Mitsubishi Electric RH-3CRH Review: Specs, Price and Applications of the 3 kg SCARA Robot
Updated: 2 days ago
The Mitsubishi Electric RH-3CRH 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 15,800. 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-3CRH is a 4-axis SCARA robot with a 3 kg maximum payload, a 400 mm arm length and ±0.01 mm repeatability. It is a small, lightweight horizontal arm for high-speed pick-and-place and small-part assembly, reaching a composite speed of 7,200 mm/s. The arm is rated IP20. It weighs 14 kg, mounts on the floor and runs on the CR800-CHD controller. It is listed from USD 15,800.
Mitsubishi Electric RH-3CRH at a Glance
Maximum payload: 3 kg
Arm length: 400 mm
Axes: 4
Repeatability: ±0.01 mm
Speed: Max. composite speed 7,200 mm/s
Weight: 14 kg
Controller: CR800-CHD
Price: from USD 15,800
Mitsubishi Electric RH-3CRH Technical Specifications
The table below lists the published specifications of the Mitsubishi Electric RH-3CRH.
Specification | Mitsubishi Electric RH-3CRH |
Manufacturer | Mitsubishi Electric |
Model | RH-3CRH |
Robot type | 4-axis SCARA robot |
Maximum payload | 3 kg |
Arm length | 400 mm |
Axes | 4 |
Repeatability | ±0.01 mm |
Speed | Max. composite speed 7,200 mm/s |
Controller | CR800-CHD |
Interfaces | Ethernet, CC-Link, CC-Link IE, PROFINET, EtherNet/IP, EtherCAT, PROFIBUS, DeviceNet, 32 inputs, 32 outputs |
Starting price | From USD 15,800 |
Detailed Technical Data
4 axes
Max. payload 3 kg (rated 1 kg)
Arm length 400 mm
Repeatability X-Y ±0.01 mm, Z ±0.01 mm
Max. composite speed 7,200 mm/s
Mass 14 kg
Mounting floor
Protection IP20
Controller CR800-CHD
Design and Build Quality
The RH-3CRH belongs to the MELFA RH series. Published build data: mass 14 kg; mounting floor; protection IP20.
Programming and Software
MELFA BASIC and RT ToolBox3
The RH-3CRH runs on the CR800-CHD controller and is programmed in MELFA BASIC using Mitsubishi Electric's RT ToolBox3 software, which also provides simulation.
Industrial Communication
Published interfaces are Ethernet, CC-Link, CC-Link IE, PROFINET, EtherNet/IP, EtherCAT, PROFIBUS, DeviceNet, 32 inputs and 32 outputs.
Mitsubishi Electric RH-3CRH Applications and Use Cases
Typical applications for the RH-3CRH are assembly, electronics handling, machine tending, packaging and inspection.
Assembly
Repeatability of ±0.01 mm supports fitting, inserting and fastening parts in assembly cells.
Electronics handling
The RH-3CRH is used for electronics handling within its 3 kg payload and 400 mm arm length.
Machine tending
The RH-3CRH loads and unloads machine tools, presses and moulding machines within its 400 mm arm length.
Mitsubishi Electric RH-3CRH Price and Value
The Mitsubishi Electric RH-3CRH is listed from USD 15,800 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
Speed: Max. composite speed 7,200 mm/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 3 kg maximum payload includes the end effector
End effectors, safety equipment and integration are quoted separately
Who Should Buy the Mitsubishi Electric RH-3CRH?
The Mitsubishi Electric RH-3CRH fits electronics and small-parts manufacturers that need fast point-to-point motion.
See the full Mitsubishi Electric RH-3CRH product listing on All Things Cobots.
Mitsubishi Electric RH-3CRH FAQ
How much does the Mitsubishi Electric RH-3CRH cost?
The Mitsubishi Electric RH-3CRH is listed from USD 15,800 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-3CRH?
The RH-3CRH has a maximum payload of 3 kg and an arm length of 400 mm.
How accurate is the Mitsubishi Electric RH-3CRH?
Its published repeatability is ±0.01 mm.
How many axes does the Mitsubishi Electric RH-3CRH have?
The RH-3CRH has 4 axes.
How is the Mitsubishi Electric RH-3CRH programmed?
It is programmed in MELFA BASIC using RT ToolBox3, which also provides simulation.
Which controller does the Mitsubishi Electric RH-3CRH use?
It runs on the CR800-CHD controller.
How much does the Mitsubishi Electric RH-3CRH weigh?
Published mass 14 kg.
How can the Mitsubishi Electric RH-3CRH be mounted?
Published installation options: floor.
What is the Mitsubishi Electric RH-3CRH 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.
