Yaskawa Motoman SG400 Review: Specs, Price and Applications of the 3 kg SCARA Robot
Updated: 2 days ago

The Yaskawa Motoman SG400 is a 4-axis SCARA robot with a maximum payload of 3 kg, an arm length of 400 mm and ±0.01 mm repeatability, listed from USD 13,000. This review covers its full specifications, design, programming options, applications and price, so you can decide whether it fits your automation project.
Quick Verdict
The Yaskawa Motoman SG400 is a 4-axis SCARA robot with a maximum payload of 3 kg, a horizontal reach of 400 mm and a repeatability of ±0.01 mm. It belongs to Yaskawa's SG series of high-speed SCARA robots for small-part assembly, dispensing, part transfer and pick-and-place. The arm weighs 14 kg and is installed on the floor, and it runs on the YRC1000micro controller. It is listed from USD 13,000.
Yaskawa Motoman SG400 at a Glance
Maximum payload: 3 kg
Arm length: 400 mm
Axes: 4
Repeatability: ±0.01 mm
Weight: 14 kg
Controller: YRC1000micro
Price: from USD 13,000
Yaskawa Motoman SG400 Technical Specifications
The table below lists the published specifications of the Yaskawa Motoman SG400.
Specification | Yaskawa Motoman SG400 |
Manufacturer | Yaskawa Motoman |
Model | SG400 |
Robot type | 4-axis SCARA robot |
Maximum payload | 3 kg |
Arm length | 400 mm |
Axes | 4 |
Repeatability | ±0.01 mm |
Controller | YRC1000micro |
Interfaces | EtherNet/IP, PROFINET, PROFIBUS, DeviceNet, POWERLINK, Modbus TCP, Ethernet, USB, 8 digital inputs / 8 digital outputs |
Starting price | From USD 13,000 |
Detailed Technical Data
4 controlled axes
Max. payload 3 kg
Horizontal reach 400 mm
Repeatability ±0.01 mm
Mass 14 kg
Installation floor
Controller YRC1000micro
Design and Build Quality

The SG400 belongs to the Motoman SG-series. Published build data: mass 14 kg; installation floor.
Programming and Software
INFORM and MotoSim
The SG400 runs on the YRC1000micro controller and is programmed from the teach pendant in Yaskawa's INFORM language. Yaskawa's MotoSim software is available for offline programming and simulation.
Industrial Communication
Published interfaces are EtherNet/IP, PROFINET, PROFIBUS, DeviceNet, POWERLINK, Modbus TCP, Ethernet, USB and 8 digital inputs / 8 digital outputs.
Yaskawa Motoman SG400 Applications and Use Cases
Typical applications for the SG400 are material handling, machine tending, assembly, packaging, inspection and dispensing.
Material handling

A 3 kg maximum payload and a 400 mm arm length let the SG400 move parts between stations, fixtures and conveyors.
Machine tending
The SG400 loads and unloads machine tools, presses and moulding machines within its 400 mm arm length.
Assembly
Repeatability of ±0.01 mm supports fitting, inserting and fastening parts in assembly cells.
Yaskawa Motoman SG400 Price and Value
The Yaskawa Motoman SG400 is listed from USD 13,000 on All Things Cobots. The controller, end effectors, safety equipment and integration affect the final price and are quoted separately. Prices are indicative, are not final and may change.
Pros and Cons
Pros
3 kg maximum payload with a 400 mm arm length
±0.01 mm repeatability
Wide choice of industrial fieldbus interfaces
Cons
4 axes limit tool orientation compared with a 6-axis arm
Needs safety fencing or equivalent safeguarding
The 3 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Yaskawa Motoman SG400?
The Yaskawa Motoman SG400 fits electronics and small-parts manufacturers that need fast point-to-point motion.
See the full Yaskawa Motoman SG400 product listing on All Things Cobots.
Yaskawa Motoman SG400 FAQ
How much does the Yaskawa Motoman SG400 cost?
The Yaskawa Motoman SG400 is listed from USD 13,000 on All Things Cobots. The price is indicative and may change, and it does not include end effectors, safety equipment or integration.
What is the payload and arm length of the Yaskawa Motoman SG400?
The SG400 has a maximum payload of 3 kg and an arm length of 400 mm.
How accurate is the Yaskawa Motoman SG400?
Its published repeatability is ±0.01 mm.
How many axes does the Yaskawa Motoman SG400 have?
The SG400 has 4 axes.
How is the Yaskawa Motoman SG400 programmed?
It is programmed from the teach pendant in Yaskawa's INFORM language, and MotoSim is available for offline programming and simulation.
Which controller does the Yaskawa Motoman SG400 use?
It runs on the YRC1000micro controller.
How much does the Yaskawa Motoman SG400 weigh?
Published mass 14 kg.
How can the Yaskawa Motoman SG400 be mounted?
Published installation options: floor.
What is the Yaskawa Motoman SG400 used for?
Typical applications are material handling, machine tending, assembly, packaging, inspection and dispensing.
Specifications and prices are based on manufacturer and distributor information. Prices are indicative, are not final and may change.





