Epson T3-B401SS

The Epson T3-B401SS is a tabletop SCARA robot with a 400 mm arm length from Joint #1 plus Joint #2. It has a rated payload of 1 kg and a maximum payload of 3 kg, and its controller is built into the robot base. It runs on AC 100-240 V single-phase power and is supplied with Epson RC+ and RC+ Express software and an E-Stop unit.

Source checked15/15 values · 2026-10-25EpsonScara robot
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R 400 mmPAYLOAD 1 kgREPEATABILITY ±0.02 mm1 mm = 0.38 pxT3-B401SS · TOP VIEWReach to scale · J1 ±132°
Payload
1kg
Reach
400mm
Repeatability
±0.02mm
Weight
16kg

Specification

1 source
Categoryscara robot

Joints

NameRange min (°)Range max (°)
Joint #1-132132
Joint #2-141141
Joint #3
Joint #4-360360

Motion range per axis

arc = published range
Joint #1
-132° / 132°
Joint #2
-141° / 141°
Joint #4
720°

Quick answers

What is the payload of the Epson T3-B401SS?
1 kg, per files.support.epson.com.
What is the reach of the Epson T3-B401SS?
400 mm, per files.support.epson.com.
What is the repeatability of the Epson T3-B401SS?
±0.02 mm, per files.support.epson.com.
How much does the Epson T3-B401SS weigh?
16 kg, per files.support.epson.com.

Study notes

  • Maximum payload is 3 kg.
  • Standard cycle time is 0.52 sec, based on round-trip arch motion (300 mm horizontal, 25 mm vertical) with 1 kg payload.
  • Repeatability for Joint #4 is ±0.02 deg.
  • Joint #3 has a 150 mm linear motion range.
  • Joint #3 maximum down force is 83 N.
  • Allowable moment of inertia for Joint #4: rated 0.003 kg·m2, maximum 0.010 kg·m2.
  • Power supply is AC 100-240 V single phase; power consumption is 0.66 kVa; power cable length is 5 m.
  • Controller is built into the robot base.
  • User electric lines: hand I/O IN6/OUT4 D-Sub 15 pin; user I/O IN18/OUT12.
  • User pneumatic lines: ø6 mm x2, ø4 mm x1.
  • Optional fieldbus I/O boards include EtherNet/IP, EtherCAT, PROFINET, DeviceNet, Profibus, and CC-Link.
  • Integrated vision guidance, IntelliFlex parts feeding, teach pendants, and Epson RC+ 7.0 API are available options.

Safety

  • CE Marking.
  • E-Stop unit with cable is included.
  • Brakes are provided on the Z-axis only.
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