Fixed-base humanoids
A humanoid torso, arms and head bolted to a bench, stand or cart — all of the manipulation and interaction, none of the locomotion.
- torso humanoid
- half humanoid
- dual-arm humanoid torso
No products in this category yet.
What it is
A fixed-base humanoid is the upper half of a humanoid with no way to move itself: a torso, two arms and a head on a fixed mount. It gives up mobility and in return drops the hardest, most expensive and most dangerous parts of the design. Nothing to balance, no battery to drain, no fall to recover from, and the arms can be heavier because the mount carries them. For a lab studying hands, bimanual manipulation or human-robot interaction, that is often enough.
Also called a torso humanoid, half humanoid or humanoid upper body. In this taxonomy it sits
under Humanoid beside bipedal and wheeled-base humanoids; the test is the humanoid torso, arms
and head with no locomotion system. Two arms on a stand without a head are an arm with
arm_count: 2; an armless desktop companion is a Stationary robot.
What they are used for
- Bimanual manipulation research — two coordinated arms and hands on a bench, collecting demonstrations and testing learned policies.
- Human-robot interaction studies — a face, head and gestures at table height for social research.
- Assembly and kitting cells — a two-armed, human-shaped worker at a fixed station beside people.
- Exhibitions and reception desks — an upper body that talks and gestures from behind a counter.
What to compare
| Attribute | Why it matters | In this catalogue |
|---|---|---|
dof_total |
Arms, hands, waist and head; no leg joints to count | not yet in the catalogue |
hands_included |
The main reason to buy one; check whether dexterous hands are in the box | not yet in the catalogue |
payload |
Per arm; often higher than a walking humanoid of the same size | not yet in the catalogue |
mass |
Bench or floor mount; mounting hardware is often extra | not yet in the catalogue |
sdk |
Research torsos usually expose joint control and simulator models | not yet in the catalogue |
collaborative |
Fixed arms beside people need the same safety rating as a cobot | no entries yet |
In the catalogue
No products yet — this is where humanoid upper-body research platforms and dual-arm torsos with heads sold without a base would go.
Edge cases
- A humanoid torso sold without its wheeled base: here; the base is a separate entry linked by
compatible_with. - Two cobot arms on one stand, no head: an arm with
arm_count: 2. - An armless desktop or social robot: a Stationary robot.
- A torso on a cart you push: still fixed-base; no locomotion of its own.
Related
Humanoid · Bipedal humanoid · Wheeled-base humanoid · Articulated arm · Stationary robot
Rule of membership
Humanoid torso, arms and head with no locomotion system.
Category rb-2-3 in the whatrobot taxonomy.