Reach Robotics Alpha 4 Underwater Manipulator

Reach RoboticsSKU: RB-Blp-14
Manufacturer #: RA-4001

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  • Reach Robotics Alpha 4 Underwater Manipulator
  • Fits on very light ROV’s
  • Self-protection against collision
  • Corrosion and scratch-resistant anodized aluminum
  • Highly modular and configurable
  • Note: Master Arm not included

The Reach Robotics Alpha 4 Underwater Manipulator is a tough and reliable multi-function electric manipulator for harsh environments. Worlds’ smallest, lightest, four-function subsea manipulator.

With high accuracy joint positioning (0.1°) and a master or slave topside controller, the Alpha 4 is the most advanced manipulator for the portable ROV community.

This impressive lightweight manipulator features interchangeable jaws, high accuracy joint positioning, and adjustable grip force. A must for operators in the new era of close inspection work and complex intervention.

Enabled for pairing with the Master Arm controller, it offers ROV operators a first step in progressing their advanced intervention capability.

  • 1x Reach Robotics Alpha 4 Underwater Manipulator

Blueprint Alpha 4 Underwater Manipulator - Click to Enlarge

  • Outer Diameter: 40 mm
  • Reach: 0.4 m
  • Max Closing Force: 600 N
  • Standard Connector: Teledyne 6 Pin IE(W)-55 Impulse Connector (whip included)
  • Operator Control Options: 3D Space Mouse, Gamepad, Software GUI, Master Controller
  • End-Effector Options: Quad Jaws, Pincer, Parallel Jaws, Rope Cutter


  • Depth Rating: 300 m
  • Field Proven


  • Intuitive Interface
  • Master Arm Controlled


  • Joint Accuracy: 0.1°
  • Kinematics and Self-Protection

Degrees of Freedom

  • J1: 90°
  • J2: 185°
  • J3: 185°
  • J4: 200°


  • Voltage 18 - 30 V
  • Wattage: 35 W Max
  • COMS: RS232/485


  • Depth: 300 MSW
  • Temp: -35°C to 35°C
  • Material: AL6061


  • Lift Capacity: 2 kg (Full Reach)
  • Push-rod axial load rating: 100 kg
  • Weight (Air): 1360 g
  • Weight (Water): 900 g

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