Epson G3-251 Review: Specs, Price and Applications of the 3 kg SCARA Robot
Updated: 2 days ago
The Epson G3-251 is a 4-axis SCARA robot with a maximum payload of 3 kg, an arm length of 250 mm and ±0.008 mm repeatability, listed from USD 9,000. 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 Epson G3-251 is a 4-axis SCARA robot with a 3 kg maximum payload, 250 mm arm length and ±0.008 mm repeatability. It is built for high-precision, high-speed work such as electronics assembly and lab automation. The arm weighs 14 kg, mounts on a tabletop, ceiling or wall and runs on the Epson RC700-A controller. Its standard cycle time is 0.36 s. It is listed from USD 9,000.
Epson G3-251 at a Glance
Maximum payload: 3 kg
Arm length: 250 mm
Axes: 4
Repeatability: ±0.008 mm
Speed: 0.36 s standard cycle time
Weight: 14 kg
Controller: Epson RC700-A
Price: from USD 9,000
Epson G3-251 Technical Specifications
The table below lists the published specifications of the Epson G3-251.
Specification | Epson G3-251 |
Manufacturer | Epson Robots |
Model | G3-251 |
Robot type | 4-axis SCARA robot |
Maximum payload | 3 kg |
Arm length | 250 mm |
Axes | 4 |
Repeatability | ±0.008 mm |
Speed | 0.36 s standard cycle time |
Controller | Epson RC700-A |
Interfaces | Ethernet (10/100Base-T), USB, RS-232C, standard I/O: 24 inputs / 16 outputs, fieldbus slave: DeviceNet, PROFINET, PROFIBUS-DP, CC-Link, EtherNet/IP, EtherCAT, fieldbus master: DeviceNet, PROFIBUS-DP, EtherNet/IP |
Certifications | CE, EN ISO 10218-1, EN ISO 13849-1, EN 60204-1, RoHS |
Starting price | From USD 9,000 |
Detailed Technical Data
4 axes
Max. payload 3 kg
Arm length 250 mm
Repeatability ±0.008 mm
Weight 14 kg
Mounting tabletop, ceiling, wall
Standard cycle time 0.36 s
Controller RC700-A
Design and Build Quality
The G-Series is Epson's high-performance SCARA line. Published build data for the G3-251: weight 14 kg; mounting tabletop, ceiling, wall.
Programming and Software
Epson RC+ and SPEL+
The G3-251 runs on the Epson RC700-A controller and is programmed in the Epson RC+ development environment using the SPEL+ language.
Industrial Communication
Published interfaces are Ethernet (10/100Base-T), USB, RS-232C, standard I/O: 24 inputs / 16 outputs, fieldbus slave: DeviceNet, PROFINET, PROFIBUS-DP, CC-Link, EtherNet/IP, EtherCAT and fieldbus master: DeviceNet, PROFIBUS-DP, EtherNet/IP.
Epson G3-251 Applications and Use Cases
Typical applications for the G3-251 are small parts assembly, electronics handling, medical device assembly, testing, packaging and dispensing.
Small-Parts Assembly
The SCARA layout moves quickly point to point, and ±0.008 mm repeatability suits inserting and fitting small components.
Pick and Place and Kitting
A 3 kg maximum payload and a 250 mm arm length cover transfer between trays, feeders and conveyors.
Dispensing and Testing
The G3-251 follows dispensing paths and loads test fixtures in electronics and medical device production.
Epson G3-251 Price and Value
The Epson G3-251 is listed from USD 9,000 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 250 mm arm length
±0.008 mm repeatability
0.36 s standard cycle time
Tabletop, ceiling, wall mounting
High-performance SCARA line
Cons
Four axes: parts cannot be tilted
The 3 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Epson G3-251?
The Epson G3-251 fits electronics, medical device and consumer goods manufacturers that need fast, precise point-to-point motion.
See the full Epson G3-251 product listing on All Things Cobots.
Epson G3-251 FAQ
How much does the Epson G3-251 cost?
The Epson G3-251 is listed from USD 9,000 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 Epson G3-251?
The G3-251 has a maximum payload of 3 kg and an arm length of 250 mm.
How accurate is the Epson G3-251?
Its published repeatability is ±0.008 mm.
How many axes does the Epson G3-251 have?
The G3-251 has 4 axes.
How is the Epson G3-251 programmed?
It is programmed in the Epson RC+ development environment using the SPEL+ language.
Which controller does the Epson G3-251 use?
It runs on the Epson RC700-A controller.
How much does the Epson G3-251 weigh?
Published weight 14 kg.
How can the Epson G3-251 be mounted?
Published mounting options: tabletop, ceiling, wall.
What is the Epson G3-251 used for?
Typical applications are small parts assembly, electronics handling, medical device assembly, testing, packaging and dispensing.
Specifications and prices are based on manufacturer and distributor information. Prices are indicative, are not final and may change.
