Overview
Ti5 ROBOT CRA-RI30-40-PRO is a lightweight joint module motor designed for robotics joint actuation. Visible product highlights include: “Lightweight joint module”, “Core hardware breakthrough key”, “Lightweight: small size, powerful performance”, and “High Torque Density (key indicators of performance and lightweight features)”.
For configuration guidance and technical support, contact https://rcdrone.top/ or email support@rcdrone.top.
Key Features
Lightweight
- Ultra-lightweight with stronger usability.
- Reduce weight by more than 1/3.
- Greatly reduce operating energy consumption.
Stronger performance
- Industrial-grade performance standards.
- Torque density is twice that of similar products.
- Automotive-grade, anti-static, anti-vibration.
Modularization
- Six modules are integrated organically.
- Three series can comprehensively adapt to customers in different scenarios.
- Greatly reduce production difficulty; improve production efficiency.
Internal module composition (labeled)
- Motor back cover
- Control board
- Encoder
- Stator housing
- Motor rotor
- Motor stator
- Harmonic reducers
- Flexspline cover
Torque density comparison (Nm/kg)
“Comparison of torque density of mainstream joint products (Nm/kg)” values shown:
- Ti5 Robot Next Generation: 250+
- An American brand: 254
- Ti5 Robot mass production model: 192
- A Chinese brand: 80.4
- A Canadian brand: 53.5
- A Korean brand: 33.8
Mass production and development statements (as shown)
- 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.
Applications
- Humanoid Robots
- Robotic Arms
- Exoskeletons
- Quadruped Robots
- AGV Vehicles
- ARU Robots
Specifications
| Parameter | Value |
|---|---|
| Motor Model | CRA-RI30-40-PRO-XX / CRA-RI30-40-PRO-XX-B |
| Reduction Ratio | 51 / 101 |
| Start-stop Peak Torque | 3.3 / 4.8 N.m |
| Maximum Allowable Average Load Torque | 2.3 / 3.3 N.m |
| 2000 Rpm/(Reduction Ratio) Rated Torque at this speed | 1.8 / 2.4 N·m |
| Output End Peak Rotational Speed | 118 / 59 RPM |
| Rated Speed | 90 / 45 RPM |
| Motor Power | 36 W |
| Supply Voltage | 24-48 V |
| Maximum Continuous Current | 2 A |
| Rated Current | 1 A |
| Encoder Resolution | 16 Bit |
| Back Clearance | 40 / 40 arcsec |
| Torque Constant | 0.024 N·m/A |
| Hole | 6 mm |
| Length: Without brake / With brake | 60±0.5 mm / 78.6±0.5 mm |
| Weight: Without brake / With brake | 0.19 kg / 0.27 kg |
| Inertia: Without brake / With brake | 27.4 g·cm² / 45.1 g·cm² |
Manuals
Details

Built for compact robotic joints, the CRA-RI30-40-PRO series targets high performance in a lightweight form factor.

An integrated modular architecture combines multiple functional sections into one joint-ready module to simplify builds.

A tightly integrated internal layout supports production-ready deployment and a complete robot development toolchain.


Torque density is emphasized as a key indicator of lightweight performance for joint modules.
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