Open arm-HT vs PreciseFlex 400
High Torque Technology vs Brooks Automation — specs, price, and data-backed comparison.
QUICK TAKE
- Open arm-HT offers the higher payload (5 kg vs 0.5 kg).
- Open arm-HT offers the longer reach (689 mm vs 656 mm).
- Open arm-HT offers the more degrees of freedom (7 vs 4).
- Open arm-HT offers the lighter build (6 kg vs 20 kg).
SPECIFICATIONS COMPARED
| Open arm-HT | PreciseFlex 400 | |
|---|---|---|
| Company | High Torque Technology | Brooks Automation |
| Category | Collaborative-Robot | Collaborative-Robot |
| Price: | Not announced | Not announced |
| Weight | 6 kg | 20 kg |
| Payload | 5 kg | 0.5 kg |
| Reach | 689 mm | 656 mm |
| Degrees of Freedom | 7 | 4 |
| Speed | 12.96 km/h | — |
| Connectivity | CAN FD | 100 Mb Ethernet; Modbus/TCP; RS232; 8 DI / 8 DO |
| Software / AI | Official openarm_HT Python SDK: left-arm, right-arm and synchronised dual-arm control; position, velocity, torque, position-velocity and MIT five-parameter control modes; Pinocchio forward kinematics, inverse kinematics and Jacobians; gravity, friction, Coriolis, mass-matrix and full dynamics compensation; quintic and septic polynomial interpolation with Cartesian trajectories; QP inverse kinematics under joint position, velocity and acceleration constraints; single- and dual-arm trajectory recording, history selection and MIT playback; keyboard Cartesian control and Meta Quest VR DLS/QP teleoperation; YAML joint-limit and URDF configuration. | Guidance Development Studio; GPL; TCS API; GP Flow |
FREQUENTLY ASKED QUESTIONS
What is the difference between the Open arm-HT and the PreciseFlex 400?
Open arm-HT is made by High Torque Technology, while PreciseFlex 400 is made by Brooks Automation. Both are collaborative-robots, so the differences come down to price and specifications.
Which has the higher payload, the Open arm-HT or the PreciseFlex 400?
The Open arm-HT has the higher payload at 5 kg, compared to 0.5 kg for the PreciseFlex 400.


