Ti5 Robotics 60-70 Lightweight Joint Module

Ti5 Robotics 60-70 Lightweight Joint Module is a modular, integrated rotary actuator family developed for humanoid robots, collaborative arms, and other intelligent equipment. The 60-70 designation covers four documented joint versions built on a shared drivetrain, offered with four gear ratios and a choice of CAN or combined CAN/EtherCAT communication. This page presents the published parameters for each version, explains how the variants differ, and outlines the selection considerations that matter when specifying the module for a new robot joint.

Background

The Ti5 Robotics lightweight joint module line

Ti5 Robotics develops joint actuator modules intended to be integration-ready building blocks for robot designers. The manufacturer positions the lightweight joint module series around three design priorities: modularity, integration, and low mass. According to the source documentation, the modular construction supports flexible assembly and straightforward maintenance, the lightweight structure improves mobility and energy efficiency at the system level, and the highly integrated internal layout is intended to optimize space utilization and performance output. The joint modules sit alongside the company's other product families, which include intelligent bionic hands, collaborative robot arms, and humanoid robot actuators; the 60-70 module itself is a complete joint actuator, not a bare motor, despite appearing in a catalog that also lists actuator components.

Design approach of the 60-70 module

The 60-70 module combines the motor, gearing, and feedback encoder in a single compact housing with an 18 mm hollow shaft, which allows cabling to be routed through the joint axis rather than around it. All documented versions share the same electrical platform: 300 W rated power, a 24–48 V supply range, 6.7 A maximum continuous current, 5 A rated current, and a torque constant of 0.096 N·m/A. Version suffixes in the model code (for example, the B and 2E-EC designators) correspond to documented differences in housing length, mass, rotor inertia, encoder resolution, and communication bus, which are preserved in the table below.

Technical Specifications

The following tables preserve the published configuration distinctions. Blank, malformed, or ambiguous source values are not confirmation of a capability; confirm the selected configuration during quotation.

CRA-RI60-70-PRO-2-XXX

CRA-RI60-70-PRO-2-XXX-B

CRA-RI60-70-PRO-2-XXX-2E-EC

Which gear ratio of the 60-70 joint module should you choose?

The four ratios trade output speed against torque and precision. The 51:1 ratio is the fastest option, reaching an 82 RPM peak with 42 N·m peak torque, suited to joints where motion speed dominates. The 81:1 ratio is the balanced middle choice. The 101:1 and 121:1 ratios both deliver the family's highest published peak torque of 66 N·m and tighten gear backlash to 10 arcsec, with the 121:1 trading further speed for higher reduction. Because these figures span 42–66 N·m peak torque and 32–82 RPM peak speed, the correct selection depends on the joint position in the kinematic chain and the load it must carry.

Who is the Ti5 Robotics 60-70 Lightweight Joint Module for?

This module is intended for robotics engineers, OEM integrators, research laboratories, and product development teams building articulated machines. It suits humanoid robot developers who need compact, hollow-shaft joints; collaborative arm builders standardizing on a modular actuator family; and academic or R&D groups prototyping legged or articulated platforms that require documented torque, speed, and backlash figures at the joint level.

What is the Ti5 Robotics 60-70 Lightweight Joint Module used for?

1. Joint actuation in humanoid robots, where the lightweight, integrated housing supports dense packaging across many degrees of freedom.
2. Collaborative robot arm construction, with the four gear ratios allowing different ratios at shoulder, elbow, and wrist positions.
3. Scientific research and education platforms that benefit from a modular, maintainable actuator with published parameters.
4. Medical and rehabilitation robotics development, a manufacturer-listed application area for the joint module line.
5. Industrial production automation projects requiring a compact rotary joint with CAN or EtherCAT connectivity.
6. Commercial-scenario robots, such as service platforms, where energy efficiency and low moving mass influence runtime.

Pricing and Availability

Pricing for the Ti5 Robotics 60-70 Lightweight Joint Module is provided on a quotation basis and varies with the version, gear ratio, and order quantity selected. All four documented versions and the four gear ratios are ordered through the same model family. To receive current pricing, lead time, and configuration guidance, submit a quote request through this listing with your required version and ratio.

Frequently Asked Questions

What is the Ti5 Robotics 60-70 Lightweight Joint Module?

It is an integrated rotary joint actuator family combining motor, gearing, and a 16-bit (or 16/18-bit) encoder in one lightweight, hollow-shaft housing, designed for humanoid and collaborative robots.

How many versions and gear ratios are available?

The manufacturer lists four versions. Three have full published specifications; the fourth is named without parameter values. Each documented version is available with 51, 81, 101, or 121 gear ratios.

What communication interfaces does the module support?

The base CRA-RI60-70-PRO-2-XXX and the B version communicate over CAN. The 2E-EC version supports CAN/EtherCAT with 16/18-bit encoder resolution.

How much torque does the 60-70 module deliver?

Peak torque ranges from 42 N·m at the 51:1 ratio to 66 N·m at the 101:1 and 121:1 ratios, with rated torque at 2000 RPM spanning 19.8–30 N·m depending on ratio.

What are the dimensions and mass of the module?

Documented versions range from 72.5 ±0.5 mm to 93 ±0.5 mm in length and from 0.73 kg to 0.88 kg in mass, with rotor inertia between 394.8 and 492 g·cm².

Does the module have a hollow shaft?

Yes. All documented versions include an 18 mm hollow shaft for routing cables through the joint axis.

Where can I buy the Ti5 Robotics 60-70 Lightweight Joint Module and what does it cost?

You can purchase it through this listing. Because cost depends on the version, gear ratio, and quantity, pricing is supplied by quotation — request a quote on this page for current figures.

Summary

The Ti5 Robotics 60-70 Lightweight Joint Module is a documented, four-version actuator family offering 42–66 N·m peak torque, 32–82 RPM peak speed, 10–20 arcsec backlash, CAN or CAN/EtherCAT control, and sub-kilogram mass in every published configuration. For engineers comparing versions, selecting gear ratios, or requesting a formal quotation, this page is the starting point.