Nachi Robotics SRA166H-01

The Nachi SRA166H-01 is a six-axis articulated industrial robot with a 166 kg wrist payload and 2,654 mm reach. It is floor-mounted and uses an AC servo drive system, intended for spot welding, machine tending, material handling, and palletizing. It is paired with a Nachi FD controller for motion and servo-gun control.

Source checked32/32 values · 2026-10-25Nachi RoboticsIndustrial robot
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166 kg payloadR 2,6546-AXIS ARMREPEATABILITY ±0.15 mm01,0002,000mmSRA166H-01 · SIDE ELEVATIONReach envelope to scale · pose schematic
Payload
166kg
Reach
2,654mm
Repeatability
±0.15mm
Axes
6
Weight
1,100kg

Specification

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

Joints

NameRange min (°)Range max (°)Max speed (°/s)
J1-180180115
J2-8060105
J3-146.5150115
J4-210210175
J5-125125171
J6-210210280

Motion range per axis

arc = published range
J1
-180° / 180°115°/s
J2
-80° / 60°105°/s
J3
-146.5° / 150°115°/s
J4
420°175°/s
J5
-125° / 125°171°/s
J6
420°280°/s

Quick answers

What is the payload of the Nachi Robotics SRA166H-01?
166 kg, per SRA166H (nachirobotics.com).
What is the reach of the Nachi Robotics SRA166H-01?
2654 mm, per SRA166H (nachirobotics.com).
What is the repeatability of the Nachi Robotics SRA166H-01?
±0.15 mm, per SRA166H (nachirobotics.com).
How many axes does the Nachi Robotics SRA166H-01 have?
6, per SRA166H (nachirobotics.com).
How much does the Nachi Robotics SRA166H-01 weigh?
1100 kg, per SRA166H (nachirobotics.com).

Study notes

  • Six-axis articulated robot with AC servo drive and floor mounting.
  • Uses a Nachi FD controller with 4th-generation servo gun control software for spot welding.
  • Hollow-arm design routes welding cables and hoses internally to improve cable reliability and reduce interference with peripheral equipment.
  • For SRA166H-01, allowable static wrist load torque is 960 N·m at J4 and J5, and 520 N·m at J6.
  • For SRA166H-01, allowable wrist moment of inertia is 100 kg·m² at J4 and J5, and 50 kg·m² at J6.
  • Position repeatability conforms to JIS B 8432; noise is measured per JIS Z 8737-1 (ISO 11201).
  • Applications listed are machine tending, material handling, palletizing, and spot welding.

Safety

  • Operating ambient conditions: 0–45 °C, 20–85% RH without condensation, and vibration not more than 0.5G (4.9 m/s²).
  • Permitted height is not higher than 1,000 m above sea level; above that, permitted temperature is affected by height.
  • A-weighted equivalent sound level is 79.6 dB while operating at maximum speed with rated load.
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