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RHC403 Lightweight Small Industrial Robot Arm




4 axes

Working radius




Main Features

  • HNC-RHC403 industrial robot has high protection level.
  • It can work under high humidity and harsh environment with oil, acid, alkaline cutting coolant.
  • The internal components are isolated with external environment.
  • It is particularly suitable for loading and unloading electronic parts, sorting and assembly in narrow space.


  1. The small robotic arm is of high protection level – IP67, which can be used in high humidity, oil, cutting fluid environment.
  2. High-performance servo control system, the whole machine has high precision and reliability, low failure rate.
  3. The core components such as the robot control system are independently developed by HuazhongCNC, which can be customized and integrated into various automation solutions.
  4. The small design of the robot arm occupies minimized space compared with the conventional scara robot, which can work in narrow space.
  5. High repeated precision up to ±0.02mm, can be matched with vision system.
  6. It is a lightweight robotic arm with portable size, easy for installation.


Industrial robot RHC403
Degree of freedom 4
Payload 3Kg
Maximum working radius 585mm
Repeated precision ±0.02mm
Range of motion J1 ±140°
J2 ±180°
J3 0-145mm
J4 ±360°
Rated speed J1 225°/s, 3.95rad/s
J2 225°/s, 3.95rad/s
J3 500mm/s
J4 360°/s, 6.28rad/s
Maximum speed J1 374°/s, 6.54rad/s
J2 375°/s, 6.54rad/s
J3 1000mm/s
J4 588°/s, 10.26rad/s
Allowable moment of inertia J4 0.03kg㎡
Allowable torque J4 6.4N·m
Applicable environment Temperature 0 ~ 45°
Humidity 20% ~ 80%
Others Avoid contact with flammable, explosive or   corrosive gases and liquids. Keep away from electronic noise sources (plasma)
Cable length of teach pendent 8metre
Body-cabinet connection length 5metre
I/O parameter Digital:32 inputs, 31 outputs (one for control cabinet fault indicator output)
Battery capacity 0.6kVA
Rated power 0.5KW
Rated voltage Single phase AC220V, 50HZ
Rated current 2.5A
Protection level IP64 (IP67 optional)
Installation method Ground installation, side installation, upside down installation
Body weight 25kg
Control cabinet protection level IP53
Control cabinet size 620(wide)×260(thick)×475(high) – vertical
Control cabinet weight 38Kg

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