Overview
Ti5 ROBOT CRA-RI70-90-PRO Motor is a lightweight joint module motor designed for robot joint actuation. Visible product highlights include: “LIGHTWEIGHT JOINT MODULE”, “Small size, powerful performance”, and “High Torque Density”.
Additional visible statements: “Industry-leading mass production advantage.” “All of the underlying hardware can be controlled, and the localization rate can reach 100%.” “Owns a complete software toolchain for robot development, helping to accelerate research and development.” “A comprehensive ‘Ti5 Robot Rapid Development Platform’ that combines hardware and software, with an open source SDK in the future, greatly reducing the thresholds of development and secondary development.”
Key Features
- Lightweight: “Ultra-lightweight with stronger usability.” “Reduce weight by more than 1/3.” “Greatly reduce operating energy consumption.”
- Performance positioning: “Industrial-grade performance standards.” “Torque density is twice that of similar products.” (Marketing claim shown.)
- Modularization: “Six modules are integrated organically.” “Three series comprehensively adapt to customers in different scenarios.” “Greatly reduce producing difficulty, improve production efficiency.”
- Exploded-structure labels shown: Motor back cover; Control board; Encoder; Stator housing; Motor rotor; Motor stator; Harmonic reducers; Flexspline cover.
- Torque density comparison chart text shown (Nm/kg): 250+ (Ti5 Robot Next Generation); 254 (An American brand); 192 (Ti5 Robot mass production model); 80.4 (A Chinese brand); 53.5 (A Canadian brand); 33.8 (A Korean brand).
Specifications
| Parameter | Value |
|---|---|
| Motor Model | CRA-RI70-90-PRO-XX/CRA-RI70-90-PRO-XX-B |
| Reduction Ratio | 51/81/101/121 |
| Start-stop Peak Torque | 69/91/102/108 N.m |
| Maximum Allowable Average Load Torque | 42/58/61/61 N.m |
| 2000 Rpm/(Reduction Ratio) Rated Torque at this speed | 32/42/50/50 N·m |
| Output End Peak Rotational Speed | 77/48/40/30 RPM |
| Rated Speed | 61/38/30/25 RPM |
| Motor Power | 500 W |
| Supply Voltage | 24-48 V |
| Maximum Continuous Current | 8.4 A |
| Rated Current | 6.1 A |
| Encoder Resolution | 16 Bit |
| Back Clearance | 20/20/10/10/10 arcsec |
| Torque Constant | 0.118 N·m/A |
| Hole | 18 mm |
| Length: Without brake / With brake | 73.5±0.5 mm / 92±0.5 mm |
| Weight: Without brake / With brake | 1.27 kg / 1.5 kg |
| Inertia: Without brake / With brake | 596.4 g·cm² / 746.7 g·cm² |
Applications
- Humanoid Robots
- Robotic Arms
- Exoskeletons
- Quadruped Robots
- AGV Vehicles
- ARU Robots
Manuals
Details
The Ti5 ROBOT CRA-RI70-90-PRO Motor is built as a lightweight joint module for compact robot joint actuation.
A modular joint actuator design helps balance low weight with industrial-grade performance for robotic joints.
Manufacturing scale and a complete software toolchain support faster robot R&D and secondary development.
Key internal components integrate motor, encoder, control board, and harmonic reducers into one joint module.
