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FANUC SR-3iA/U

The FANUC SR-3iA/U is a 4-axis SCARA robot mounted upside down (ceiling mounted) for assembly, pick and place, inspection and packaging work. It carries a 3 kg payload at the wrist and has a 350 mm horizontal reach, moving through a full 360° envelope with no dead zones. It runs on FANUC R-30iB controllers and is programmed through the web-based iRProgrammer interface rather than a teach pendant.

Source checked2026-10-25FANUCScara robot
Hover to measure reach
R 350 mmPAYLOAD 3 kgREPEATABILITY ±0.01 mm1 mm = 0.43 pxSR-3iA/U · TOP VIEWReach to scale · J1 ±225°
Payload
3kg
Reach
350mm
Repeatability
±0.01mm
IP rating
IP20
Axes
4

Specification

2 sources
Categoryscara robot
Weight27 kg

Joints

NameRange min (°)Range max (°)Max speed (°/s)
J1-225225610
J2-225225840
J3
J4-7207203,000

Motion range per axis

arc = published range
J1
450°610°/s
J2
450°840°/s
J4
1,440°3,000°/s

Quick answers

What is the payload of the FANUC SR-3iA/U?
3 kg, per SR-3iA/U SCARA Robot (fanucamerica.com).
What is the reach of the FANUC SR-3iA/U?
350 mm, per SR-3iA/U SCARA Robot (fanucamerica.com).
What is the repeatability of the FANUC SR-3iA/U?
±0.01 mm, per SR-3iA/U SCARA Robot (fanucamerica.com).
How many axes does the FANUC SR-3iA/U have?
4, per SR-3iA/U SCARA Robot (fanucamerica.com).
How much does the FANUC SR-3iA/U weigh?
27 kg, per SR-3iA/U SCARA Robot (fanucamerica.com).
What is the IP rating of the FANUC SR-3iA/U?
IP20, per SR-3iA/U SCARA Robot (fanucamerica.com).

Study notes

  • Repeatability is quoted per axis: ±0.01 mm for J1 and J2, ±0.01 mm for J3, and ±0.004° for J4.
  • J3 is a linear axis with a 140 mm stroke and a maximum speed of 1500 mm/s.
  • J1 and J2 both have a motion range of ±225° and maximum speeds of 610 °/s and 840 °/s respectively.
  • J4 has a motion range of ±720° and a maximum speed of 3000 °/s.
  • Maximum push force is 150 N.
  • Allowable J4 moment/inertia is 0.06 kg·m².
  • I/O, 24 VDC, solenoid valves and air lines are integrated into the arm.
  • Programming uses the web-based iRProgrammer interface on a tablet or desktop computer; no iPendant Touch is needed.
  • Applications listed: assembly, dispensing and sealing, palletizing, picking and packaging.
  • Controller series is R-30iB Plus; the compatible controller listed is R-30iB Compact Plus.
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