IRGM Servo Joint

Industry Category
Execution Systems Integrated Joints
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Product Description

Guangzhou Keyi IRGM rotary servo joints utilise in-house developed harmonic reducers, dual absolute encoders and drivers, offering high precision and excellent stability. Available in a range of specifications, they are suitable for humanoid, collaborative, quadruped and AGV robots. Repeatability is ≤ 1 arcminute, and they support EtherCAT/485 communication and customisation.

Product Specifications

Guangzhou Keyi IRGM rotary servo joints incorporate in-house developed harmonic reducers, 18-bit dual absolute multi-turn encoders and integrated drivers. Repeatability is ≤1 arcminute, with reducer backlash of just 0.5 arcminutes. The rated voltage is 48 V DC, covering multiple series with rated torques ranging from 10 Nm to 586 Nm and peak torques of up to 841 Nm. Motor rated speed ranges from 2,500 to 3,300 rpm, supporting EtherCAT/485 communication. With central shaft wiring, rotation is ±360°; without a shaft, unlimited rotation is available. Operating temperature: –10 to 55 °C; design life: 10,000 hours. Optional brake or non-brake configuration, single or dual encoder. Customisable for reduction ratio, dimensions and interface. Ideal for humanoid, legged, collaborative, AGV and industrial robots.

Company Profile

Guangzhou Keyi Precision Machinery Equipment Co., Ltd.

Guangzhou Keyi Precision Machinery Equipment Co., Ltd. is a subsidiary of International Precision Group, which is controlled by China Bao’an Group under the Shenzhen State-owned Assets Supervision and Administration Commission. The company holds 130 authorised patents, employs over 70 engineers, and has developed more than 500 products to date. Guangzhou Keyi possesses fully independent intellectual property rights for its harmonic reducers, rotary servo joints, linear servo joints, dexterous grippers and humanoid robot bodies. Its products deliver outstanding performance, high absolute accuracy and stable repeatability, and the company offers customised functional development services. It is one of the few providers in China capable of large-scale production of humanoid robot bodies and integrated comprehensive solutions. Guangzhou Keyi possesses extensive experience and a deep understanding of manufacturing processes in the precision machining sector. Since its establishment in 2011, the company has been committed to digitally empowering the precision manufacturing industry through the application of advanced technologies such as the Internet of Things (IoT), artificial intelligence (AI) and industrial robotics. It provides industry-leading, efficient, stable and intelligent one-stop comprehensive solutions to support the transformation and upgrading of the manufacturing sector.
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