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Nachi Robotics MC20

The Nachi MC20 is a six-axis articulated industrial robot. It has a 20 kg payload, a 1722 mm horizontal reach, and a position repeatability of ±0.05 mm. The arm is IP65 rated and can be mounted on the floor or ceiling.

Source checked9/9 values · 2026-10-25Nachi RoboticsIndustrial robot
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20 kg payloadR 1,7226-AXIS ARMREPEATABILITY ±0.05 mm05001,000mmMC20 · SIDE ELEVATIONReach envelope to scale · pose schematic
Payload
20kg
Reach
1,722mm
Repeatability
±0.05mm
IP rating
IP65
Axes
6

Specification

1 source
Categoryindustrial robot
Weight220 kg
Operating temp min0 °C
Operating temp max45 °C

Quick answers

What is the payload of the Nachi Robotics MC20?
20 kg, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).
What is the reach of the Nachi Robotics MC20?
1722 mm, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).
What is the repeatability of the Nachi Robotics MC20?
±0.05 mm, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).
How many axes does the Nachi Robotics MC20 have?
6, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).
How much does the Nachi Robotics MC20 weigh?
220 kg, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).
What is the IP rating of the Nachi Robotics MC20?
IP65, per MC20 | Nachi Robotics Systems, Inc. (nachirobotics.com).

Study notes

  • Robot model is listed as MC20-01 in the basic specifications table; the page title is MC20.
  • Drive system is an AC servo motor.
  • Maximum speeds for MC20-01 are listed as 2.96 rad/s on axes 1 and 2, 2.86 rad/s on axis 3, 6.28 rad/s on axes 4 and 5, and 10.5 rad/s on axis 6.
  • Allowable static load torque is 49 N·m on axes 4 and 5 and 23.5 N·m on axis 6.
  • Allowable moment of inertia is 1.6 kg·m² on axes 4 and 5 and 0.8 kg·m² on axis 6.
  • Maximum air pressure is 0.49 MPa (50 kgf/cm²).
  • Humidity range is 20 to 55%RH with no condensation allowed.
  • Vibration limit is 0.5 G (3 m/s²).
  • Installation altitude is not higher than 1,000 m above sea level; above this, permitted temperature is affected by height.
  • The basic specification table lists floor and ceiling mounting for MC20-01; additional information lists floor, wall, and inverted/ceiling mounting.
  • Application areas listed are machine tending, material handling, palletizing, and dispensing.
  • Optional internal pneumatic valves and internal air supply lines/signal cabling are mentioned.

Safety

  • Operating range is limited according to payload weight.
  • The allowable moment of inertia of the wrist changes with load conditions.
  • Maximum air pressure must not exceed 0.49 MPa (50 kgf/cm²).
  • Operating temperature is 0 to 45 °C.
  • Humidity must be 20 to 55%RH with no condensation.
  • Vibration to the insulation flow must not exceed 0.5 G (3 m/s²).
  • Do not use organic compounds, acids, alkalis, chlorine, or gasoline cutting fluids that deteriorate seal material.
  • Installation altitude is limited to 1,000 m above sea level; higher altitude affects permitted temperature.
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