Mitsubishi Electric RH-20FRH Review: Specs, Price and Applications of the 20 kg SCARA Robot
Updated: 2 days ago
The Mitsubishi Electric RH-20FRH is a 4-axis SCARA robot with a maximum payload of 20 kg, an arm length of 850 / 1000 mm and ±0.015 to ±0.02 mm (X-Y) repeatability, listed from USD 31,000. 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 Mitsubishi Electric MELFA RH-20FRH is a 4-axis SCARA robot with a 20 kg maximum payload, arm lengths of 850 or 1000 mm and X-Y repeatability of ±0.015 to ±0.02 mm. It is the highest-payload arm in the RH-FRH series and is built for fast handling, packaging and assembly of heavy parts, with cycle times of 0.30 to 0.36 s. The standard arm is rated IP20, and IP65 oil mist and ISO class 3 cleanroom versions are available. The arm weighs 75 to 77 kg, mounts on the floor and runs on the CR800-D, CR800-R or CR800-Q controller. It is listed from USD 31,000.
Mitsubishi Electric RH-20FRH at a Glance
Maximum payload: 20 kg
Arm length: 850 / 1000 mm
Axes: 4
Repeatability: ±0.015 to ±0.02 mm (X-Y)
Speed: Cycle time 0.30 to 0.36 s
Weight: 75 to 77 kg
Controller: CR800-D, CR800-R or CR800-Q
Price: from USD 31,000
Mitsubishi Electric RH-20FRH Technical Specifications
The table below lists the published specifications of the Mitsubishi Electric RH-20FRH.
Specification | Mitsubishi Electric RH-20FRH |
Manufacturer | Mitsubishi Electric |
Model | RH-20FRH |
Robot type | 4-axis SCARA robot |
Maximum payload | 20 kg |
Arm length | 850 / 1000 mm |
Axes | 4 |
Repeatability | ±0.015 to ±0.02 mm (X-Y) |
Speed | Cycle time 0.30 to 0.36 s |
Controller | CR800-D, CR800-R or CR800-Q |
Interfaces | Ethernet 10BASE-T/100BASE-TX/1000BASE-T, USB, RS-422, SSCNET III/H, encoder input, CC-Link, CC-Link IE, PROFINET, EtherNet/IP, EtherCAT, PROFIBUS, DeviceNet, 8 hand inputs, 8 hand outputs |
Starting price | From USD 31,000 |
Detailed Technical Data
4 axes
Max. payload 20 kg (rated 5 kg)
Arm length 850 or 1000 mm
Repeatability X-Y ±0.015 to ±0.02 mm, Z ±0.01 mm
Cycle time 0.30 to 0.36 s
Mass 75 to 77 kg
Mounting floor
Protection IP20 (IP65 oil mist version, ISO class 3 cleanroom version)
Controller CR800-D, CR800-R or CR800-Q
Design and Build Quality
The RH-20FRH belongs to the MELFA RH series. Published build data: mass 75 to 77 kg; mounting floor; protection IP20 (IP65 oil mist version, ISO class 3 cleanroom version).
Programming and Software
MELFA BASIC and RT ToolBox3
The RH-20FRH runs on the CR800-D, CR800-R or CR800-Q controller and is programmed in MELFA BASIC using Mitsubishi Electric's RT ToolBox3 software, which also provides simulation.
Industrial Communication
Published interfaces are Ethernet 10BASE-T/100BASE-TX/1000BASE-T, USB, RS-422, SSCNET III/H, encoder input, CC-Link, CC-Link IE, PROFINET, EtherNet/IP, EtherCAT, PROFIBUS, DeviceNet, 8 hand inputs and 8 hand outputs.
Mitsubishi Electric RH-20FRH Applications and Use Cases
Typical applications for the RH-20FRH are assembly, electronics handling, machine tending, packaging and inspection.
Assembly
Repeatability of ±0.015 to ±0.02 mm (X-Y) supports fitting, inserting and fastening parts in assembly cells.
Electronics handling
The RH-20FRH is used for electronics handling within its 20 kg payload and 850 / 1000 mm arm length.
Machine tending
The RH-20FRH loads and unloads machine tools, presses and moulding machines within its 850 / 1000 mm arm length.
Mitsubishi Electric RH-20FRH Price and Value
The Mitsubishi Electric RH-20FRH is listed from USD 31,000 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
20 kg maximum payload with a 850 / 1000 mm arm length
±0.015 to ±0.02 mm (X-Y) repeatability
Speed: Cycle time 0.30 to 0.36 s
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 20 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Mitsubishi Electric RH-20FRH?
The Mitsubishi Electric RH-20FRH fits electronics and small-parts manufacturers that need fast point-to-point motion.
See the full Mitsubishi Electric RH-20FRH product listing on All Things Cobots.
Mitsubishi Electric RH-20FRH FAQ
How much does the Mitsubishi Electric RH-20FRH cost?
The Mitsubishi Electric RH-20FRH is listed from USD 31,000 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 Mitsubishi Electric RH-20FRH?
The RH-20FRH has a maximum payload of 20 kg and an arm length of 850 / 1000 mm.
How accurate is the Mitsubishi Electric RH-20FRH?
Its published repeatability is ±0.015 to ±0.02 mm (X-Y).
How many axes does the Mitsubishi Electric RH-20FRH have?
The RH-20FRH has 4 axes.
How is the Mitsubishi Electric RH-20FRH programmed?
It is programmed in MELFA BASIC using RT ToolBox3, which also provides simulation.
Which controller does the Mitsubishi Electric RH-20FRH use?
It runs on the CR800-D, CR800-R or CR800-Q controller.
How much does the Mitsubishi Electric RH-20FRH weigh?
Published mass 75 to 77 kg.
How can the Mitsubishi Electric RH-20FRH be mounted?
Published installation options: floor.
What is the Mitsubishi Electric RH-20FRH used for?
Typical applications are assembly, electronics handling, machine tending, packaging and inspection.
Specifications and prices are based on manufacturer and distributor information. Prices are indicative, are not final and may change.
