Nachi Robotics SRA100J-01

The SRA100J-01 is a six-axis articulated industrial robot from Nachi's SRA series, driven by AC servo motors and intended for spot welding and other material-handling tasks. It has a 100 kg payload, a 1,634 mm reach, and ±0.1 mm repeatability, with floor mounting and an operating temperature range of 0 to 45 °C.

Source checked23/23 values · 2026-10-25Nachi RoboticsIndustrial robot
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100 kg payloadR 1,6346-AXIS ARMREPEATABILITY ±0.1 mm05001,000mmSRA100J-01 · SIDE ELEVATIONReach envelope to scale · pose schematic
Payload
100kg
Reach
1,634mm
Repeatability
±0.1mm
Axes
6
Weight
670kg

Specification

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

Joints

NameRange min (°)Range max (°)
Axis 1-180180
Axis 2-12060
Axis 4-360360
Axis 5-135135
Axis 6-360360

Motion range per axis

arc = published range
Axis 1
-180° / 180°
Axis 2
-120° / 60°
Axis 4
720°
Axis 5
-135° / 135°
Axis 6
720°

Quick answers

What is the payload of the Nachi Robotics SRA100J-01?
100 kg, per SRA100J (nachirobotics.com).
What is the reach of the Nachi Robotics SRA100J-01?
1634 mm, per SRA100J (nachirobotics.com).
What is the repeatability of the Nachi Robotics SRA100J-01?
±0.1 mm, per SRA100J (nachirobotics.com).
How many axes does the Nachi Robotics SRA100J-01 have?
6, per SRA100J (nachirobotics.com).
How much does the Nachi Robotics SRA100J-01 weigh?
670 kg, per SRA100J (nachirobotics.com).

Study notes

  • Document refers to an FD controller with 4th-generation servo gun control software; no Nachi FD controller id is available in the reference list.
  • The SRA series is described with payloads from 100 kg to 240 kg, including floor-mount, invert-mount, and long-reach models over 3 m; these are series-level statements, not specific to SRA100J-01.
  • Axis 3 range is listed under 'Max. working envelope' as +1.57 to -2.18 rad (+90 to -125°), not under an 'Axis 3' label.
  • Repeatability conforms to JIS B 8432; noise is measured under JIS Z 873-1 (ISO 11201) at maximum payload and maximum speed.
  • Allowable static load torque: Axis 4 560 N·m, Axis 5 560 N·m, Axis 6 290 N·m.
  • Allowable moment of inertia: Axis 4 45 kg·m², Axis 5 45 kg·m², Axis 6 22.7 kg·m².
  • Application examples listed: machine tending, material handling, palletizing, spot welding, and dispensing.
  • Ambient humidity is stated as 200 to 595 kRH with no low condensation allowed; installation-face vibration limit is 0.5 G (4.9 m/s²).

Safety

  • Explosion-proof construction is not available.
  • Permitted use is not above 1,000 m altitude; above that, the permitted temperature is affected by height.
  • Installation-face vibration must not exceed 0.5 G (4.9 m/s²).
  • Measured noise is 78.1 dB(A) under maximum payload and maximum speed.
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