Ti5 ROBOT CRA-RI70-80-PRO Motor Joint Module (51/81/101/121), 500W, 24-48V, 16Bit Encoder
Ti5 ROBOT CRA-RI70-80-PRO Motor Joint Module (51/81/101/121), 500W, 24-48V, 16Bit Encoder
Ti5 ROBOT
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Overview
The Ti5 ROBOT CRA-RI70-80-PRO Motor is a lightweight joint module motor designed for robot joint actuation. Manufacturer-stated highlights include lightweight design, small size, powerful performance, and a modular structure with integrated modules for different scenarios.
Key Features
- Lightweight: Ultra-lightweight design; manufacturer notes weight reduction by more than 1/3 and reduced operating energy consumption.
- Stronger performance: Manufacturer notes industrial-grade performance standards and states torque density is twice that of similar products.
- Modularization: Manufacturer states six modules are integrated organically, and three series adapt to different scenarios; intended to reduce production difficulty and improve production efficiency.
- Module composition (labeled): Motor back cover, control board, encoder, stator housing, motor rotor, motor stator, harmonic reducers, flexspline cover.
- Torque density comparison (manufacturer chart): “Comparison of torque density of mainstream joint products (Nm/kg)” shows 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).
- Mass production/toolchain statements (manufacturer text): “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.”
Technical Specifications
| Parameter | Value |
|---|---|
| Motor Model | CRA-RI70-80-PRO-XX / CRA-RI70-80-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 ±0.5 mm / 91.5 ±0.5 mm |
| Weight: Without brake / With brake | 0.9 kg / 1.11 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
For product selection, documentation help, or order support, contact support@rcdrone.top or visit https://rcdrone.top/.
Details
The CRA-RI70-80-PRO series is a compact, lightweight joint module platform for robot joint actuation across multiple build sizes.
A modular structure combines key drive and sensing components in a single joint module to simplify integration and maintenance.
An integrated motor-and-reducer architecture supports clean routing and compact packaging in robotic joints.
Major assemblies include the control board, encoder, motor stator/rotor, and harmonic reducer with protective covers.
Manufacturer-provided torque density comparison positions Ti5 Robot joint modules against other mainstream joint products.
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