The HONPINE S Series underwater collaborative robot is designed for a wide range of subsea operations, covering tasks from flexible cooperation to precision manipulation with a scalable 2+1 to 6+1 DOF architecture. Built from AL6061 hard anodized aluminum alloy, it supports up to 300 m waterproof depth while maintaining very low underwater weight of 1.9–3.3 kg and a 3 kg payload capacity for stable compact deployment. The S3 offers a balanced weight-to-performance design for installation and cutting assistance. The S5 is optimized for grasping and non-destructive testing with underwater payload exceeding its dry weight. The S7 delivers ≤0.1 mm repeatability, ROS support, and flexible mounting for high-precision control. Together, the S Series covers cooperative handling to advanced subsea manipulation. This underwater collaborative robotic system is designed for marine engineering, research, and underwater maintenance applications requiring flexibility and precision.

The HONPINE M Series underwater collaborative robot is a heavy-duty subsea system for offshore operations, featuring a 4+1 DOF design for high-load tasks such as component handling, installation, and subsea cutting. Made from AL6061 aerospace-grade aluminum with hard anodized treatment, it offers strong corrosion resistance. The system weighs 15 kg in air and 8 kg underwater, reducing ROV load, while delivering 12 kg payload, 1000 N gripping force, 1500 N cutting force, and 30 N·m wrist torque. The J5 joint provides a 0–200 mm range, and it operates at depths up to 300 m. It uses servo motors, supports position control and ROS integration, and is compatible with master-slave teleoperation for intuitive remote operation. This underwater robotic arm system is designed for high-intensity offshore applications requiring strength, precision, and flexible control.

The HONPINE L Series is a light-duty underwater robotic manipulator for subsea operations, available in L10, L20, and L40 models with 5-DOF design. It covers 10–40 kg payloads and 800–1200 mm reach options for flexible deployment. Rated for 300 m depth, it uses servo drive and supports point-to-point and trajectory control, with teach, offline, and drag programming modes. Built from lightweight materials, it weighs 24–45 kg in air and as low as 16 kg underwater (L10), reducing ROV load. It provides up to 10 N·m wrist torque and 2500 N gripping force (L40) for stable operation. With an X86 controller supporting EtherCAT and CANopen, it enables dual-robot control and open API integration for inspection, assembly, cleaning, and cutting tasks.

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