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Brand: Universal Robots
Universal Robots UR20 20 kg Long-Reach Cobot Arm
Description
A 1750 mm long-reach UR Series cobot with IP65 protection
The Universal Robots UR20 is a long-reach collaborative robot with a 20 kg payload, 25 kg under the boundary conditions in the manual, and a 1750 mm reach. It belongs to the newer UR Series, whose joints Universal Robots redesigned with about half the parts of the e-Series, and it reaches 5 m/s TCP speed. The arm is IP65 rated and carries a cleanroom class 4 rating at up to 80% velocity and payload.
Universal Robots lists welding, machine tending, material handling and palletizing as applications for the UR20, and describes a programmable LED light ring at the base for status indication. At 64 kg without cable and a 245 mm base, it is a floor or pedestal arm rather than a bench unit.
Technical specifications
| Parameter | Specification |
|---|---|
| Payload | 20 kg (44.1 lbs); 25 kg (55.1 lbs) with boundary conditions in the manual |
| Reach | 1750 mm (68.9 in) |
| Joints | 6 rotating joints in a 2-1-3 architecture; 360 degrees each way |
| Maximum TCP speed | 5 m/s |
| Joint speed limits | 120 degrees/s at base and shoulder; 150 degrees/s at elbow; 210 degrees/s at wrists |
| Tool-flange force/torque sensor | 200 N and 20 Nm range; 5.5 N and 0.2 Nm precision; 10.0 N and 1.0 Nm accuracy |
| Power draw | 750 W maximum |
| Protection | IP65; ISO 14644-1 cleanroom class 4 at up to 80% velocity and payload |
| Noise | under 65 dB(A) |
| Footprint and weight | Base 245 mm; 64 kg without cable, 6 m arm cable |
| Tool flange | EN ISO 9409-1-80-6-M8 |
Environment, reach and tooling
IP65 makes the UR20 dust-tight and protected against water jets from any direction, which Universal Robots points to for environments with heavy dust or low-pressure water jets; check the full environment, chemicals and temperature against the manual. The larger 80 mm bolt-circle flange accepts heavier grippers and welding or handling tools.
Reach, payload and the centre of gravity of the tool all affect the usable envelope, so size the cobot from the payload curve in the manufacturer documentation rather than from the headline numbers. The arm mounts in any orientation and runs at 0 to 50 degrees C.
Compliance listed in the data sheet: EN ISO 13849-1 (PLd Category 3), EN ISO 10218-1 and UL 1740, with 23 configurable safety functions. The tool connector is M8, 8-pin female, with 12 or 24 V up to 2 A, two digital I/O and two analog inputs or RS-485. Control box and pendant (1.8 kg, three-position enabling) match the smaller arms: 16 + 16 digital, 2 + 2 analog, four quadrature inputs.
With about 64 kg of arm mass, installation needs lifting equipment and a floor or pedestal designed for the load. A long reach multiplies the moment at the base, so check the mounting calculation with the tool at full extension.
Universal Robots cobot models compared
The UR20 is the long-reach arm of the UR Series, with the UR30 as the highest-payload sibling. The repeatability figure is omitted here because the data sheet and the product page do not agree on it.
| Model | Payload | Reach |
|---|---|---|
| UR3e | 3 kg | 500 mm |
| UR7e | 7.5 kg | 850 mm |
| UR12e | 12.5 kg | 1300 mm |
| UR16e | 16 kg | 900 mm |
| UR20 | 20 kg | 1750 mm |
| UR30 | 30 kg | 1300 mm |
Documents and quotation
The attached file is the manufacturer one-page UR20 specification. Confirm the payload case (20 kg, or 25 kg with boundary conditions), the tool weight, the mounting base and the working environment, and send quantity and delivery location with the request. See the robotics category for related arms.
Datasheets & Documents
- Datasheet Universal Robots UR20 technical data sheet (1 page) Download
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About brand
Universal Robots is a Danish manufacturer of collaborative robots (cobots), founded in 2005 and headquartered in Odense, and part of Teradyne Robotics. Seven Star LLC, an independent supplier in Muscat, quotes Universal Robots cobot arms for machine tending, palletizing, screwdriving, welding and assembly cells.
Collaborative robot arms from 3 kg to 30 kg payload
The Universal Robots range covers six-joint arms from the 3 kg UR3e to the 30 kg UR30, programmed on a touchscreen teach pendant with the PolyScope software. Each catalogue page links the manufacturer data sheet, so payload, reach, weight and protection rating can be compared before a quotation is issued.
Typical cobot applications
Machine tending, material handling, palletizing, screwdriving, welding and assembly are application areas named for these arms. Final suitability depends on the tooling, the workpiece and the risk assessment of the complete cell.
Ordering Universal Robots products
Send the arm model, controller generation if known, tooling, quantity and delivery location with the inquiry, so the matching version can be checked against its data sheet before a quotation is issued.
Related products
Frequently Asked Questions
What payload and reach does the UR20 have?
20 kg payload, or 25 kg with the boundary conditions in the manual, and 1750 mm reach.
What protection rating does the arm have?
IP65, with a cleanroom class 4 rating per ISO 14644-1 at up to 80% of velocity and payload.
How fast can the tool move?
Maximum TCP speed is 5 m/s.
What is the tool flange standard?
EN ISO 9409-1-80-6-M8 with an M8 8-pin female connector.
How much does the arm weigh?
64 kg without cable; the arm cable is 6 m long.
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