# FANUC M-20iB/35S

Hardware · `M-20iB/35S` · verification: source checked

The FANUC M-20iB/35S is a six-axis industrial robot with a 35 kg payload and 1,445 mm reach. It uses an upper arm and inline wrist and is fully encapsulated to IP67. It is intended for high-payload machine tending and loading applications.

## Specification

| Property | Value |
|---|---|
| Category | industrial robot |
| Axes | 6 |
| Payload | 35 kg |
| Reach | 1445 mm |
| Repeatability | 0.02 mm |
| Weight | 205 kg |
| Power consumption | 1 kW |
| IP rating | IP67 |

### Joints

| Name | Max speed (°/s) |
|---|---|
| J1 | 205 |
| J2 | 205 |
| J3 | 260 |
| J4 | 415 |
| J5 | 415 |
| J6 | 880 |

## Connected

- Manufacturer: [FANUC](https://machineschema.com/manufacturer/fanuc.md)
- Controllers: [FANUC R-30iB Plus](https://machineschema.com/controller/fanuc-r-30ib-plus.md)

## Study notes

- Repeatability of ±0.02 mm is stated as based on ISO 9283.
- Datasheet lists J1 motion range as 340° standard or 360° optional.
- J4 and J5 moments are 51 N·m with 2.2 kg·m² inertia; J6 moment is 31 N·m with 1.2 kg·m² inertia.
- The M-20 Series covers 12–35 kg payloads.
- The slim arm contains a user interface.

## Sources

1. [FANUC M-20iB/35S Robot - Short Arm Light to Medium Payload Robot](https://www.fanucamerica.com/products/robot/m-20ib-35s) (accessed 2026-10-25)
2. [m 20ib 35s datasheet](https://www.fanucamerica.com/uploads/files/data-sheets/m-20ib-35s-datasheet.pdf) (accessed 2026-10-25)

---

Source page: https://machineschema.com/hardware/fanuc-m-20ib-35s  
JSON: https://machineschema.com/hardware/fanuc-m-20ib-35s.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.