# Universal Robots UR20-1750

Hardware · `UR20-1750` · verification: source checked

The UR20-1750 is a six-axis collaborative robot arm with a 1750 mm reach and a 20 kg payload, extendable to 25 kg under boundary conditions. It is programmed through a 12-inch touchscreen running the PolyScope graphical interface and carries I/O, 12/24 V power and RS-485 at the tool flange through an M8 8-pin connector. The arm has an IP65 rating and a Cleanroom Class 4 classification, and the control box supports Modbus TCP, EtherNet/IP and PROFINET.

## Specification

| Property | Value |
|---|---|
| Category | collaborative robot |
| Axes | 6 |
| Payload | 20 kg |
| Reach | 1750 mm |
| Repeatability | 0.1 mm |
| Weight | 64 kg |
| Max TCP speed | 5000 mm/s |
| Power consumption | 0.75 kW |
| IP rating | IP65 |
| Operating temp min | 0 °C |
| Operating temp max | 50 °C |

### Joints

| Name | Range min (°) | Range max (°) | Max speed (°/s) |
|---|---|---|---|
| Base | -360 | 360 | 120 |
| Shoulder | -360 | 360 | 120 |
| Elbow | -360 | 360 | 150 |
| Wrist 1 | -360 | 360 | 210 |
| Wrist 2 | -360 | 360 | 210 |
| Wrist 3 | -360 | 360 | 210 |

## Connected

- Manufacturer: [Universal Robots](https://machineschema.com/manufacturer/universal-robots.md)
- Protocols: [EtherNet/IP](https://machineschema.com/protocol/ethernet-ip.md), [Modbus TCP](https://machineschema.com/protocol/modbus-tcp.md), [PROFINET](https://machineschema.com/protocol/profinet.md)

## Safety

- 23 configurable safety functions are provided.
- Complies with EN ISO 13849-1 (PLd Category 3), EN ISO 10218-1 and UL 1740.
- The teach pendant is a 3-position enabling device.
- Operating ambient temperature range is 0 to 50 °C.
- IP65 protection against dust ingress and nozzle-projected water from any direction.
- Cleanroom classification ISO 14644-1 Class 4 at ≤ 80% velocity and payload.

## Study notes

- Joint architecture is 2-1-3; the arm has 6 rotating joints.
- The 25 kg extended payload applies only with boundary conditions stated in the manual.
- Pose repeatability is ±0.1 mm per ISO 9283; the product page quotes ±0.01 mm.
- Force sensing at the tool flange: force range ±200.0 N, torque range ±20.0 Nm; precision ±5.5 N and ±0.2 Nm; accuracy ±10.0 N and ±1.0 Nm.
- The datasheet lists the tool flange as EN ISO-9409-1-80-6-M8; the product page lists ISO 9409-1-50-4-M6.
- Robot arm footprint is Ø245 mm; arm weight without cable is 64 kg; robot arm cable length is 6 m.
- Control box: IP44, 12 kg, 460 x 449 x 254 mm, 100-240 VAC 47-440 Hz supply, 16 digital in, 16 digital out, 2 analog in, 2 analog out, 4 quadrature digital inputs, 24 V 2 A I/O supply.
- Teach pendant: 3-position enabling device, IP54, 300 x 231 x 50 mm, 1.8 kg including 1 m of cable, 4.5 m cable, 1280 x 800 pixel display.
- Control box interfaces include Ethernet 1 Gb/s, USB 2.0 and USB 3.0, Mini DisplayPort, and an injection moulding machine interface (SPI AN-146 and Euromap-67) on the OEM version only.
- Control box supports ROS/ROS2 and Modbus TCP in client and server roles.
- Status is indicated by a light ring at the robot base; arm can be mounted in any orientation; noise is below 65 dB(A).
- Humidity limit is ≤ 90% RH non-condensing; materials are aluminium, plastic and steel.

## Sources

1. [UR20-1750](https://www.universal-robots.com/products/ur20-1750/) (accessed 2026-10-25)
2. [https://www.universal-robots.com/manuals/latest/en/datasheets/ur20/](https://www.universal-robots.com/manuals/latest/en/datasheets/ur20/) (accessed 2026-10-25)

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