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Epson RS3-351

The Epson RS3-351 is a SCARA robot with a 350 mm arm reach and a 3 kg maximum payload. It is used for automated pick-and-place, assembly, and other repetitive motion tasks. The document states a 0.34 s cycle time and optional ISO 3 clean/ESD configurations.

Source checked11/11 values · 2026-10-25EpsonScara robot
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R 350 mmPAYLOAD 3 kgREPEATABILITY ±0.01 mm1 mm = 0.43 pxRS3-351 · TOP VIEWReach to scale · schematic
Payload
3kg
Reach
350mm
Repeatability
±0.01mm
Axes
4
Weight
17kg

Specification

1 source
Categoryscara robot
Operating temp min5 °C
Operating temp max40 °C

Joints

NameMax speed (°/s)
J42,600

Quick answers

What is the payload of the Epson RS3-351?
3 kg, per Epson RS3 SCARA Robots - 350mm | Products | Epson US (epson.com).
What is the reach of the Epson RS3-351?
350 mm, per Epson RS3 SCARA Robots - 350mm | Products | Epson US (epson.com).
What is the repeatability of the Epson RS3-351?
±0.01 mm, per Epson RS3 SCARA Robots - 350mm | Products | Epson US (epson.com).
How many axes does the Epson RS3-351 have?
4, per Epson RS3 SCARA Robots - 350mm | Products | Epson US (epson.com).
How much does the Epson RS3-351 weigh?
17 kg, per Epson RS3 SCARA Robots - 350mm | Products | Epson US (epson.com).

Study notes

  • Arm length/reach is J1+J2: 350 mm (175+175 mm); Z-axis stroke is 130 mm (100 mm for clean configuration).
  • Payload is 3 kg maximum and 1 kg rated.
  • Stated cycle time for RS3-351 is 0.34 s.
  • Maximum operating speed is J1+J2: 6,237 mm/s; J3: 1,100 mm/s; J4: 2,600 deg/s.
  • Repeatability is J1+J2: ±0.010 mm; J3: ±0.010 mm; J4: ±0.010 deg.
  • Insertion force is 150 N (15.29 kgf).
  • Maximum/rated inertia is 0.05 / 0.005 kg*m2.
  • Motor wattage is J1: 400 W; J2: 200 W; J3: 150 W; J4: 100 W.
  • User lines include 15 electric lines (15-pin D-Sub) and 3 air lines (6 mm x 2, 4 mm x 1).
  • Mounting hole footprint is 95 x 95 x 160 mm (6-M6); Z-axis diameter is 16 mm.
  • Ethernet/IP is listed as an integrated communications option and is noted as RC620+ only; Profibus, DeviceNet, and CC-Link are named but have no matching protocol ids.
  • Epson RC180 and RC620+ controllers are named, but neither has a matching controller id in the reference list.

Safety

  • Third-party safety certifications are optional.
  • ISO 3 Clean and ESD configurations are available.
  • Operating humidity range is 10-80% non-condensing.
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