150 lbs feel weightless in float mode. One mason places blocks that previously required a two-person lift, including oversized 32-inch CMU that covers twice the wall area of a standard 16-inch block. After placement, the arm auto-retracts and performs small autonomous repositioning movements.
How it worked on other sites
Berich Masonry at Northfield Medical Office Building
Healthcare · Denver, CO · 7,100 sq ft block coverage
- 7,100 sq ft of block placed in stair towers and elevator shafts, 60% oversized 32-inch CMU.
- Single-mason placement of 8x8x32 blocks using MULE Method design change.
Atlas Masonry at Deer Valley Storage
Storage/Warehouse · Phoenix, AZ · 36,100 sq ft
- 36,100 sq ft covered with 30,000+ 32-inch CMU blocks, 6 MULEs operating (4 on scaffolding, 2 ground).
- Ground and elevated placement via Hydro Mobile mast-climbing work platforms.
Bratton Masonry at Patricia Reser Center for the Arts
Bratton MasonryCultural · Beaverton, OR · 48,500 sq ft facility
- 8-inch and 12-inch normal weight CMU placed with COVID-19 compliant single-mason operation.
- Started with 6 MULEs and expanded to 9 during the project.
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