
All-Round Parameters of Explosion-Proof Joints
Fully Self-Developed, Performance Rivals High-End Imported Models
Joy-Motion's explosion-proof joints cover three main categories: knee joints, pitch joints, and roll joints. All share the following unified high-performance specifications:
Explosion-Proof Rating: Compliant with Ex d IIB T4 and Ex d IIC T6 standards for various working conditions. Offers extremely high safety, suitable for multiple explosion-proof scenarios like oil and chemical industries and various complex ground environments, demonstrating strong adaptability.
Torque Performance: Peak torque reaches 450 N·m, rated torque 110 N·m, enabling robots to carry over 20kg for sustained operation.
Control Precision: Equipped with a 17-bit dual encoder. Repeat positioning accuracy is ±40 arcseconds, backlash ≤15 arcminutes, with millisecond-level response speed.
System Integration: Built-in driver, supports CAN/CAN-FD communication. Rated power approx. 1.28 kW, powered by 72VDC, compatible with mainstream robot control systems.
Protection Performance: Protection rating IP67, operational temperature range -20°C to 60°C, noise level below 70 dB.
Full-Stack In-House R&D
Unmatched Domestic Capability in Explosion-Proof Joint Design
Unlike the industry's common practice of "purchasing motors + secondary explosion-proof modification," Joy-Motion possesses full-stack R&D capabilities spanning from explosion-proof servo motors and joint modules to whole-machine adaptation. The company boasts leading domestic experience in integrated explosion-proof structural design and certification, offering holistic explosion-proof solutions that combine motor, drive, and sensing. This has already helped multiple robotics companies shorten their whole-machine certification cycles.

Beyond Delivery
Understanding Scenarios and Pain Points, Partnering with Clients Throughout
The Joy-Motion team has years of experience in explosion-proof system integration and on-site service, with a deep understanding of safety regulations and operational workflows in industries like chemicals and energy. Post-delivery, the team provides:
Scenario-Specific Adaptation Support: Customizes structure and control parameters based on different robot configurations and mission requirements.
Explosion-Proof Certification Collaboration: Assists clients in completing whole-machine explosion-proof certification, avoiding common design pitfalls.
Rapid Response Service: Maintains technical support networks in multiple industrial zones across the country, offering 48-hour on-site response.
Currently, quadruped robots equipped with Joy-Motion explosion-proof joints are conducting routine inspection tasks in several national-level chemical industrial parks. Joy-Motion will continue to iterate joint technology, enabling more special-purpose robots to enter high-risk scenarios "where humans cannot approach or act," contributing to the safety upgrade of China's intelligent equipment.